(18)
BO
KHOA
HOC
VA
CONG
NGHE
CHUOfNG TRINH
KHCN CAP NHA
NIIOC KC
08/06-10
Dt
TAI:
"Nghien cuu cer sa
khoa hoc va
de xuat cdc giaiphdp
khoa
hQc
cong
ngh^
bao
dam
sir
on
dinli
va
dp
hen
cua
de
hien
hifn
cd trong
trirarng hgrp
song,
trieu cir&ng
tran qua de"
Ma
so:
KC08.15/06-10
THUY^T MINH THI^T
K^
MAU
DE
BIEN
TRAN
NUaC
CHO VUNG
NGHIEN
CLfU
TRpNG
DI^M
BE
B|£N
THACH
KIM-HA
TTNH
Co
quan
chCi
tri:
Tru'ang
Dai hoc
ThCiy
\a\
ChCi
nhiem de
t^i:
GS.TS. Ngo
Tri
Vieng
Ha
noi,
2010
BO KHOA HOC VA CONG NGHE
CHirONG TRJtNH
KHCN CAP NHA
NlTOfC
KC 08/06-10
Bfe
TAI:
"Nghiin citu ca sd
khoa
h^c
va
de
xuat
cdc giaiphdp
khoa hgc cong nghe bao dam
stf 6n dinh
vd dp bin cua de
biin
hi^n
cd trong truing
hfp
sdng,
triiu
cwang
tran qua de"
Ma s6:KC08.15/06-10
THUY^T
MINH
THI^T Kt
MAU
BE
BI£N
TRAN
Nuac
CHO
VONG
NGHIEN
ClhJ
TRQNG
DI^M
BE
B|£N
THACH KIM-HA
TTNH
CHU NHIEM DE
TAI
GS.TS.Ng6 Tri Vieng
BAN CHIJ
NHIEM
CHl/ONG
TRINH
KC.08/06-10
CO QUAN CHU TM
Tniong Dai hoc Thuy Igi
BO
KHOA HOC VA CONG NGI
Ha
ndi,
2010
Bh
tai NCKH cip nha
nude
KC08
-15/06
-10
MUC
LUC:
Chinmgl
2
T6NGQUAT
2
1.1.
NHONG
CAN
Ctr
DE
LAP
THlfil KE
CO
S6
2
1.2. CAC
DOl
Tl/ONG
LAP
THIET
K£
CO
Sd
3
Chir(mg2
4
CAC
TAI
LI$U
DtlNG
TRONG
THI£T
K&
4
2.1
TAI
LIEU
DIA
HINH
4
2.2 TAI LIEU DIA CHAT 4
l)Kli6i
luting
thirc
hi
$n:
4
2) Vat
U?u
xay dung 8
ChinmgS
9
GIAIPHAP
KY THUAT
NANG
CAP
DE 9
3.1.
CAC CHi
TIEU
THIET KE 9
3.2.
TINH
TOAN XAC
DEvlH
CAO TRINH DINH DE 9
1 Xac
djiih
muc
nuac bien
tinh toan 9
2.
Muc nuac dang do bao 10
3.
Gio va da gio
thiet
ke
10
4 Tinh toan song tu gio thiet
ke:
11
5.
Xac dinh chieu cao song
leo
tren
mai
ke:
12
6.
Kit
qua tinh toan cao
trinh
dinh de 13
3.3.
TINH
TOAN
KET CAU
LAT
MAI KE 13
1.
Tinh toan
tnjng
lugng
c^u
ki?n
phii
mai:
13
2.
Tinh
todn
thiSt
kl
chto
khay:
15
3.
ThiSt
kS
lop
loc:
15
3.4.
KlfiM
TRA
ON
DDffl
MAI
DE
PHtA
DONG
VA
PHIA
BIEN 16
CHU'ONG
IV :
KAT
LU^N
& HEN
NGH}
19
4.1KETLUAN:
19
4.2
KEEN
NGHI:
19
TM
Thiet
ke
mSu
d8
bi^n
tran
nu6c
cho
viing
trpng
di€m
Th^ich
Kim -
H^
Tinh
De tai NCKH cip nha
nude
KC08
-15/06
- 10
Chircmg
1
TONG
QUAN
1.1.
NHCXG
CAN
ctr
Bi
L^P
THIET
KE
CO
S6
1)
Cac van
ban
phap
guv
chinh.
can cii quyet
dinh s6
1562/QD-BKHCN
ngay 2/8/2007 cua Bo
truong Bp
KHCN ve viec to
ehiic
cae
ci
nhan tning
tuyjn
chu tri
dk
tai
thuOc chuong
trinh
"Khoa
hpc
va c6ng nghe phuc
v\i
phong tranh thien tai, bao
v^
moi
trucmg
va sit dung
hop
ly
tai nguyen thien nhien".
can cii
vao
quya djnh
s6
2801/QD
- BKHCN
ngiy 26/11/2007 cila Bp
truong
Bo KHCN
v6
viec
phS
duyet kinh phi
ih
tai
cIp
nh^
nuac "Nghien
eiiu
co sa khoa
hoc va de xuat
cac giii phip
khoa
hpc
e6ng nghe bao dam
s\f
6n
dinh va dp
bto ctia
de bien hien c6 trong truong hop s6ng, trieu cuong
tran
qua
d6".
can cil
vao
hpip
dong
nghi6n eim
khoa hoc va
phit
trien cong
ngh?
ngay 15
thang 12
nSm
2007 giiia ban
chii
nhiem de tai
voi
chu nhiem de muc, don vi khao sat
thu6e
trucmg
Djii
hpc Thuy
Igi
da tien hanh khoan khao sat ngoai hien truong,
lay
miu thi nghiem
cac
chi tieu co ly va
t6ng
hop viet
bao
cao danh gia
hidn
trang de
t^i
khu vuc de
biln
Hoi Th6ng tinh Ha
Tuih.
2) Cac tieu chuan. guv
pham dp
dung.
- Nghi dinh 209/2004/ND-CP ngay 16/12/2004 cua chinh phu
vh
quan ly cac
dir
an dau
tu
xay
dung c6ng trinh.
- Nghi dinh 99/2007/ND-CP ngay 03/06/2007 ciia chinh
phii
vh quan ly chi phi
dau tu
xay
dung cong trinh.
Bang thong
k£
cac
tiSu
chuin, quy
pta^m
sir dung trong thiet
kl
14 TCN 145 - 2005
14 TCN
186-2006
14 TCN 165 : 2006
14 TCN 195 - 2006
14
TCN 171-2006
TCXDVN 285:2002
QPTL.A.6-77
Huong
din
lap
ih
cuong khao sat
thiSt
ke cong trinh thuy
Igi
Thanh
phin,
kh6i
lupng
khao sat
dja hlnh
trong cac giai doan
IJp dii
an va
thifit
ke c6ng trinh Thuy
loi.
Thanh phan, kh6i lupng khao
s4t
dja hlnh c6ng
tiinh
de dieu
Thanh phan,
khdi
lupng khao sat dja chat trong cac giai doan
lap
d\r
an va
thiSt
kg c6ng trinh Thuy
Igi
Thanh
phln,
npi dung lap bao
cao dau
tu,
du an dau
tu va
bao
cao kinh
te,
ky
thujt
cac du an thiiy loi.
Cong trinh Thuy
Ipi
- Cac quy dinh chu
ySu
ve thiet
kS
Quy
pham
phan
cSp d6
TM
ThiSt
ke
mlu de
biln
tran
nirac
cho vung trong diem
Thfich
Kim - Ha
TTnh
DS
tai NCKH
cap
nha
nude
KC08
-15/06 -10
14.TCN.43.85
TCVN-4253-86
TCVN
QPTLC-1-78
14-TCN-130-2002
Duong thi cong e6ng trinh thuy
Igi
quy pham thiet ke
Nen cac cong trinh thuy c6ng
Quy pham thiet ke thi cong va nghiem thu cong tac dat va
cong trinh
bSng
dat
Quy pham tai trpng va
luc
tac dung
len
CTTL
Tieu chuan
thi6t k6
de biin
1.2.
CAC DOITUONG
L^
THIET KE
CO
SO
- Binh do tuyen de
- Mat cat
d6
TM Thi6t k6
mlu de bien tran
nuoc cho vung
trpng
diem
Thach
Kim - Ha
Tinh
D6
tai NCKH
ctp nhi nude
KC08
-15/06 -10
Chn-ong
2
CAC TAI
LIEU
DUNG TRONG THIET KE
2.1
TAI
LIEU DJA HINH.
Tai lieu khao sat dia hinh do ve gom: mat bang, cat ngang tuyen de.
- Tai
USu
khao sat dia hinh khu vuc du an thue hien thang 03/2008.
2.2 TAI LIEU DIA CHAT.
1)
KhSi lu-ong thytc hif
n:
De cd
day
du tai
liSu
dia chat cong trinh phuc
vy
cho de tai
nghiSn
cuu khoa hpc
can tiin hanh khoan khao sat ngoai hien truong va
liy mlu
thi nghiem cac chi tieu co
ly dat trong phong. Don vi khao
sat
thupe truong Dai hpc Thuy loi da
tiln
hanh khoan
va
lay
mlu ngoai
hiSn
trudng vdi cac npi
dimg
nhu sau:
- Van chuyen thiet bi khoan
- Dinh vi khoan:
18 diSm
- Khoan khao sat
18
h6 khoan vdi
tdng
do sau 300m
-
Lay mau
thi nghiem cac chi tieu co ly
19
mau.
Bao
cao
dia
chjt
cong trinh gom co:
+ Thuyet minh dia chit cong trinh
+ So do bo tri ho khoan
+ Hinh tru h6 khoan
+ Mat cit dia chat cong trinh
+ Bang
tdng
hop cae chi tieu ca ly cac lap dat
+-Bang
t6ng
hpp cac chi tieu co ly cac mau dat.
Cong tac chinh ly tai lieu khoan, thi nghiem, viet thuyet minh va lap ho so
DCCT do Trudng Dai hoc Thuy
Ipi
thue hien.
Tii
k6t
qua khoan khao sat dja
chdt
ngoai thue dia va thi nghiem miu trong
phong dia ting khu vuc
nghiSn
cuu trong pham vi chieu sau khoan khao sat tit
tr6n
xuSng
dudi nhu sau:
a) Lip la:
Bit
dip
Dat dip
thinh
phin la dit set pha, mau xam nau, xam ghi, ket cau chat, trang
thai
ntia ciing itn
deo
ciing.
Ldp co
chiSu
day tir 2,40m den 3,50m. Ldp nay
ehii ygu
phan b6 tai cac h6 khoan
HK2,
HK5, HKg,
HKi
1,
HK17.
Kgt
qua phan
tich
cac tinh chit
ca ly cua ldp
1
cho gia tri trung bmh dupe trinh bay trong bang
1.
TM ThiSt kB mhi de biSn
tran nuac
cho vimg
trgng
di&n Th^ch Kim - Ha Tiiih
De tai NCKH cap nha nude KC08
-15/06 -10
Bang I: Gia tri trung binh
cdc
chi tieu ca iy cua
cdc
ldp dat
TT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Ten 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,
%
Gidi han deo,
%
Chi
s6
deo,
%
Do set
D6 am
tu
nhien,
%
Kh6i lupng the tich,
g/cm^
Khdi lupng the tich kho,
g/cm^
Ty trpng
He so rong
Dp rong,
%
D6 bao
hoa,%
Luc dinh dan vi,
kG/cm^
Goc ma sat trong,
dp
Hi
s5
nen
liin,
cm^/kG
H$s5thlm,
(cm/s)
Ldpl
23.0
11.0
19.0
15.0
26.0
4.00
1.00
36.94
24.34
12.89
0.53
31.11
1.85
1.42
2.69
0.90
47.2
91.1
0.204
7O54.
0.042
0.93x10'^
b) Ldp 2: Sat
dSp set
pha, trang thai deo mem
Dit s6t pha mau xam den, xam ghi, ket cau chat vira, trang thai deo mem. Ldp
cd
chi6u
day tir 2,40m
d6n
3,50m. Ldp nay
chil
yen phan bo d tit
ca cac h6
khoan.
TM
Thiit
ke
mlu
d€ bien tran
nuoc
cho
viing trpng
diem*
Thach
Kim
- Ha
Tmh
f
"^;t6i>icKii-« i-f-
D6
tai NCKH cip nha
nude
KC08
-15/06 -10
KSt
qua phan tich cac tinh chat ca ly cua ldp 2 cho gia tri trung binh dupe trinh bay
trong bang 2.
Bang 2: Gia tri trung binh
cdc
chi tieu ca ly
ciia
cdc lap dit
TT
1
2
3
4
5
6
7
8
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
Gidi han chay, %
Gidi han
deo,
%
Chi s6
deo,
%
Dp set
Dp am tu
nhien,
%
Khoi lupng the tich,
g/cm^
Khoi lupng the tich
kho,
g/cm^
Ty trpng
He
s6
rong
Dp
rSng,
%
Dp bao
hoa,%
Luc dinh dan
vi,
kG/cm^
Gdc ma sat
trong,
dp
He s6 nen
liin,
cm^/kG
Hesdthim,
(cm/s)
Ldp
2
26.11
13.71
24.29
12.43
21.14
1.43
0.43
-
50.81
33.26
17.56
0.98
50.46
1.68
1.12
2.60
1.33
56.99
98.51
0.099
6"05'
0.177
1.8x10'
TM Thi6t k8
miu
de bien
tran
nirac cho viing trgng diem Thach Kim - Ha Tiiih
De
tai
NCKH cip nha
nude
KC08
-15/06 -10
c) Ldp 3: Cdt
hgt
vira din hat nha
Day la ldp cu6i cimg trong
chiSu sau
khao sat.
TMnh
phin la
cat
hat vira
dSn
hat
nho,
man xam den, ket cau chat, trang thai bao hoa nude, doi
chd
xen kpp ldp set pha
mdng. Ket qua phan tich
cae thih
chit co ly ciia ldp 3 cho gia tri trung bmh dupe trinh
bay trong bang 3.
Bang 3: Gid
trj
trung binh cdc chi tieu ca ly
ciia
cdc lap dat
TT
1
2
3
4
5
6
T£n
chi tieu
Thanh phin hat
S6t
<0.005
Byi
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
Spi
soi 2.0-5.0
5.0-10.0
Ty
trpng
sntin
Ty
le
khe hd : kho
udt
Lip 3
0.00
0.00
3.00
11.8
54.0
23.2
7.20
0.80
2.66
1.040
0.563
34°30'
26°12'
Ldp la: Dit dip: Dat dap thanh phan la dat
s6t
pha, mau xam nau, xam ghi, ket
ciu
chJit,
trang thai nua cling
dSn
deo ciing. Ldp c6 chieu day tit 2,40m
d8n
3,50m. Ldp nay
chii ySu
phan bo tai cac ho khoan
HK2,
HK5, HKg,
HKn,
HKi7,
HK17.
Ldp 2: Dat dap set pha,
trjng
thai deo
m6m;
Dat set pha
mau xam
den,
xam
ghi,
k8t
can chat vira,
trjng
thai deo
m6m.
Ldp cd chieu day
til
2,40m den
3,50m. Ldp
nay
ehii
y6u
phan
bd
d tat
ea cac
hd khoan.
TM ThiSt kS
mlu
d%
biSn tr^n nir6c cho vung
trong
di6m Th^ch Kim - Ha Tinh
De tai NCKH
cap
nha nude KC08
-15/06 -10
Ldp 3: Cat hat vira den hat nhd: Day la ldp eudi cimg trong chieu sau khao sat.
Thanh phin la cat hat vira
dgn hjt
nhd, mau
xam
den,
kSt cau
chat, trang thai
bao hoa nude, ddi
chd
xen kpp ldp set pha mdng.
- Khi xay dung cong trinh trong khu vuc nay can chu y
hifin
tugmg tham qua
nen, hien
tuong
nude va cat chay
vao
hd mdng.
- Khi xay
dmg
cong trinh cd tai trpng kha
Idn can
chu y din
vipc
xu ly nhimg
vung lop 2,3 va 3a nim gin
bk
mat dit.
- Cin chii
i? xir
ly
n6n
ii tranh
hipn
tugmg xdi ngam khi cd chenh
c6t
nude.
- Doan de khao sat dja chit phin
Idn
nim ddi
di^n tr^rc
tiep vdi bien va
ciia
biSn,
do
vly chju
tac
ddng msuih
ciia sdng
va
thuy trieu. Dat dap than de co
h|
s6 thim
Idn,
luc dinh nhd, dit
nSn
de la
cae
ldp dat yen,
siic
khang eat be, do
do
dl gay
mit dn dinh (nhu sat, tnrpt ) khi cd
bSo
va trieu cudng. Can cd
cac
giai phap gia c6 dit dip
ik
tSng cudng dn dinh
dS
khi cd bao
va
sdng tran qua
m.
2) Vat lieu xay dvng
- Dit dip : tan dung dit dao va khai thae tai cac ddi mil trong tinh.
Cac chi tieu vat ly
Dp im tu nhien W (%): 22
Dung trpng tu nhien
y^
(g/cm3)
:2.04
Dung trpng kho
YI
Xg/cm3):1.67
Ty
trpng A : 2.67
He sd rong
e
: 0.56
D6
rSng n (%): 37.37
Dp bao hoa G (%): 98.44
Gidi han chay
WT
(%) :36.88
Gidi han deo Wp (%) :22.41
Chi sd deo Wn: 14.47
Dp set
B:
-0,03
Gdc ma sat trong
p
(dp):
17.12
Luc dinh dan vi C(kG/cm2): 0,21
TM ThiSt k8
mlu
d6 bi6n
tran nuoc
cho vimg trpng
diem Thach Kim
- Ha TTnh
De
tai
NCKH cip nha
nude
KC08
-15/06 -10
Chu-ong
3
GIAI PHAP KY
THU.J.T
NANG CAP DE
Vdi
tuySn dS
bien
hi$n
tai
nhdm
nghien
ciiu
di xuat giai phap cong nghe vdi de
bi6n
Hoi Thong la mai
dS
phia bien van
diing
giai phap ke
truySn
thdng. Vdi mai phia
ddng su dung vd bpc dit cd phu gia CONSOLID,
chifiu
day vd bpc la 20 cm.
3.1.
CAC
cm
TIEU
TmtT
ME
- cip cong trinh : Cap HI
(TuySn
de bao ve
dan
sd khoang 200.000
nguoi-theo
tieu chuin phan cip de A6-77)
-
H6
sd an toan cho phep :[K] = 1,15
-
Mxfc nude triSu thiSt
ke : P = 5%
- Muc
nude
dang
thigt ki
: P = 20%
- Cao trinh dinh de
thilt
ke chong gid bao cip 10,
v?n
tdc gid u =
28,4m/s;
- Ket cau bao ve
mai dam bao
chdng gid bao cap 12, u =
36,9m/s
3.2.
TINH TOAN XAC DEVH
CAO TRINH
BINH
BE
Theo 14TCN-130-2002 Cao trinh dmh de
biSn
dupe
xac
dinh theo
edng
thiic:
VM = Zp + H„d + H»|4-a
(3-1)
Trong dd:
Zp:
Muc nude biin tinh toan.
H^:
Chieu cao nude dang do bao.
Hsi:
Chieu cao sdng leo.
a = 0,3m: dp cao an toan.
1 Xac dinh
myc nude
bien tinh toan.
a.
Tinh toan muc nu&c triiu thih ki theo
14TCN-130-2002:
Muc nude
triSu
tinh toan
la
muc nude tinh toan theo tin suit bao dam tai vi tri
cong trinh. Theo 14TCN-130-2002 thi tin suit thiet ki
P=5%.
Miic
nude ling vdi
P=5%
dupe
tinh toan xac djnh
tr6n
ea sd phan tich tan suat dam bao muc
nude
bien
cao nhat nam
t^i
vi tri edng trinh.
K6t
qua tinh toan tin suit ly
luan
muc nude tram Hon Diu (phuc
luc
1) la:
+2,06m.
Quy ddi tu
mire
nude P=5%
(-H2,06m)
cua tram Hon Diu cho khu vuc du an
dupe tinh
toan
nhu sau:
Z5./.
= +2,06
X KTGT
= +2,06 x 0,92 = +1,85 m.
Trong do:
KXGT
=
0>90:
la
hS
s6 triet giam trieu tinh cho khu vuc du an
TM
ThiSt kg
mlu de
biin
tran
nude
cho
vung trpng di6m ThEwh
Kim - Ha
TTnh
9
DS
tai NCKH
cap
nha nude KC08
-15/06 -10
Nhu vay
m\rc
nude
trieu thiet ke :
Z5./.
=+1,85m.
2.
Mvc
nvdc
dang do
bSo.
Chi6u
cao nude dang viing bien nghien
cihi
dupe xac djnh cao dp nude dang
ling vdi tan suit xuit hien 20%, vdi de cip
IV CSn
cit
vao
sd lieu d bang C3 -TCN.
Chieu cao nude dang do bao img vdi tin suit 20%, npi suy
xac
dinh dupe
Hndp.20%'^U30
m.
3.
Gio va da gid
thilt
ke
a.
Toe
do gio:
Theo quy dinh cip gid bao cua Trung tam
d\f
bao khi tupng
thdy vSn
qudc gia,
cip gid bao
dupe
quy djnh nhu bang 3-1.
Bang 3-1: PhSn dp gid bSo
Capgi6
CipO
Cipl
cip
2
cip
3
cip
4
cip
5
cip
6
cip
7
cip
8
cip
9
cip 10
cip 11
cip
12
Cap
13
cip 14
cip 15
cip 16
cip
17
V^n
toe
gi6
(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
Cap s6ng (
m)
0,1
0,2
0,6
1
2
3
4
5,5
7
9
11,5
14
- Vdi gid
cap 10
tinh toan u
=28,4in/s.
TM
Thiet
k6
mlu
d8
bien tran
nude cho vung
trpng
diem Thsich Kim -
Hi
Tinh
10
De
tai
NCKH
cip nha
nude KC08
-15/06 -10
-
Vdi gid cap
12
tinh toan
u
=36,9m/s.
b.
Da
gio:
Theo 14TCN-130-2002,
ddi vdi
vimg khdng
cd
y6u
td dia
hinh
han chi
dupe
tinh
nhu
sau:
D
=
5 x
lO'/ua
=
5xl0'/28,4
=
176000
m = 176 km.
Tuy nhien
khi da gid
Idn
hon
100km,
tdc dp gid
tuih
toan
can
phai
xac
dinh
cd
xet
din svr
phan
bd toe dp gid
theo khdng gian
va
pham
vi da gid
hi$u
qua la
D=100km.
Vi
vay
chpn
da gid
tinh
toan
la
D=100km.
4 Tinh
toin
sdng
tit gid
thilt
kl:
Phuong phap
tmh
toan
sau day cua
Bretscheider dupe
dua ra dua
tren
gia
thiSt
la sdng
smh ra do gid
trong
khu
vyc
trong dieu
kipn
bao
thiet
ke.
Diiu
nay diing
vdi
cac
de nim
trong
khu
v\ic
ehiu
anh
hudng true
tilp
tren hudng
gid
thdi.
a.
Chiiu
cao
song
Hs:
(gor
gHs
=
0,283
tanh
0,530(i|)-
0,0125
tanh
b.
Chu
kp
dinh song
Tp:
.^ =
2w.
1,2
tanh
0,83
gh
(3-2)
c Chiiu
dai
song
trir&c
dS:
Ls
Ls= .tanh
Ls
(3-3)
(3-4)
2;r
Trong
dd:
Hs
-
chiSu
cao
sdng tinh
toan
(m)
Tp
- chu ky
dinh sdng tinh toan
(sec)
D
- da gid
thilt
kl (m)
h
- dp sau
nude trung binh cua
khu vuc
ngay
tai
chan edng trinh
(m).
h
= 1,7 + 1,35 - 1,8 = 1,25m. (cao
dO
tu
nhien ngay
tai
chan edng trinh,
vj tri sau
nhit
1,80m)
u
-
van
tdc gid
thilt
kl
(m/s).
TM Thiet ki
mlu
d6
bien
trin
nuac
cho vung
trpng diem
TTl^ch
Kim
-
Hi TFnh
11
De tai NCKH
cap
nha
nude
KC08
-15/06 -10
Thay
vao
(2-2), (2-3) & (2-4) Tir dd tinh
dupe:
Hs;
Tp; Ls theo cac cap gid khae nhau.
d,
Chiiu cao sdng trung binh
Hstb:
Do muc nude trude
edng
trinh h =l,25m < 0,5*Ls cho nen sdng tinh toan
la
sdng nude ndng. Tinh Hstb theo cong thite ( B-9) tieu chuin nganh 14 TCN - 130-
2002
Hstb
=
— (3-5)
2,3
5. Xac
d|nh
chieu cao sdng
leo
tren miu
V.i:
* Theo 14TCN-130-2002, trudng hpp
h? si
mai
kfe
m = 1,5
+
5,0 dupe tinh
toan theo
edng
thirc:
Hsl =
^^^S 4H^ibl^
(3-6)
VI+
m^
Trong do:
Kn:
hS
sd nham va
tuih
thim cua mai nghieng.
Kw: he sd kinh
nghifm
tra theo U/Vg.h
Kp:
he sd tinh doi tin suit
luy
tich cua chieu cao sdng leo. Kp = 1,85.
m:
hp
so
mai
ke
TM
Thiet ki
mau de
bien tran
nude cho viing tn?ng diem Th^ch Kim
-
Ha TTnh
12
De tai NCKH cip nha
nude
KC08
-15/06 -10
6. Ket qua tinh toan cao trinh dinh de
Bang 3-2: Kit qua tinh toan vdi gid bao cap 10 & cap 12
TT
A
/
//
Thong
s6
tinh toan
Xac dinh cao trinh dinh
d^
Sd'
Ueu
tinh toan
Muc
nude tri^u uung
bmh 5%
DP cao
nude d&nR
Cao dp
tu
nhi&n binh quin
tru6c
edng tnnh
c6t nu6c
trudc
CT
h
Van tdc fiio
U
Da
sip
D
Trong
luone
rifene
da:
Trong
luong riSng nude
bi^n:
H&
s6
mai m
=
cotg
a
DO cao an toan
Kg
s6
nham
ciia
mil nghi6ng
Kn
V/(9.81*h)'>0,5(d^traKw)
H6
s6'
kinh
nghifim
Kw
Hs/h
(de'
ffa
Kp)
He
so
tinh d6i
t£n sua^t
Kp
Ket qua tinh toan song vd dinh
de
Chi^u
cao song Hs
Chu kv sons
Ts
Qii^u
dii
sons
Ls
Oii^u
cao song trung binh Htb
Qiieu
cao sons
leo HsI
Muc
nude trudc cpns
trinh {bao s6m Ca s6ng leo)
Cao trinh dinh
de
tinh toan
Cao trinh dinh
de
chon
Don vi
m
m
m
m
m/s
km
fm3
t/m3
m
m
s
m
m
m
m
m
m
Tinh toan
v6i
gio
ciplO
1,85
1,30
1.80
1.35
28.40
100.00
2,50
1,03
4,00
0,30
0,55
7.79
1,20
0.18
1.85
0.57
3.81
12.66
0,25
0.52
3,68
3M
4,00
Tinh toan
vdi gio
ci'plZ
1.85
1,30
1,80
1.35
36.90
100.00
2,50
1,03
4,00
0,30
0.55
10,12
1.20
0.21
1.85
0,65
4,09
12.76
0,28
0,56
3.71
4,01
4,00
3.3.
TINH TOAN
K£T
CAU LAT MAI
KE
De dam bao an toan
d€
trong mua mua bao
chiing
toi chpn theo hinh
thde cae
tim be tdng cd lien
kit,
chay khay bing 6ng be tdng cdt thep hoac dd be tdng tai chS.
1.
Tinh toan trpng
lugmg
ciu
kifn phii
mai:
a.
Tinh trpng
luang
c6a tam
Idt:
Trpng lupng 6n djnh
ciia
khdi phu
mai
de chju tac dung cua sdng, gid thilt kl
theo cong thirc Hudson:
^.=
rX
Y,
(3-7)
TM
Thi6t
ke
mlu
de bien tran
nude
cho vimg trong
di§m
Thach Kim
-
Ha
TTnh
13
D6
tai NCKH
cap
nha nude KC08
-15/06 -10
Trong dd:
G: Trpng lupng toi
thilu
cua khdi phu mai nghieng (T)
Hs:
ChiSu
cao sdng thiet ke (m).
Yd =
2,5: Trpng lupng ridng cua
v|t
lieu khdi
phd (T/m')
y„ = 1,03: Trpng lupng ridng
ciia
nude
biln(T/m')
a: Gdc nghieng cua mai ke cotga = m.
K^:
He sd dn dinh phu thupe hinh dang,
d$
nham vat lieu, each
thiie
ghep
d|t.
b.
Tinh
chiiu diy ciia lam
Idt:
* Theo theo cong
thue
Pilarczyk,
K.
Wcua
Ha Lan, tinh chieu day cau
kifn:
d=-
^x
Yt
-£.'•'
(m)
(3-8)
O:
he s6 phu
thuQC
vao hinh
d^g
va
each lap
dat cac cau
kiSn:
0 = 4
%
=
^
:
H8 s6
s6ng
v5
.
K^t
qu^
tinh cho
a
bang sau.
f
Bang
3-3:
Ket qua
tinh
toan ket cau tam idt
TT
/
II
Thong s6 tinh toan
Sd lieu tinh toan
Tn?ng lugng
rieng
be
tong:
Trpng
iugag
rieng
nude
bi^n:
H|
so
mai
m =
cotg a
Chiiu
cao sdng Hs
Chu
I^
sdng Ts
Chi^u
dai
sdng Ls
Hf soO)
H$sd^
Kk
qua tinh toan trgng
lugng
v^
chi^u
day
TfQng lupng tdm lat
Chi^u day tam
lat
d (CT Ha Lan)
Don vi
t/m3
t/m3
m
s
m
Kg
Cm
Tinh toan
vdi gid
caplO
2,50
1,03
4,00
1,17
5,21
28,03
4
1,23
130
24
Tinh toan
vdi
gid
cipl2
2,50
1,03
4,00
1,33
5,65
30,89
4
1,20
193
26,4
Tit bang
trdn,
chiing
tdi
kien nghi chpn tam lat cd ngam,
kich
thude
40cmx40cmx 20cm.
TM Thiet
k^
mlu
de biSn
tran
nude cho viing
trpng
di^m Th^ch Kim - Ha Tmh
14
De tai NCKH cap nha nude KC08
-15/06 -10
2.
Tinh toan thiet
kS
chin khay:
a.
Tinh toan kich
thir&c
chan khay.
De ehdng dd ddng chay do sdng tao ra d chan ke
va ap lire
khi sdng nit, chan
khay dupe thiet kl thep dang chan khay sau. Theo
14TCN-13
0-2002 chieu sau chan
khay tir (1
+
1,5)
Hs =
1,1
^-1,65
m. Chiiu rpng chan khay
(Nlu xSp
dng buy
va
do da
hpc)tit(2 + 3)Hs =
2,2.^3,3m.
Vi
v|y
chpn : Dua mai
k^
xudng dudi
m^t
dit
tp'
nhien,
kit
ciu chan khay
dupe thiet kl mpt hang dng buy lye
lang
be tdng day 10cm, dng buy dai 1,5 m dupe
xep kl
liin
nhau. Trong dng buy do da hpc.
b. Tinh toon kich
thudc
viin dd xip
chSn
khay.
sa xIp
chan khay phai on djnh dudi tac
dimg eila
ddng chay do sdng tao ra d
chan khay. Van tdc
c\rc
dai
ciia
ddng chay do sdng tao ra d chan khay dupe xac dinh
theo cong
thiic:
lt.H,
"•!•
„.
,
A.7c.h
Smh
g
L
Trong dd:
V,mx:
Van tdc cue dai cua ddng chay (m/s)
L„
Hj:
chiiu dai
va
chiiu cao sdng thilt ke (m)
h: dp
sau
nude trudc
it
(m)
g: gia tdc trpng trudng
(m/s^)
Tir dd
tuih
dupe:
V„ax =
0,94 m/s
Tra bang 5.5 -
14TCN-130-2002 dupe
trong lupng tdi thilu cua vien da dl dn djnh
d chan khay
la:
40 kg. Chpn kich thudc
vi6n
da cd dudng
kuih
> 0,25m dl
xIp
chan
khay.
3.
Thiet ke ldp
Ipc:
Giila
ldp phu mai
va
dit dip, bd tri ldp
ddm
bing da dam 1x2 day
lOem
va
dudi ciing
la
vai
Ipc dupe
dat true
tilp
len ldp dit dip da
dupe
dim ky.
* Thiet ki vd chon vdi loc:
- Cac chi
tidu
ca ly
cda
dit
nin:
Ks=7,3xl0'''
cm/s
Thanh phin hat
eda
dit:
dio=0,105mm;
d5o=0,4iiun;
d6o=0,45nun;
dg5=0,65nim.
- Ldp bao
vS
gdm da dam (1x2) day 10 cm
va
ciu kien be tdng day 28cm.
TM
Thiet
k8
mlu
de bien tran nude
cho
viing
trgng diem Thach
Kim - Ha Tmh 15
Dl tai NCKH cip nha nude KC08
-15/06
- 10
Ta cd he s6 ddng
diu:
Ca = ^
=-5^
=
4,28;
d,,
0,105
_f;5o.^.O,45
"''lo
'
d,,
0,65
-;^ = -^ =
1,625
d«,
0,40
- Chpn vai
Ipc
theo yeu ciu
chSn
dit:
Theo tai lieu khao sat dja chit: Cu = 017,5;
dgs/djo
= 2,33 yeu ciu
vl
kich
thudc
Id Ipc ciia
vdi khdng vupt qua gia trj quy dinh d bang 2.7 trang 16 14TCN
110-
1996:
Kich thudc
Id
Ipc cua via khdng qua 1,2
d5o=
1,2*0,4
= 0,48mm
Chpn
lo?i vai
thich hpp:
NIU
dimg
loji
vai
Ipc
cd: kich thudc
Id Ipc
D = 90 micron <
l,2d5o=0,24
mm
Chiiu day
vai
t =
l,6irun
Hp
sd thim cua vai K= 10 cm/s
-
Kilm
tra
y6u
ciu thim:
H6
sd thim yeu ciu ciia vai:
•-
^«lo>-''5^'-''^'""
'
5.d;„
5i0,4
Vay vai dat
ySu
ciu vl thim.
- Yeu cau ky thuat
eda vai
Ipc:
+
Khdi lupng
don vi(ASTM-D3
776)
>200g/m^
+ Dp
bin
dut dpc/ ngang (ASTM-D4595) > 15,0/15,0 KN/m
+ Dp dan
diit
dpc/ ngang (ASTM-D3776) > 60/65%
+
DO bin
chpc thung
(EN-ISO-12236)
> 2400N
+ Kich thudc
Id Ipc 09o(ASTM-D4751)
> 125 micron
+
Hp
sd thim
diing(EN-ISO-l
1058):
90
W.s.
Vay vdi cip phdi
hat,
dudng kinh d85,
hp
sd thim K ciia tai
lipu
khao sat,
loai
vai
Ipc
HD200C hoac loai tuong duong thoa man yeu cau
chjn
dit, tham
nude
theo
tidu
chuin nganh
14 TCNl
10-1996.
3.4
GIA CUCJNG
V6
BQC THAN
BE
6 PHfA
D6NG
De chdng xdi
mai d6
phia ddng
Idii
nude tran qua de, cin phai gia cudng vd bpc
than de bing dit cd pha trdn phu gia CONSOLID viec thi edng vd hoc than dd tuong
tu nhu thi cong vd bpc dit set thdng thudng theo phuong phap
truyin
thdng chi
luu ^
thdng sd dudi
dfiy:
+ Chiiu
day
vd bpc than de la 20 cm
+
Tjr
le phu gia pha trdn
la
1%
TM
Thiet
kS
mlu
dS
bien
tran nude
cho
vimg trpng diSm Th^ch Kim -
Ha
Tuih 16
Dl tai NCKH cip nha nude
KC08 -15/06 -10
+ Chpn
dat cd bao
nhieu %
la
sdt,
quy
truih
thi
nghipm
trong phong
va
hien
trudng dupe thue
hiSn
theo hudng din thilt kl, quy truth
xir ly dit
cho de tran nudc-
Tai lieu cua KC08-15/06-10
da
bien
so?n.
3.5.
KIEM
TRA
ON
DJNH
MAI
Sfi
PHIA
B6NG
VA
PHIA
BIEN
DI
dam bao
an toan on djnh cho de chiing tdi chpn vj tri
m}t
cit
tinh
toan
nguy
hilm
nhit, dia chit
nIn va dilu ki$n
dja hinh
la
bit
Ipi.
*. Phuong
phap tinh
toin.
- Tinh toan on djnh
cda
mai
die dupe
tinh
toin
theo phuong phap
can
bing gidi
han cua timg thdi bing phin
mim Slope/W
cua hang phin
mim
dja
k^
thu$t
quoc
te
(Geo-Slope,
1998). Chiing
tdi da
dimg phuong phap Bishop
de
tinh
dn
djnh trupt
mai,
phuong
phap nay
thoa
mSn cSn
bing moment.
Phucmg
trinh tinh toin cua Bishop dam
giin
c6 dang:
'EiC
•P.cosa+(w-u.p.cosa)Jg(p].—
Zvf.sina
Trong
dd:
m,,
=
cosa+ (sina.tg(p)/K,[
C luc dinh don
vj;
<p
Gdc
nOi
ma sat;
u
ap lire
nude ke rdng;
w Trpng lupng
cda
dai
dit tinh toan;
P
Chiiu
dai
day dai;
a
Gdc
giOa
tilp
tuyin day
moi
dai
va
phuong nim ngang
- So dd tinh
dn
djnh
ap
dimg
cho mai de
va
co
de phia ddng dupe chpn tinh
cho cac
trudng
hpp
sau:
Mai
thirpng
liru:
+ Trudng hpp muc nude phia bien
nit tit
thilt
kl
la +3,35m
vl
m\ic
nude triiu
min.
Mai
hg
luu:
+ Trudng hap
MN
phia
biin
TK
la
+3,35m.
Muc nude phia
ddng
nhd nhit.
Tr6n
CO
dd cd
doan
xe co
gidi
di
lai
(Theo
TC
thilt
kl
dudng giao thdng ndng thdn
22TCN-210-92
thi xe d td
quy djnh
n&ig
8T, trong doan xe
cd
1 xe gia trpng nang
10,4T).
TM
Thiet
ke
mlu de
bi6n
tran
nude
cho
vCing
U-png
diem Thach Kim
-
Ha
TTnh
17
De tai NCKH cip nha
nude
KC08
-15/06 -10
Ket qua tinh toan on dinh mai
3i tji
cac
m$t
cat nguy hiem nhat
nhir
sau:
KET
QUA
TINH
ON DpOI
MC D28
Mai phia bien:
Mai phia ddng:
Tir
kit
qua tinh toan
6n
dinh mai de d tren cho thay: he sd dn dinh
K„i^i„
> [K]
=1,20.
Vay de lam viec dn dinh.
TM
Thiet
ke
mau
de bien
tran
nude
cho
vimg trpng dilm Th^ch Kim -
Ha
Thih
18
De tai NCKH cip nha nude KC08
-15/06
- 10
CHU'ONG
IV :
KET
LUAN &
KIEN
NGHI
4.1 KET LUAN:
Nhdm thilt kl da
bam
sat tieu chuin nganh "Hudng din thiit ke de biin 14-
TCN130-2002"
dl tinh toan thilt kl. Ddng thdi
kit
hpp vdi
kit
qua
nghifin eiiu
ciia
de tai dua mot sd giai phap mdi nhim
tSng
dn djnh cho cong trinh dd la: diing phu gia
tang dn dinh cho ldp dit dip bpc phia ngoai than de.
4.2 KIEN
NGHJ:
Ung dung ket qua nghien
eihi
va irng dung edng
ngh|
mdi cua de tai
vao
thilt
ke
xay
dvmg
dS biin Vipt
Nam.
DI
nghj cae co quan
ehiie
nang cho
phip thii nghiSm
tren mot doan
dS bidn th\rc
te dl hoan thien edng nghe.
TM
Thiet
k^
mlu
de
bien tran
nude cho viing trpng diem Thach Kim - Ha Tinh 19