近年来,我国的交通事业得到了飞速的发展,在高速铁路建设中,经常会出现穿越回填段的情况.土质隧道变形问题均没有列入隧道设计施工规范,设计图中往往因支护参数偏低,施工中常常因对隧道沉降变形疏忽,经常造成衬砌厚度不足,严重的造成塌方,需返工处理,加重工期压力,另外造成大量的成本流失.在本文中,将就浅埋回填土质高速铁路隧道控制变形技术进行一定的研究,并提出预防浅埋回填土质铁路隧道施工变形和地表沉降的工法和相应的技术措施,最后通过工程案例验证该工法的实效性,以期为同类工程提供有参考价值的技术资料.%In recent years,China's transportation industry has been rapid development,and in the construction of high-speed railway,there will be a lot of backfill.The deformation of soil tunnel is not included in the tunnel design and construction specifications.The low supporting parameters in the design and the negligence of the tunnel deformation settlement often cause insufficient lining thickness,resulting in serious landslides,which needs to rework,increasing the pressure on the construction period,in addition to a large number of cost losses.This paper studies control technology of high-speed railway tunnel with shallow backfill soil,and puts forward the method of preventing the construction deformation and surface settlement of high-speed railway tunnel with shallow backfill soil,finally verifies the effectiveness of the method through the engineering case,in order to provide technical information with reference value for similar projects.
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