GAO Zhaoning
Mobile Center of Postdoctor Science and Research of Mining Engineering, Anhui University of Science & Technolyg, Huainan, Anhui 232001, China; Key Laboratory of Coal Mine Safety and High Efficiency Mining Cosponsored by Province and MOE, Huainan, Anhui 232001, ChinaMENG Xiangrui
Key Laboratory of Coal Mine Safety and High Efficiency Mining Cosponsored by Province and MOE, Huainan, Anhui 232001, ChinaFU Zhiliang
Key Laboratory of Coal Mine Safety and High Efficiency Mining Cosponsored by Province and MOE, Huainan, Anhui 232001, ChinaAccording to seepage body force, strain softening and rupture expansion of rock mass, elastic-plastic mechanics theory, distribution laws of stress and displacement of surrounding rock in seepage field are derived, and relationships between different zonation range of the surrounding rocks, pore water pressure, strain softening and rupture expansion are established. The results show that the pore water pressure and rupture expansion rock mass have a more obvious impact on the surrounding rock rupture area than the plastic zone. Both the plastic zone and the rupture area are larger when the seepage field is considered. The impact of strain softening on both the plastic zone and the rupture zone of surrounding rock is very significant, and both seepage and strain softening rupture expansion affect deformation of surrounding rock of roadways obviously. It provides certain reference values for the roadway support engineering in seepage field.
高召宁,孟祥瑞,付志亮.考虑渗流、应变软化和扩容的巷道围岩弹塑性分析[J].重庆大学学报,2014,37(1):96~101
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