城市轨道交通隧道周边建(构)筑沉降预测方法研究  

STUDY OF BUILDING/STRUCTURE SETTLEMENT PREDICTION METHOD SURROUNDING URBAN RAIL TRANSIT TUNNEL ENGINEERING

作　　者：吴锋波[1,2,3] 金淮[1] 尚彦军[4] 刘永勤[1] 

机构地区：[1]北京城建勘测设计研究院有限责任公司,北京100101 [2]北京城建集团有限责任公司,北京100088 [3]北京科技大学土木与环境工程学院,北京100083 [4]中国科学院地质与地球物理研究所,北京100029

出　　处：《岩石力学与工程学报》2013年第S2期3535-3544,共10页Chinese Journal of Rock Mechanics and Engineering

基　　金：北京市优秀人才培养资助个人项目(2012ZG–40)

摘　　要：根据建筑沉降曲线基本符合正态分布的特点,对隧道工程地表沉降预测Peck公式进行推导和参数修正,建立建(构)筑物沉降预测公式。通过工程案例总结和理论分析,研究单层和两层建筑的荷载作用对其变形的影响。通过数值模拟分析,研究建(构)筑物与隧道工程的空间位置关系对建筑基础沉降的影响。根据地层损失率Vl已有的研究成果和建(构)筑物沉降预测公式,计算得出国内不同城市的建(构)筑物沉降槽宽度参数Ks的参考取值。工程实践表明,建(构)筑物沉降预测公式计算结果与数值模拟、实际监测结果较为吻合,该公式具有很好的实用性,可应用于类似工程的建筑基础沉降预测。The building/structure settlement curve fits to the normal distribution. The Peck formula in tunnel engineering ground surface settlement prediction is derived,and its parameter meaning is changed to establish the building/structure settlement prediction formula. The single and two layer buildings load effect on the deformation are studied by the engineering cases summary and theoretical analysis. The building/structure settlements in different locations of tunnel engineering are studied by numerical simulation. With the existing parameter value of volume loss(Vl) and building/structure settlement prediction formula,the reference value of building/structure settlement trough width parameter(Ks) in different countries are calculated. The engineering practices show that the building/structure settlement prediction formula calculation result,numerical simulation result and monitoring result are in good agreement. The formula has very good practicality,and it could be applied to similar building/structure foundation settlement prediction.

关 键 词：隧道工程 城市轨道交通 建(构)筑物 沉降预测 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]