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基坑开挖会对周围建筑物结构稳定性产生影响,使周边建筑物产生纵向和横向的附加位移及塑性区。为了确保周边结构物的安全及运营,科学评估基坑开挖对周边建筑物位移的影响是非常重要的。文章采用Druker-Prager准则,用Midas较好的计算了基坑开挖对周围建筑物位移的影响,得出基坑开挖对周边剧院站纵向位移影响一般在-2.00mm左右,在不超过0.15mm范围内上下浮动和基坑开挖产生的塑性区分布范围有限,主要在基坑坡脚部位及岩层层面周围的结论,并丰富了相关工程经验。
Excavation of the foundation pit will affect the stability of the surrounding structures and make the surrounding buildings produce additional displacement and plastic zones both vertically and horizontally. In order to ensure the safety and operation of the surrounding structures, it is very important to scientifically evaluate the impact of excavation on the displacement of surrounding buildings. The article uses the Druker-Prager criterion to calculate the effect of excavation on the displacement of surrounding buildings by using Midas. It is concluded that the influence of excavation on the longitudinal displacement of surrounding theater stations is generally around -2.00mm, mm range and the excavation of the excavation of the plastic zone is limited to a limited scope, mainly in the foot pit slope and formation around the conclusion, and enriched the relevant engineering experience.