缓倾斜薄矿体群壁式空场嗣后充填采矿法试验
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摘要
水银洞金矿黄金资源量巨大,但矿体分散、厚度薄、倾角缓、顶板不稳固,且水害严重,为典型的难采矿体。为此,对其采矿方法进行优化,提出了壁式空场嗣后充填采矿法。该方法通过优化采场结构参数,使用组合式连续液压支柱,采用大跨度壁式回采工作面,改进出矿方式,并对采空区进行嗣后充填,提高了采矿效率10倍,使贫化率控制在5%,损失率控制在8%内,生产成本降低55元/t,取得了优良的经济技术指标。
The gold resources in Shuiyindong Gold Mine are huge.It is a typically difficult mining ore body,with dispersed ore body and thin thickness,gentle dip,unstable roof,and serious water hazard.For this reason,the mining method was optimized and the group-wall open stoping with subsequent backfilling method was put forward.By optimizing stope structural parameters,using combined continuous hydraulic props,adopting large-span wall mining face,improving the mining method,as well as filling the goaf subsequently,the mining efficiency was increased by 10 times,the dilution rate was controlled at 5%,the loss rate was controlled within 8%,the production cost was reduced by 55 yuan/t,obtaining excellent economic and technical indexes.
The gold resources in Shuiyindong Gold Mine are huge.It is a typically difficult mining ore body,with dispersed ore body and thin thickness,gentle dip,unstable roof,and serious water hazard.For this reason,the mining method was optimized and the group-wall open stoping with subsequent backfilling method was put forward.By optimizing stope structural parameters,using combined continuous hydraulic props,adopting large-span wall mining face,improving the mining method,as well as filling the goaf subsequently,the mining efficiency was increased by 10 times,the dilution rate was controlled at 5%,the loss rate was controlled within 8%,the production cost was reduced by 55 yuan/t,obtaining excellent economic and technical indexes.
引文
[1]高常华,张承明.无轨连续采矿工艺在缓倾斜薄矿体中的应用[J].中国矿山工程,2016,45(1):10-14.
[2]杨映忠.缓倾斜中厚矿体机械化上向水平分层充填采矿法关键技术探索[J].低碳世界,2014(9):116-117.
[3]杨树林,谷中元,石振东,郑建明.倾斜-急倾斜厚矿体采矿方法的探讨[J].采矿技术,2014,14(1):24-25.
[4]胡建华,周科平,郭旺,雷涛,罗先伟,甯瑜琳,高峰,张超兰.一种壁式缓倾斜薄矿体机械化连续采矿方法[P].中国:CN102493806A.
[5]陈昌松,毕海涛.煤矿巷道支护技术与设备的应用探讨[J].煤矿技术,2016(6).
[6]李江,杜强,吴路波.大尹格庄金矿深部破碎矿体安全高效采矿方法研究[J].勘察测绘,2014,4(31).
[7]刘斯忠,王洪江,吴爱祥,黄明清.破碎软岩中长锚索支护参数设计及其应用[J].铜业工程,2013(2).
[8]张保芳,王志刚.近距离煤层采空区下巷道布置与锚杆支护研究[J].山西焦煤科技,2015(12).
[2]杨映忠.缓倾斜中厚矿体机械化上向水平分层充填采矿法关键技术探索[J].低碳世界,2014(9):116-117.
[3]杨树林,谷中元,石振东,郑建明.倾斜-急倾斜厚矿体采矿方法的探讨[J].采矿技术,2014,14(1):24-25.
[4]胡建华,周科平,郭旺,雷涛,罗先伟,甯瑜琳,高峰,张超兰.一种壁式缓倾斜薄矿体机械化连续采矿方法[P].中国:CN102493806A.
[5]陈昌松,毕海涛.煤矿巷道支护技术与设备的应用探讨[J].煤矿技术,2016(6).
[6]李江,杜强,吴路波.大尹格庄金矿深部破碎矿体安全高效采矿方法研究[J].勘察测绘,2014,4(31).
[7]刘斯忠,王洪江,吴爱祥,黄明清.破碎软岩中长锚索支护参数设计及其应用[J].铜业工程,2013(2).
[8]张保芳,王志刚.近距离煤层采空区下巷道布置与锚杆支护研究[J].山西焦煤科技,2015(12).