摘要
利用搜集到的石家庄市区粉质粘土及粉土互层土层上91个点载荷试验数据,运用最佳平方逼近法建立了地基承载力概率分布模型,给出石家庄市区粉质粘土及粉土互层地基极限承载力的多项式分布公式,并与经典正态和对数正态分布模型进行比较,说明其更接近实际分布,精度较高。对以后具体工程设计参数的优选具有重要意义。
By making use of the data obtained from 91 loading test points of silt clay and silt soil strata in Shijiazhuang, a numerical model for the probable distribution of the ultimate bearing capability is established in the paper by means of the optimized square approximation, with the polynomial distribution formulae for the urban areas of Shijiazhuang City presented. The simulated results are compared with the those of the classic normal and lognormal distribution models, which shows that the simulated results are closer to the actual distribution and the accuracy of the simulation is even higher. The simulation is of great importance to the optimization of the design parameters for the design of other similar projects in the future.
出处
《国防交通工程与技术》
2013年第3期23-25,30,共4页
Traffic Engineering and Technology for National Defence
关键词
地基承载力
载荷试验
概率分布模型
数值逼近
bearing capability of the foundation
loading test
model of probable distribution
numerical approximation
