岩溶地区基坑工程勘察的重点与难点分析

Analysis of the Points and Difficulties of Foundation Pit Engineering Survey in Karst Areas

阐述岩溶地区基坑勘察的重点与难点,并以广西壮族自治区南宁市五象新区某基坑专项勘察项目为例,从场地岩土工程特性、岩溶发育情况、水文地质条件、参数选取和基坑边坡稳定性评价等方面进行分析,指出应注意基坑周边环境的调查,结合工程实际提出合理的岩土参数。

This paper summarizes the key points and difficulties of foundation pit survey in karst areas.With the example of the special survey project of a foundation pit in Nanning city,Guangxi Zhuang Autonomous Region,the paper analyzes the geotechnical characteristics,karst development,hydrogeological conditions,parameters and stability evaluation of foundation pit slope,and puts forward the attention to investigation of the pit surroundings and reasonable geotechnical parameters.