浅析明挖隧道实施对紧邻基坑影响

明挖隧道作为城市开发的重要组成部分，与周边地块共同开发的情况日益增多。因此，明挖隧道实施对紧邻基坑影响的分析越来越重要。现结合深圳振海路明挖隧道基坑工程，并采用有限元软件PLAXIS模拟基坑开挖对紧邻基坑的影响分析，对与紧邻基坑的实施距离和已有基坑变形之间的关系开展规律性研究，分析不同基坑间距下基坑实施对紧邻已有基坑的影响，进一步提出了合理且安全的设计与施工建议。其成果对类似工程施工设计具有一定的借鉴意义。

Brief Analysis on Impact of Tunnel Excavation on Adjacent Foundation Pit

As an important part of urban development, the tunnel excavation is increasingly with the joint development of the surrounding lands. Therefore, the analysis on the impact of tunnel excavation on the adjacent foundation pits is increasingly important. Combined with Shenzhen Zhenhai Road Tunnel Excavation Foundation Pit Project, the finite element software PLAXIS is used to simulate the excavation of foundation pit and analyze its impact on the adjacent foundation pits. The relationship between the implementation distance of the adjacent foundation pit and the deformation of foundation pit is studied in regularity. The implementation impact of the foundation pit on the adjacent foundation pits is analyzed in the different intervals of foundation pit. The reasonable and safe design and construction suggestions are further proposed. The results have the certain reference significance for the construction and design of the similar projects.