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主要介绍了钱江隧道江南工作井试验段基坑地下连续墙工程。由于钱江隧道江南工作井范围大,开挖深,如何有效控制基坑施工过程中对周围环境的影响成为一个重要的问题。基坑在开挖过程中对周围环境造成的最主要的影响是导致土体变形形成不可逆的侧向位移及沉降。有限元法作为一种有效的模拟及预测基坑开挖过程中周围土体变形的手段,已被广泛应用于实际工程中。针对钱江隧道江南工作井试验段基坑工程模拟的结果可以作为国内同类基坑地下连续墙设计及施工的参考。
Mainly introduces the Qianjiang tunnel Jiangnan work well test section underground pit diaphragm wall project. As the Qianjiang tunnel south of the working well range, deep excavation, how to effectively control the construction process of the impact of the surrounding environment has become an important issue. The most important influence of excavation on the surrounding environment during excavation is the irreversible lateral displacement and settlement caused by soil deformation. Finite element method has been widely used in practical engineering as an effective method to simulate and predict the deformation of soil around the excavation. The results of simulating the foundation pit in the test section of Jiangnan well in Qianjiang tunnel can be used as a reference for the design and construction of the diaphragm wall in similar pit in China.