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本文论述了矿山超前集中应力的分布规律与矿山地下工程的矿压显现。较系统地研完了回采工作面底板的垂直、水平附加应力场和底板岩体的应力状态,得出了相应的计算公式和底板垂直、水平应力升高区、极限平衡区的范围与深度。在此基础上,研完了受超前集中应力影响的矿山地下工程的围岩位移、应力、压力、支护结构与参数的选择、井巷的合理布置等,得出了基本计算公式与结论。这对认识矿山压力分布规律和矿山地下工程的设计、施工,提高技术经济效果,有一定的现实意义。
This paper discusses the distribution law of pre-concentration stress of mine and the underground pressure of underground mine. The vertical and horizontal additional stress field and the stress state of the floor rock mass of the floor of the mining face are systematically studied. Corresponding calculation formulas and the range and depth of the floor vertical and horizontal stress rise zone and the limit equilibrium zone are obtained. On this basis, the basic calculation formula and conclusion have been obtained by studying the surrounding rock displacement, stress and pressure, the choice of supporting structure and parameters and the reasonable layout of the roadway in the mine underground project affected by the pre-stress. It is of practical significance to understand the laws of mine pressure distribution and the design and construction of mine underground engineering and to improve the technical and economic results.