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为了对矿井进行合理的开采设计和施工,从原岩应力角度分析冲击地压发生的机理,并提供更有效的防治措施,首先应对工程区域的地应力条件进行分析,从而,科学的选择巷道和采场的最佳断面、优化巷道布置、改善支护形式和参数。为此,在城山煤矿开展了井下压力显现的实测工作,用现场收集的数据总结分析地应力分布的基本情况和规律,并根据现有的开采技术和生产条件,研究地应力对井下采掘工作的影响。本次地应力实测采用钻孔套芯应力解除法,在矿井中部区共设置了3个测试点。
In order to mine a reasonable mining design and construction, from the perspective of the original rock stress analysis of the mechanism of rockburst and provide more effective control measures, first of all to deal with the analysis of the stress conditions in the project area, thus, the scientific choice of roadway and Stope the best section, optimize the layout of the roadway, improve the support form and parameters. To this end, the Chengshan Coal Mine carried out a survey of underground pressure show that the use of data collected on-site analysis of the distribution of the basic conditions and laws of geostress, and based on existing mining technology and production conditions, the study of underground stress underground mining work influences. The ground stress measured using drill core stress relief method, a total of three test points in the central area of the mine set.