水平荷载作用下横观各向同性地基力学性状研究  

The pricing formula of indexed executive stock options in fractional motion environment

作　　者：李婕[1] 高雪冰[1] 顿志林[1] 

机构地区：[1]河南理工大学土木工程学院,河南焦作454003

出　　处：《河南理工大学学报（自然科学版）》2007年第4期424-429,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：河南省自然科学基金资助项目(974040900)

摘　　要：为了分析各向异性特征对地基受力行为的影响,基于位移法求得的横观各向同性地基空间问题的通解,利用Hankel积分变换理论和Bessel函数理论,在极坐标系中推导出了任意单向水平荷载作用下横观各向同性弹性地基中的附加应力解析解.根据1组实测的弹性参数,通过算例分析,给出了横观各向同性地基内部附加应力分量的空间分布图,比较了横观各向同性地基与各向同性地基力学性状的差异之处,表明岩土材料固有的各向异性特征对地基内部附加应力的分布具有显著影响.In order to analyze the effect of anisotropic characteristic on mechanical behaviour of foundation, and based on the three -dimensional general solution for transversely isotropic foundation obtained strictly by the displacement function method in polar coordinates, the analytical solutions of additional stresses under unilateral horizontal loads are derived. The analytical solution is performed by using Hankel integration transform and Bessel function theory. With one set of measured elastic constants, spatial distributing curves of stress component are given, and distributions of additional stresses in transversely isotropic foundation and in isotropic foundation are compared, which indicates that the inherent anisotropic characteristic of geotechnical materials has remarkable influence on distribution of the additional stresses in foundation.

关 键 词：横观各向同性 非轴对称半空间问题 单向水平荷载 

分 类 号：TU43[建筑科学—岩土工程] TB12[建筑科学—土工工程]