摘要
为了解决软土地区盾构掘进过程中参数对地表沉降的影响问题,本文以常州地铁1#线的旅新区间盾构施工实测监测数据为研究对象,结合Peck沉降理论并运用最小二乘法线性回归分析法,分析了盾构掘进过程中各断面横向地表沉降与纵向地表沉降模式,通过计算得到常州地区横向地表沉降模式符合Peck公式,沉降槽宽度系数k的取值范围为0.3～0.65,不同地质条件下纵向地表沉降形态较一致,主要可分为4个阶段。常州地铁全线地表沉降较一致,研究结论可以推广到整个常州地区。
In order to solve the problem of the influence of the parameters on the surface subsidence during the shield tunneling in the soft soil area, this paper takes the monitoring data of the shield construction in the new section of Changzhou Metro Line 1 as the research object, and analyzes the lateral and longitudinal surface subsidence modes of the sections during the shield tunneling by combining the Peck settlement theory and the least square linear regression analysis. According to calculation,the mode of lateral surface subsidence conforms the Peck formula in Changzhou area, and the range of the width coefficient K of the settlement trough is 0.3~0.65. The longitudinal surface subsidence form under different geological conditions is more consistent, and it can be divided into four stages. The surface settlement of Changzhou Metro is consistent, and the conclusion can be extended to the whole Changzhou area.
作者
潘俊
孙银娟
胥稳
杨宝怀
左翠凤
王燕芳
PAN Jun;SUN Yinjuan;XU Wun;YANG Baohuai;ZUO Cuifeng;WANG Yanfang(Changzhou Rail Transit Development Co., Ltd., Jiangsu Changzhou 213022, China;The First Geological Team Of Jiangsu Bureau Of Geology And Mineral Exploration, Nanjing 210041,China;Nanjing Kentop Civil Engi. Technology Co., Ltd,Nanjing 210041,China)
出处
《低温建筑技术》
2018年第12期95-99,113,共6页
Low Temperature Architecture Technology
基金
常州地铁科研项目(GD-ZA-16006)
