岩溶强发育区桩基础问题处理分析  

Treatment and Analysis of Pile Foundation Problem in Karst Area with Strong Development

作　　者：朱沙 李君 熊丹阳 李锦华[2] ZHU Sha;LI Jun;XIONG Dan-yang;LI Jin-hua(The Second Engineering Co.Ltd.of China Railway 15th Bureau Group,Shanghai 200070 China;Department of Civil Engineering,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]中铁十五局集团第二工程有限公司,上海200070 [2]华东交通大学土木建筑学院,南昌330013

出　　处：《工程建设与设计》2024年第13期42-46,共5页Construction & Design for Engineering

基　　金：江西省自然科学基金项目(20171BAB206051)。

摘　　要：在岩溶地区桥梁建设过程中,常有因桩基承载力不足、顶板厚度不足导致的桥梁结构失稳、破坏等工程问题,论文通过分析岩溶发育规律及其影响因子来寻找有效防治手段,再以江西宜春某公路桥梁项目为依托,根据地勘资料选择合理的桩基础设计,分析岩溶区桩基础施工要点。In the process of bridge construction in karst area,there are often engineering problems such as instability and destruction of bridge structure due to insufficient bearing capacity of pile foundation and insufficient thickness of roof.This paper seeks effective prevention and control measures by analyzing the law of karst development and its influence factors.Then,based on a highway bridge project in Yichun,Jiangxi Province,according to geological prospecting data,reasonable pile foundation design is selected and key points of pile foundation construction in karst area are analyzed.

关 键 词：岩溶区 桩基础 扩大基础设计 

分 类 号：U445.551[建筑科学—桥梁与隧道工程]