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《Sichuan Building Science》 2017-04
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Rotary digging pile structure design optimization and test analysis

WANG Zhenqiang;WEI Qike;WANG Yongchao;LI Zhineng;Technology Research and Development Center,China Metallurgical Construction Group Co.,Ltd.;  
Because of the traditional rotary digging pile end bearing type exists in the design of pile body material. It has wasting a lot of building material,existing in the construction process of hole collapse caused by the poor quality of pile body,breaking pile,and the problem of too thick pile bottom sediment through optimal design of pile,the rotary digging pile design into "expansion head pile". by setting the "soil stop device"then through the pile into the corrugated tube under the steel bar,it is formed the new rotary digging pile structure,which can effectively solve the rotary digging pile quality common fault,at the same time of bellows under load has carried on the theoretical analysis and experimental verification,for the application of this new type of rotary digging pile structure provides the basis.
【Fund】: 重庆市科技攻关计划项目(cstc2012ggB30002)
【CateGory Index】: TU473.1
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