Comparative study of mining methods for reserves beneath end slope in flat surface mines with ultra-thick coal seams

被引：0

作者：

Zha Zhengao ^{[1
]}

Ma Li ^{[2
,3
]}

Li Kemin ^{[1
]}

Ding Xiaohua ^{[1
]}

Xiao Shuangshuang ^{[2
]}

机构：

[1] School of Mines,China University of Mining and Technology

[2] School of Energy Engineering, Xi'an University of Science and Technology

[3] State Key laboratory for Geomechanics & Deep Underground Engineering, China University of Mining and Technology

来源：

InternationalJournalofMiningScienceandTechnology | 2017年 / 27卷 / 06期

关键词：

Ultra-thick coal seam; End wall in surface mine; Highwall Mining System; Local steep slope; Resource exploitation;

D O I：

暂无

中图分类号：

TD824 [露天煤矿开采];

学科分类号：

081901 ;

摘要：

The paper aims to identify a reasonable method for mining ultra-thick coal seams in an end-slope in surface mine, With a case study of Heidaigou surface coal mine(HSCM), the paper conducted a comparative research on three mining methods, namely Underground Mining Method(UMM), Highwall Mining System(HMS) and Local Steep Slope Mining Method(LSSMM). A model was firstly established to simulate the impact that UMM and HMS exert on monitoring points and surface deformation. The way that stripping and excavation amount varies with different slope angle, and the corresponding end slope stability were analyzed in the mode of LSSMM. Then a TOPSIS model was established by taking into account six indicators such as recovery ratio, technical complexity and adaptability, the impact on surface mining production, production safety and economic benefits. Finally, LSSMM was determined as the best mining method for mining ultra-thick coal seams in end slope in HSCM.

引用

页码：1065 / 1071

页数：7

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