不同地质条件下PHC管桩沉桩问题研究  

Research on the sinking technology of PHC tubular pile under different geological conditions

作　　者：陈平辉 

机构地区：[1]福建省南安市第一建设有限公司,福建泉州362000

出　　处：《福建建筑》2013年第8期78-79,36,共3页Fujian Architecture & Construction

摘　　要：PHC管桩在我国各地区得到了广泛的应用,在不同的地质条件下,PHC管桩的施工工艺略有差别。对PHC管桩在砂性土条件下的引孔以及锤击工艺;PHC管桩在深厚软粘土条件下减少管桩上浮以及挤土效应的工艺;以及PHC管桩在岩溶地质条件下桩底加固与预防断桩措施进行了分析,用以指导管桩施工。PHC tubular pile is widely used around the country,the construction technology of PHC tubular piles under different geological conditions is slightly different.In order to guide the construction of PHC tubular pile,the guide-hole measure and the hammering technique under the sandy soil conditions were analyzed;the measures of reducing the float upward of PHC tubular pile and squeezing effect under thick soft clay were also analyzed;In addition,the measures of pile bottom reinforcement and pile-broken-precaution of PHC tubular under karst geology were introduced.

关 键 词：PHC管桩 沉桩工艺 挤土效应 

分 类 号：TU753.3[建筑科学—建筑技术科学]