Study on impact of excavation of deep foundation pits on buried pipelines is an important subject of excavation environmental engineering.
深基坑开挖对周围地下管线影响的研究，是基坑环境工程中的重要课题。
The divisional walls will divide the long strip pit into several small pits that will be excavated alternately to keep the old station stable and safe during deep pit excavation.
为了保证基坑开挖过程中既有车站的安全，用隔墙将新地铁车站长条形基坑分成小基坑间隔开挖。
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