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系统阐述了紧邻深基坑的地铁隧道结构的变形监测体系的建立和应用,通过在紧邻地铁的一侧布设水位孔和测斜管分别获得地下水位情况、深层土体水平位移情况,引入光纤光栅技术在地铁隧道内部建立地铁结构沉降、位移、重点部位的管片的变化情况以及重点部位的轨道高差变化情况的自动化实时监测系统,从而建立起从外到内、人工和自动化结合的监测体系,这对地铁结构变形监测领域有一定的参考作用。
The establishment and application of deformation monitoring system for metro tunnel structure adjacent to deep foundation pit are systematically described. The water level hole and inclinometer pipe are arranged on the side near the subway to obtain the groundwater level and the horizontal displacement of deep soil respectively. The introduction of fiber grating Technology to establish an automatic and real-time monitoring system for the subsidence and displacement of subway structures, the changes of the pipe segments at key locations and the changes in the orbital elevation of key locations within the subway tunnel so as to establish a monitoring system combining labor and automation from the outside to the inside , Which deformation of the subway structure monitoring has some reference.