与已运营车站对接的地铁车站深基坑施工及管理控制

Construction and Management Control of Deep Foundation Pit of Subway Station Connected with Operating Station

以昆明市轨道交通6号线二期工程塘子巷站项目为背景,介绍了在闹市环境下与已运营车站对接的地铁车站深基坑施工技术。提出"总体均衡,局部调整"的开挖方式,即在运营线两侧结构不完全对等的前提下,通过部分调整开挖的顺序和支护方式,达到运营线两侧结构受力的基本对等和平衡,保证了既有线的正常运营和新车站基坑开挖过程中的稳定性。

Based on the Tangzixiang Station project of the second phase of Kunming Rail Transit Line 6, the construction technology of the deep foundation pit of the metro station connected with the operating station in downtown environment is introduced. The excavation method of "overall equilibrium and partial adjustment" is proposed, that is, under the premise that the structures on both sides of the operating line are not completely symmetric, the order of the excavation and the support method are partially adjusted to achieve the symmetry and balance of structural load on both sides of the operating line and to ensure the normal operation of the existing line and the stability of excavation process in the foundation pit of new station.