桩式托换技术在某车站风雨棚工程中的应用  

Pile Underpinning Applied to Construction of Weather-shelter in Some Railway Station

作　　者：石凯旋[1] 李亮[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《西部探矿工程》2005年第2期11-12,共2页West-China Exploration Engineering

摘　　要：通过对某车站风雨棚下沉事故进行分析,认为其主要原因为雨棚在不同基础型式间产生不均匀沉降。在此基础上,采用人工挖孔桩置换原有基础,将雨棚荷载传至稳定地层。并介绍了桩式托换技术的应用,其具有显著的社会效益和经济效益。By analyzing the accident that weather-shelter fell in some railway station,the main reason is that weather-shelter generates the un-uniform settlement in the different foundation.Based on this,the original foundation is replaced by man-bored pile,while the weather-shelter's load is transferred to stable subgrade. The application of pile underpinning is introduced,which has achieved remarkable social and economic benefits.

关 键 词：桩式托换 不均匀沉降 人工挖孔桩 

分 类 号：TU473.4[建筑科学—结构工程]