TIU CHUN XY DNG VIT NAM

TCXDVN 286 : 2003

ng v p cc - Tiu chun thi cng v nghim thu

Pile driving and static jacking

works - Standart for construction, check and acceptance

TIU CHUN XY DNG VIT NAM

TCXDVN 286 : 2003 Sot xt ln 1 ng v p cc - Tiu chun thi cng v nghim thu Pile driving and static jacking works - Standart for construction, check and acceptance

Download ti Tiu chun xy dng - http://tieuchuanxaydung.com

Website trong ngnh xy dng nn tham kho:

i siu th Sn phm & Vt liu Xy dng XAYDUNG.ORG

Trang thng tin Kin trc & Xy dng Vit Nam KIENTRUC.VN

Ca nha li thp 3AWindow http://cuanhualoithep.com

T vn thit k nh & Thi cng xy dng http://wedo.com.vn

Thng tin u thu - thng bo mi thu http://thongtindauthau.com

Th trng xy dng http://thitruongxaydung.com

Trin lm VietBuild Online http://vietbuild.vn

Xin giy php xy dng

http://giayphepxaydung.com

Kin trc s Vit nam http://kientrucsu.org

p cc b tng http://epcocbetong.net

Sa cha nh, sa vn phng http://suachuanha.com

B XY DNG ___

S : 14/ 2003/ Q-BXD

CNG HO X HI CH NGHA VIT NAM c lp - T do - Hnh phc

_______________________________

H Ni , ngy 05 thng 6 nm 2003

QUYT NH CA B TRNG B XY DNG V vic ban hnh Tiu chun xy dng Vit Nam TCXD VN 286: 2003 '' ng v p cc

- Tiu chun thi cng v nghim thu ''

B TRNG B XY DNG

- Cn c Ngh nh s 36/ 2003/ N - CP ngy 04 / 04 / 2003 ca Chnh Ph quy nh chc nng, nhim v, quyn hn v c cu t chc ca B Xy dng. - Cn c bin bn s 460A/ BB -HKHKT ngy 3 / 4 / 2002 ca Hi ng Khoa hc k thut chuyn ngnh nghim thu tiu chun '' ng v p cc - Tiu chun thi cng v nghim thu ''. - Xt ngh ca V trng V Khoa hc Cng ngh v Vin trng Vin Khoa hc cng ngh Xy dng.

QUYT NH

iu 1 : Ban hnh km theo quyt nh ny 01 Tiu chun Xy dng Vit Nam TCXD VN 286: 2003 '' ng v p cc - Tiu chun thi cng v nghim thu ''

iu 2 : Quyt nh ny c hiu lc sau 15 ngy k t ngy k ban hnh. iu 3 : Cc ng : Chnh Vn phng B, V trng V Khoa hc Cng ngh , Vin trng Vin Khoa hc cng ngh Xy dng v Th trng cc n v c lin quan chu trch nhim thi hnh Quyt nh ny ./. Ni nhn : KT/b trng b xy dng - Nh iu 3 Th trng - Tng Cc TCLCL - Lu VP&V KHCN PGS,TSKH Nguyn Vn Lin ( k)

Li ni u

TCXDVN 286 : 2003 thay th mt phn cho mc 7 TCXD 79 : 1980. TCXDVN 286 : 2003 do Vin Khoa hc Cng ngh Xy dng bin son, V Khoa hc Cng ngh B Xy dng trnh duyt, B trng B Xy dng ban hnh theo Quyt nh s:.....14...ngy: ...05...thng......6.... nm 2003

MC LC

1. Phm vi p dng .......................................................................................................... 4

2. Tiu chun vin dn ..................................................................................................... 4

3. Quy nh chung ............................................................................................................ 4

4. Vt liu cc.................................................................................................................... 6

4.1 Cc b tng ct thp ............................................................................................ 6

4.2 Cc thp .............................................................................................................. 7

5. H cc bng ba ng v ba rung ............................................................................. 8

6. H cc bng phng php p tnh ............................................................................ 16

7. Gim st v nghim thu ............................................................................................. 18

8. An ton lao ng ........................................................................................................ 19

Ph lc A - Nht k h cc ............................................................................................. 20

Ph lc B - H hng cc b tng ct thp khi ng ....................................................... 26

Ph lc C - Xc nh ng sut ng trong cc BTCT khi ng ...................................... 28

Ph lc D - Cu to m cc ........................................................................................... 35

Ph lc E - Biu ghi chi ng cc ............................................................................ 37

TIU CHUN XY DNG VIT NAM TCXDVN 286 : 2003

Sot xt ln 1 ng v p cc - Tiu chun thi cng v nghim thu Pile driving and static jacking works - Standart for construction, check and acceptance

1. Phm vi p dng

Tiu chun thi cng v nghim thu cng tc ng v p cc p dng cho cc cng trnh xy dng thuc lnh vc xy dng, giao thng, thu li, thay th mt phn cho mc 7: Mng cc v tng vy cc vn ca TCXD 79: 1980.

Nhng cng trnh c iu kin a cht cng trnh c bit nh vng c hang cc-t, mi nghing, cng... m cha cp n trong tiu chun ny s c thi cng v nghim thu theo yu cu ca Thit k, hoc do T vn ngh vi s chp thun ca Ch u t.

2. Tiu chun vin dn

TCVN 4453 : 1995: Kt cu b tng v b tng ct thp ton khi - Quy phm thi cng v nghim thu.

TCVN 205: 1998: Mng cc-Tiu chun thit k

TCVN 4091 : 1985 : Nghim thu cc cng trnh xy dng.

3. Quy nh chung

3.1 Cc thut ng v nh ngha

3.1.1 Cc ng l cc c h bng nng lng ng( va p, rung).

3.1.2 Cc p l cc c h bng nng lng tnh, khng gy nn xung lng ln u cc.

3.1.3 chi ca cc ng l ln ca cc di mt nht ba ng v 1 pht lm vic ca ba rung.

3.1.4 Ti trng thit k l gi tr ti trng do Thit k d tnh tc dng ln cc.

3.1.5 Lc p nh nht (Pep) min l lc p do Thit k quy nh m bo ti trng thit k ln cc, thng thng ly bng 150 200% ti trng thit k;

3.1.6 Lc p ln nht (Pep)max l lc p do Thit k quy nh, khng vt qu sc chu ti ca vt liu cc; c tnh ton theo kt qu xuyn tnh, khi khng c kt qu ny th thng ly bng 200 - 300% ti trng thit k.

3.2 Thi cng h cc cn tun theo bn v thit k thi cng, trong bao gm: d liu v b tr cc cng trnh hin c v cng trnh ngm; ng cp in c ch dn su lp t ng dy ti in v bin php bo v chng; danh mc cc my mc, thit b; trnh t v tin thi cng; cc bin php m bo an ton lao ng

v v sinh mi trng; bn v b tr mt bng thi cng k c in nc v cc hng mc tm thi phc v thi cng.

c y s liu cho thi cng mng cc, nht l trong iu kin a cht phc tp, khi cn thit Nh thu phi tin hnh ng , p cc cc th v tin hnh th nghim cc bng ti trng ng hoc ti trng tnh theo cng ca T vn hoc Thit k ra.

3.3 Trc c nh v cc trc mng cn c tin hnh t cc mc chun theo ng quy nh hin hnh. Mc nh v trc thng lm bng cc cc ng, nm cch trc ngoi cng ca mng khng t hn 10 m. Trong bin bn bn giao mc nh v phi c s b tr mc cng to ca chng cng nh cao ca cc mc chun dn t li cao trnh thnh ph hoc quc gia. Vic nh v tng cc trong qu trnh thi cng phi do cc trc c vin c kinh nghim tin hnh di s gim st ca k thut thi cng cc pha Nh thu v trong cc cng trnh quan trng phi c T vn gim st kim tra. chun ca li trc nh v phi thng xuyn c kim tra, c bit khi c mt mc b chuyn dch th cn c kim tra ngay. sai lch ca cc trc so vi thit k khng c vt qu 1cm trn 100 m chiu di tuyn.

3.4 Chuyn ch, bo qun, nng dng cc vo v tr h cc phi tun th cc bin

php chng h hi cc. Khi chuyn ch cc b tng ct thp(BTCT) cng nh khi sp xp xung bi tp kt phi c h con k bng g pha di cc mc cu. Nghim cm vic ln hoc ko cc BTCT bng dy.

3.5 Cng tc chun b

3.5.1 Nh thu cn c vo h s thit k, yu cu ca Ch u t v iu kin mi trng c th lp bin php thi cng cc trong nn lu lm r cc iu sau:

a) cng ngh thi cng ng/ p;

b) thit b d nh chn;

c) k hoch m bo cht lng, trong nu r trnh t h cc da theo iu kin t nn, cch b tr i cc, s lng cc trong i, phng php kim tra thng ng, kim tra mi hn, cch o chi, bin php an ton v m bo v sinh mi trng...;

d) d kin s c v cch x l;

e) tin thi cng....

3.5.2 Trc khi thi cng h cc cn tin hnh cc cng tc chun b sau y:

a) nghin cu iu kin a cht cng trnh v a cht thu vn, chiu dy, th nm v c trng c l ca chng;

b) thm d kh nng c cc chng ngi di t c bin php loi b chng, s c mt ca cng trnh ngm v cng trnh ln cn c bin php phng nga nh hng xu n chng;

c) xem xt iu kin mi trng th ( ting n v chn ng) theo tiu chun mi trng lin quan khi thi cng gn khu dn c v cng trnh c sn;

d) nghim thu mt bng thi cng;

e) lp li trc c nh v cc trc mng v to cc cc cn thi cng trn mt bng;

f) kim tra chng ch xut xng ca cc;

g) kim tra kch thc thc t ca cc;

h) chuyn ch v sp xp cc trn mt bng thi cng;

i) nh du chia on ln thn cc theo chiu di cc;

k) t hp cc on cc trn mt t thnh cy cc theo thit k;

l) t my trc c theo di thng ng ca cc v o chi ca cc.

3.6 Hn ni cc on cc

3.6.1 Ch bt u hn ni cc on cc khi:

- kch thc cc bn m ng vi thit k;

- trc ca on cc c kim tra thng ng theo hai phng vung gc vi nhau;

- b mt u hai on cc ni phi tip xc kht vi nhau.

3.6.2 ng hn mi ni cc phi m bo ng quy nh ca thit k v chu lc, khng c c nhng khuyt tt sau y:

- kch thc ng hn sai lch so vi thit k;

- chiu cao hoc chiu rng ca mi hn khng ng u;

- ng hn khng thng, b mt mi hn b r, khng ngu, qu nhit, c chy loang, ln x, b nt...

3.6.3 Ch c tip tc h cc khi kim tra mi ni hn khng c khuyt tt.

4. Vt liu cc

4.1 Cc b tng ct thp

4.1.1 Cc b tng ct thp c th l cc rng, tit din vnh khuyn ( c ly tm) hoc cc c, tit din a gic u hoc vung ( c bng vn khun thng thng). B tng cc phi m bo mc thit k, cc c nghim thu theo tiu chun TCVN 4453 : 1995

4.1.2 Kim tra cc ti ni sn xut gm cc khu sau y:

a) Vt liu :

- chng ch xut xng ca ct thp, xi mng; kt qu