Qhov project no yog oval coj mus muag qhov chaw ncej / qhov siab 40 meters / tag nrho ntev 441 meters / tag nrho ncua 90 meters
1. Lub hauv paus tsim qib ntawm qhov project no yog Class A, thiab cov rotary excavation piles yog siv.
2. Cov kabmob txheej ntawm pawg kawg yog cov huab cua dolomite hauv txheej ≤4≥, tus qauv tus nqi ntawm qhov kawg kawg tsis kam yog tsis tsawg tshaj 5000kPa, txoj kab uas hla ntawm pawg yog d = 800, thiab cov kabmob txheej yog ≥ 0,5m ua.Los yog ≤3≥2 txheej ntawm silty av nplaum, tus qauv tus nqi ntawm qhov kawg kawg tsis kam yog tsis tsawg tshaj li 1500kPa, pawg kab d = 800, thiab qhov zoo pawg ntev yog ≥35m.
3. Khoom siv:
(1) Lub zog ntawm cov pob zeb ntawm cov pob zeb: C30, kev tsim vaj tse ntawm cov dej hauv qab yuav tsum tau ua raws li qhov yuav tsum tau ua ntawm 6.3.26 ~ 6.3.30 ntawm "Technical Specification for Building Pile Foundation" JGJ94 .
Cov av ntawm qhov chaw yog me ntsis corrosive rau lub hauv paus pob zeb ua qauv thiab cov hlau tuav nyob rau hauv lub reinforced pob zeb qauv, thiab kev tsim kho yuav tsum ua raws li "Code for Anti-Corrosion Design of Industrial Buildings" GB50046-2008
Kev ntsuas tiv thaiv corrosion yuav tsum tau ua raws li cov kev cai cuam tshuam hauv Cushion: C15;Pile Cap: C30;Pem hauv ntej nqaj: C30;Kev piav qhia dav dav ntawm kab lus nthuav dav.
(2) steel bar:
HPB300 qib (cim: Φ), fy = 270MPa;HRB400 qib (cim: Φ), fy = 360MPa;HRB500 qib (cim: Φ), fy = 435MPa.
4. Lub thickness ntawm kev tiv thaiv txheej ntawm longitudinal reinforcement ntawm pawg lub cev yog 50 hli, thiab longitudinal reinforcement ntawm pawg lub cev yuav tsum tau mechanically txuas los yog welded.
Kev lees paub Specifications (GB50204) 5.4.5 thiab 5.4.6 cov cai.Lub thickness ntawm cov pob zeb tiv thaiv txheej tau piav qhia hauv "Basic Component Concrete Protective Layer Thickness Table";cov lus piav qhia dav dav ntawm kab lus nthuav dav qauv.
5. Foundation pawg nrhiav pom:
(1) Load test:
a.Txhawm rau txiav txim siab qhov ntsug compressive bearing muaj peev xwm ntawm ib pawg, ib qho kev ntsuas static load yog siv.Tus qauv tus nqi ntawm ntsug qhov kawg kabmob muaj peev xwm ntawm ib pawg yog 4000KN.
b.Raws li cov xwm txheej zoo ib yam (txhua hom pawg), tus naj npawb ntawm kev tshuaj xyuas yuav tsum tsis pub tsawg dua 3, thiab yuav tsum tsis pub tsawg dua 1% ntawm tag nrho cov pawg;thaum tag nrho cov engineering pawg nyob rau hauv 50, nws yuav tsum tsis txhob tsawg tshaj li 2.
c.Cov kev cai tsim nyog ntawm kev xeem yuav tsum ua raws li "Technical Specification for Testing of Building Foundation Pile JGJ 106-2014".
Lub sij hawm xa tuaj: Mar-18-2022