Study on Higher Mining Desigh in Consideration of Complex Grometry Effect

考虑复杂几何效应的高级采矿设计研究

• 批准号: 60460189
• 负责人: MIZUTA Yoshiaki
• 金额: $ 2.94万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60460189/
• 关键词: Prediction Calculation of Rock Behavior; Shape Effect; Displacement Discontinuity Method; Distindt Element Method; 岩盤挙動の計測; 岩盤変位測定; 岩盤応力測定; 応力変化測定; 採掘設計; 採掘の進行に伴う岩盤応力変化; 応力解析; 境介要素法; 崩塊のシミュレーション; 岩盤応力・変位の計測

The systems for quasi-three dimensional and complete three dimensional elastic analyses by Displacement Discontinuity Method were developed and those were applied to higher mining design in Yanahara Mine, Toyoha Mine, Kiwada Mine and Kokura Mine. The system to predict behavior of discontinuous rocks by Distinct Element Method, which is two dimensional but can be applied to any geometrical modelling was developed and, it was applied to analyses of quarry stability when earthquake happens.In situ measurements of rock deformations and stresses induced by mining progress were carried out in Yanahara Mine and Kokura Mine. The roof sinkages measured in Yanahara Mine are compared with those predicted by numerical modelling. Stress changes measured in both the mines were compared each other and general responses of rock around the openings to mining progress are obtained.

建立了用位移不连续面法进行准三维和全三维弹性分析的系统，并应用于柳原矿、丰叶矿、龟田矿和小仓矿的较高采矿设计。建立了离散单元法预测不连续岩石性态的系统，该系统是二维的，可以应用于任何几何模型，并将其应用于地震发生时采石场的稳定性分析。将柳原矿实测的顶板下沉与数值模拟预测的下沉进行了对比。对两个矿井的应力变化进行了对比，得到了巷道围岩对开采进度的总体响应。

项目成果

Y.Mizuta: "Computer Simulation of Coal and Gas Outburst" Proc. Int. Symp. Coal Mining and Safety. 291-300 (1987)

Y.Mizuta：“煤与瓦斯突出的计算机模拟”Proc。

H.K.Lee: "Analysis of Rock Behavior for Safe Excavation Mine Pillar" Proc. Int. Symp. Large Rock Cavern. 681-692 (1986)

H.K.Lee：“安全挖掘矿柱的岩石行为分析”Proc。

Y. Mizuta, O. Sano, S. Sudo, T. Nohmi and S. Sakuma: "Simple Monitorings of Rock Behavior for Safe Underground Mining" Proc. 29th U.S. Symp. Rock Mech.(1988)

Y. Mizuta、O. Sano、S. Sudo、T. Nohmi 和 S. Sakuma：“安全地下采矿的岩石行为的简单监测”Proc。

H. K. Lee;Y. Mizuta: Proc. Int. Symp. Large Rock Cavern. 681-692 (1986)

H.K.李;Y.

H. K. Lee;Y. Mizuta;W. Chou: Proc Int. Symp. Engineering in Complex Rick Formations. 318-324 (1986)

H.K.李;Y.