The monitoring plan of retaining structure and surrounding environment during the pit foundation excavation for a complex basement engineering is introduced in this paper.

本文针对地下室工程复杂情况，主要介绍了基坑开挖过程中围护结构及周边环境等监测方案，实测结果与分析。

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Deformation for retaining structure of foundation pit is the important factor for effect on the deformation of foundation pit.

深基坑的支护结构的变形是影响基坑变形的重要因素。

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The diaphragm wall is a stopping soil and water structure which hydraulic excavation retaining uses more. Its construction is the key to the success of deep foundation pit.

地下连续墙是水利工程基坑支护应用较多的挡土、挡水结构，其施工是深基坑支护成功与否的关键。

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