软土区静压管桩施工增大桩内返土量措施研究  

Study on Measures of Maximum Content Restitution Soil in Soft Soil Ground Area for Static Pressure Pipe Pile

作　　者：李均尧 陈卫文 李明 

机构地区：[1]广州市恒盛建设工程有限公司,广州510030

出　　处：《广东土木与建筑》2012年第4期17-19,共3页Guangdong Architecture Civil Engineering

摘　　要：在软土地区进行管桩施工时,通常会因挤土效应而对周边桩体和环境、建筑物造成影响,目前一般通过合理有效的施工规划和设置防挤沟等外部措施降低其影响。该文主旨在利用管桩空心的特点,经过PDCA循环进行现状调查和原因分析,并对常见的两大原因进行一系列试验和总结,最后通过一些工艺改良和施工措施,增加桩内返土量,从而降低对周边的影响。It is usual to produce influence on surrounding piles and buildings by squeezing effect,especially in the construction of piles in soft soil area.In general,external measures such as construction planning and setting anti-extrusion ditch are used to reduce this effect at present.In this paper,the hollow character of piles is considered and PDCA cycle is used to investigate the present situation and analyze the possiblity reasons.Afterwards,a series of experiments are conducted according to two common main reasons.At last,the influence on surroundings is reduced by improving the technology and taking effective measures which can increase the maximum content restitution of soil in piles.

关 键 词：管桩 返土量 措施 

分 类 号：TU7[建筑科学—建筑技术科学]