季冻区综合管廊近接工程有限元分析

Finite Element Analysis of Close Engineering of Comprehensive Pipe Corridor in Seasonal Frozen Area

综合管廊工程相对于其他工程发展较晚,因此会带来一系列的下穿工程与近接工程,直接影响着工程建设的安全与复杂程度,在季冻土地区土层冬天冻结夏季融化会进一步加剧下穿工程与近接工程的问题。为了研究季冻区城市地下综合管廊的近接工程与下穿工程的相关问题,论文以某一临近双舱综合管廊的深基坑工程为研究对象,对是否存在接近的既有管廊,以及是否为冬季施工两个条件,通过有限元软件建立数值模型,研究不同工况下深基坑在不同开挖深度时的地表沉降情况,为相似工程提供一定的参考依据。

Compared with other projects,the comprehensive pipe corridor project develops late,so it will bring a series of underpass projects and near projects,which directly affects the safety and complexity of the project construction,in the soil layer in winter will further aggravate the problem of underpass engineering and near engineering.In order to study the season of urban underground pipe gallery near engineering and under engineering problems,this paper to a near double cabin comprehensive pipe corridor of deep foundation pit engineering as the research object,for whether near existing pipe corridor,and whether for winter construction conditions,through the finite element software to establish numerical model,study the deep foundation pit under different conditions in different excavation depth,to provide some reference for similar engineering.