深覆盖岩溶地基防渗墙应力变形影响因素
摘要：堤基防渗技术关系到整个水利工程的安危，是在透水地基上修建挡水建筑物的关
键。对防渗墙的工作性能进行合理的评价，能够有效提高堤坝运行的稳定性。本文基于相关
理论研究，结合大伙房水库堤坝工程，对深覆盖岩溶地基防渗墙的应力进行了系统研究，通
过相关数据模型对防渗墙体的相关弹性模量进行了数值计算，研究分析了防渗墙应力变形的
影响因素，得到了引起墙体变形的主要原因，塑性墙较之刚性墙，能更好地保持应力状态，
水平位移主要取决于墙后覆盖层承载条件等结论，为今后相关水利工程的设计施工提供数据
支持。
关键词：防渗墙；岩溶地基；弹性模量；塑性墙
Influencing factors of stress and deformation of impervious wall
in deep covered karst ground
Abstract:. Embankment seepage control technology is related to the safety of the entire water
conservancy project, which is the key to building retaining structures on seepage foundation. The
reasonable evaluation of the performance of the impervious wall can effectively improve the stability
of the dam. In this paper, based on the relevant theoretical research, combined with the dam project
of Dahuofang reservoir, the stress of impervious wall in deep covered karst ground has been studied
systematically. The relevant elastic modulus of the impervious wall has been numerically calculated
through correlation data model. The main factors that cause the deformation of the wall are the
factors that cause the deformation of the impermeable wall. The plastic wall can maintain the stress
state better than the rigid wall, and the horizontal displacement mainly depends on the bearing
conditions of the wall cover. Related water conservancy project design and construction to provide
data support.
Keywords: Cutoff wall；Karst ground；Elastic Modulus；Plastic wall
