盾构掘进法开挖隧道对地表沉降影响的预估

盾构掘进法开挖隧道引起的地表沉降对地面建筑物影响在地下工程施工中越来越受到人们的关注,而这个问题的关键是要对地表沉降进行预估.总结了国内外对盾构掘进法开挖隧道引起地表沉降进行预估的常用计算方法,如Peck横向沉降槽经验公式及修正公式、数值分析法、模型试验法和智能决策理论方法.最后就目前国内外盾构掘进法施工隧道对地表沉降影响研究中存在的问题进行了探讨,并提出了一些实质性的建议.

Identification on surface subsidence effect by shield tunneling

The influence of surface subsidence on ground building, caused by shield tunneling is concerned by more people, but the key of this problem is to pre-estimate the surface subsidence. Active calculation methods of identification about surface subsidence by shield tunneling are generalized, such as the empirical formula of Peck horizontal sink and revise formula, the number analysis method, the model experiment method, the intelligence decision theories method. Finally, the problems involved in the surface subsidence research in shield tunneling engineering in china and outside countries are studied, and some substance suggestions are put forward.