【摘要】 随着地下空间的开发和利用,隧道结构将频繁下穿繁华街道及重要建筑物.为保护既有建筑物、管线,控制地表变形,选取合理的施工方案将至关重要.本文结合杭州市某大型地下通道工程实例,应用有限元程序的“生”、“死”单元方法,模拟了隧道开挖施工对地表变形影响的全过程,并对各施工方案进行了比较和论证,为类似工程施工方案、施工方法、注浆加固范围的选择提供了依据.更多还原

【Abstract】 With the development of underground space utilization, tunnel structure will pass down the existing building frequently.Thus,it is very important to choose reasonable construction procedure for protecting overground structure and controlling ground surface deformation.This paper combined with certain actual underground chunnel project in Hangzhou,simulates influence caused by tunnel excavation on ground surface deformation through "Birth" and "Death" method of finite element.Meanwhile the study provides gist for construction procedure and grouting bound of similar project.更多还原