摘要
为了研究露天煤矿工业场地压占下靠帮开采参数以及经济效益,以红沙泉露天煤矿西帮为研究对象,采用二维与三维稳定性数值模拟进行边坡角度优化,确定最大边坡角;在确定新边坡角度后,以工业场地是否拆除为对比因素核算不同条件下的资源回收量和经济效益。结果表明,红沙泉露天煤矿西帮最大边坡角度为35°,在此基础上拆除储煤场增加拆除成本4 044万元,相较于拆除前,靠帮开采成本和剥离成本分布增加156 916万元和131 953万元,开采原煤价值上升523 052万元,经济效益增加230 139万元,具有更好的经济效益。
In order to study the parameters and economic benefits of slope mining under the occupation of industrial sites in open-pit mines,the western slope of Hongshaquan open-pit mine was taken as the research object.Two dimensional and three-dimensional stability numerical simulations were used to optimize the slope angle and determine the maximum slope angle;After determining the angle of the new slope,the resource recovery and economic benefits under different conditions are calculated based on whether the industrial site is demolished as a comparative factor.The results show that the maximum slope angle of the west slope of the Hongshaquan open-pit mine is 35°.On this basis,dismantling the coal storage yard increases the dismantling cost by 40.44 million yuan.Compared with before dismantling,the distribution of steep mining and stripping costs increases by 1569.16 million yuan and 1319.53 million yuan,respectively,the value of extracted raw coal increases by 5230.52 million yuan,and the economic benefits increase by 2301.39 million yuan.
作者
严浩铭
平玮
张治军
马力
YAN Haoming;PING Wei;ZHANG Zhijun;MA Li(CHN Energy Xinjiang Hongshaquan Energy Co.,Ltd.,Urumqi 838100,China;School of Mines,China University of Mining&Technology,Xuzhou 221116,China;College of Energy Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)
出处
《陕西煤炭》
2025年第5期104-109,共6页
Shaanxi Coal
基金
国家自然科学基金面上项目(52374144)
新疆维吾尔自治区重大科技专项项目(2023A01002)
辽宁省自然科学基金-国家重点实验室联合开放基金项目(2022-KF-23-10-)。
关键词
露天矿
边坡稳定
靠帮开采
工业场地
经济效益
open-pit mine
slope stabilization
steep mining
industrial site
economic benefits
