基坑真实土压力的影响因素分析

Analysis on Influencing Factors of the Actual Earth Pressure of Foundation Pit

土压力的准确分析是确保基坑安全稳定的关键。结合基坑工程的最新研究进展,对真实土压力的诸多影响因素进行了分析和论述,并简要归纳了目前设计施工中对这些影响因素的认识现状。在此基础上,提出了把握真实土压力的一些建议:准确掌握环境岩土信息;加强计算方法、时空耦合效应等理论的研究;建立区域岩土信息管理系统;采用以反分析为基础的动态设计;使用与监测信息密切结合的动态支护技术等。

Accurate earth pressure is the key factor to ensure the safety and stability of foundation pit.Combined with the recent research progress in foundation pit engineering,various influencing factors of the actual earth pressure are analyzed and described,and the awareness of these factors in the current design construction is summarized in this paper.Based on this,this paper also puts forward some suggestions on acquiring the actual earth pressure,such as to master accurate environmental and geotechnical information,strengthen studies on calculation method and space-time coupling theory,establish regional geotechnical information management system,adopt dynamic design based on back analysis,and use dynamic supporting technology closed integrated with monitoring information.