均匀软质地层条件下土压平衡盾构施工的合理顶进推力分析  

Analysis of reasonable thrust force during tunnel excavation in homogeneous soft ground by use of earth pressure balance shield machine

作　　者：徐前卫[1] 朱合华[2] 廖少明[2] 郑七振[3] 周奎[3] 

机构地区：[1]上海理工大学土木工程系,上海200093 [2]同济大学岩土及地下工程教育部重点实验室,上海200092 [3]上海交通大学船舶海洋与建筑工程学院,上海200030

出　　处：《岩土工程学报》2008年第1期79-85,共7页Chinese Journal of Geotechnical Engineering

基　　金：国家863计划项目(2006AA11Z102);上海高校选拔培养优秀青年教师科研专项基金;上海理工大学博士科研启动基金

摘　　要：应用数学和力学方法,从土压平衡盾构的掘削工作机理入手,研究顶进推力的计算方法及其影响因素。开展土压平衡盾构的掘削模型试验,研究在不同埋深、不同刀盘开口率以及不同土性时的千斤顶顶进推力的变化规律,并对前述理论研究成果加以验证。结合地铁隧道工程实例,应用推导的推力计算公式预测盾构推进过程中的顶进推力,取得了较为满意的结果。The reasonable calculation method of thrust force and its influencing factors were studied by applying mathematics and mechanics based on the working mechanism of EPB shield machine. Model experiments on thrust force during tunnel excavation with EPB shield machine under different conditions of burying depth, cutter opening rate and soil property were carded out. The aforementioned theoretical results were also verified. Combining with a subway tunneling case, the derived formula was used to forecast the values of thrust force in the course of shield tunneling, and satisfactory results were achieved.

关 键 词：土压平衡 盾构机 顶进推力 模型试验 地下工程 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]