摘要
用三维有限单元法对桩基础下的溶洞顶板进行应力分析计算,并采用多元线性回归的方法求得桩底到溶洞顶部距离临界值与溶洞大小和单桩设计荷载之间的关系式,然后用工程实例验证了所求得的关系式的可靠性。
The stress in the roof of karst cave is analyzed and calculated by three-dimensional finite element method. The relation among the critical value of distance from pile foot to karst cave top,the karst cave sizes and design load of single pile can be obtained by means of multivariable linear regression method. Finally,the reliability of the regression equation is verified by engineering example.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第4期532-536,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
溶洞
稳定性分析
三维有限单元法
多元线性回归方法
karst cave,stability analysis,three-dimensional finite element method,multivariable linear regression method
