长沙市渔业路及延伸工程深基坑监测分析

Monitoring analysis on deep excavation pit of the Changsha Yuye Road extension project

对长沙渔业路及延伸工程深基坑开挖过程中周边地表沉降、围护桩桩身侧向位移、立柱沉降、围护桩桩顶竖向位移和地下水位变化等监测数据进行分析得到一些重要结论与建议。指出在基坑开挖中应增强围护结构强度,减小对基坑底土体扰动和加强地下水位监测,以便有效控制基坑外地表沉降,减小开挖对周边建筑物的影响,达到安全开挖。

This study analyzed the adjacent ground surface settlements,lateral displacements and settlements of retaining structures,column settlements and groundwater level variations during the excavation process of a deep foundation pit in the Changsha Yuye Road extension project,obtaining some important conclusions and suggestions. Consequently,during excavation of deep foundation pits,the retaining structures strength,the pit bottom strength and the monitoring frequency of groundwater level should be strengthened,to effectively control the adjacent ground surface settlement and reduce the adverse effects on adjacent buildings.