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