基于地层损失的盾构沉降计算方法研究进展  

Advance in Calculation of Subsidence Caused by Shield Tunnel Based on Strata Loss

作　　者：王建秀[1,2] 付慧仙 朱雁飞[3] 唐益群[1,2] 杨坪[1,2] 

机构地区：[1]同济大学岩土工程教育部重点实验室,上海200092 [2]同济大地下建筑与工程系,上海200092 [3]上海隧道工程股份有限公司,上海200093

出　　处：《地下空间与工程学报》2010年第1期112-119,150,共9页Chinese Journal of Underground Space and Engineering

基　　金：上海市人才发展资金(2007);国家支撑计划(2008BAJ08B14-06);国家自然科学基金-雅砻江水电联合研究基金(编号50579097);上海市重点学科(地质工程)B308;上海白玉兰科技人才基金(2008)

摘　　要：近年来,越来越多的盾构隧道要穿越建筑密集区、重点建筑保护区和沉降敏感区,地面沉降的科学预测和合理控制成为亟待解决的问题。盾构法隧道施工诱发地面沉降的影响因素较多,但主要因素可归结为地层损失引起的地表移动。基于现有地层损失概念,按照经验-数学法和物理力学法体系论述了国内外盾构推进诱发地面沉降的研究进展,分析了现有研究方法的不足之处,对地层损失概念进行了重新界定,建立了基于沉降预测-施工控制的地层损失概念模型,提出了基于"地面沉降-地层损失-施工参数"联系通道的地面沉降控制流程。Recently,lots of shield tunnel run through the areas of dense buildings, protected buildings and area sensible to subsidence, and the subsidence predication and control become a serious problem have to face. There are several factors influencing the subsidence and the main driving factor is the deformation caused by strata loss. The research development of shield tunnel subsidence based on strata loss in at home and abroad are presented with the system of ＂experience - mathematical method ＂and ＂physical- mechanical method＂. The deficiencies of current research are discussed, and a new concept is established and a conceptual model is set up based on subsidence control, which will provide a bridge between subsidence and strata loss together with strata loss and operation parameters.

关 键 词：盾构沉降 地层损失 沉降预测 沉降控制 概念模型 

分 类 号：U455[建筑科学—桥梁与隧道工程]