某大型商办项目岩土工程技术研究  

Research on Geotechnical Engineering Technology for a Large Commercial Project

作　　者：徐艾武 Xu Aiwu(Shanghai Marine Geological Survey and Design Co.,Ltd.,Shanghai,China)

机构地区：[1]上海海洋地质勘察设计有限公司,上海

出　　处：《科学技术创新》2023年第15期104-107,共4页Scientific and Technological Innovation

摘　　要：以浦东新区某大型商办项目桩基及基坑工程为例,本文提出了充分的勘察手段。场地部分位于地铁保护区范围内,针对不同受力工况建筑针对性建议桩基方案。该工程基坑深约10 m,建议地下连续墙及钻孔灌注桩排桩围护方案,可有效控制周围土体及围护结构稳定性。针对基坑影响深度范围内存在多层微承压水情况,采用对比孔方式,查明含水层分布情况,与抽水试验结果相吻合。实践证明,本文提出的岩土工程方案安全可行、经济合理。Taking the pile foundation and foundation pit engineering of a large commercial project in Pudong New Area as an example,this article proposes sufficient survey methods.The site is located within the scope of the subway protection zone,and targeted pile foundation schemes are recommended for buildings under different stress conditions.The foundation pit of the project is about 10m deep.It is suggested that the underground diaphragm wall and bored pile row pile enclosure scheme can effectively control the surrounding soil and the stability of the enclosure structural stability.In response to the presence of multiple layers of micro confined water within the depth range affected by the foundation pit,a comparative borehole method was used to identify the distribution of the aquifer,which is consistent with the results of the pumping test.Practice has proven that the geotechnical engineering scheme proposed in this article is safe,feasible,and economically reasonable.

关 键 词：桩基勘探 深基坑 地铁保护区 微承压水 降水 

分 类 号：TU195[建筑科学—建筑理论]