银川地区建筑地基沉降计算经验系数取值

摘要

In order to obtain the empirical coefficient of settlement calculation for building foundation in Yinchuan area, Select multiple engineering sites in Yinchuan area, The final settlement of foundation is calculated by using the method of stratified summation and the nonlinear finite element software ADINA respectively.The settlement calculation results are compared and the differences between the two methods are analyzed.Comparing the calculated results with the measured average settlement of building foundation, got empirical coefficient of settlement calculation.Under the condition that the confidence level is 95%, Bootstrap method is used to deduce the confidence interval of the corresponding settlement calculation empirical coefficients of the two methods are [0.090, 0.142] and [0.055, 0.092] respectively.The confidence interval of the settlement experience coefficient can be used as reference for the engineering technicians in Yinchuan area.%为获得适合银川地区的建筑地基沉降计算经验系数,选取银川地区的多处工程场地,采用分层总和法和有限元软件ADINA分别计算地基最终沉降量,对比沉降计算结果.并分析两种方法的差异.将理论计算的结果对比建筑地基实测平均沉降量,得出沉降计算经验系数.在置信度为95%的条件下,采用Bootstrap法推断出两种方法对应的沉降计算经验系数的置信区间分别为[0.090, 0.142]和[0.055, 0.092],该沉降经验系数置信区间的获得可为银川地区岩土工程技术人员提供参考和借鉴.