杭州九沙大道人行通道基坑监测分析

On supervision analysis of foundation pit along pedestrian paths of Jiusha avenue in Hangzhou

结合杭州九沙大道1号人行通道基坑工程实例,介绍了基坑支护方式及基坑监测方案,并对基坑开挖过程中土体深层水平位移、地表沉降、地下水位变化等内容进行了现场监测结果分析,指出钻孔灌注桩结合高压旋喷桩的基坑围护方式保证了基坑支护结构的安全、基坑开挖施工的安全以及周边环境的安全。

Combining with the No. 1 pedestrian path＇ s foundation pit project in Jiusha avenue of Hangzhou, the paper introduces the support scheme and the supervision scheme for the foundation pit, undertakes the analysis of the field supervision results of the horizontal displacement, the ground subsidence, and changes of underground water level in the excavation process of the foundation pit, and points out the combination drilling grouting pile with the high-pressure jet grouting pile can ensure the safety of the support structure of foundation pit, the security of the ex- cavation construction of the foundation pit and the surrounding safety.