摘要
In order to study the water-inrush mechanism of concealed collapse pillars from the mechanical view, a mechanical model for water-inrush of collapse pillars has been established based on thick plate theory of elastic mechanics in this paper.By solving this model the deformation of water-resistant rock strata under the action of water pressure and the expression of critical water pressure for collapse pillar waterinrush have been obtained The research results indicate that：the boundary conditions and strength of water-resistant strata play important roles in influencing water-inrush of collapse pillars.The critical water-inrush pressure is determined by both relative thickness and absolute thickness of water-resistant strata.
以便从机械看法学习隐藏的倒塌支柱的水流入机制，为倒塌支柱的水流入的一个机械模型在这份报纸基于有弹性的力学的厚板理论被建立了。在水压力和批评的水压力的表示的行动下面由解决这为抗水的岩石阶层的变丑建模因为倒塌支柱水流入被获得了研究结果显示那：抗水的阶层的边界条件和力量在影响倒塌支柱的水流入起重要作用。批评水流入压力被相对厚度和抗水的阶层的绝对厚度决定。
基金
Projects are supported by the National Basic Research Program of China(No.2007CB209400)
the National Natural Science Foundation of China(Nos.50974115,50904065 and 50974107)
the 111 Project(No.B07028).
