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.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
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)
关键词
隧道工程
城市轨道交通
建(构)筑物
沉降预测
tunneling engineering
urban rail transit
building/structure
settlement prediction
