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NONG NGHIEP VA PHAT TRIEN NONG THON BHTL
TRU'dNG
BAI HQC
THUY Lgfl
175
Tay Sun
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Quan Bong Ba
-
Ha Npi
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Q
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BAO CAO
T6NG
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KHOA HQC VA KY THUAT
£>i
tdi:
NGHIEN
ctru
TIM NGUYEN NHAN VA
DE XUAT GIAI PHAP KHAC
PHyC
MOT
SO
T6N
TAI

PHAT SINH KHI
VAN
HANH
CU^A
VAN
DAP
DAY
So
dSng
ky:
Hd Ngi,
ngdyti thdng^ndm
2010
CHU NHIfM
fife
TAl
FGS.TS.
BS
vSn Hua
HdNgi,
ngdylc
thdng^
ndm 2010
HOI
B6NG
DANH
GIA
CHINH
THlTC
CHU

TICH
HOl
D6NG
Hd Npi,
ngccyti thdngfndm
2010
ca
QUAN CHU
TRI
i>t
TAI
^fpi-HBfU
TRUdNG
/f RUdNG
B^l
HQC THUY
LQI
HdNgi,
ngay
thdng
ndm 2010
CO
QUAN QUAN
LY
fife
TAI
DIWONG
DANH SACH CAC CA NHAN THAM GIA CHINH
TT
1

2
3
4
5
6
7
8
9
10
11
Hg ten
PGS.TS.
Vu Thanh Hai
GS.TS Nguyin Van Le
Th.S.
Le
dinh
Phat
PGS.TS Hoang dmh Tri
TS.
Nguyen dinh Tan
PGS TS Trin manh Tuan
ThS.
Nguyin anh Diing
ThS Vu hoang Hung
TS Hoing xuan Thanh
ThS.
Hoing anh Giang
Th S Trinh quang Thiiy
Co quan

Tracmg Dai hgc
Thiiy loi
Tradng Dai hgc
Thiiy lgi
Vien khoa hgc
thiiy Igi
Tradng Dai hgc
Thuy lgi
Tradng Dai hpc
Thiiy Igi
Tradng Dai hgc
Thity lgi
Tracing Dai hgc
Thity Igi
Tradng Dai hgc
Thiiy Igi
Tracmg Dai hgc
Thiiy Igi
Vien KH CN
XDBgXD
BQL cdng frinh
phan lu sdng
Day
Nhiem
\"u
Tradng nhdm phu trach nhdm
NC frang thai img suat khi md
lech
Tratjng
nhdm phan tich ket

qua.
Tradng nhom phu trach nhdm
NC frang thai irng suat khi md
can
Phu frach theo doi do bien
dang va luc keo cu dap Day
Phu trach nghien cim vat lieu
thep dap Day
Phu trach do dac khao sat an
mdn
Phu trach chuyen de phan tich
So lieu do thtrc te
Phuang an gia cd gdi ban le
Tratjng
nhdm khao sat do dac
chuyen vi cua van va dp lech
true
Tmdng nhom do bien dang va
lire
keo van
Bao cao tong quan cdng trinh,
van de nut mdi han, tieng keu.
13
GO
(33/6
Z?^'-^
DANH SACH CAC BANG
TT
1
2

3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
So thii- tu
cAa
bang
Bang
2.1
Bang 2.2

Bang
3.1
Bang 3.2
Bang
3.3
Bang 3.4
Bang 3.5
Bang 3.6
Bang
3.7
Bang
3.8
Bang
3.9
B4ng3.10
Bang
3.11
Bang
3.12
Bang
3.13
Bang
4.1
Bang
4.2
Bang
4.3
Bang 4.4
Bang 4.5
Bang

4.6
Bang 4.7
Bang 4.8
Bang 4.9
Bang 4.10a
Bang 4.10b
Ngi dung
Tdng hgp ket qua do an mdn d cac ket cau
Ket qua do va tinh loan do biin dang theo phuong diing
cac mdc tren cua 7
Gia tri gdc
a
img vdi mdi mftc md cua van
Gdc
P
cua day keo van
Chuyen vi cua mat tran (Tradng hgp
13.9m)
iTng
suat
Sn
va
S22
trong ban mat (khi dinh van 13.9)
LTng suat trong dam chinh sd
1
va sd 9
Chuyen vi dirng (Uz), ngang (Ux) cua gian chdng xoan
Ket qua tinh loan
lire

dgc trong gian chdng xoan(CTI3.9)
Chuyen vi dimg (Uz) ctia gian chdng udn
Luc dgc Idn nhat trong thanh canh
Chuyen vi dimg Uz ciia gian do I
Ket qua tinh loan luc dgc
Idn
nhat trong gian dd 1
Ngi
lire Itm
nhat va nhd nhat trong cac dam phu
Phan
lire
lien ket R tai cac gdi ban le
1.3.6.9
Do chenh theo phuong dirng tai dinh van hai dau
Gia tri gdc
a
ung vdi mdi muc cao
trinh
Gdc
P
ciia day keo van
Ket qua tinh loan chuyen vi
ciia
2 diem A va B khi dinh
vandCT-t^l3.9
Ket qua tinh toan chuyen vi mat
Iran
l/ng
suat

Sl 1
va
S^^
trong ban mat ctia van khi dinh van d
CT+13.9
Ket qua tinh loan chuyen vi cua dam chinh khi dinh van d
CT-i-13.9
Ket qua tinh loan chuyen vj cua dam chinh khi dinh van d
CT-i-13.9
Chuyen vi thang dimg Uz
ciia
dan chdng xoan
Ket qua tinh toan luc dgc trong gian chdng xoan
Ket qua tinh loan
lire
dpc trong gian chdng xoan
Trang
14
48
49
51
52
56
57
60
62
63
64
65
67

68
70
71
71
74
76
76
78
79
83
83
84
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

45
46
47
48
49
50
51
52
53
54
55
Bang
4.11
Bang
4.12
Bang
4.13
Bang
4.14
Bang
4.15
Bang
4.16
Bang
4.17
Bang
4.18
Bang
4.19
Bang 4.20

Bang
4.21
Bdng 4.22
Bang 4.23
Bang 4.24
Bang 4.25
Bang
4.26
Bang 4.27
Bang
4.28
Bang 4.29
Bang
4.30
Bang
4.31
Bang
4.32
Bang
4.33
Bang 4.34
Bang
4.35
Bang
4.36
Bang 4.37
Bang
5.1
Bang 5.2
Ket qua tinh loan chuyen vj cua dan chdng udn khi dinh

vandCT-13.9
Ket qua tinh toan luc dgc trong gian chdng udn
Ket qua tinh toan chuyen vi
ciia
dan dd I khi dinh van d
CT-I-13.9
Ket qua tinh toan luc dgc trong dan dd I khi dinh van d
CT-i-13.9
Ket qua tinh chuyen vi thang dirng
ciia
dan dd II khi dinh
vandCT-H3.9
Ket qua tinh toan luc dgc trong dan dd 11
Ket qua tinh toan ngi luc
ciia
dam phu
dihig
va ngang
Phan
lire
lien ket tai eac gdi ban le khi dinh van d
CT-i-13.9
Ket qua tinh chuyen vi cua 2 diem A va B
Luc keo
ciia
day cap C d tai van phai
Ket qua tinh chuyen vi cua mat
Iran
iSng
suat

Sn
va
S22
trong ban
mSt
cua van
Ket qua tinh chuyen vi dam chinh
Ket qua tinh loan img suit trong dam
chinh
Ket qua tinh chuyen vi ctia din chdng xoan
Ket qua tinh loan luc dgc trong din chdng xoan
Ket qua tinh toan luc dgc trong din chdng xoan
Ket qua tinh chuyen vi ciia dan chdng udn
Ket qua tinh toan ngi luc trong dan chdng udn
Ket qua tinh loan chuyen vi cua dan do 1
Ket qua tinh loan luc dgc trong din dd 1
Ket qua tinh loan chuyen vj thing dirng ciia dan dd 2
Ket qua tinh loan luc dgc trong dan do 2
Chuyen
vi
dam dung d 2 dau van
Chuyen vj dam dirng d 2 dau cua van
Phan
lire
lien ket tai cac gdi ban le
Dien bien ung suit trong thanh din khi keo van
Cac tradng hgp tinh loan
Ket qua tinh toan chuyen vi mat trin
85
85

86
87
88
88
91
92
93
93
94
95
95
96
97
98
99
100
101
102
102
104
104
105
106
107
109
111
116
56
57
58

59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
Bang 5.3
Bang 5.4

Bang
5.5
Bang
5.6
Bang 5.7
Bing 5.8
Bang
5.9
Bang
5.10
Bang
5.11
Bang
5.12
Bang
5.13
Bing
5.14
Bang
5.15
Bang
5.16
Bang
6.1
Bang 6.2
Bang 6.4
Bang 6.5
Bing 6.6
Bing 6.7
Bang 6.8

Bing 6.9
Bang
6.10
Bang
6.11
Bing
6.12
Bang
6.13
Bang
6.14
Bang
6.15
Bing
6.16
Bang
6.17a
Bing
6.17b
LTng suat
Sn
vi
S22
trong ban mat cua van
Ket qua tinh loan chuyen vi dam chinh
Kit qui tinh toin ling suit trong dam chinh
Chuyen vi ctia din chdng xoan
Ket qua tinh loan
lire
dgc trong dan chdng xoan

Ket qua tinh loan chuyen vi cua dan chdng udn
Ket qua tinh loan ngi luc trong dan chdng udn
Ket qui tinh loan chuyen vi ctia dan do 1
Ket qui tinh toin ngi luc trong dan dd 1
Ket qua tinh toan chuyen vi trong din dd 2
Ket qui tinh toan ngi luc trong dan do 2
Ket qua tinh toin ngi
luc
cita dim phu dimg va ngang img
vdi MNTL +13.9 dinh van +13.9
Ket qua tinh toin ndi luc ciia dim phu dimg vi ngang
Phan
lire
lien ket tai cac gdi ban le
Luc keo tao lech ctia day cap d tai van phii
Ket qui tinh loan ehuyen vi cua mat trin
Ung suit
Sl 1
vi S22 trong ban mat cua van
Ket qua tinh toan chuyen vi cua dam chinh
Ket qui tinh toin img suit trong dam chinh
Chuyen vi
ciia
dan chdng xoan
Kit qui tinh toan luc dgc trong din chdng xoan
Ket qui tinh toan chuyen vj
ciia
dan chdng udn
Ket qui tinh toan ndi luc trong din chdng udn
Kit qui tinh loan chuyen vj ctia din do 1

Ket qua tinh toan luc dgc trong dan dd 1
Ket qui tinh loan chuyen vi ctia din dd 2
Ket qua tinh toan luc dgc trong din dd 2
Ket qua tinh loan chuyen vj cita dam phu ngang va dung
Ket qua tinh toan ndi luc ciia dam phu ngang va dftng
Phin luc lien ket tai cac gdi ban le
Chuyen vj d hai dau van
119
121
122
124
126
124
130
132
133
135
137
140
141
143
148
150
153
154
159
161
162
165
166

168
169
171
171
173
175
176
178
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108

109
110
111
112
113
Bing
6.18
Bing
6.19
Bing 6.19a
Bing
6.19b
Bang 6.20
Bang
6.21
Bing 6.22
Bang 6.23
Bing 6.24
Bing 6.25
Bang 6.26
Bing 6.27
Bing 6.28
Bang 6.29
Bang
6.30
Bang
7.1
Bang 7.2
Bing 7.3
Bang 7.4

Bing 7.5
Bing 7.6
Bing 7.7
Bing 7.8
Bang 7.9
Bang
7.10
Bang
7.11
Bing
7.12
Chuyen
\'i ciia
mat
Iran
khi khdng tii vi khi cd tai
Chuyen vi dung cua dam chinh (17) khi cd tai vikhi
khdng tai
Anh hudng cua keo lech tdi chuyen vj vi irng suat ciia
cua van
Diln bien chuyen vi vi iing suat ctia cua van khi dp chenh
hai dau din
Chuyen vi
ciia
dan chdng xoan khi cd tai va khi khdng tai
Chuyen vi cua dan chdng udn khi cd tii vi khi khdng tai
Chuyen vi
ciia
dan do
1

vi 2 khi co tii va khi khdng tii
Ung suat
Sl 1
vi
S22
trong bin mat cua van khi co tii vi
khdng tai
iTng
suit trong dim chinh khi cd tai vi khdng tii
Luc dgc trong din chdng xoan khi cd tii vi khdng tai
Luc dgc trong din chong udn khi cd tii vi khdng tii
Luc dgc trong din
ddi
khi cd tai va khdng tai
Luc dgc trong dan
60
2 khi cd tai vi khdng tai
Ngi luc cua dam phu dftng vi ngang khi cd tii vi khdng
tii
Phin
lire
lien ket tai cac gdi ban Ie
Ung suit
Sii
va
S22
trong bin mat khi dinh van d CT+13.9
Ket qua tinh toin chuyen vi cua dam chinh
Ket qua tinh toin ung suit trong dam chinh
Chuyen vi thang dirng Uz cua din chong xoan

Ndi luc trong cac thanh hi nirt mdi ban
Chuyen vi Uz cua bin mat va dam chinh 9 vi 17
iTng
suat phap S cua ban mat ha luu
Chuyen vi Uz cua giin chdng xoan , chdng udn, gian do 1
vi giin do 2
Luc dgc N trong cic thanh giin chdng xoin, giin chdng
udn, giin dd
1
vi 2
Phin luc gdi ban le Rxz sd
1,9,17
Bing thdng ke thdi diem xuat hien tieng keu
IJng
suit trong 6 dam khi md lech
179
180
188
189
181
182
182
182
183
184
185
186
186
186
187

192
196
197
204
206
210
210
211
211
212
219
220
114
115
116
117
118
119
120
121
122
123
124
Bing
7.13
Bing 7.14
Bang
7.15
Bang
7.16

Bing
7.17
Bing
7.18
Bang
7.19
Bang 7.20
Bing
7.21
Bang 7.22
Bang 7.23
iTng
suit
S|
1
va
S22
trong bin mat cua van
Chenh lech dinh d hai dau cua van AAB(m)
LTng suit phap d bin mat ha
lim
khi md can vi lech
Chenh lech phin luc tai gdi
1
khi md can vi lech
Chuyen vi Uz cua giin chdng xoan khi cao trinh dinh van
va MNTL+13.9
Ket qua tinh loan
lire
dgc trong cac thanh dan chdng xoan

khi cao trinh dinh van va MNTL +13.9
Hieu qua giam dp lech hai dau van khi van hanh chiu ap
luc nudc khi dinh van va MNTL d
+13.9
Chuyen vi Uz hanh E cua giin chdng xoan khi dinh van
va MNTL+13.9
Ket qui tinh toin
lire
dgc trong trong din chdng xoan khi
dinh van vi MNTL+13.9
Phan luc lien ket tai cac gdi ban le khi dinh van va MNTL
+
13.9
IJng
suit trong gdi ban le
221
222
223
224
226
228
229
229
231
233
DANH
SACH
CAC
HINH VE
VA DO

THI
TT
1
2
3
So thii- tu
ciia hinh
Hinh
1.1
Hmh
1.2
Hinh
1.3
Hinh
1.4
Hinh
1.5
Hlnb 1.6
Hinh
1.7
Hinh
1.8
Hinh
1.9
Hinh
1.10
Hinh 1.11
Hinh
1.12
Hinh

1.13
Hinh
2.1
Hinh
2.2
Hinh
2.3
Hinh2.4
Hinh
2.5
Hinh
2.6
Hinh
2.7
Hinh
2.8
Hinh
2.9
Hinh
2.10
Hinh
2.11
Hinh
2.12
Hinh
2.13
Ngi dung
Bin dd khu vuc cdng trinh sdng Diy
Kdt
cau van do Phap xay dung

So dd ket cau cua van sau khi cai tao
So dd ket cau efta vi ket ciu ddng md d
+13.9
Md hinh toin cinh
3D
cua van dap Diy
Dim chinh
Dan tang cucmg hai dau
Mo
hinh
toin cinh nhin tu dudi ctia cua van dap Day
Ket ciu dam chinh, din ngang, din cheo, dim phu ngang
vi
dirng
So dd ket ciu din do
So dd cua van phu
Anh binh xe cu
Cdi bim le
Miy do do day vat lieu parametrics Model 25
So do bd tri ludi do mat ngoii cua 3 vi 7
So dd bd tri cac mdc quan trie tren din chdng xoin sd 7
Anh may toin dac dien tu
LEICA TC-1800
Bieu dd chuyen vi thing dimg hang
1
d ban mat sd 7
Biiu dd chuyen vi thang dimg hang 2 d ban mat sd 7
Bieu dd chuyen
vi
thang dirng hing 3 d ban mat sd 7

Bieu dd lech ngang
ciia true
quay ciia cua van sd 7
Bieu dd lech dung cua true quay
ciia
cua van sd 7
Miy ddng md
May ddng md (chdt thang, cdc ham)
So dd ciu tao cac bd phan co khi co ban cua may ddng
md
Vj tri lip Loadcell
Trang
1
2
5
6
7
7
8
9
10
11
11
12
12
14
16
17
18
21

22
23
25
26
28
28
29
32
Hmh
2.14
Hinh
2.15
Hinh
2.16
Hinh
2.17
Hinh
2.18
Hinh
2.19
Hinh
2.10
Hinh
2.21
Hinh
2.22
Hinh
2.23
Hinh
2.24

Hinh 2.25
Hinh
3.1
ffinh 3.2
Hinh
3.3
Hinh 3.4
Hinh
3.5
Hinh 3.6
Hinh 3.7
Hinh 3.8
Hinh
3.10
Hinh
3.11
Hinh
3.12
Hinh
3.13
Hinh
3.14
Hinh
3.15
Hinh
3.16a
Hinh 3.16b
Hinh
3.17
Hinh

3.18
Hinh
3.19
Hinh 3.20
Cum phien do tren dam chinh
Sa dd vi tri gin phien do tren thanh do
true
cdi ban le
Thiet bi do
Cac ket cau chinh cua van
Vi tri cac vet mil cua
7
Vi tri cic vet nirt cua 6
Vi tri cic vet nirt cua 5
Vi tri cic vet mil cua 4
Vi tri cac vet nirt cua 3
Mdi ban nirt
Mdi han nirt
Hien trang cdi bin le
Md hinh hda ket cau van dip Diy
Mat cat ngang cua van
He tpa dp tinh loan
Hinh dang chuyen vj mil trin
Chuyen vj mat
Iran
Phd chuyen vi bin mat van thay ddi theo muc do md
Phd irng suat ban mat thay ddi theo muc dp md
Dien bien irng suit ban mat thay ddi theo muc do md
Chuyen vj ciia dam chinh sd 9 khi dinh van d
CT+13.9

Phd ftng suit cua cic dim chinh khi dinh van d
CT+13.9
So dd ket eau dan chdng xoan
Bieu dd chuyen vi cua cac hang d giin chdng xoan
Hinh dang chuyen vi ctia giin chdng xoan
Bieu do luc dgc cua giin chdng xoan
Diln bien luc dgc trong thanh 2-3 d cic hing
Dien bien luc dgc trong thanh dirng
1
-2 d cac hing
Ket cau din chdng udn
Hinh dang chuyen vi diing ciia din chdng udn
Phd bieu dd
lire
dgc
ciia
din chdng udn
So dd ket cau dan do
1
34
37
39
41
41
42
43
43
44
44
44

46
48
48
49
50
51
52
53
59
55
55
57
59
59
59
60
61
61
61
63
63
Hlnb 3.21
Hinh 3.22
Hinh
3.23
Hinh 3.24
Hinh
3.25
Hinh 3.26
Hinh

4.1
Hinh
4.2
Hinh
4.3
Hinh
4.4
Hinh
4.5
Hinh
4.6
Hinh 4.7
Hinh 4.8
Hinh
4.9
Hlnb
4.10
Hinh
4.11
Hinh
4.12
Hinh
4.13
Hinh
4.14
Hinh
4.15
Hinh
4.16
Hinh

4.17
Hinh
4.18
Hinh
4.19
Hinh 4.20
Hmh
4.21
Hinh 4.22
Hinh 4.23
Hinh 4.24
Hinh
4.25
Phd bieu dd luc dgc cua din dd 1
Hinh dang bien dang dam phu dirng va dgc
So dd bien dang vi phd bieu dd ndi luc ciia dam dung sd
17.
Khi dinh van
dCT+ 13.9
Phd bieu do ndi luc ctia dam dgc sd
10
Phin luc lien ket tai cac gdi bin le
Dien bien phin luc khi md can
Cua van nhin tft ha luu
Mat cat ngang cua van
Cua van dau trai d cao
trinh
ZA*
Cua van d cao trinh
+13.90

Hinh dang bien dang
ciia
cira van
Hinh dang bien dang
ciia
ban mat van
Dudng thing chuyen vi
Uz
cua bin mat van
Bieu dd chuyen vi thing dirng cua 3 hing I, II,
III
d mat
tran
Bieu
dd irng suit phip
Si i
Bieu dd irng suit phip
S22
Hinh dang bien dang
ciia
cic dam chinh
Hinh dang chuyen vi
ciia
dim chinh sd (17)
Bieu dd ftng suit phip
Si 1
cua cic dam chinh
Bieu do ftng suit phap
Sn
cua bin bung dam sd(l)

Bieu dd img suit phap
S|
1
cda bin bung dam sd (9)
Bieu dd irng suat phap
S11
cua bin bung dam sd
(17)
Bieu dd irng suat phap
S22 ciia
cac dim chinh
Bieu dd irng suit phap
S22
ctia bin bung dam sd (1)
Bieu do ung suit phap
S22
ctia bin bung dim sd (9)
Bieu dd ung suit phap
S22 cila
bin
bgng
dim sd
{17)
Bieu do img suit phip S22 ciia ban canh cac dim chinh
Ket cau din chdng xoin
Bieu dd luc dgc ciia dan chdng xoan
Ket cau dan chdng udn
Bidu
dd luc doc ciia din chdng udn khi dinh van d CT
+13

65
66
66
67
68
68
69
71
72
73
74
75
75
76
77
77
78
78
79
80
80
80
81
81
81
82
82
82
83
84

85
Hinh
4.26
Hinh 4.27
Hmh 4.28
Hinh 4.29
Hinh 4.30
Hinh
4.31
Hinh 4.32
Hinh
4.33
Hinh
4.34
Hinh
4.35
Hinh
4.35'
Hinh
5.1
Hinh
5.2
Hinh
5.3
Hinh 5.4
Hinh
5.5
Hinh 5.6
Hinh
5.7

Hinh 5.8
Hlnb 5.9
Hinh
5.10
Hinh
5.11
Hinh
5-15a
Hlnb5-15b
Hinh
5.16
Hinh
5.17
Hinh
5.18
Hinh
5.19
Ket ciu din dd
1
Bieu do
lire
dgc cua din dd
Ket ciu din dd 2
Bieu do luc dgc cua din dd2
Bieu dd chuyen vi ciia dim phu ngang 2,5,10, dam phu
dimgsd
1,17
vi34.
Bieu do mdmen udn ciia cac dam phu dimg vi ngang
So dd bien dang va bieu dd ngi luc

ciia
dim dirng sd 1
Bieu do ndi luc cua dam ngang sd 2
Phin luc lien ket tai cac gdi ban le
Cua van d cao trinh
+12.90
So dd bien dang ciia dam phu dimg sd
1
va 34
So do tinh toin cua van cd tii
Dudng mat nudc
So dd ap luc nudc tic dung len bin mat van va phucmg
trinh ap luc nudc p(z) ctia mdi doan bin mat van
Bieu dd ap luc thuy tmh bang phd miu cac tmdng hgp
tinh
Hinh
dang bien dang
ciia
bin mat van
Bieu do chuyen vi thing dimg ctia hing 1, II, III d mat
tran
Phd miu chuyen vi Uz
Phd mau ung suit phip
Si i
cua bin mat nhin tu phia tren
(Top)
MNTL+13.9
Phd miu ling suat phap
S22
cua ban mat nhin tu phia tren

(Top)
MNTL+13.9
Vi tri
10
diem dugc xac dinh chuyen vi cita dim chinh
Hinh
dang bien dang ctia cac dim chinh
Phd ung suit
Sn
ban bung cac dam chinh (1), (3). (9)
tradng hgp V (Dinh van
+12,90;
MNTL
+13.90)
Phd ling suit
S22
ban bung cac dam chinh (1), (3), (9)
tradng hap V (Dinh van +12,90; MNTL +13.90)
So dd ket cau gian chdng xoin
Bieu dd chuyen vi hing E, K, F, K', E' cua dan chdng
xoin
Bieu do luc dgc ctia giin chdng xoin
Bieu dd chuyen vi hing E, G', G ciia din chdng udn
86
86
87
88
89
89
90

90
91
92
105
112
113
114
114
115
117
118
118
120
121
123
123
124
125
126
129
Hinh
5.20
Hinh 5.21
Hinh 5.22
Hinh 5.23
Hinh 5.24
Hinh 5.25
Hinh
5.26
Hinh 5.27

Hinh 5.28
Hinh
5.29
Hinh
5.30
Hlnb
5.31
Hinh
5.32
Hinh
6.1
Hinh 6.2
Hlnb 6.3
Hinh 6.4
Hinh 6.5
Hlnb 6.5*
Hinh 6.6
Hinh 6.7
Hinh 6.8
Hinh 6.9
Hinh
6.10
Hinh
6.11
Hinh
6.12
Hmh
6.13
Hlnb
6.14

Hinh
6.15
Hinh
6.16
Bieu dd luc dgc ctia gian chdng udn
Bieu dd chuyen vj hang F va H
cila
gian dd
Bieu dd
luc
dgc ciia giin do 1
Ket cau dan dd
1
Bieu dd chuyen vi hing F va I ctia din dd 2
Bieu do luc dgc
cila
giin dd 2
Hinh dang bien dang dim phu dung va ngang
Bieu do chuyen vi Uz(mm) ctia dim ngang sd 3 trong cic
trucmg hgp
Bieu dd mdmen udn M33 cua cac dam phu dftng va ngang
MNTL
+13,90.
dinh van +13,90
Bieu do ngi luc ciia dam ngang sd 3 MNTL
+13,90,
dinh
van+13,90
So dd bien dang vi Bieu dd ndi luc cua dim dimg sd 1
ung vdi

MNTL+13,90,
dinh van +13,90
Phin luc lien ket tai cic gdi bin li
Bieu do phin luc lien ket tai cic gdi ban le cac tradng hgp
Cua van nhin tu thugng Itm
Ket cau van dip diy
Mat cat ngang cua van
(+13,90)
Bieu dd ip luc thuy tinh
img
vdi MNTL +
10.35
Bieu dd ip luc
thily
ttnh iing vdi MNTL +
11.70
Bieu dd ip luc thiiy tinh img vdi MNTL +
12.90
Bieu dd ap luc thuy
tinh iing
vdi MNTL + 13.90
Phd miu ip luc nudc tic dung len ban mat van
Hinh dang bien dang
ciia
cua van
Hinh dang bien dang ctia bin mat van
Dudng thing chuyen vi Uz ctia bin mat van
Phd miu irng suit phap
Si i
ctia bin mat nhin tft ha luu

Phd mau ting suit phap
S22
cua bin mat van
nhin
ttt ha
luu
Phd miu irng suit phap
Sn
cita bin mat van thugng luu
Phd miu iing suit phap
S22
bin mat thugng luu
Vj tri cac diem tren mat trin cd img suit phap
Idn
nhat
Vi tri cic diem tren mat thugng luu cd img suit phip Icm
nhit
130
133
133
135
136
136
138
138
139
139
140
141
142

144
145
146
146
146
147
147
147
149
149
149
151
151
151
152
152
152
Hinh
6.17
Hinh
6.18
Hinh
6.19
Hmh 6.20
Hmh 6.21
Hinh 6.22
Hinh 6.23
Hinh 6.24
Hinh 6.25
Hinh 6.26

Hinh 6.27
Hinh 6.28
Hinh
6.29
Hinh 6.30
Hinh
6.31
Hinh 6.32
Hinh 6.33
Hinh 6.34
Hinh 6.35
Hinh 6.36
Hinh 6.37
Hinh 6.38
Hlnb 6.39
Hinh 6.40
Hlnb
6.41
Hinh
6.42
Hinh 6.43
Hinh 6.44
Hinh 6.45
Hinh 6.46
Vj tri diem dugc xic dinh cv cua dim chinh
Hinh dang bien dang eua cac dim chinh
Phd mau ftng suit phap
Sn
cua bin
biing

dim
Phd mau
ilng
suit phip
S22 ciia
bin bung dim
(1)
Vi tri cac diem cd
S„ai
va
S^n
cila
ban bung dim
(1)
Phd miu ftng suit phip
Si 1
ctia bin bung dim
Phd miu img suit phap S22
ciia
ban bung dim (9)
Vi tri cic diem cd
S^ax
va
Sm,n
ctia ban bung dam (9)
Phd miu img suit phip
Si 1
cua ban bung dim chinh
(17)
Phd miu ung suit phap

S22
cua ban bung dam chinh
(17)
Vj tri eac diem cd
S„,„
vi
S„i„
cua bin bung dam (17)
Vj tri iing suit phap
Itm
nhit cua bin canh dim chinh
Vj tri ling suit phap
Itm
nhit cui ban canh dim chinh (9)
Vj tri irng suit phap
Idn
nhit cui ban canh dim chinh
(17)
Bieu do chuyen vj
ciia
GCX khi md lech, MNTL +10.35
Bieu dd luc dgc
ciia
giin chdng xoan
Bieu dd chuyen vj hang E, G', G
ciia
gian chdng udn
Bieu dd luc dpc cua gian chdng udn
Bieu do luc dpc cua giin do 1
Bieu dd luc dpc cua dan do 2

Bieu dd chuyen vj Uz(m) cita dim ngang sd 3
Bieu dd mdmen udn cita cic dam phu dung vi ngang ung
vdi MNTL+10.35
Biiu do ndi luc cua dim ngang sd 3 img vdi MNTL
+ 10.35
So dd bien dang vi Bieu do ndi luc ciia dim dimg sd 1
ung vdi MNTL+10.35
Phin
lire
lien ket tai cac gdi ban le iing vdi MNTL +10.35
Bieu dd phan luc lien ket tai cic gdi ban le
Dien biin luc keo lech khi khdng tai (KT) vi khi cd tii
(CT)
Mat cat ngang d hai dau van A* vi B*
Chuyen vj mat Uin khi cd tii vi khdng tii
Dien bien chuyen vj cua nut
17
bing
11
vi III
153
154
155
155
156
156
156
157
157
157

158
158
158
159
162
162
162
166
169
171
173
173
174
174
175
176
177
178
179
180
Hinh 6.47
Hmh 6.48
Hmh 6.49
Hinh 6.50
Hmh 6.51
Hinh 6.52
Hmh
7.1
Hinh
7.2

Hinh
7.3
Hlnb
7.4
Hinh 7.5
Hinh 7.6
Hinh
7.7
Hinh
7.8
Hinh 7.9a
Hinh 7.9b
Hinh
7.10
Hinh
7.11
Hinh 7.12a
Hlnb 7.12b
Hinh 7.13a
Hinh 7.13b
Hinh
7.14
Hinh
7.15a
Hinh 7.15b
Hinh 7.16a
Hlnb 7.16b
Hinh
7.17
Dutmg biiu diln chuyin vj

cila
nut 10 dim chinh
(17)
khi
muc nudc thuong
Itm
ting
Diln biin chuyin vj nut
17
hing E vi F din chdng xoan
Diln biin
ilng
suit
ciia
diim Ml.
AITOP
vi
Ml.AlBOT
khi MNTL thay ddi ttt +10.35 din +13.90
Diln biin ung suit cua diim
Bl.AlO,
Hl.El
vi
Hl.ElO
khi MNTL thay ddi
tu+10.35 din+13.90
Phin luc gdi bin le khi cd tii vi khi khdng tii
Phin
lire
gdi bin le khi MNTL thay ddi

Hlnb dang bien dang
cila
cua van khi dinh van d CT +
13.9
Mat cat ngang cua van
Phd img suit phap
S22
md cin
Phd
ling
suit phap
S22
md lech
Dien bien img suat d ban mil
Hinh
dang bien dang ciia cic dim chinh
Hinh
dang chuyen vj ciia dam chinh sd
(17)
Chuyen vj
ciia
dim chinh sd 1, sd 9, vi sd 17
Phd ling suit phip Sn cua dam chinh sd 1
Phd img suit phip S22 ciia dam chinh sd 1
Dien bien ung suit d cinh vi bung dam chinh
So dd ket eiu giin chdng udn
Chuyen vj cua giin chdng udn khi dinh van d CT + 13.9
(md can)
Ngi luc trong gian chdng udn
Chuyin vj ciia giin chdng udn khi dinh van d CT + 13.9

(md lech)
Ngi lue ctia giin chdng udn khi dinh van d CT + 13.9 (md
lech)
So do ket ciu dan dd
1
Chuyin vj
cila
giin do I khi dinh van d CT +
13.9
(md
can)
Npi luc
cila
gian dd
1
khi dinh van d CT +
13.9
(md cin)
Chuyin vj
cila
gian dd I khi dinh van d CT + 13.9 (md
lech)
Ngi
lire cila
gian dd I khi dinh van d CT + 13.9 (md lech)
Ket ciu din chdng xoin
180
181
183
184

187
187
191
192
192
192
195
196
197
197
198
198
199
200
200
200
201
201
201
202
202
202
203
203
Hinh
7.18
Hinh
7.19
Hinh 7.20
Hinh 7.21

Hinh 7.22a
Hinh 7.22b
Hinh 7.23a
Hinh 7.23b
Hinh 7.24
Hmh 7.25
Hlnb 7.26
Hinh 7.27
Hinh 7.28
Hinh 7.29
Hinh 7.30
Hinh
7.31
Hinh 7.32
Hinh 7.33
Hinh 7.34
Hinh 7.35
Hinh 7.36
ffinh 7.37
ffinh 7.38
ffinh 7.39
Hinh 7.40
ffinh 7.41
ffinh 7.42
Chuyen vj
ciia
GCX khi md lech
Dien bien ngi luc d GCX
Bieu dd
lire

dgc ctia giin chdng xoan
Vj tri nirt mdi hin d GCX
Bieu dd phan bd phan luc
R^, R^
md can d cao trinh +
9.00
Dudng bieu dien phin luc khi md can theo cao trinh dinh
van
Ducmg bieu dien phin luc khi md lech
Dudng bieu diln phin luc khi md lech
Diln bien phin luc gdi
1
khi md cin va md lech theo muc
dp md
An mdn dam chinh & in mdn cua phu
Cac dang phi hdng ducmg hin
Bieu do mdmen xoan d giin chdng xoan cua 7 d muc +
13.9
Khi ning chju
luc
mdi hin
Chuyen vi
cila
he thanh cua van
Phuong an gia cd thanh nen
Vi tri bd xung thanh dung
Mat ha luu da dugc gia cd bang cac dam phu dgc
Dd thj do chenh dinh hai diu van cua sd 7
Chuyen vj hang 3 bin mat ha
lim

Dien bien img suit
S|
i
d bin mat thugng
Itm
Dien bien phan luc gdi
1
khi md cin va lech
Thiet bj ddng md van
Vj tri 5 ming ngan
Ket ciu ming ngan theo phuang in 4
Md hinh khdng gian mdt gdi bin le
Gdi bin le va giai phap gia cd
Su thay ddi img suit khi gia cd cdi ban Ic
204
205
205
205
207
207
208
208
209
213
215
216
216
217
217
218

221
222
222
223
224
225
228
228
230
232
233
Truong Dgi
hoc Thiiy lot
Muc
I
II
ni
IV
I
II
III
IV
V
VI
I
II
III
3-1
3-2
3-3

3-4
3-5
3-6
3-7
I
MUC LUC
Ndi
dung
CHlTONG I Gidi thieu chung
Md diu
Tdng quan ve ket cau cua van Dap Day hien nay
Nhirng hien tugng phit sinh khi vin hanh cua van
Muc tieu va nhiem vu nghien cim
CHlTONG II Ket qui khio sat do dac thuc te hien tradng
Ket qua khao sat an mon
Ket qua do chuyen vi cua
cila
3 vi
ciia
7
Ket qua do bien dang khung chinh, coi bin le va
lire
keo van
Ket qua khio sat hien tucmg nirt moi hin
Khao sat tieng keu
IChao
sat gdi bin le
CHl/ONG III
Phan tich ngi
lire,

irng suit va chuyen vj ciia
cira van cin khi chua chju ap luc nudc.
Dat van de
Phuong phip phin tich kit ciu ctia van -
Phircng
phap PTHH
Phan tich noi luc, chuyen vj
ciia
cua van sd 7.
Chuyen vi vi img suit cua ban mat cira van
Chuyen vj vi ftng suit cua dam chinh
Chuyen vi va noi luc dan chdng xoan
Chuyen vi vi ndi luc dan chdng udn
Chuyen vi vi noi luc dan da 1
Chuyen vi vi noi
luc
cua dim phu dirng va dim phu ngang
Phan luc lien ket tai cac gdi bin le
CHlfONG
IV Phan ti'ch ndi luc, irng suit va chuyin vi
ciia
cua van lech khi chua chiu ap luc nudc.
Npi dung va muc tieu nghien cim
Trang
1
1
5
12
13
14

14
16
27
38
45
46
47
47
47
50
49
54
57
61
63
65
68
69
69
Nghien ciru tim nguyen nhan va de xuat giai
phdp
khac
phue
mot so
hi?n (u(mg ton lgi
khi
van
hanh cua van Dap Ddy
Truong
Dgi hoc Thiiy lai

II
III
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3-9
3-10
IV
4-2
4-3
4-4
4.5
4.6.
4-7
4-8
4-9
4-10
V
1
11
Phuang phip PTHH phin tich ket cau cira van
Tinh toan ngi
lire
vi chuyen vi cua van d CT+13.9
So do tinh loan cua van

Xac dinh
lire
T5
Chuyen vj vi
irng
suit
ciia
bin mat cua van
Chuyen vi va iirng suit
ciia
dam chinh
Chuyen vi va noi luc dan chdng xoan
Chuyen vj va ngi
lire
dan chdng udn
Chuyen vj va
npi lire
dan dd 1
Chuyen vi vi npi luc din dd 2
Chuyen vi vi noi luc cua dam phu dimg va dam phu ngang
Phan
lire
lien ket tai cic gdi ban le
Noi
lire
va chuyen vj cira van d cac cao trinh khic
Xac djnh luc
T4
Chuyen vi vi ftng suit
ciia

ban mat cua van
Chuyen vi va img suit
ciia
dam chinh
Chuyen vj vi npi
lire
din chdng xoan
Chuyen vi vi ngi
lire
dan chong uon
Chuyen vj va ngi luc dan do 1
Chuyen vj vi
ngi
luc dan dd 2
Chuyen vi va
ngi lire ciia
dam phu dftng va dim phu ngang
Phin
lyre
lien ket tai cac gdi ban le
Ket luin vi kien nghj
CHU*ONG
V Phan tich ngi luc, img suit va chuyen vj ciia cua
van cin khi chua chiu ip luc nudc.
Ngi dung va muc lieu nghien cim
Ket qua tinh toan
70
73
73
73

75
77
82
84
86
87
89
91
92
93
94
95
97
99
102
103
105
107
108
111
111
115
Nghien ciru tim nguyen nhdr
vd
de xudi gidi phdp
khac phue
mpt
.so
hi^n
tuang

ion
tgi khi van hdnh
cira
van Ddp Ddy
Tritang
Dgi
hpc Thuy
lai
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
I
11
2-1
2-1-1
2-1-2
2-1-3
2-1-4
2-1-5
2-1-6
2-1-7
2-1-8
III
1
II

2-1
Chuyen vj va irng suat cua ban mat cua van
Chuyen vj va ftng suit cua dam chinh
Chuyen vi vi noi luc dan chdng xoin
Chuyen vj vi ngi
lire
dan chdng udn
Chuyen vi vi ngi
lire
dan da 1
Chuyen vi vi noi luc din do 2
Chuyen vj vi npi luc cua dam phu dung va dam phu ngang
Phin luc lien ket tai gdi ban le
CHlTONG VI Phan tich
ngi
lire,
img suit va chuyen vi cua
efta
van lech chju ap
lire
nudc.
Ngi dung va muc tieu nghien ciru
Ket qua tinh toin
Cuavan dong d
CT+13.9
vi chiu ap luc nudc
Chuyen vi vi iing suit cua bin mat cua van
Chuyen vj vi ftng suit
ciia
dim chinh

Chuyen vj vi ngi
lire
din chdng xoan
Chuyen vj vi ngi
lire
dan chdng udn
Chuyen vj vi ngi
lire
din dd 1
Chuyen vj va ngi
lire
din dd 2
Chuyen vj vi ngi luc cua dim phu dung vi dam phu ngang
Phan luc lien ket tai cic goi bin le
Ket luin vi kien nghi
CHlTONG VH Phin
tich
tim nguyen nhan va de xuat giii
phip khac
phue
Mddiu
Phan tich ngi luc va chuyen vj ciia cua van khi van hinh chua
chju ap luc nudc.
Dien bien ngi
lire
va chuyen vj Dien bien ngi luc
Idn
nhil va
115
120

123
128
131
135
137
141
144
144
148
148
148
153
160
164
168
170
172
175
177
190
191
191
190
Nghien cuu tim nguyen nhdn
vd
de xudt
gidi phdp
khac phue mot
s
hi^n tu^g ton tgi

khi
van hdnh cira van Dap Ddy
Truang
Dgi
hpc Thuy
loi
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
I
II
2-1
2-1-1
2-1-2
2-1-3
2-1-4
2-1-5
2-1-6
2-1-7
2-1-8
III
I
11
2-1
Chuyen vj va iing suit cua bin mat cua van

Chuyen vi va ftng suit cua dam chinh
Chuyen vi vi ngi luc din chong xoan
Chuyen vj va npi
lire
dan chong
u6n
Chuyen vj vi ngi luc din dd 1
Chuyen vi va ngi luc din dd 2
Chuyen vi va ngi luc
ciia
dam phu dirng va dim phu ngang
Phin
lire
lien ket tai goi bin le
CHlTONG VI Phan tieh ngi luc, ung suit va chuyen vj ciia
efta van lech chiu ip luc nudc.
Ngi dung vi muc tieu nghien cim
Ket qui tinh loan
Cuavan dong d CT+13.9 va chiu ap luc nudc
Chuyen vi va irng suit
ciia
ban mat cua van
Chuyen vj vi irng suit cua dim chinh
Chuyen vj vi ngi luc din chdng xoan
Chuyen vj vi ngi luc dan chdng udn
Chuyen vi va noi luc din do 1
Chuyen vi vi noi luc din dd 2
Chuyen vi vi ndi luc cua dim phu dimg vi dim phu ngang
Phin
lire

lien ket tai cic goi bin le
Ket luin vi kien nghi
CHlTONG VII Phan tich tim nguygn nhan vi di xuit giii
phip khac
phue
Md diu
Phan lich ngi luc va chuyen vi cua cua van khi van hinh chua
chju ip
lire
nudc.
Dien bien ngi
lire
va chuyen vj Dien bien ngi luc
Idn
nhit va
115
120
123
128
131
135
137
141
144
144
148
148
148
153
160

164
168
170
172
175
177
190
191
191
190
Nghien ciru tim nguyen nhdn
vd
de xudt
gidi phdp
khac phue mot
so
hien tugng ton
tgi khi
van hdnh cira van Ddp Ddy
Trirong Dgi hpc Thuy
Ipi
2-2
2-3
2-4
2-5
2-6
III
IV
4-1
4-2

4-3
4-4
V
5-1
5-2
nhd nhat d ban mat efta van khi dinh van d CT+13.9.
Diln biin ngi
lire Itm
nhat va nho nhat d dim
ehiiih
khi van bi
lech.
Dien bien chuyen vj vi ndi lue d giin chong uon
Dien bien chuyen vj va ngi luc
Idn
nhit va nhd nhit d gian dd 1
Dien bien chuyen vj va ngi lue
Idn
nhit va nhd nhit d gian
chdng xoan
Phan tich dien bien phin luc gdi tua khi van md lech
Phan tich ngi luc vi chuyen vj cua cua van khi van hanh chju
ap
lire
nudc.
Cic hien
tuting
tdn tai, nguyen nhan vi cac giii phip khae
phue ddi vdi ket ciu cua van
Hien tugng an mdn.

Hi?n tutjrng
nftt mdi han
Hien tugng xuit hien tieng keu
Hien tugng cua van ludn ludn d trong trang thai keo
Igch
Hien trang gdi bin le, giii phip gia cd
Hifn trang gdi ban le
Giai phap gia cd
Ket luin
Phu luc A
Phu
luc
B
Ngi dung chuyen de va bao cio
Tai
li?u
tham khio
195
199
201
203
206
209
212
212
214
218
221
230
230

231
234
236
242
254
257
Nghien cuu tim nguyen nhdn vd de xudt gidi phdp
khac phue
mot
.sc
hi^n
tupng ton tgi khi van hdnh cira van Ddp Ddy
Trirang Dgi hpc Thuy lai
CHlTONG I
GI6I
THIEU CHUNG
I. MdDAU
C6ng trinh
phSn
lu dap Day nam a vung Dan
Phurgng,
Phiic Thg, tinh Ha Tay cu
(tuc Ha Noi hien nay). Cach Ha Ngi 23km,
each ciia
song Day 8km. Dap Day nam ngay
canh ducmg giao thong tu Ha Ngi di Son Tay. Phia tnrac cong
trinh
phan lu dap Day co
2 de noi lien vai de song Hong. Ben trai Dap Day la de La Thach dai 8 km, ben phai la
de

PhiJc
Tho dai
12km.
Duong dan vao tai tuyen de huu song Hong tinh tu de La Thach
den de
Phue
Tho rpng 3km
(hinh
1)
Hinh 1.1. Ban do khu vuc cong
trinh
song Day
Nghien
cuu
tim nguyen nhdn vd de xudt gidi phdp khac phue mot
so
hi4n lupng ton tgi
khi
van hanh cua van Ddp Ddy
Trirang Dai hpc Thiiy lai
Cong trinh phan lu dap Day duac xay dung
each
day han 70 nam. Ngay tu nam 1929
ngucri Phap da nhan thay can phai xay dung cong
trinh
nay
d6
bao ve
thii
do Ha Noi khoi

bj uy hiep eua lu song Hong. Cho nen nam 12/1934 nguai Phap khai cong xay dung
cong trinh dap Day vcri ban thiet ke mgt loai cua van co ket cau rat mai, lan dau tien
ducrc xay dung tren the gioi - Cua van mai nha - vai
hinh
thuc dong ma tu dgng thuy luc
c6
sir
ho trg cua ap luc khi (hinh 2)
MAT CAT NGANG CONG
TRINH
DAP
DAY CU
Hinh
1.2. Ket cau van do Phap xay
dimg
Den thang 7/1937 khanh thanh. Nhiem vu dat ra
liic
bay gia la:
1)
Phan
lu song Hong de bao ve eho Ha Ngi va cac tinh ha luu vai
luu lucrng
thiet
ke
la
3.000
mVs 800
mVs.
2) Chong lu cho nhung vung ven song Day.
3) Chong ling cho

nhijng
vung ven song Day.
D^p
duqrc
xay dung theo kieu mai nha, \gp bang go, mai
thugng
luu goi Ien mai ha luu.
ca 2 deu eo ban le quay gan hen vai ban mong cua dap. Ben trong
bd
tri he
th6ng
phao
(16 phao)gan
ehat
vko
khung chinh a dinh van. Cua nang len ha xuong nha phao va
sue
Nghien ctiu tim nguyen nhdn vd de xudt gidi phdp khac
phue
mot sc
hien tupng ton tgi khi van hdnh
ciia
van Ddp Day
Trirang Dgi hpc Thiiy lai
d3y ciia
nucrc trong
h^m
phao (hinh 1). Cong trinh
g6m
7 cira, moi cua rgng 33.75m ,

cao tu cao trinh 7,00
dan
cao trinh 12,50m. Giua 2
ciia
co tru pin rong rong 3
m,
trong va
tren tru
b6
tri cac
thi^t
bi dong mcr va
diSu
khien dong ma. Tuang nguc cao 2,3 m (tii
cao trinh 12,50
d6n
cao trinh 14,80) dat tren tru pin
d^
giG nuac, giir
eiia
va Iam nhiem
vu cau cong tac.
Nguyen ly lam viec;
Quy trinh dong:
De khong cho nudc
trim
qua, cua van can duge dong lai bang each ma
ciia
van phu a hai
dSu

sat mo tru de dua
nude
vao buong van. Nhd luc day cua nudc trong ham van, phao
trong buong van hi day len, dua van len eao
hem
muc nudc thugng luu.
Ciia
van
liic
nay
d trang thai dong
-
ngan khong cho
niiac
chay ve ha luu.
Quy trinh md:
Lgi dung su
ch§nh l?ch
muc nudc thugmg ha luu, md cua van ha luu trong mo tru de
thao nudc trong buong van ve phia ha luu, phao ha thap dan theo mue nudc trong ham
van
kSt hgrp
vdi tac tac dung eua trgng
luqmg
ban than, cua van dugc ha dan xuong va
cho nudc
trkn
qua.
Vi?c
lgi dung luc day noi cua phao nam dudi cua van va trgng lugng ban than lam luc

nSng,
ha cua van khi hoat dgng ve ly thuyet rat dam bao ky thuat, lgi ve kinh te va quan
ly. Nhung khi thilt
kl
va xay dung da khong
tiiih hit
duge dieu kien khach quan:
Kha nang kho ddng true giiia cac goi ban Ie,
lire
ma sat d nhiJng bg phan chuyen dgng
quay va trugt.
- Qud trinh bien doi ap
luc
nude trong do ap luc thuy dgng rat phiic tap, din den su kho
khan trong dilu khien
ciia
van khi dang boat dpng. Thuc te cho thay khi cua van boat
dpng vdi chenh lech muc nudc thugng ha luu nho (kiem tra) thi ap luc thiiy dgng khong
Idn lim
nen khi nudc tran qua
ciia
van, cung nhu cho nude vao hoac ra buong van de
nang ha
ciia
van khdng anh hudng nhilu den qua trinh hoat dgng
ciia
chiing. Khi md cua
van vdi cgt nude Idn su bien ddi ve ap luc nude tae dung len
ciia
van bien doi rat phiic

t^p
(ap luc nudc trong budng van tac dung 16n phao, mat trong
ciia
van, ben ngoai ap
lire
nude tac dyng len mat ngoai
ciia
van) nen viec ddng md cua van khong diing vdi du kien
thilt kl ban
dSu (k6
ca khi cd hd trg
eiia
hai ep de dieu khiln), the hien qua
nhihig l4n
phan
lu :
- Phan lii
thii
nghiem nam
1939.1941
va 1942 cong trinh lam viec tot,
xii
ly dugc
nhiing true trac ky thuat nho. Phan lii thuc
sir
nhiing nam
1940,
1945,
1947,
ea 3

Ian cong trinh deu co
sir
co va bi hu hdng nang, khdng ddng md duge
ciia
dap, khdng
th\rc
hien dugc nhiem vu phan lu de ra. Vi the:
Nghien ciru lim nguyen nhdn vd de xudt gidi phdp khac
phue
mdt
.so
hien luang ton lgi khi van hdnh cira van Bdp Ddy
Trirang Dai hoc Thiiy lai
Nam
1954
khi hoi binh lip
lai
Chinh
phii
ta da
tiSn
hinh nghien cim. dau
m siia
chira thich ding; tir nim
1954
den nim
1958
nghien
ciiu
va m sua cip tdc cac hu hdng

nang cii . Tir nim
1959
den nim
1961
nghien
ciiai thiSt
ke cii tao dip Diy vtii nhieu y
kien khic nhau chua thdng nhat nhu:
* Phi di va thiet ke mgt dap mdi.
* Sir dung phin mdng vi phin thin cdn cua se dugc thay the bing
ciia
cung.
Nam 1962 - 1964 tiep tuc nghien ciru nguyen nhin su co cua dip de khoi
phue
va sua
chira tich
cue;
nen qua 2 lin phin lu nam 1969,
1971
da ban
chS
dugc cac hu hong
Itim,
cira
vln
lim viec dugc tuy luu lugng xi qua it, khdng chu dgng trong viec ning ha cua.
Chinh phu
quySt
djnh cai tao dip Diy (QD 300/TTg ngiy 7.2/1974) vdi nhiem vu thirc
hien phan lii dugc khan tmong, an toin, chinh xic, thirc hien ddng md

chii
dgng. an toan
vdi nhiem vu:"dan lu tir sdng Hdng vio song Day vi thoit lii qua dap Diy vdi
Itm lut;mg
5.000
m
Is,
theo dang lii nam 1971, giir
mire
nudc d Hi Ngi khong len qua cao trinh tuyet
doi
13,60
m".
De thirc hign nhiem vu tren, mgt trong cic hang muc dugc cii tao li
kSt
ciu cira
van dip Diy. Nim
1974
-
1975
di lien hinh:
Hoinh triet
ciia
so
1
.
Ning cao tru pin tir cao trinh 14,80 m len cao trinh 16,00 m vi md rgng mat tru
tir 3,0 m Ien 8,20 m de bd tri thiit bi ning ha ciia.
Giir nguyen kit ciu,
hinh

dang tudng nguc, kich ning tudng
ngtrc
tir cao trinh
14,80
m len cao trinh
16,00
m.
Siia
chira ciia mii nha thinh
ciia
quat c6
* Chiiurgng
B= 33,75 m
* Chiiu cao cira (chin nudc): H = 13,9 - 9,00 = 4,9 m
*
Ban kinh
quay R= 10,75 m
* Trgng lugng G = 160 tan ( ki ci phin cu)
Giir
nguydn
17 tam quay ha
lim
gan vdi bin day; bd mii thugng luu va cac bin li
quay phia thugng luu.
* Ning cao ngudng thugng Itm den cao trinh 9,00 m.
* Mdi cira dugc bo tri 2 miy ddng md co
siic
ning ha 75 tin (ky hieu
75V) chay bing dien (hinh 1.3)
Nghien ciru tim nguyen nhdn

va
de xudt
gidi phdp khac
phue moi
s
hien luang ion lai khi van hanh cira van Dap Day