地铁主体结构变形监测的必要性分析

Analysis of Necessity of the Primary Structural Transmutation Observation in Subways

研究目的:通过对多个城市已建成的城市轨道交通线路进行调查,分析地铁工程在建设及运营期间主体结构变形的原因和特点,总结其变形规律,预测变形发展趋势,找出变形的突出部位和监测要点,为地铁的运营监测起到一定的指导作用,也希望借此能引起地铁运营管理者对主体结构变形监测的重视。研究结论:城轨交通工程在运营期间,主体结构普遍存在变形的问题,有必要对主体结构变形进行监测,动态掌握结构变形情况。选择代表性部位进行沉降、水平位移、收敛等变形监测,对变形较大的地段及时采取适当的补救措施,确保运营安全,对保障安全运营是非常必要的,相关部门应引起足够的重视。

Research purposes ： This paper analyzes the reasons and characteristics of the main structure transmutation of underground engineering in construction and circulation, summarizes the transmutation principle and forecasts the development trend of transmutation. Therefor, it is necessary to observe the primary structure transmutation, master the circs of structural transmutation dynamic, adopt proper remediation steps on the larger transmutation region in times, insure the circulating security. Research conclusions： When urban rail transit engineering begins operating, the primary structure may occur transmutation generally. So, it is necessary to adopt some proper means to observe and it is necessary to master the structural transmutation status in time. These are of advantage to operating safely and these should be much accounted of by correlative departments.