摘要：The thick plate is commonly used for the pile cap and the transfer plate, and a proper analysis of it can greatly affect the cost of the thick plate. In actual practice, soft support condition is sometimes adopted by engineers for modeling of thick plates. In this paper, the limitations of soft support in the determination of deflection and bending moment with very thick plates are studied. The distribution of superstructure ioadings to pile caps and piles is also carefully investigated.

摘要：节理岩体三维块体系统的数据结构直接关系到三维块体计算程序开发的难易及程序运行的效率。由于岩体三维块体的任意性、复杂性,使其数据的组织有相当的困难,采用面向对象的设计思想,在C++语言环境下,对三维块体系统的数据结构进行了研究与开发,获得了满意的结果。

摘要：非均匀有理B样条作为计算机辅助设计领域的曲线和曲面的标准描述方式,已经得到广泛的应用。利用非均匀有理B样条产生三维土坡的滑动底面,利用极限平衡简布法计算滑动体的安全系数,在粒子群算法寻优策略的深刻理解之上,借鉴和声策略直接模拟群体的位置更新得到了新型混合粒子群算法。利用该混合粒子群算法搜索最危险的滑动体,对一均质土坡和一软弱夹层土坡进行了计算分析,比较证明本文所提方法可应用于三维土坡稳定分析。