【摘要】 盾构法是今后城市地铁隧道的主要施工方法.我国虽然在盾构法隧道施工方面已取得了一定的成功经验和技术积累,但在与之相关的地质工程领域内,仍然存在许多尚待解决的理论和技术问题.依据现有的文献以及成功经验,对盾构法隧道施工中的地面沉降以及地面沉降范围估计方法进行了研究,并认为,盾构法隧道施工引起的地面沉降主要是由于其产生的附加应力造成的,地面沉降范围估计应采用多种方法进行综合评判.同时,阐述了附加应力对周围建筑物及地层的影响.更多还原

【Abstract】 The shield tunneling is main method of the subway tunneling in future in the city.The successful experience and technique have been achieved in our country,but the theoretical and technical problems are still needed to be solved in the field of geology engineering related to the shield tunneling.In this paper,the problem of the surface subsidence induced by shield tunneling and the estimation method of surface subsidence range are studied,according to existing documentation and successful experience.Based on this,the viewpoint is presented that the main reason of generating the surface subsidence is the subsidiary stress in the process of the shield tunneling,and the comprehensive analysis should be applied to the estimation method of surface subsidence range. The effect of the subsidiary stress on surrounding structure and stratum is discussed.更多还原