狭长土岩基坑支护桩受力特点分析  

Analysis of Retaining Piles Characteristics for Long-narrow Type Soil-rock Pit Excavation

作　　者：杨金华[1,2] 夏元友[1] 刘毅[3] 裴尧尧[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]云南交通职业技术学院,昆明650101 [3]江苏省交通规划设计院股份有限公司,南京210005

出　　处：《武汉理工大学学报》2013年第10期96-100,105,共6页Journal of Wuhan University of Technology

摘　　要：地铁站深基坑工程往往具有狭长型的特点,在狭长的土岩组合地层基坑中其支护桩受力有其自身特点。基于武汉某地铁基坑工程的监测及数值模拟,对该类基坑支护桩受力特点进行了详细的分析,对比分析了基坑端头井、标准段在有无钢支撑条件下支护桩的轴力和剪应力分布特点,给出了一些工程建议,对类似工程的设计与施工具有参考价值。The long-narrow excavation often exists in the subway station construction, and the soil-rock combination excavation presents its own characteristics. On the basis of the field test and numerical simulation for a subway station excavation, the characteristics of retaining pile have been specifically researched. The pile axial and shear forces distribution has been discussed and analyzed with and without bracing struts. Useful advices are given for the similar excavation type.

关 键 词：狭长土岩基坑 支护桩 轴力 剪力 钢支撑 数值模拟 

分 类 号：TU472[建筑科学—结构工程]