摘要
本文从可透水地基应力满足的基本方程出发,研究了水荷载的合理组合形式,指出了在考虑渗流体积力的同时,又考虑地基表面水压力这一荷载组合的不妥之处,给出了此种组合的两种修正方案和与之等价的水荷载组合形式。实例计算表明,水荷载组合的正确与否,对计算结果影响很大。
Starting from the fundamental equations satisfied by permeable foundation stressess, this paper studies the rational combination form of water -load. It points out the impropriety of the load combination of simultaneously considering the seepage volume force and the water pressure at the foundation surface. Two revised schemes of such a combination and the equivalent water-load combination form are given . A case history calculation manifests that the correctness of water -load combination has great influence to the calculation results.
出处
《勘察科学技术》
1995年第3期3-7,共5页
Site Investigation Science and Technology
关键词
坝基
应力
渗流
水荷载
有限元
dam foundation
stress
seepage
water-load
finite element
