Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh
文献类型:期刊论文
作者 | Md. Rafiqul ISLAM ; Mohammed Omar FARUQUE |
刊名 | Journal of Mountain Science
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出版日期 | 2013-12 |
卷号 | 10期号:6页码:976-986 |
关键词 | Open pit coalmine Optimum slope angle Safety factor Seismic stability |
通讯作者 | Md. Rafiqul ISLAM |
英文摘要 | The present study reflects upon the results of substantial program of two-dimensional Finite Element Method (FEM) numerical analyses of the open pit that links to slope angle optimization associated with the safety factor of the pit slope of a coal mine in Bangladesh. In the present analyses, two types of models have been presented. The first model estimates safety factor without seismic effect on the overall pit slope of the model; the second model incorporates safety factor with seismic stability of the model. The calculated optimum slope angle of the first model is 31o with a rational safety factor of 1.51, prior to the seismic effect. However, the value is reduced to 0.93, 0.82, and 0.72, after we applies the seismic effect in the second model with M6, M6.5, and M7, respectively. Finally, our modeling results emphasize that for the case of the proposed Phulbari coalmine, there is extremely high prospect for causing massive slope failure along the optimum pit slope angle with 31o if the mine area felt seismic shaking, like the Sikkim (in northern India) earthquake with M6.9 on September 18, 2011. |
收录类别 | SCI |
公开日期 | 2013-11-26 |
源URL | [http://ir.imde.ac.cn/handle/131551/6527] ![]() |
专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2013_Vol10 No.6 |
推荐引用方式 GB/T 7714 | Md. Rafiqul ISLAM,Mohammed Omar FARUQUE. Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh[J]. Journal of Mountain Science,2013,10(6):976-986. |
APA | Md. Rafiqul ISLAM,&Mohammed Omar FARUQUE.(2013).Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh.Journal of Mountain Science,10(6),976-986. |
MLA | Md. Rafiqul ISLAM,et al."Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh".Journal of Mountain Science 10.6(2013):976-986. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
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