摘要
分析了裂隙岩体渗流场与应力场相互作用的实质,提出了渗流的渗透体积力、渗透压力以及对应力场的影响机理;采用有限元数值模拟的方法计算出渗流场影响下的应力场分布、应力场影响下的渗流场分布以及应力场和渗流场各自非耦合分布.以工程实例说明:在渗流作用力的影响下,坝基的各应力分量都增大,对坝基的稳定造成了不利影响.
The essence of interaction of seepage field and stress field in fissure rockmass is analyzed,permeate volume strength and permeate pressure and their effects on stress field are also presented.The stress distribution influenced by the seepage field,the seepage distribution influenced by the stress field,and the uncoupled distribution of both stress field and seepage field are computed by means of numeric simulation method with FEM.It can be shown by an engineering illustration that the values of all stress components under the dam foundation increase due to the seepage,deteriorating the stabilization of the dam.
出处
《兰州理工大学学报》
CAS
北大核心
2004年第5期112-115,共4页
Journal of Lanzhou University of Technology
关键词
裂隙岩体
渗流场
应力场
耦合分析
fractured rockmass
seepage field
stress field
coupled analysis
