煤炭工程 ›› 2017, Vol. 49 ›› Issue (3): 4-7.doi: 10.11799/ce201703002
• 设计技术 • 上一篇 下一篇
罗晓青
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摘要： 基于现有的弹塑性理论，建立了考虑井壁和围岩相互作用的平面应变力学模型。首先，研究了该力学模型的适用条件，推导出新的井壁厚度计算公式|其次，讨论了井壁支护抗力、塑性区范围和井筒几何尺寸的相互关系|最后，分别分析围岩的剪切模量、摩擦角和粘聚力等物理力学参数对井壁受力的影响，更深刻地揭示井壁和围岩相互作用的机理。
关键词: 立井井筒, 井壁设计, 弹塑性理论, 力学模型
Abstract: Based on elastic-plastic theory, the interaction mechanics model between shaft lining and surround rock has been created.In the condition that stress and displacement at the boundary surface are equal, the displacement and stress equations of shaft lining and surround rock in the elastic and plastic regions have been derived, then the formula for calculating the thickness of shaft lining was obtained.Discussed the relationship between the resistance of shaft lining, plastic zone and displacement,the force on the elastic-plastic interface and the geometry.Influence on thickness design caused by the physical and mechanical parameters of surrounding rock have been discussed.
中图分类号:
TD262
罗晓青. 基于围岩弹塑性理论的立井井壁厚度设计研究[J]. 煤炭工程, 2017, 49(3): 4-7.
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