(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

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

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

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.

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".

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

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

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.

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

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

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

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

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:

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'

-
-
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

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

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

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,
%

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

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

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

: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):

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

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

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

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

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

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:

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 = —

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

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)

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

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

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

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

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
=

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

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'''

=
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:

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

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%

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,
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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 +

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