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TCVN 8481..: 2810
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~u&t.tlanl?in
1
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CQNG T R ~ N H
BE
Dyke work - Demand fbr elem
- TCVN 8481 : 2010
-
Muc iuc
Lbi n6i dhu
1 Pham vi ap dung
2 Tai lieu vign d8n
3 Thuat ngiv va dinh nghia
4 Nguyen t&c chung
5 Thanh phan, khdi lwtrng khio sat dia hinh giai doan bao cao dhu tw (Bao cao
tikn kha thi)
6 Thanh p h h , khoi lwqng khio sat dja hinh giai doan dw an dau tu, - thi& kk ccr
s& (TKCS)
5
7 T h h h phan, kh8i lvqng khio sat dja hinh giai doan TKKT
8 Thanh p h h , kh6i lwqng KSDH giai doan thiet ke b i n vB thi cBng (TKBVTC)
9 Thanh phan, kh8i luqng KSDH giai doan lap bao cao kinh t$ kv thugt
Phu luc A Phan c&p dja hinh trong he th6ng di, di&u Viet Nam (Quy djnh)
Phu Iuc B DQ chinh xac, pham vi wng dung va m$t d$ kh6ng che mat b&ng (Quy dinh) .
.
. ~ ~ U I U C C ~ ~ . ~ ~ ~ ~ ~ ~ ~ X ~ ~ ~ , ~ Q ~ ~ \ ~ ~ . . ~ ~ D ~ ~ . U ~ ~ _ V . ~ ~ ~ B
Phu Iuc D 08 chinh xac va phgm vi ap dung cac loai tq 16 binh dB dja hinh trong cac
cbng trinh thCy lqi (Quy djnh)
Phu Iuc E NQidung va mat dQ d[&m tren cac mat c&t doc, ngang cbng trinh (Quy dinh)
Phu iuc F Cac phwcung phap va do chinh xac xac djnh cao, toa dQ cac ho khoan dao, 35
cac ddm vet lo, dikm 1 ... (Quy dinh)
0
9 Thlv muc tai lieu tham khio 36
- TCVN 8481 : 2010
TCVN 8481 : 2010 dwgc chuydn d6i tiu 14TCN 165: 2006 the0
quy djnh tai khoSn 1 Diku 69 c i a Lust Ti& chu%n va Quy
churin kq thuet va di&rn a k h o h I ~ i d u Nghj djnh sb
7
12712007lNO-CP ngay 011812007 c i a Chinh ph6 quy djnh chi
ti& thi hanh rnQt sb aiku cha Lust Ti6u c h u h va Quy c h u h k
$
i
thu$.
TCVN 8481 : 2010 do Vien Khoa hoc Thiy iqi Viet Narn bi6n
soan, 86 Ndng nghiep va Phat tridn Nbng thdn dk nghi. T8ng
cyc Tidu c h u h Do IlPbng Chbt ivqng th&m dinh, BQ Khoa hoc
va Cbng nghe cdng bb.
- Tieu chuan nay quy dinh thanh phiin, khdi Ivvng c6ng tac khao sat d/a hinh c6ng [tiiih de dtku.
2 Tai lieu vign d i n
TCVN 8478 : 2010, Ccing trinh thug Iqi - Y6u c6u vk thanh phan, kh8i lirwng khao sat @a hinh t m l g
cac giai doan lap du.an va thikt kk;
TCVN 8226 : 2009, Cbng trinh thu);Ipi- Cac quy @inhchi, ve khBo sat rndt c i t va binh d6 @a hhinh
cac t); I$ t u 1/200 &en 1/5000;
S
. -- - ~.~-~ ~ ..., ..
.. ,- -~ ".
--.. -, ~- ... . --
.. . -- --
, 3 Thugt ngiv va djnh nghia
3.4
Cdng trinh dB diku (Dyke work)
1 . 0 6 di&u la he th6ng cBng trinh bao gBrn 66, kt. b i o vi. a&, c6ng qua dP va cdng trinh phu trv.
2. 0 6 s6ng la dB ng5n nwbc lii qua s6ng.
3 . 0 6 bikn la dP ngsn n v b c b i h .
4. 0P c&a sBng la d6 chuyen tikp g i k d& sBng vwi d6 bien hoSc btv bi&n.
5 . 0 6 hao 1 d6 b i o ve cho mot khu vwc ri6ng diet.
8
6 . 0 6 hdi la d6 bao v$ cho mot khu vqc narn 6 phia sBng ciia dB s6ng.
7 . 0 6 chuy6n dung la d6 b i o ve cho mot loai ddi luqng rang biet.
8. K& b6o ve d6 ki cBng trinh xAy d w g n h h chdng sat I6 dk b i o v@d6
- TCVN 8481 : 2010
5
9. Cdng qua dB la c6ng trinh xay dwng qua dB ditng dk cap nwiuc, thoat nwwc ho$c kkt hgp giao th6ng
khu3.
10. Cdng trinh phu trg: 1 c6ng trinh phuc vy vigc quin
8 19 brio vg dB diku, bao gbm: c6ng trinh Iran s y
cd, cot mbc tren dB, cot chi giiui, bikn bao dB diku, cot thujr chi, gikng gi&m ap, tram va thibt bi quan
canh de, kho b5i v$t tw d~ phbng, tru s& hat qurin I?
tric, d ~ k m dB ...
t
3.2
Cbc giai doan l$p dw i n va t h i i t k& (Design stages)
Tuin theo nghi djnh cira chinh phir vk "Quin I9 d y an dhu tw xay dyng cdng trinh" s6 12/2009/NO-CP
ngay 12/02/2009.
33
.
Lwffi khdng chk mijt b h g (Horizontal control network)
La chi cQ db hinh met bang nhw lwffi tam giac, da giac. c8c tuykn dwlvng chuy&n khep kin, giao nhau
qua cac dfkm nlit tao thinh lwwi, he thdng giao hS,i girii tich .... nham xac djnh v/ tri toa dQ (X,Y) cac
dikm khbng chk trong he quy chiku c u thk.
34
.
Lwffi khdng c h i dQ cao (Elevation network)
Chi cac tuykn kh&g chk dQ cao the0 cac dang khep kin, phd hqp, xu& phat S cac mdc cao dS, qudc
tu
gia (hosc dikm g6c gig djnh - khi dwqcchir dhu tw cho ph6p) nhkm xac djnh dS,cao &c dikm dja hinh,
dja vat trong he thdng cao dQ qudc gia (hosc he giri djnh khi chir dhu tw cho phep).
3.5
Lwhi khep kin (Ciose network)
Chi lwwi mat bing hoac d6 cao xu& phAt tw mot dikm gdc, khep vk chinh diem gdc do. Trong do l w 6 i
mat bkng ph&i c6 yku tb phwmg vi b i d trwiuc (do,ho$c tinh ngwgc tiv hai dikm cho trvwc).
36
.
Lww1 phii h y p (Suitabia netwoik)
Chi Iwbi mat bang va 00 cao xu& ph5t tiu dikm hang cao n;iy (hoac 2 dikm hang cao) khep vk dikm
hang cao khac.
37
.
Binh 66, i n db dia hinh (Topographic plan and map)
b
.. Binh d& dia hinh chi b8n vB biku dien, miBu tri dja hinh iy khu vyc nh6 c6 tjr I6 v5 ti3 115000 d6n
11200. 11100 (goi la brin db dia hinh tjr le h ) .
- Ban db dia hinh chi ban vB biku dikn. misu t i dia hinh ty khu vyc l6n c6 tjr le ve tiu 1/10.000 den
1/100.000 (goi la b i n db dia hinh tq le trung binh).
- ,
,
,
; 3.L.I.OQ~000
41h,~ng.,b.~n,.do.~b~tjclee.nh66hh~n goi-la. b&nA.khai.q
3.8
Cbt doc, c&t ngang dja hinh (Topographic profile and cross-section!
-- C&t doc dja hinh chi mat cst the0 doc tim tuykn cBng trinh. nham the hien day (1G sw t&n dAi 14
1
mat dja hinh theo tim tuyen cBng trinh.
- Cbt ngang dia hinh: chi d c m$t cat lap the0 phwcvng vuBng goc hoac hqp rnQlgoc quy djnti v01
phuwng doc the0 tuykn cat doc cBng trinh, nhhm the hien day dli sv bien ddi clia b& mat dia hinh
trong pham vi cBng trinh.
3.9
Hien chinh (Up dating)
La hi& chinh n6i dung dia hinh theo hien trang lhuc Ie.
4 Nguy&nt i c chung
4.1 Tinh ke thiva c d a tai lieu giivacac giai doan
4.1.1 Tai lieu k h i o sat dja hinh cfia giai doan sau phHi k6 thka chon loc thi da kdt quH cfia giai doan
trwwc, tao thanh he th6ng tai lieu dia hinh hoan chinh, nhht quan tiv giai doan bao cao dau tu* (BCDT)
dkn giai doan thidt ke.
-. -- -- -. _..__X_,.__.._ CI____ - -.-
4.1.2 Cac tai lieu dia hinh dwffc do vG p h i i tuen theo cac ti&u chuan, quy pham, quy trinh kj, thuet hien
hanh cGa Nha nwwc va cfia Nganh.
4.2 He cao, tog d@st3 dgng
He cao, toa do siv dung do v& tai lieu dja hinh c6ng trinh d& diku phdi la he cao, toa do clia qudc gia
hien hanh:
- . Lwwi mat bang phrji theo he toa dQ VN2000.
- Lwwi cao do phHi the0 he cao dQ Hon D& HBi Phong. -..,
..~,
- Trwirng hqp d$c bigt 6 mot s d cBng trinh d&:diku hien nay dang ditng he toa do HN72 v a h e cao do
MG Nai Ha Ti&n thi phHi chuyen vk he qu6c gia hien hanh theo cac quy dinh sau:
+ Chuy6n he HN72 vk VN2000 qua chwcrng trinh chuy6n d6i cLa 86 Tai nguy6n va MBi trwwng cho
phep trong toan qu6c GeoTools 1.2.
+ Chuyen he cao 64 the0 cdng thivc sau:
- I6
TCVN 8481 : 2010
4.3 Th6nh ph&n, kh6i Iwqng kh6o sit dla hinh
4.3.1 f3k cwwng khdo s i t dja hinh
Can civ vao nhiem vy c i a c h i d8u tw giao va npi dung y&u c8u cifa dk cwong k h h sat thikt kk t6ng
hgp cita chit nhiem db an, ch6 nhiern dia hinh yhiii lap dk cvong khdo sat dja hinh 6 met trong hai
dang theo y&u c8u cca c h i d&u tw:
- Lgp d& clvong kh5o sat dja hinh doc lap.
- Lap nOi dung k h i o sat dja hinh trong dk cvang khHo s6t thikt kk t6ng quat.
4.3.2 Th5nh phin, kh6i lwffng kh&o s i t dja hinh
4.3.2.1 Thu thep, phin tich, d8nh gii c8c tii lieu dja hinh hien c6
- Cac tai lieu dja hinh hien c6 trwivc khi khHo .sat dja hinh giai doan BCDT v t ~ giai doan thikt kd
cac
gbm:
+ Co s6 toan hoc thanh I.$p tai lieu dja hinh: he cao, toa dQ s& ddyg lap tai lieu dja hinh, rnGi chi&
siv dung.
+ Cac loai b i n db dia hinh ca brin 6 cac 19 le tiu 11100.000. 1150,000, 1125.000, 1/1,0,000, 115000,
112000,111000 va 11500 (nku c6)
+ C i c loai rngt cat dia hinh 6 cac t$ I6 ttu 1110.000 dkn 11100.
+ Cac b6ng mb 6, ghi chi, nhgt kg (nku co).
- Phan tich, danh gia phAi khang djnh npi dung tai lieu dB c6 dwffc s& dung vao giai doan thiet kk v4 .
mivc do siu dung (%) va nhiPng hiin chd c i a tai lieu can b6 sung hoac phHi do lai rnwi.
4.3.2.2 Thanh Iep t6i ii& hinh m6i phuc vy d i n v B c i c giai dogn thiet kk
dja w
.- Do lvivi khdng ch6 mat bang
- Do lw6i khdng chk da cao.
- 0 6 v6 binh db, b&n db dja hinh.
- XQcdinh tim tuy& c6ng trinh
- Do v6 cet doc, ngang theo tuy6n cbng trinh.
- Xac dinh cao to? dd c6c vkt 1 3 vet I$, c6c hd khoan, dao dia chit, dia v$t 19.
1,
4.4 Thanh p h b hd sw khAo s i t dja hinh
4.4.1 HB sw kh6o sat dja hinh c i c giai doan, gbm:
a. Thuybt rninh dia hinh, phei thk hien Bwwc npi dung sau:
- T C V N 8481 : 201 0
t+iJieu..d~.a,,hioh,- -.
- Nhivng quy trinh, quy pham ap dung.
- N6i dung khHo sat dja hinh: kk t h k v a thyc hien.
~ e luan do tin cay cua tai lieu khao sat d/a hinh (cho giai doan thiet kk yeu c&u lap tai lieu dia IhmI!
t
va cac giai doan k e tikp).
b. Tai lieu dia hinh. phHi dwqc tap hqp thanh cac b0 sau:
-- B6 s6 lieu: Th6ng kc, so hoa va ket q u i tinh toan binh sdi cua iuv5i kh6ny ci& ilia, u&ey va Lab u u ,
cac dikm tim tuykn, cao toa do cac hb khoan, h6 dao ...
-. 80 ban v6: Cac loai binh db. b i n db dja hinh, cac loai m$t tit doc, ngang, cac ban sw hoa (khi can
thikt).
4.4.2 Tat ca hb so. dja hinh dku phai dwqc ghi v i o cac !hie( bi lwu triv nhusdia m&m, CD. 6 cir.n!)
dung d& luu va n6p cho c h i d$u tw.
5 T h a n h phan, kh& I w y g khao s a t dja hinh giai d o a n b a o c a o d i u t w ( B a o c a o ti&n k h a
thi)
5.1 Y6u cAu tai lieu dia hinh trong giai doan lgp BCOT, phiii dat y6u cAu sau:
.-..-
- 06 tin cay hinh hoc, dQ dung nap dja hinh, dla vat dwwc bieu dien qua cac loaJ ty le ban do, binh
-. . -- . .- , .... ,
. -
db, mat c&, khang dinh dwvc muc ti&, nhigrn vu c6a dw an.
- Th& hi6n tang quan khu d y an vB twong quan vwi cac khu vwc xung quanh dw an
- Chon dwwc pham vi d y an r6 rang d& lap dwwc quy m6 d y an.
- So bO dwa ra dwqc kdt c i u cac hang muc chinh, sw b6 l y a chon dwoc cdng nghe thdng s6 kv
thuat ... n h i m xac dinh dwqc muc ti&u, nhiem vu d y an.
- Sw b0 xac djnh dwwc khbi lwgng va tang mivc dhu tu.
5.2 Thu thgp, p h h tich, d i n h gia d& kb thira chon loc tai lieu dja hinh dS c o
Giai doan nay c h i yku thu thgp, phan tich, danh gia, nhap tai lieu dja hinh s h co &a cac cw quan nhu
86 Tai nguy6n ~ 6trwbng, cac cw quan tw v&, khHo s i t ...
i
5.2.1 Thu thap t a i l i t o
.,
Nhivng t i i lieu can thidt phHi thu thap bao gbm:
- HB thbng cao, toa 60 x6y dyng n6n tai lieu dla hinh.
- TCVN 8481 : 2010
Cac loai ban ah ccu b&n Cu cac t)i 1 11100.000. 1150.000 - 1110.000. 115000. 112000...(nkuco)
e
- Cac loai mat wt, ghi ch6, sw hoa mi& t i c6 li&n quan dkn d y an.
5.2.2 Ph5n tich the0 2 nQi
dung:
- Ngubn g6c c i a tai lieu.
- Di, tin c8y c6a tai lieu (di, chinh x6c hinh hoc, d dung nap dja hinh dia v$t).
G
5.2.3 Danh gia
Tai lieu dwqc danh gia nhw quy dinh trong 5.2 c6a TCVN 8478 kkt qua khriu danh gia phQidwa ra
kkt luen: ban db ph6i hien chinh va b8n db khdng th& hien chinh dwqc rna p h i i lap rnwi:
5.2.3.1 BQn d6 phai bb sung hign chinh
Tuy thu6c vao rnivc do va )i nghia c6a nhivng bikn d6i d i h ra 6 ngoai thyc dja kk t u sau khi b i n db
dwffc thanh lap hoec hign chinh I&cubi, cimg nhw t&rn quan t r ~ n g vbng vk mat kinh tk va qu6c
c6a
phbng, b i n db dja hinh phii dvvc hign chinh thwbng theo cac chu kq: 5 d&n 6 n5rn viyi ban db
11500 + 115000. 6 + 10 n5rn vivi b5n db tjr I@1110.000, tb 8 d6n 12 n3rn v6i bin ab tjr le 1125.000 va
tiu 10 dkn 15 n8rn vwi bQn db tq Ig 1150.000. BBn canh hign chinh djnh k?. chn phQi hien chinh lien
tuc bQn db cac khu vyc kinh tk quan trong va c6 dQbikn ddi i6n.
- Khi nQidung khdng c6n phir hqp vwi thyc dja & rnttc di, thay ddi dang k& khdng vwqt qua 40% va
nhivng bikn dbi do griy kh6 kh&n trong*vigc s& dung bQn db 66 g i i i quykt cac nhiern vu kinh t6, kp
thuat, khoa hoc thi ph&i hien chinh b6 sung:
+ Ranh giwi qu6c gia c6 thay d6i.
I
+ Nwi xu& hien hoec c6 thay d6i lbn v&:
Cac d r h ddn cv, dja danh, cac c o s& kinh 1 lirn nhw nha may, h&n m6.
6
. Cac tuykn dwbng s&, dwbng 6 td.
Long sBng, hb, dAm. &rig b&g, he th6ng k h h , rnwwng vtr c8c cdng trinh thuq Iqi, dwbng bb
bi&n, brii cgn, cir lao, ccin d i o...
e Cfic vung rwng dht canh lac, d& trbng cay Uu n h .
+ Co nhiku thay d6i trong rnang lwiui diem d5n cw, dvbng sa, thyc ph6. Qnhhwtrng rd ret dkn k h i ndng
djnh hwwng ngoai thwc dja.
5.2.3.2 Ban db phai thi+nh lap m&i khi
- Cw 66 kh6ng chk mat bhng va cao di, cfia b i n d8 khdng bap ttng y8u c$u vk di, chinh xac
Erin db c6 66 bikn d6i i+n 2 40 %
- Edited by Foxit Reader
Copyright(C) by Foxit Software Company,2005-2007
For Evaluation Only. TCVN 8481 : 201 0
- Do v6 b i n d & rnwi tuan nhw quy dinh trong 5.2.3.2 clja 5.2 dbi vwi tai lieu d8 c6 duqc ke thira.
Theo y6u c&u clja chlj d i u tu. v& tai lieu d/a hinti cbng trinh de di&u m a i lap.
MQt $6 n6i dung can do miyi, bb sung:
+ D o v6 binh db mot sb tuykn d6, c6ng trinh bdo ve bb. chinh va quan trong, thi!'ong o tq It? 1!2000
1110.000.
+ Cdt doc. ngang tuyen cbng trinh chinh vbi t); I$ 11200 - 115000, cdt ngang 1 Ie li200
9 - 11500. !n?t dO
c&t ngang tiv 100 - 200mll met c&t.
+ Xac dinh cao, toa dQ mot s6 vi tri dQc trivng c6a tuykn, mot sd dikm k h h g ch6 phuc vu do v6 cac lo*!
binh db, met cdt trkn. 0 6 tin cay, mat 66 the0 Phu luc B va Phu luc C.
5.4 Thanh p h h h6 s o dja h i n h
5.4.1 Tap I . Thuyet rninh dla hinh
Tu8n the0 y6u cau trong 4.4, nhwng trong giai doan Inay chlj y&u 1 k& thiva cac tai lieu cir, do mbi v6.i
8
khdi lwqng rdt it, n6n p h i i trinh bay t i m i the0 nQidung quy djnh ph8n tich va danh gia theo 7.2.
5.4.2 TQp 2. Thdng k6, tang h q p tai lieu dia hinh ca va do mwi b6 sung: the0 quy dinh ctja diem 1 va 2
trong 4:4.1
-.
6 Thimh ph&n,-'kh$ Iwqng
(TKCS)
6.1 Y6u c i u tiii lieu dja hinh c h o giai doan DADT
Tai lieu khdo d t dia hinh ph& th& hien day dir dia hinh, dia vat c6a cac cbng trinh trong pham vi dB.
pharn vi cbng trlnh bdo ve bb., c6ng trinh ngsn nvbc ... d i m bdo cho chir nhi&m db an hoan thanh du~gc
nhivng nhiern vu sau:
- Chon d w c r c v k g va tuy&n b 6 tri cac hang rnyc cbng trinh d6 dieu
- Xac dinh dwqc chinh xac nhiem vu, quy mb d y an, kich thwwc cira cac hang muc cdng trinh chinh
- Xac djnh dwgc khdi lwgng v a tang mbc dhu tiv.
6.2 Lwwi kh6ng c h k m e t bAng
- Hien nay, lw6i khdng ch& m i t bing qudc gia d8 x4y dyng tiv h+ng 0 - hang 3 (QCVN...:2008lBTNMT).
MQt sd tuyen d6 d i do kh6ng chd hang 4 v6i rnQtdQ2 - 2,5 k m l l diem, dcrgc chi c"c dB diku c8c tinh
- TCVN 8481 : 2010
quHn 19. Nhivng tuydn dC nay chi c&n xay dwng tw6i c6p 1, c6p 2 the0 quy djnh 6 Phu luc A Nku lw6i
do hgng 4 Eu he tga d5, HN72 thi phHi chuykn vk he toa dQ qudc gia VN2000.
- Nhivng khu vyc chwa c6 lwwi hang 4, khi xayldt?.ngphHi tuin theo quy djnh sau:
+ Tht cH c6c cbng trinh d& diku c6 dien tich r 10km2 trEu lCn dku phHi x i y dyng lw6i met bhng hang 4
ndi v6i he to+ dQqudc gia VN2000.
+ Nhivng cdng trinh dC diku c6 dien tich v6 < 10kmzchix i y dwng Iw6i g i i i tich.1, dw&ng chuykn c6p I.
giHi tich 2, dwirng chuykn cap 2.
+ Mat dQ di&m khdng chk xern Phu Iuc B.
6.3 Lw6i khbng ch& dQ cao
-, Lwei kh6ng chd d5, cao cw s.5 trong c b c6ng trinh dB diku la lw6i thiiy chuhn hinh hgc hang Ill, IV
Thiiy c h u h k9 thuat phuc vu do vC t3i lieu dja hinh.
- Phan hang lwwi d$ cao phu thuQc vao 2 yku td: dQ phwc tap dja hinh c;in cw vao d5, d5c dia hinh,
16ng sang, dbng chHy..., va chiku d8i tuykn giiva hai dikrn hang cao qu6c gia. TiCu chuen phin c6p
xern 6 bing 1 va bHng 2. Khi c6 st?. rnau t h u h phhi Ihy tiCu chuin d5, dai tuydn lam cw s.5.
C6ng trinh dB diku bC t6ng c6t th4p phhi xay dlpng tuyen thiiy c h u b hang 3.
- Pharn,vi wng dung, mat dQva 65, chinh xac chc lw6i 60 cao xem Phu Ivc C.
-
Bang 1 P h i n cap hang t u y h thup c h u h phy thuQc vAo chi& d i i cua t u y h tinh b h g km
O w h g tuy&n c6ng trinh cap hang 1
Dikrn hang cao hwn khep vk 65 krn - 70 krn 16 krn-20 km
dikrn hang cao hwn
Dikrn hang cao hwn kh4p vk -
40 krn 45 krn 9km-15km
dikm nbt
~ i k m khbp vk didm n6t
I_
nbt
-
25 krn - 30 krn 6 km-10km
I
. ~ ,. ..
. .. . . . I .. . . . ...., .... . .
. I
-
Bang 2 P h i n cdp,hang tuykn thity c h u h phy thuQc "Po dQddc'dii hinh: mat q a hinh d8,
DQ d6c dia hinh
Cac cap hang tuybn thuy chuan
i 2 1110.000 1110.000 < i 2 115000 115000 c i
/ Thity chuhn hang 3 x
I
I 0
/ Thiiy chuhn k9 thuat 1 0 I 0 / /
- He thbng dt? di&u gbm cac loai de, cbng trinh nhw quy djnh trong 3.1. Trong tumg loai cbng trinh clvtrc
phlin ra la cdng trinh hi@ co va cdng trinh mffi.
6.4.2 He th6ng di! hien c o
a. Pham vi
Thbng thu?mg d6 hien co thu~ong ciru 66 lhi&
du.oc do lir. chan dk ra liai hen hkt pham vi c$n ngtii811
kk the0 nhigm vu d$t ra dwqc c h i dau t u phe duy$t.
b. Tv I$ do v& binh db
Phu thuoc vao dign tich do v6:
+ Khi dien tich do v& F 210 kmZ: do v& binh db tq I$ 115000, khoing cao d&u h tli. I,0 m: 2.0 m
+ Khi d16ntich do v6 F < 10km2 do binh db 112000 khoing cao d&u h t u 0,5 m I .0 m
- Phu thu5,c d5, phivc tap c i a dja hinh
Khi khu do qua v i n g thi tran, thj xri, thanh ph6 co mat 65, giao t h h g , dan cw dbng diic.. tq lg do v6 lbn
han 1 CAP trinh bay 6 muc tr&n. Vi du: Khi dien tich do vi! F 2 10 km2 khi w vung th/ xli. than11
phb...dlin c u dbng d6c, miit dQ xriy dyng day dac thi t$ lg do v6 la 112000, h = 1.0 m, 2 rn ,
-. Phu thuoc vao cap cdng trinh:
- .. . "
. " ".." "- ~
+ C ~ c8ng trinh tiv IV, V tq I$ do v& tulin t h e ~
P dikm b c i a rnuc 2 6 tri!n
+ Cap cbng trinh dac biet, cap I, 11, Ill tq I$ do v6 lffn han mot cap. Vi du khi F r 10 km2 vffi cBng trinh
c&p I,II do vB tp I$ 112000 h = l , 0 rn
6.4.3 He thang di! mivi lap
a. Pham vi do
C6ng trinh d& cap d$c bii.1. chp I. 11. Ill: tiu tim ra hai b6n tw 200 m - 300m. nghia la bang rang tu,
400 m - 600 m.
- Cdng trinh cap IV. V: tiv tim ra hai b&n tiv 100 m - 150 m, nghia la bling rang tiv 200 m - 300 m.
- Phy thu5,c v2io nhivng ci
& dac bigt c i a ch6 nhigm thikt kk dwqc ch6 d&u tw ph6 duyet.
- Ngoai ra d6i vbi dZ. bi&n : phia bi&n do h&t hanh lang b i o vg d6, nghTa la rong t5i thiku 200 m
b. T$ I$ do v6 binh dB: Nhw quy djnh trong 6.4.2 .
- TCVN 8481 : 2010
6.4.4 Doc c i c tuykn 16t rnai, ke blr, mi, h i n blr sbng hoac bikn
Tg lg do v binh db dja hinh dwwc quy djnh nhw sau:
C
- Tq l$115000; h = 1.0 rn vwi c i c khu vyc cbng trinh khi c6 chiku ngang B r 500 rn
- Tq I+112000; h = 1.0 rn v&i c i c khu vwc c6 200 rn s B c 500 rn.
- Tq le 111000 khi B c 200 rn.
6.4.5 CPc c6ng trinh trin, trong d6 sbng, dB bidn
Cac c6ng trinh tr&n va trong d nhw c6ng trinh ngarn qua 66, c i c civa kh&u,giao thdng, c i c t u y b giao
C
thbng... dwqc vC binh db 5 c i c tq I$ sau:
- Tq I&112000 khi B 2 200 rn.
- Tq re 111000 khi 100 rn s B < 200 rn.
- Tq I&11500 khi B c 100 rn.
6.4.6 C i c mi, v@tlieu xoy dwng
- Phgrn vi do vB dwffc chir nhiern dia chat x i c djnh trCn cac binh dd tq le 115000. 1110000 tdy theo tai
lieu d%do trong khu vyc c6ng trinh. I
- Tq I& binh db cac rn6 vat lieu phu thu& vao yBu chu cha chh nhi&n dja ch& the0 tivng loai vat lieu
x%ydyng. Th6ng thwtrng tq le cac rn6 vat lieu dwqc do bang hoac ting l6n rnct cap so vwi tq le
binh db do cho cB c6ng trinh. Vi dy khi do tq le 115000 cho c6ng trinh thi tq le rn6 vat lieu la 115000
hoac 112000,
6.5 D o v e cbt dgc cdng trinh dB di&u (xern Phu lyc E)
C i t doc dwffc v6 doc the0 tirn cira c6ng trinh d6 diku nhw d6 chinh, dB b6i, kB, rn6 h&n, 1
c
5
. c6ng trinh
trBn va trong de... dwwc v6 theo c i c 19 le sau:
- Tq I&ngang 111000. dlvng 11200 khi0,5 krn sL < 1 krn.
- T$ le ngang 11500, dwng 11200 - 11100 khi L < 0,5 krn
6.6 Do v6 met cbt ngang (xem Phu lyc E)
-
Pharn vi: Chi& rpng cat ngang thwbng do bang 1.5 2 Ian chiku rang cha dB thi& kd dd c6 thd djch
chuy&nv/ tri tirn d6 cho phi^ hqp.
- Pham vi: Chieu rQng c$t ngang thvwng do b i n g chi& rOng ke thikt kk cong them p h h char1 l u
dwbi ke vwgt qua chd sau nhat c i a ibng siing g h ke tiv 5 m - 10 tn.
Met do: trung binh tCr 25 rn - 50 m l 1 rngt cat
.. T$ ie vB: thwwng theo ty le tiv 11100 - 11200
Pham vi: Chieu rQng do bing 2 ihn pharn vi c i a cdng va tdi da b h g chiku r6ng ciia bang hinh db
-- Met db: trung binh 25 m l 1 rngt cat, thvivrlg !a 3 met c&t.
T); le vB: thwwng the0 19 le t u I l l 0 0 - 11200, d6i khi c8ng nh6 co th& vF: tq le 1150
6.7 Xac djnh cao, toq do cac h6 khoan dao, cac vkt 10...
- X ~ dlnh cao, to9 dQcac v6tiir the0 vj tri didu tra, danh ddu ctia chfi nhiern thiy v8n ngoai thyc dja
C
vivi dQ chinh xac lwlri do vF: va thug c h u h kv thu$t.
-- S8 lvgng va vj tri cac h8 khoan dao the0 bHn thi& kk cfia chii nhiem dja chat tr&n cac binh db t)i lii
khac nhau nhw 111.000. 112.000. 115.000, 1/10.000 vwi dQ chinh xbc the0 lwlri do v&'va thiy chuan
-. -
-. - k-whu$L- -
6.8 Thenh p h h ha sw dja hinh
Hb scv dia hinh gBrn 2 p h h chinh: Thuy&t rninh dja hinh va tai lieu dja hinh.
6.8.1 Thuybt rnirih dja hinh, n h w quy djnh trong 4.4, nei dung cy th6 n h w s a u
- Nhivng c8n c k khHo sat dia hinh:
, .
+ Can cO. phap qui, phap ch&.
t Cac qui trinh, qui pharn.
- GiCri thigu vi tri dia I$, hinh cBng trinh.
dja
- Qui mii cBng trinh dHn den y&u c i u nQidung kh8i lwffng khHo sat d!a hinh
- Bien phap k9 thugt tikn h h h do, vF:, tinh, binh sai
-- Phwong phap ki&n tra, nghiem thu tai lieu va kkt Iuan chat Iuffng tai lieu.
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Copyright(C) by Foxit Software Company,2005-2007
For Evaluation Only.
TCVN 8481 : 2010
6.8.2 T i i lieu dla hinh
- Lw6i khbng ch6 met b h g , dQcao.
- C i c loai b i n db, binh db.
- Cac loai m p c&t doc, ngaqg.
- Ghi chlr, so hoa he th6ng lwei k h h g ch& mgt bing, cao dQ.
7 Thinh phan, kh6i Iwffng kh5o sat dja hinh giai ~ O ~ ~ T K K T
7.1 Ydu cau tai lieu dja hinh giai doan thi6t kk kq thu@ (TKKT)
Tai lieu dia hinh p h i i tho6 m6n nhivng y6u c&u sau
- Bidu d i h d&y dif c6c y6u ti5 twwng quan giiva dia hlnh, dja vat c
&
(
i yd.u tb $u thanh c6ng trinh: d&,
ke, rn6 han...). Bi&u di& chinh xac y h tb phi @a hinh nhv: vi tri cQt krn tren d6, s6 hQ d h , t2.n
Iang, x6m, tdn cac dvbng dAy dign cao th6, ha th6, dign thoai... Ten cac dubng giaothbng, dvbng
dAn sinh lien xA, huyen. cac c6ng trinh xsy dlpng, bien bAo, c&a khbu... D i m b i o dQ dung nap va
-
dQtin cgy cifa tai lieu.
- Xac dinh chinh xac vj tri c6c hang rnuc cbng trinh, cac tuy6n so chon, qui rn6 pharn vi dy an
- Xfic dlnh chinh x C k6t c8u cbng trinh, giii phap thi c6ng cdng trinh.
.
j
- Xac dinh twong d6i chinh xac khbi lwgng cbng trinh phwmg an chon 68 tinh t6ng dy toan
- Tgn dung c6 chon loc cfic t$i iigu giai doan BCDT (n6u c6) k6 thiva tai lieu giai doan DADT (thi6t k6
co sb).
- Oirn b i o slp th6ng nh& hg cao, toe dQv&i cac giai doan trw&c.
7.2.1 Mwc do xay dwng lvbi: giai doan nay, chi bd sung xAy dyng lw6i c3p 1, cap 2 va kh6ng ch6 Iw6i
chi ti& phuc vu cho do v6 c6.c loai binh db t)i le I&n, c i c rn$t c&t cifa cac hang rnuc cdng trinh, nbi k&
vtri iwwi hang 4 . GTI. OC1, GT2,OC2 cifa cac giai doan trwirc.
7.2.2 ~ h kh6ng ch6
p
- 68 sung xiiy dyng IwCri c6p I , cap 2 nhw g i i i tich 1 (GTI), dwbng chuy&n chp 1 (DCl), giii tich 2
(GT2), dwbng chuy&n cdp 2 (DC2) theo d c tuydn c6ng trinh can so chon vivi c i c ti& chi sau:
+ Khi dign tich khu do F > IOOha xiiy dlpng lwwi chpl, chp 2.
16
- Edited by Foxit Reader
Copyright(C) by Foxit Software Company,2005-2007
For Evaluation Only.
TCVN 8481 : 2010 I
-- 00 chinh xac, pham vi ivng dung va rncjt do diem nhw quy djnh trong Phu luc B.
7.3 ~ h 6 chk ~ cao
n dB
- Xac dinh cao do cac diem tim tuykn, dikm kkt cdu the0 y6u cau cba chii dau ttr va I.&! c2i!
cdng trinh.
Do thuq chub hang IV cho cac dikm tim cdng trinh d& di&u n6i chung. Ri&ng ddi voi cring triril~
xay dwng bang b & tbng cdtth6p, ph5i do !hi$ chudn hang Ill.
Do thuq c h u h ky thu@ cac dikm vet lh, tram m i y do v6, cac dikm d h m$t c&, cec diem b&n'bAo
cac vi tri gi&g gi5m ap . . .
Do chinh xac, pham vi ti'ng dung va mat do nhtr quy dinh lrong Phjt !LICC
7.4 Binh db p h p n v i c Q ctuy& so c h o n
- Tan dung cac loai binh d d5 do v& giai doan l@pDw an dhu tu,
6 - TKCS. Nku th*i gian do vG qua
han nhw quy dinh thi ph5i bb sung ho@c mbi nhw quy d/nh trong 5.2, 5.3.
do
- Binh db dwffc do v& theo cac tuykn so chon dwqc qui dinh 6 cac t? le sau:
+ Nku B (chieu rong cGa tuyen) > 200m. do v6 tq le 112000: h = 0.5 m .: 1.0 rn.
+ NQU 100 m
- Edited by Foxit Reader
Copyright(C) by Foxit Software Company,2005-2007
For Evaluation Only.
TCVM 8481 :2010
- Mgt dg dikrn cao 64, ngi dung c i t doc, phii tu%nthe0 t3 Ie do v6 va s y bikn d6i dia hinh tuin theo
TCVN 8226.
7.8 Do, vE cac m$t c i t ngang
C b mat cAt ngang do, vB theo phvwng vubng g6b hoac hwbng c6dinh vbi tiykn cet doc v6i qui dinh , -
sau:
- OQrang beng 1.2 c1.5 chiku rQngcfia tuydn cBng trinh tin x%ydwng. .
T3 le do vit tiu 11100 i 11500 tu); the0 chiku d8i tuydn rngt tit vb 66 phiuc tap c h bk rn8t dia hinh,
dja vat tuykn c6ng trinh.
- Mat dg do chc c&t ngang
+ Cac tuydn dB, btr trung binh 50 m l l mat cht.
+ CBc tuy6n kB, rnd h h , cdng qua d&... trung binh 20 c 25 rnll rn$t c&.
.- Mat dQdikrn mia tr6n cat ngang tuan the0 1 le do v6 va 66 bidn d6i dia hinh, cu thk
3
+ T9,le 112000, trung binh 20 - 30 ml 1 dikm rnia; chd dia hinh ddc, c6 bikn qbi dot ngQtthi di&m mia
phrii do dhng cdc vi tri thay d6i, mat UQc6 thk bdn 10 m l 1 dikrn.
+ T); I$ 111000, trung binh 10-20ml 1 diem rnia; ch8 dia hinh thay dBi do day hwn ddn 5 ml 1 didm.
+ T3 I+11500, trung binh 5-10ml1 bikm rnia; ch8 dia hinh thay d6i do d i y hwn &n 2 rnl 1 dikm.
7.9 X i c djnh cao, tog dQcac diem tim tuykn cdng trinh, cac h 6 khoan dao, cac diem vkt It?...
- Cac dikrn tirn tuyen xac djnh the0 do chinh xac vk mat bhng: l w 6 i crip 1 (GT1, OCI), vk cao dQ:
thu); chuen hang IV. Ri&ng tim c8ng trinh b6 tbng cdt thep ph6i dothfiy chuin hang 3.
- CQc diem khoan dao, vkt lic... xac djnh theo dQ chinh xic: vk met bang: lu6i do vit, vk cao do: thuf
chuin k ' thuQt.
$
7.10 Thanh phan h& scv dja hinh g8m 2 @p tai lieu
- -
Tgp 1: Thuyki rni'nh 4a hinh d k j c b d c ' c n h giai doan DADT TKCSdbng phan fich chfi yku v i a
c i c phwwng i n so chon v i cho kdt luan vk diku kien thugn lwi dia hinh cho phwwng an chon cha
thi&t k6.
-- Tap 2: Tai lieu aja hinh gbrn cac loai nhw giai doan DAOT - TKCS song s6 lwqng it hon nhiku, chi
bao gorn 6 chc phwcmg an cy thk.
8 Thanh p h h , k h d i ivffng KSOH giai doan thikt kk bin v&thi c 6 n g (TKBVTC)
8.1 Y6u c8u tai lieu k h i o sat dja hinh
18
- TCVN 0481 : 201 0
dia hinh de phuc vu tinh khdi lwcung thi cdng cdng trinh.
- . Phai ke thiva tai lieu dja hinh ff cac giai doan trwivc
8.2 Xay dwng he thdng m & c theo ddi thi cdng- ~ d thuy cdng
c
- Cac cdng trinh c&p dijc biet, c&p I, phsi x i y dyng he th6ng mdc theo ddi qua trinh thi cBng theo mat
dB, d$ chinh xac iwdi hang 4 (tam giac hang 4 hoac dwffng chuykn hang 4) vk mat bang, thuy
c h d n hang 3 vk cao do. Hinh thivc va kkt c&u m8c c6 ban thikt ke rieng theo yeu cau cu thk
CQc c6ng trini, c$p ti, Ill va IV. V s& d"ng cac mbc khdng chk giai doan trybc h&c h6 suntJ them
tuykn khdng ch8 cAp 1 (GTI. O C I ) phyc vp theo ddi thi cBng cdng trinh & mijt bing. Uy&n cao rj6
hang 4 theo ddi vk dB cao.
8.3 L w v i khdng ch6 m@ bang va 69 cao
Khi xuat hien nhDng khu v y c can do ve bd sung x i y dyng lwdi mat bdng v2 do cao nhlv quy dinh 6.2
va 6.3 trong giai doan TKKT.
8.4 Do vG cac loai b i n h d b
Khi chuykn sang giai doan TKBVTC, cac vj tri cdng trinh ciia phwung an chon d2 xac dinh chinh xac.
Do vay, t)i le binh d6 chi vE? cu th& cho cac vj tri cac cdng trinh can thikt kk BVTC. Moi yeu c i u tuan
theo diku 4.4 va 4.5 cha giai doan TKKT.
-~;5-~o-~-~nh-@b-C~Cm~T~t-~~U-X~Y-~rpmY---------~
T? le thwwng vE? la 11200, 11500 cho cac m6 v$t lieu da, cat, scii.... vffi dien tich nh6 dB xac dinh hoan
toan the0 yeu cdu cita chit nhiem dja ch&t.
8.6 Xac djnh cao, to* dg cac diam tirn tuy&n, phyc h8i va ranh g i v i giai phong mat b i n g
- Giai doan nay chi xac dinh tim tuykn cBng trinh phwung an chon va cac hd khoan, dao bd sung lam
rd them di&u kien dia ch&t tuykn chon, h6 khoan dao m6 VLXD cdn dung.
- M6i diem tim c6 2 di&m phuc hbi kg hi& the0 ten d i h tim, them chiv PHi ( i = 1, 2), v i u : diem tim
Sl. PHISI. PH2S2.
- C6 n h h g cdng trinh dun gian, dun vithi-cdng t y x i y dkng cac di&m phuc h6i do ch6 dau tw
quykt djnh.
- ~acdikm
ranh giffi mijt bdng dwgc xac dinh theo pham vi c6ng trinh do chu nhiem th~et yeu cau
ke
va d i dwqc ph6 duyet. 0 chinh xac xac djnh la cac dikm dwwng chuykn cap 2.
6
- TCVN 8481 : 2010
8.7 Do, vi! c5c met c8t doc, ngang
- Do c8t doc tuykn chon theo cac t$le thvbng tiu 111000 ~11500 theo 6 6 dai va do chinh xac tinh
tu3
kh6i Iwqng cdng trinh tu8n theo y&u c&u cba chd nhiem df, Qn(CNDA) d v q c chti d$u tw ph8 duyet.
- Do c6t ngang theo phvwng vubng g6c hoQc hwwng c6 djnh vwi tim tuydn c6ng trinh. Mat do ,,
thvwng 20 s 25 rnll mat c8t v&i c C tq le 11100 11200, 11500 theo y8u c8u cGa CNOA.
8.8 X i c djnh cao tog dQh6 khoan, G o
Nhv quy djnh trong 7.9 cda giai doan TKKT.
8.9 Thanh phan h b sru dja hinh
Tap 1: ThuyAt minh dja hinh, nhw quy djnh trong 7.10 giai dogn TKKT.
Tap 2: Tai lieu dja hinh:
- Lwivi cao, toa d4 b6 sung theo phwwng an chpn.
- Cac loai binh db tiu IC 11100, 11200 s111000.'
- Cac logi mat c6t cdng trinh theo tuykn c h ~ n .
- Cao, toa 64 iv&i the0 d6i thi cbng, dikm phyc hbi tim tuykn.
- Cao, toa do cac h6 khoan, dao.
I
9 Thanh phhn, khoi Ivqng khio sM dja hinh (KSOH) giai iiogn lap bao cao kinh t6
ky thu+t
, .
9.1 Y6u cau t i i lieu dja hinh
- Theo nghj djnh'1212009lND-CP ngay 12/2/2009 cda chinh phd thi cac c6ng trinh c6 myc dich t6n
giao va c6ng trinh x8y dwng don gi6n, c6 t6ng mivc dhu tw < I 5 tj, dbng (Kh6ng bao gbm tikn siv
d ~ i q 3 ) thi chi I& b i o cao kinh t$ k? thuat x8y d p g c6ng trlnh , tcc 1 thikt kk mot giai doan:
6 8
thikt kk b i n v6 !hi cbng.
Tai i~eu hinh phai dap h g nhivng y8u c&u sau:
dja
+ PhAi co 1 le va do dung nap chi tikt dk xac djnh chinh xac quy m6 cda dw an.
9
+ PhAi thk hien chinh xac va chi tikt va kich thwtvc c3a cac kkt ciu, thbnh p h h cda dw An
+ Oap ivng y8u c$u thi c6ng c6ng trinh
9.2 Phan tich, dhnh gia tai lieu dja hinh dB c6: Theo quy dinh trong 3.2.
nguon tai.lieu . vn
