应用现代数值模拟方法确定地下矿山开挖围岩应力-应变状态及非弹性变形区

IF 0.7 Q4 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Journal of Sustainable Mining Pub Date : 2021-10-09 DOI:10.46873/2300-3960.1324
S. Ignatiev, A. Sudarikov, A. Imashev
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引用次数: 2

摘要

本文综述了地下矿山开挖前后地质力学过程数值模拟的方法和发展趋势。选择了最合理的确定矿山开挖附加应力的方法。对不同断面、不同岩石强度的开挖进行了数学建模。确定了矿山开挖周围非弹性变形带的尺寸。计算了基坑周围总破裂带面积和顶板破裂带面积。裂缝带建模的结果以坐标和图形两种形式表示。为了简化建模结果的应用,建立了所得参数的依赖关系图,并识别了裂缝带参数的解析依赖关系。使用SURFER和KOMPAS软件包作为可视化建模结果的图形工具。
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Determination of the stress-strain state of rock mass and zone of inelastic deformation around underground mine excavation using modern methods of numerical modelling
The paper reviews methods and trends of numerical modelling of geomechanical processes around underground mine excavations. The most rational method of determining the additional stresses caused by the mine excavations is chosen. Mathematical modelling was performed for excavations of various cross sections and different strength of rocks. The dimensions of the inelastic deformation zone around the mine excavations have been identified. The area of the total fracture zone around the excavation, as well as the area of the roof fracture zone are calculated. The results of the fracture zone modelling are presented both as coordinates and in a graphical form. To simplify application of the modelling results, dependency plots of the obtained parameters were created and analytical dependencies of the fracture zone parameters were identified. The SURFER and KOMPAS software packages were used as the graphic tools to visualize the modelling results.
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来源期刊
Journal of Sustainable Mining
Journal of Sustainable Mining Earth and Planetary Sciences-Geology
CiteScore
1.50
自引率
10.00%
发文量
20
审稿时长
16 weeks
期刊最新文献
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