(16^
BO
KHOA
HOC VA
CONG NGHE
CHUONG TRINH KHCN CAP NHA NUOC KC 08/06-10
B6
TAI:
"Nghien
ciru
co sd khoa hpc vd
de
xuat
cdc gidiphdp
khoa hpc cong nghe bdo ddm su on
dinh vd
do ben ctia de Men
Men cd trong
trirdng Itpp
sdng, trieu cudng trdn qua de"
Ma
so:
KC08.15/06-10
THUYET
MINH
THI^T
Kl^
MAU
DE
BI^N
TRAN
NLTaC
CHO VUNG NGHIEN
CLCU
TRONG
DlfiM
OE BifiN
GIAO THUY - NAM DINH
CCT
quan chu
tri:
Tru'ang
Dai hoc Thuy Igi
Chu nhiem
6%
tai: GS.TS. Ngo Tri Vieng
Ha
noi,
2010
BO KHOA
HOC VA
CONG
NGHE
CHirONG
TRINH
KHCN CAP NHA NlTdC
KC 08/06-10
Dfe
TAI:
'Nghien cuu cff sd khoa hpc vd di
xudt
cdc
giaiphdp
khoa hpc cong nghi bao dam
sfr
dn
dfnh
vd dd bin ciia de bien
hi$n CO
trong
trtr&ng
hffp
sdng,
triiu
cwcmg
trdn qua de"
Ma s6: KC08.15/06-10
THUYET
MINH
THlfeT
YVt.
MAU
Qt
B\tU
IRAN
Ny^^C
CHO
VONG
NGHIEN
CCTU
TRQNG
DI^M
DE
BI^N
GIAO
THUV
-
NAM
CINH
CHU
NHIEM DE
TAI
GS.TS.Ng6 Tri Viing
BAN cm}
NHIEM
CHU'ONG TRINH KC.08/06-10
CO QUAN CHU
TRI
Tnrong
Dai hoc Thuy
Igi
BO KHOA
HOC VA
CONG
NGI
E
Ha noi,
2010
ion-
i'f
Art f Q T 7rMfl)
D6 t4i
NCKH
dp tiha nude
KC08
-15/06 -10
MUC LUC:
Chiromgl
2
TONG
QUAT 2
1.1.
NHtJNG
CAN
ClTDE
LAP THIET KE CO
S6
2
1.2. CAC
D6I
TUONG LAP
THifiT
KE CO SO 3
Chinmg2
4
CAC TAI
LIEU
DUNG
TRONG THIET KE 4
2.1
TAI LIjU DIA
HINH 4
2.2 TAI LIEU DIA CHAT 4
1 Cac chi tieu ca ly
ciia dSt
nSn:
4
2.
Vat lieu xay dung
11
Chiixrag3
12
GIAI PHAP KY
THUi^T
NANG CAP BE 12
3.1.
CAC CHi TIEU
THifiT
KE 12
3.2. TINH TOAN XAC DJNH CAO TRINH DINH DE 12
1 Xac dinh
mirc nuijc bi6n
tinh toan 12
2.
Mirc
nirac dang do
bSo
13
3.
Gio va da gio thiit
ke:
13
4 Tinh toan song ti gio thiet
Ice:
14
5.
Xac dinh
chiSu
cao song leo tren mai ke: 15
6. Ket qua tinh toan cao trinh dinh de 16
3.3.
TINH TOAN KET CAU
LAT
MAI KE 16
1.
Tinh toan trong
lirgng
cau kien
phii
mai: 16
2.
Tinh toan thilt
kS
chan khay:
18
3.
Thi6t k6
lop
loc:
19
3.4.
KlfiM
TRA
ON
DJNH MAI
DE PHIA
DONG VA PHIA BIEN 20
CHUOWGIV:
KJfcT
LU^
&
KIEN
NGHI 22
4.IKETLUAN:
22
4.2
KIEN NGHI: 22
TM Thiet
k^
mlu di biin tran
nude
cho ving trgng
diSm
Nam Djnh (Giao Thuy)
Bi tai NCKH dp nha nuoc KC08
-15/06 -10
Chinnig
I
TINH
HINH CHUNG
1.1.
NHtTNG
CAN
Cir
DE
LAP
THIET KE CO S6.
1) Cac van han phap guy chinh.
Can cu
quydt
dinh s6
1562/QD-BKHCN
ngay 2/8/2007 cua Bp truong
B5
KHCN
vS
viec to
chiic
cac ca nhan trung
tuygn
chu tri di tai
thupe
ehuang trinh
"Khoa hpc va cong
ngh$
phuc vu phong tranh thien tai,
b4o
ve moi truong va su dung
hop
ly
tai nguyen thien nhien".
Can
cii
vao
quySt
djnh
s6
2801/QD - BKHCN ngay
26/11/2007
cua Bp truong
Bp KHCN ve
vi& phS
duyet kinh phi
di
tai cap nha nuoc "Nghien
ciiu
ca sa khoa
hpc va de
xuSt
cac giai phap khoa hpc cong nghe bao dam
sir 5n
dinh va dp
b6n ciia
de bien hien co trong truong hpp song,
tri6u
cudng tran qua de".
can
cu vao hpp
dSng nghien ciiu Ithoa
hpc va phat trien cong nghe ngay
15
thang 12 nam 2007
giQa
ban chu nhiem
Si
tai vai
chil
nhiem
dS
muc, don vi khao sat
thupe
truong Dai hoc Thuy lai da tien hanh khoan khao sat ngoai hien truong, lay
man thi nghiem eac ehi tieu co ly va
t6ng
hpp viet bao cao danh gia hien trang de tai
khu vuc de
biSn huyen
Giao
thtiy
tinh Nam dinh.
2) Cac
tiSu
chuan. guv pham ap dung.
- Nghi dinh 209/2004/ND-CP ngay 16/12/2004
ciia
chinh phu vi quan ly cac du
an diu tu xay
dimg
cong trinh.
- Nghi djnh 99/2007/ND-CP ngay 03/06/2007 ctia chinh phu vi quan ly chi phi
dSu
tu xay dung cong trinh.
Bang
thSng
ke cac tien chuan, quy pham sa dung trong thilt kl
14 TCN 145 - 2005
14
TCN 186-2006
14 TCN 165 : 2006
14 TCN 195 - 2006
14 TCN 171-2006
TCXDVN 285:2002
QPTLA.6-77
Hudng din lap dl cuong khao sat thilt kl cong trinh
thily
loi
Thanh phin, khoi lupng khao sat dia hinh trong cac giai doan
lap du an va thilt kl cong trinh Thuy
Ipi.
Thanh phan, kh6i luong khao sat dia hinh cong trinh
dS
dieu
Thanh phin,
ldi6i
lupng khao sat dia chat trong cac giai doan
lap du
4n
va thiet ke c6ng trinh Thuy
Igi
Thanh phin,
n6i
dung
ISp b4o
cao diu tu,
dir
an diu tu va
bao eao kinh
tl,
ky thuat eae du an thuy
Igi.
C6ng trinh
Tliiiy
loi -
C4c
quy dinh chu
ylu
vl thiet kl
Quy
pham
phan cap
dS
TM
ThiSt k6
mau
6B biSn
tran nuac cho vung trpng
di€m
Nam Dinh (Giao Thuy)
Dl tai NCKH cip nha nuac KC08
-15/06 -10
14.TCN.43.85
TCVN-4253-86
TCVN
QPTLC-1-78
14-TCN-130-2002
Duong thi e6ng cong trinh thuy loi quy pham thiet ke
Nen cac
cong
trinh thuy c6ng
Quy pham thilt kl thi cong va nghiem thu cong tac dit va
cong trinh
bang dat
Quy pham tai trpng
v4 lire
tie dung len CTTL
Huong din thilt kl de bien
1.2.
CAC
D6I
TUONG
LAP
THIET
Kt CO
S6
- Binh do
tuyIn
de
- Mat cit de
TM Thiet ki
mlu
46
biin ttan
nuoic
cho vung
hrong
diSm
Nam Djnh (Giao Thuy)
De tai NCKH cip nha nude
KC08 -15/06 -10
Chu-ong 2
CAC TAI LIEU DUNG TRONG THIET KE
2.1.
TAI
LIEU BIA
HINH.
Tai
li?u
khao sat dia hinh
do
ve
gSm:
mat
bang,
cat ngang
tuyIn
de.
- Tai lieu khao sat dia hmh khu vuc du an thirc hien thang 03/2008.
2.2.
TAI LlfUBU
CHAT.
2.2.1.
Cac chi tieu
c<r
ly ciia dat nen :
Tir
ket qua khoan khao sat dia chit ngoai thirc dia va thi nghiem
mlu
trong phong dia ting khu
virc
nghien
ciiu
trong pham vi chiiu sau khoan khao
sat
tit
tren xuong
duoi
nhu sau:
/. Larp
la: Cdt
Cat hat nho, mau sang, ket cau chat, trang thai bao hoa nuac. Lop nay
chii
yeu phan bo tron dien hep va chi gap tai cac
h6
khoan HKI, HK4, HK7,
nim
a
phia bien.
Ngu6n
goc honh thanh la
b6i
tu tre
6
chon de phia
biin.
Lop cat co
be day 0,9-l,5m. Khong
lly
mau thi nghiem tai lap nay.
2.
Ldp
1:
Bat dip
Dat dap thon de thanh phan la cat, cat pha mau xam den, xam sang, ket
cau chat, doi cho chiia chat hiiu co, v6 so, v6
hin.
Day la lop co he so thim kha
Ion,
nen khong co kha nang chong tham tot cho de. Lop co bl day trung binh
4,0-4,5m. Lop nay gap
a
tat ca cac ho khoan a dinh de. Lop nay tien hanh lly
mau thi nghiem tai cac ho khoan. Ket qua phan tich cac tinh chat co ly cua lop
1 cho gia tri trung binh dugc trinh bay trong bang
2-1.
TM Thilt ke mau de bien tran nuac cho vung trpng diem Nam Dinh (Giao Thuy)
De tai NCKH cip nha nuac KC08
-15/06 -10
Bang
2-1:
Gid tri trung binh
ctic
chi
tieu
ca ly cua
cdc
lap ddi 1
TT
1
2
3
•
5
6
7
g
9
10
11
12
13
14
15
16
Ten chi tieu
Thanh
phSn hat
Set <0.005
Bui 0.005- 0.01
0.01-0.05
Cat
0.05-0.1
0.1-0.25
0.25-0.5
0.5-2.0
San soi 2.0-5.0
5.0-10.0
Giai
h^
chay, %
Giai han
deo,
%
Chi so
dec,
%
Dp
set
Dp am tu nhien, %
Khoi lupng the
tich,
g/cm'
Kh6i lupng the tich kho,
g/cm^
Ty trpng
He so rong
D6 rong, %
Dp bao hoa,%
Luc dinh dan vi,
kG/cm^
Goc ma sat trong, dp
He
si
nen
liin,
cm^/kG
He s6
thim, (cm/s)
L&p1
11.4
7.5
13.3
22.1
30.7
14.1
1.0
1.0
30.9
19.9
8.80
0.54
20.46
1.84
1.53
2.68
0.75
42.91
71.77
0.11
18P48'
0.092
1.1x10""
TM Thiet ke
mhi
di
biin
tran
nu6c
cho
viing
trong dilm Nam Dinh (Giao Thiiy)
Dl tai NCKH cip nha nuac KC08
-15/06
-
10
3.
Ldp lb. Bat
set
pha, trang thai
deo
mem din deo chay.
Dat set pha mau xam
nsiu,
xam hang, xam den, ket cau kem chat, trang thai
deo mem den dec chay. Lop co chiiu day tii 0,30m den 2,0m. Ket qua phan
tich cac tinh chit co ly cua lap lb cho gia tri tnmg binh dugc trinh bay trong
bang
2-2.
Bang 2-2: Gid tri trung
binh
cdc chi
tieu
ca ly cua cdc lap dat lb
TT
1
2
3
4
5
6
7
g
9
10
11
12
13
14
15
16
Ten chi tieu
Thanh phan hat
sa
<0.005
Bui 0.005- 0.01
0.01-0.05
Cat
0.05-0.1
0.1-0.25
0.25-0.5
0.5-2.0
San soi 2.0-5.0
5.0-10.0
Gioi han chay, %
Gioi han
deo,
%
Chi so
dec,
%
Dpsft
Dp im tu nhien, %
Khii lugng thi
tich,
g/cm'
Khii
lupng
thi
tich
kho,
g/cm'
Ty
ttpng
HS
so
rSng
DO
rSng, %
DO bao hoa,%
Luc dinh don vi,
kG/cm^
Goc ma sat trong, dp
He s6 nen
liln,
cm^/kG
HpslthSm,
(cm/s)
Lcrplb
26.0
14.3
22.7
13.3
22.7
1.0
39.7
24.2
15.8
0.53
32.5
1.86
1.41
2.71
0.93
48.1
94.8
0.16
13°22'
0.123
4.1x10''
TM Thi6t
ki
mlu de
bidn
ttin
nude
cho
viing
trpng
diem Nam
Djnh
(Giao
Thuy)
DS
tai NCKH
cip
nha nuoc
KC08 -15/06 -10
4. Ldp 2: Bat
cdt
pha, bao hoa
nu&c.
Day la lop cat pha mau xam den, xam
h6ng,
kit
ciu chat, trang thai bao
hoa nuac. Lop nay chi gap a cac h6 khoan
HKI
den HK9, lop co be day trung
binh tir 5,0m-6,6m. Ket qua phan tich cac tinh chat co ly cua lop 2 cho gia tri
trung binh dugc trinh bay trong bang 2-3.
Bang
2-3:
Gid tri trung
binh
cdc chi
tieu
ca ly
ciia
cdc lap dat 2
TT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Ten chi
ti€u
Thanh phan
hat
Set <0.005
Bui 0.005-0.01
0.01-0.05
Cat
0.05-0.1
0.1-0.25
0.25-0.5
0.5-2.0
San soi 2.0-5.0
5.0-10.0
Gioi han chay, %
Gioi han
deo,
%
Chi s6
deo,
%
D0s6t
DO
am
tir
nhi6n,
%
KhOi lupng
thS
ticli,
g/cm^
Kh6i lupng
thi
tich
kho,
g/cm'
Ty trpng
HI s6 rOng
DO
r§ng,
%
DO bao hoa,%
Luc dinh don
vj,
kG/cm^
Goc ma sat trong,
dO
HO
s6 nen
liin,
cm^/kG
HO s6
thim, (cm/s)
Lap
2
6.50
5.5
15.0
25.0
31.5
16.0
1.0
-
-
-
-
-
-
20.4
1.84
1.52
2.67
0.75
42.9
72.3
0.06
20°^2'
0.095
1.69x10-'
TM
Thiet
ki
mau de
bi^n
han nuoc
cho viing trpng diem Nam Dinh (Giao ThiSy)
De
tai NCKH cip nha nuoc
KC08 -15/06
-
10
5.
L&p
3:
Cdt
hgt
min
Lop nay nam
dtioi
lop 2 co bl day tuong doi
Ion,
lop co thanh phin la cat
hat min mau xam
xanh,
xam den, xam sang,
kit
cau chat, trang thai bao hoa
niTCTC chiia huu
co.
Lop nay gap
a
cac h6 khoan
HKIO din
HK30, trong lop nay
doi ch§ xen kep
thiu kinh
la set hat bui voi be day tir 0,7m-l,5m.
Kit
qua phan
tich cac tinh chat ca ly cua lop 3 cho gia tri trung binh
duac
trinh bay trong bang
2-4.
Bang
2-4:
Gid tri trung
binh
cdc chi tieu ca ly cua cdc lop dat 3
TT
1
2
3
4
5
6
7
8
9
10
11
12
13
T£n
chi tieu
Thanh phin
h^t
Set <0.005
Bui
0.005- 0.01
0.01-0.05
Cat 0.05-0.1
0.1-0.25
0.25-0.5
0.5-2.0
San soi 2.0-5.0
5.0-10.0
Gioi han chay, %
Gidi han deo, %
Chi so
deo,
%
DO
set
DO 3m
tu
nhiOn,
%
Kh6i lupng
thO
tich,
g/cm^
KhOi lupng the tich
kho,
g/cm^
Ty
trpng
HO
so rSng lan nhat
HO
sd
tSng
nho nhat
Giic
nghi khi khu
NgOc
nghi
Idii
udt
Ldp
3
6.50
22.8
418
26.5
2.0
1.0
2.65
0.993
0.523
33°25'
25°J5-
TM Thi^t
kl
mau 38 biin
tran
nude
cho
viing
trgng
diem Nam
Djnh (Giao Thiiy)
DO
tai NCKH
<Ap
nha
nude
KC08
-15/06 -10
6. Ldp 4:
Sdt
mau xom
hong,
xam ghi trang thdi deo mem den deo chay
Lap nay la lop cuoi cimg tai cac ho khoan trong chieu sau khao sat tir
HK10-HK30.
Lap co thanh phan la dat set mau xam hong, xam ghi, ket cau
kem chat, trang thai deo chay den deo mem doi cho xen kep lop cat mong. Ket
qua phan tich cac tinh chat ca ly ciia lop 4 cho gia tri trung binh
dtrgc
trinh bay
trong bang 2-5.
Bang
2-5:
Gid tri trung
binh
cdc chi
tieu
ca ly
ciia
cdc ldp dat 4
TT
1
2
3
4
5
6
7
8
.9
10
11
12
13
14
15
16
Ten chi tieu
Thanh phin hat
Set <0.005
Bui 0.005- 0.01
0.01-0.05
Cat
0.05-0.1
0.1-0.25
0.25-0.5
0.5-2.0
San soi 2.0-5.0
5.0-10.0
Gioi han chay, %
Gioi han
deo,
%
Chi s6
dec,
%
Dp
set
DO am
tu
nhien,
%
KhOi lupng the tich,
g/cm^
KhOi lupng
thi
tich
Idio,
g/cm^
Ty trpng
HO sO
rOng
DO
rOng, %
DO bao hoa,%
Luc dinh don vi,
kG/cm^
G6c ma sat
trong,
dO
HO sfl
nen
liin,
cm^/kG
Hesflthim,
(cm/s)
Lap
4
30.50
14.6
21.4
13.4
19.1
1.0
1.0
53.9
36.3
17.6
0.91
52.3
1.68
1.11
2.65
1.41
58.3
98.6
0.09
6°30'
0.352
1.05x10"'
TM
Thiet
ki
mlu de bien
Uan nu6c cho viing
trpng
di6m Nam
Dinh (Giao Thiy)
i^
De tai NCKH
cSp
nha
nude KC08 -15/06 -10
7.
Ldp S:
Cdt
pha
n$ng
Lop nay la lap cuoi cimg tai cac ho khoan trong chieu sau khao sat gap tai
cac ho khoan HK1-HK9. Lap co
thanh
phan la cat pha nang mau xam den, xam
hang, ket cau chat, trang thai bao hoa nuac chiia
hilu
ca. Ket qua phan tich cac
tinh chat ca ly
ciia
lop 5 cho gia tri trung binh dugc trinh bay trong bang 2-6.
Bang
2-6:
Gid tri trung
binh
cdc chi
tieu
ca ly
ciia
cdc lap dat 5
TT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TOn
chi tieu
Thanh phan
hat
Set <0.005
Bui 0.005- 0.01
0.01-0.05
Cat
0.05-0.1
0.1-0.25
0.25-0.5
0.5-2.0
San soi 2.0-5.0
5.0-10.0
Gioi han chay, %
Gioi han
deo,
%
Chi
si
deo,
%
DO set
DO
am tu nhien, %
Khii
lupng the
tich,
g/cm^
KhOi lupng the tich kho,
g/cm^
Ty trpng
He so
rSng
DO
rdng, %
Dp bao hoa,%
Lire
dinh don
vi,
kG/cm^
G6c ma sat trong, dp
HO
s6 nen
liin,
cm^/kG
HO sO
thim, (cm/s)
LirpS
8.5
8.0
9.5
25.5
31.0
16.5
1.0
21.1
1.84
1.52
2.67
0.76
43.3
73.9
0.09
19f>36'
0.099
1.2x10"*
TM
Thilt
ke mSu dS biin
tran
nu6c cho vung trong
dilm
Nam
Dinh
(Giao
Thiiy)
10
DO
tai NCKH cap nha
nude
KC08
-15/06 -10
2.2.2.
V^t
liOu
xay dvng
- Dat dap :
tjn
dung dat dao va khai thae tai cac doi
niii
trong tinh.
Cae chi tieu vat ly
DO
im tu nhiOn
W (%):
22
Dung trpng
tyr
nhien
y^
(g/em3)
:2.04
Dung
trpng
kh6
y,
Xg/cni3):1.67
TS'
trpng A (g/cm3): 2.67
He so
rOng
e:
0.56
Dp
rOng
n (%): 37.37
D6
bao hoa G (%): 98.44
Gidi han chay WT (%) :36.88
Gidi han
deo Wp(%):22.41
Chi s6 deo Wn: 14.47
Dp set
B:
-0,03
Goc ma sat trong
p
(dp):
17.12
Luc dinh don vi
C(kG/cin2):
0,21
He so thim
k^
2,48.10-6
cm/s
TM Thiet ke
mlu
de
bien tran
nude cho viing
trpng
diem Nam
Djnh
(Giao Thuy) 11
DO
tai NCKH cap
nhi
nude KC08
-15/06 -10
Chirong
3
GL\I
PHAP KY THUAT NANG
CAP
DE
Vdi tuyen de
biin
hien tai
tihom
nghien eim de xuat giai phap cong nghe vdi de
biin
Giao Thuy-Nam Dinh
la
mai dO phia
biin
vin dung giai phap ke truyen thong
kit hop neo
giu
tam lat mdi. Vdi mdi phia
ding sir
dung v6 bpe dat c6 phu gia
CONSOLID, chiiu day v6 bpc la 20 cm.
3.1.
CAC
CHI
TIEU THIET
Ki.
- cip cong trinh : Cip
III (Theo
TCXD VN 285-2002 khi
hiyin
de
bao ve dan so 200.000 nguai)
- He so an toan cho phep :[K] = 1,15
- Muc nude trieu thiet ke P = 5%
- Muc nuac dang thiet ke : P = 20%
- Cao trinh dinh de thilt kl chong gio bao cap
10,
van
toe
gio u =
28,4m/s;
- Ket cau bao ve mai dam bao chong gio bao cap 12, u =
36,9m/s
3.2.
TINH TOAN XAC BpjH
CAO TRINH
BINH
BE
Theo 14TCN-130-2002 Cao ttuih dinh de
biin
dupe xae dinh theo cong
thii:c:
VM = Zp + H„d +
H,,
+ a (3-1)
Trong do:
Zp:
Muc
nude biin
tinh toan.
H„d:
Cliieu
cao nude dang do bao.
Hsi:
Chieu cao song leo.
a = 0,3m: dp cao an toan.
1 Xac djnh
mirc
nude bien tinh
toin.
u.
Tinh todn muc
nude
triiu thiit ki theo 14TCN-130-2002:
Muc
nude
triiu tinh toan la muc
nude
tinh toan theo tan suat bao
dim
tai vi tri
cOng
ttinh. Theo 14TCN-130-2002 thi tin suit thilt kl P=5%. Muc
nude
img vol
P=5%
dupe tinh toan xac dinh tren ca sd phan tich tin suit dam bao muc nude
biin
eao nhit nam tai vi tri
cOng
trinh.
Kit
qua tinh toan tin suit
\j
luan muc nuac tram Hdn Dau
(phiic lye
1)
la:
+2,1
Im.
Quy dai tir muc nude P=5%
(+2,1 Im)
cua tram Hon Dau cho khu vuc du an
dugc tinh toan nhu sau:
Zi%
=
+2,11
x
KTGT
=
+2,11
x
0,95 = +2,0 m.
TM
Thiet
k^
n^u
de bien han nuoc cho
vOng
trgng diem Nam Dinh
(Giao
Thuy)
12
De
tai
NCKH cSp
nha nude
KC08 -15/06 -10
Trong
do:
KTGT
=
0,95:
la
hO sO
triOt giam
triOu
tinh cho khu
v\fc
du an
Nhu vay muc
nude
triiu thilt
kl:
Zs%
=
+2,0m.
2.
Mifc nvdc
dang do bao.
Chieu cao
nude dSng
vimg
biin
Hoing Trudng
dupe x4c
dinh cao dp
nude
dang ling vdi tin suit xuit hien 20%, vdi
dO
cip IV Can cir vao s6
liOu
d bing
C3
-
TCN. Cliieu cao
nude
dang do bao ling vdi tan suit 20%, npi suy xac dinh dugc
Hndp=20%^
1,35 m.
3.
Gio va
di
gid thiet ke:
a.
Toe do
gio:
Theo quy dinh cip gid bao
ciia
Trung
tfim dyt bao
khi tupng thuy van qudc gia,
cap gid bao dugc quy djnh nhu
bang
3-1.
Bdng
3-1:
Phan cap gid bdo
Cap gio
CipO
Cipl
cap
2
Cip
3
Cip
4
cip
5
cip
6
Cip
7
cap
8
Cip
9
cip
10
Cip
11
Cip
12
Cip
13
Cip
14
Cip
15
cip
16
Cip
17
V^n
tic gid (m/s)
0-0,2
0,3-1,5
1,6-3,3
3,4-5,4
5,5-7,9
8-10,7
10,8-13,8
13,9-17,1
17,2-20,7
20,8-24,4
24,5-28,4
28,5-32,6
32,7-36,9
37-41,4
41,5-46,1
46,2-50,9
51-56
56-61,2
cip song ( m)
0,1
0,2
0,6
1
2
3
4
5,5
7
9
11,5
14
TM
Thilt ke mlu de
biin
tran nuac cho
vung
trpng
diSm
Nam Dinh (Giao Thuy)
De tai NCKH
cip
nha
nude
KC08
-15/06
- 10
-
Vori
gio cap 10 tinh toan
u
=28,4m/s.
- Vdi gio cap
12
tinh toan u
=36,9m/s.
b.
Da gio:
Theo 14TCN-130-2002,
dii
vdi viing
khOng
e6 ylu tl dia hinh
hjin ehi
dugc tinh
nhu
sau:
D = 5 x
10%„
=
5x10^/28,4
= 176000 m = 176 km.
Tuy nhien khi da gid
Idn
hon 100km,
tie
dp gid tinh toan cin phai xae dinh c6
xet
din sir
phan bl
tie
dp gid theo
khOng
gian va pham vi da gid hieu qua la
D=100km. Vi
v|y
chpn da gid tinh toan la D=100km.
4 Tinh
toin
sdng tir gid thilt ke:
Phuong phap tinh toan sau day ciia Bretscheider dupe dua ra dua tren gia thiet
la sdng sinh ra do gio trong khu vuc trong dieu kiOn bao
tiiiet
ke. DiOu
nay
dung vdi
cac
do
nim trong khu vuc chiu anh hudng
trite
tiep trOn hudng gid thoi.
o.
Chiiu cao sdng Hs:
gH.
i =
0,283
taiih
0,53'
4^
0,0125
tanh
b.
Chu
Jtp Xnh
sdng Tp:
zT
.2-^
=
2;r.l,2tanh
0,83
gh
(3-2)
c Chiiu dai sdng trudc de: Ls
g.Tp'
,. 2n A
£j = .^-^.tanh
is
(3-3)
(3-4)
2K
Trong dd:
Hs - chiiu eao sdng tmh
toan
(m)
Tp - chu ky dinh sdng tinh toan (sec)
D - da gid thilt ke (m)
h - dd sau nude trung binh cua khu vuc ngay tai chan cong trinh (m).
h = 1,7 + 1,35 -
(-0,5)
= 3,55m. (cao dp tu nhien ngay tai chan c5ng
trmh, vi tri
sSu
nhat - 0,50m)
TM
Thiet
ke
mlu de
bita Iran nu6c cho vung
trpng
diem Nam
Djnh
(Giao
Thiy) 14
De tai NCKH cap nha nude KC08
-15/06 -10
u - van
toe
gid thiet ke (m/s).
Thay vao (2-2), (2-3) & (2-4) Tir dd tinh dugc:
Hs;
Tp; Ls theo eae cap gid
khae
nhau.
d
Chieu cao sdng trung
binh
Hstb:
Do muc nude trude cong trinh h =3,55m < 0,5*Ls cho nen sdng tinh toan la
sdng nude ndng. Tinh Hstb theo cong
thilc
( B-9) tiOu ehuin nganh 14 TCN
-
130-
2002
Hstb = —
(3-5)
2,3
5.
Xic d)nh
chiiu cao song leo tren
mii
ki:
* Theo 14TCN-130-2002, trudng hpp
hO s5
mai ke m = 1,5
-:-
5,0
dupe
tinh
toan theo cong thirc:
H,,^Kn^;^jj^^
(3-6)
VI+
m'
Trong dd:
Kn: he so nham va tinh thim cua
mai
nghiOng.
Kw:
hO
sd kinh nghiOm tra theo U/Vg.h
Kp:
he s6 tinh ddi tin suit luy tich cua
ehilu
cao sdng leo. Kp =
1,94.
m: he s6 mai ke
TM Thiet ke
mlu
de biSn
tran
nude cho viing
trpng
diem Nam Dinh (Giao Thuy) 15
DO
tai NCKH cip nha
nude
KC08 -
15/06 -10
6. Ket qua tinh toan cao trinh dinh
dO
Bdng 3-2: Kit qud tinh todn vdi gid bdo
c&p
10
&
cap 12
TT
A
/
//
Th6ngs£ tinh
toan
Xac dinh cao trinh dinh de
S6lUu tinh
todn
Muc ndc
tri6u
trung binh 5%
Dd cao ndc
dang
Cao dd tu nhien
binh quSn
trudc
cOng
trinh
cGt nude
trudc
CI
h
van tdc
gi6
U
Da gio D
Trong long rieng di:
Trong long rieng
nude
bi^n:
He sd
tnai
m
=
cotg a
DO cao an loan
He sd nham cua
mai
nghieng Kn
V/(9,81*h)'HD,5
(Ai ua
Kw)
He sd kinh nghiem Kw
Hs/h
(d^
tra
Kp)
He sd tmh
d6i
tin suit Kp
Ket qud
tinh
todn song vd dinh de
Oii^u
cao sdng Hs
Chu ky sdng Ts
Chieu
dai sdng Ls
Chiiu cao sdng trung
binh
Htb
Chi^u
cao song leo
Hsl
Muc ndc trdc
edng tiinh
(bao gdm Ca song
leo)
Cao trinh dinh de tinh toan
Cao trinh dinh
dS
chon
Don
vi
m
m
m
m
m/s
km
t/m3
t/m3
m
m
s
m
m
m
m
m
m
Tinh todn
vdigi6
ci'plO
2.0
1,35
0.0
3.35
28,40
100,00
2,45
1,03
4,00
0,30
0.90
4,95
1,30
0,15
1,94
1,12
5,12
26,81
0.49
1.99
5,04
5.44
SJO
Tinh
toan
vdi gio
capl2
2,0
1,35
0.0
3,35
36,90
100.00
2,50
1,03
4,00
0,30
0,90
6,44
1,30
0,16
1,94
1,27
5,55
29,49
0,55
2,23
3.3.
TINH TOAN KET CAU LAT MAI
KE
DO dam bao an toan
dO
trong
mda
mua bao chung tdi chpn theo hinh thue
cac
tim be tdng cd
liOn
ket, chay khay bang
Ing bO tOng
cdt thep
hoje
dl be tong tai chd.
1.
Tinh
toan trong
lurgng
can
kifn
phu mai:
a.
Tinh
trpng luffng
cua tam Idt:
Trpng lugng on dinh eiia khdi phu mai de chju tac
dimg eiia
sdng, gio thilt kl
theo c6ng
thurc
Hudson:
TM
Thiet ki
mhx de bien
tran nuac
cho vung
trpng dilm
Nam Dinh (Giao
Thuy)
16
Dl tai NCKH cip nha nude KC08
-15/06 -10
r.Hl
K,{^-\)'Qot
ga
r.
(3-7)
dat.
Trong dd:
G: Trpng lupng
tOi
thieu cua khdi phii mai nghieng (T)
Hs:
Chieu eao sdng thilt kl (m).
Yd
- 2,5: Trgng lugng riOng
eiia
vat
liOu
khoi phii
(T/m')
y„
= 1,03: Trpng lupng riOng eua
nude biln(T/m')
a: Gdc nghieng ciia mai ke cotga = m.
Ki:
Hp
so dn dinh phu thudc hinh dang, dp nham vat lieu va each thiirc ghep
b.
Tinh chiiu day cia tam
Idt:
* Theo theo cong
thirc
Pilarczyk,
K.Wcua
Hd Lan, tinh chieu day cau kien:
H.
^—4'"
(m)
(3-8)
Yi,
O:
hO
sd phu thude vao hinh dang
va each
lap dat
cac cau
kien:
O
= 4
5
=
,
: He sd sdng
vo.
Kit
qua tinh cho d bang sau.
Bang 3-3: Kit qud tinh loan kit ciu
tSm
lat
TT
/
//
Thong
s6
tinh toan
So
liSu
tinh toan
Trpng
lupng
ri8ng
be tong:
Trong
lugng
rieng nuac bien;
H?
so mai m = cotg a
Chieu cao song Hs
Hchu
I^
song Ts
Chieu
d^i
s6ng Ls
Heso^
Hesd^
K^t
qua
tinh
toan trong
lugfng
va
chi8u
day
Trgng
lupng t5m lat
Dffnvi
t/m3
t/m3
m
s
m
Kg
Tinh
toan
vdi gid
cap
10
2,50
1,03
4,00
1,17
5,21
28,03
4
1,23
130
Tinh toan
vdi gid
cip
12
2,50
1,03
4,00
1,33
5,65
30,89
4
1,20
193
TM Thilt kl
mSu
d^
bien tran
nude
cho viing trpng diem Nam Dinh (Giao Thuy)
17
Dl tai NCKH cip nha nude KC08
-15/06 -10
TT
Thdng sd tinh toan
Chiiu diy tim lat d (CT Hi Lan)
Donvj
Cm
Tinh toan
vdi gid
cap
10
24
Tinh
toan
vdi
gid
cap
12
26,4
Tit bang tren, chung tdi kien nghi chpn tim
lat
cd ngam, kich thudc
40cmx40cmx 28cm.
DO tang an toan cho tam
lat
chiing toi diing giai phap neo
giO
cae tam (ehi tiet
xem
hO
so thilt kl).
2.
Tinh toan thiet kl chan khay:
0.
Tinh todn
la'ch
thudc chdn khay.
DO chdng dd ddng chay do sdng tao ra d chan ke
va ap lue
khi sdng nit, chan
khay dupe thilt kl theo dang chan khay sau. Theo 14TCN-130-2002 chiiu sau chan
Idiay
tii (1
*
1,5)
Hs
=
1,1
4-
1,65 m. Chiiu rdng chan khay (Neu xep dng buy
va
do
da
hoc) tir
(2 +
3)
Hs
= 2,2
+
3,3 m.
Vi
vSy
chpn : Dua
mai
ke xudng dudi
mjt
dat tu nhiOn,
kit
eiu chan
Idiay
dupe thilt kl mpt hang dng buy luc lang be tong day
10cm,
dng buy dai 2,0 m
dupe
xOp
kO liOn
nhau. Trong ong buy do da hoc.
b. Tinh todn kich thudc viin dd xip chin khay.
Da xep chan
Idiay
phai dn djnh dudi tac dung
ciia
ddng chay do sdng
t?io
ra d
chan khay.
Vjn
tdc cue
d^i
ciia
ddng chay do sdng tao ra d chan
Ichay
dugc xac dinh
theo cong thiic:
n.H,
r.i
„.
.
4.;r.A
Smh
g
L
Trong dd:
Vo,,^:
Van tdc
circ
dai
ciia
ddng chay (m/s)
Ls,
H:
chiiu dai va chieu cao sdng thiet
kO
(m)
h: dp sau
nude
trude de (m)
g: gia tdc trpng trudng
(m/s')
Tir dd tinh
dupe:
V^
=
0,94 m/s
Tra bang 5.5 -
14TCN-130-2002
dugc trpng lupng tdi thiOu cua vien
dd dO
On djnh
d chan khay
la:
40 kg. Chpn kich thudc vien da cd dudng kinh > 0,25m dl
xIp
chan
khay.
TM
Thiet
ke mlu de bien
tran
nude cho
viing trpng dilm
Nam
Djnh
(Giao Thuy) 18
DO
tai NCKH cip nha nude KC08
-15/06 -10
3.
Thiet
kO
ldp
Ipc:
Giiia ldp phii mai va dit dip, bl tri ldp dem bing da dam 1x2 day
lOem
va
dudi cimg la vai
Ipc
dugc dat
tnfc
tilp len ldp dit dip da dugc dim ky.
* Thiet ke vd chon vdi
Inc:
-
cae
chi tiOu co ly cua dit
nln:
K5=7,3xl0'''
cm/s
Thanh phan hat
ciia
dit:
d|o=0,105mm;
d5o=0,4mm;
d6o=0,45mm;
ds5=0,65mm.
- Ldp bao
vO
gdm
da
dam (1x2)
day
10 cm
va
eiu kiOn
bO
tong day 28em.
Ta cd he sd ddng
diu:
CK
= .^
=-^^
=
4,28;
di„
0,105
^ =
"=^
=
1,625
d«,
0,40
- Chpn
vai Ipc
theo yOu ciu
clian
dit:
- Theo tai
liOu
khao sat dja chit: Cu = 017,5;
dgs/dso
= 2,33 yOu ciu vl kieh
thude
Id Ipc
cila vai khdng vugt qua gia trj quy dinh d bang 2.7 trang 16 14TCN
110-
1996:
Kich thudc
10
Ipc cua
vai
khdng
qua
1,2
d5o=
1,2*0,4
= 0,48mm
Chpn loai vai thich hgp:
Neu diing loai vai loc cd: kich thude
Id Ipe
D = 90 micron <
l,2d5o=0,24
mm
Chiiu day vai t = 1,6mm
HO sd
thim
eiia vai
K= 10 cm/s
- Kilm tra
yOu
ciu thim: He sd thim yeu can cua vai:
•
-
''*.«10>>'^^''^"'°"
* 5xl„
5x0,4
V?y vai
dat yeu ciu ve thim.
- YOu ciu
ky thujt
cua vai
Ipc:
+ Khdi lugng don vi
(ASTM-D3776)
>
200g/m'
+ Dp
bin diit
dpe/ ngang
(ASTM-D4595)
> 15,0/15,0 KN/m
+ Dp dan
diit
dpe/ ngang (ASTM-D3776) > 60/65%
+
D6 bin
chpc thung
(EN-ISO-12236)
> 2400N
+ Kieh thudc
10 Ipc
09o(ASTM-D4751) > 125 micron
+
HO
so thim
dimg(EN-ISO-l
1058):
90
Vmls.
Vay vdi cip phdi hat, dudng kinh d85, he
s6
thim K
ciia
tai lieu khao sat,
lo?ii
vai loc HD200C
ho|e
loai tuong duang thoa man yOu cau
chin
dat, thim nude theo
tieu chuin nganh 14 TCNl 10-1996.
TM
Thiet ki mlu
de bien
ttan
nude cho
viing
h^ng
dita Nam
Djnh
(Giao Thuy) 19
DO
tai NCKH cip nha nude KC08
-15/06 -10
3.4 GIAI PHAP CONG
NGHj:
CUA KC08-15/06-10
1.
Mai phia
biin:
Ngoai trpng lugng vien
da
gia co nhu da tinh toan d tren nhdm
nghien
ciiu
de xuat bl tri them neo nhua dl neo
giil
thOm cho tam
lat
mai dugc an
toan hon. Can
cii
vao he s6 an toan dugc tinh toin bing phan mOm do nhdm nghiOn
cdu ISp
viec b6 tri neo nhu
thi
hien d
ban vO
thilt kl.
2.
Mai phia ddng
De ehdng xdi mai de phia ddng khi nude tran qua dO, ein phai gia cudng vd bpc
than de bang dat cd pha trdn
phy
gia CONSOLID viOc thi edng vd bpe than de tuong
tu nhu thi
edng
vd bpe dat sdt thdng thudng theo phuong phap truyOn thing ehi
lim -j
thong
si
dudi day:
+ Chiiu day vd bpc
thSn dO la
20 cm
+ Ty
1?
phy gia pha trdn la 1%
+ Chpn dit cd bao nhiOu %
la
sdt, quy trinh thi
nghiOm
trong phong
va
hiOn
trudng dugc
thye hipn
theo hudng din thilt kl, quy trinh xir
1^
dit cho de tran nudc-
Tai
liOu
cua
KC08-15/06-10 da
bien
so?n.
3.5.
KitM TRA
6N
Dp«I
MAI DE
PHIA
B6NG
VA PHIA
BIEN
DO
dam bao an toan on dinh cho de chiing tdi chpn vi tri mat cit tinh toan nguy
hilm nhit, dia chit nln
va
dilu
IciOn
dia hinh la bat
Igi.
*.
Phuwng
phap tinh toan.
- Tinh toan On djnh cua mai
die
dugc tinh toin theo phuong phap can bang gidi
han cua timg thdi bing phin
mim
Slope/W cda hang phin mOm dja ky thuat
quie
te
(Geo-Slope,
1998). Chiing tdi da dung phuong phap Bishop dl tmh On djnh trugt
mai,
phuong phap nay thoa man can bing moment.
Phuxmg
trinh tinh toan ciia Bishop dom gian cd
djng:
Z[C.j8.cosa+(M'-w.j3.cosa)/gp
].—
Ew.sina
Trong
dd:
ni„
= cosa +
(sina.tg(p)/K„
C lire
dinh dan vi;
<p
Gdc npi ma sat;
u
ap
luc
nude k£
rong;
w Trpng lugng cua dai dit tinh toin;
P
Chiiu dai
day
dai;
a Gdc giu:a tilp
tuyIn day
mdi dai
va
phuong nim ngang
- So dd tinh dn dinh
ap
dung cho mai dO va ea de phia ddng dugc chpn tinh
TM
Thilt kl mlu
dS biin tran
nude
cho vung
trpng
diem Nam
Dinh (Giao Thuy) 20
DO
tai NCKH cip nha
nude
KC08
-15/06 -10
cho
cae
trudng hpp sau:
Mdi thupng luu:
+ Truong hpp muc nude phia
biin
rut tir thilt kl la +3,35m vO muc
nude
triiu
min.
Mdi
hp
luu:
+ Trudng hpp MN phia
biin
TK la +3,35m.
Myc
nude phia ddng nhd nhit. TrOn
eo de ed doan xe co gidi di
Ifii
(Theo TC thilt kl dudng giao thdng ndng thdn
22TCN-210-92
thi xe d td quy djnh
njng
8T, trong
doan
xe cd 1 xe gia trpng nang
10,4T).
Kit
qua tinh toin
Sn
djnh
mii
de
t^i
cic ni$t
cit nguy hiem nhat
nhir
sau:
K£T
QUA
TfNH
6N
BJNH
MC D28
Mai phia bien:
:1.582
Mai phia dong:
Tit
kit
qua
thih
toan In dinh
mai dO 6
trOn cho thiy: hO sd
6n
dinh
Kiunmiii> [Kl
=1,20.
Vay
dO
lam viec dn djnh
TM Tliilt
kl mlu
de biin tran nude cho
viing trpng dilm
Nam Dinh (Giao
Thiy)
21
DO
tai NCKH cip nha nude KC08
-15/06 -10
CHirONG
IV:
K£T
L0^
& KIEN
NGHI
4.1 KET
LU^:
Nhdm thilt kl da bam sdt tiOu chuin nganh "Hudng din thiit ki di biin 14-
TCN130-2002"
de tinh toan thilt kl. Ddng thdi
kit
hgp vdi
kit
qua nghien cuu ciia
do tai dua mpt s6 giai phap mdi nhim tang on djnh cho
edng trinh
dd la: neo giir eac
tim lat & dimg phu gia tang on dinh cho ldp dit dip bgc phia ngoai than dO.
4.2 KIEN NGHI:
Ung
dyng
ket qua nghien eim
va
img
dyng
cOng
nghp
mdi cua dl tai vao thilt
kO xay
dvmg
dO biin
ViOt Nam. DO nghj
cae
co quan chire nang cho
phOp thii nghipm
tren
mOt do?n
de
biin thye
tl de
hoan thipn
edng
nghp.
TM
Thilt
ke
mlu
de biin trin nude cho viing
h-png
dilm
Nam
Djnh (Giao Thuy) 22