Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for treating coal gangue heaps
The invention discloses a method for treating coal gangue heaps. The method for treating the coal gangue heaps includes the following steps that S1, a coal mine goaf stability zone is selected as a coal gangue treatment site; S2, 0.5 m-1.0 m of surface soil is stripped to be stacked near a goaf; S3, concrete is sprayed on the pit bottom and side of the goaf, shotcrete adopts P.C42.5 grade composite cement, and the quality ratio is 18%-25%; sand adopts medium sand, and the quality ratio is 30%-55%; gravel is hard and durable, the maximum particle size is less than 10 mm, and the quality ratio is 30%-45%; and S4, coal gangue is placed in the treated goaf, and the coal gangue backfill reaches 1.5m-1m below the ground treatment elevation. The method for treating the coal gangue heaps can solvethe problem that a large amount of coal gangue accumulates and occupies land to lead geological disasters; the coal gangue can be effectively avoided to pollute soil, the governance time is short, and the cost is low; and the method for treating the coal gangue heaps is suitable for popularization and application in the coal mine goaf, at the same time, coal gangue transportation is avoided, a lot of costs are saved, and at the same time, the spontaneous combustion of the coal gangue is avoided.
本发明公开了一种处理煤矸石堆物的方法，包括如下步骤：S1、选取煤矿采空稳定区作为煤矸石处理场地；S2、将地面表土剥离0.5m～1.0m，堆置于采空区附近；S3、在采空区坑底及侧面喷射混凝土，喷浆混凝土采用P.C42.5级复合水泥，质量比例为18％～25％；砂子采用中砂，质量比例为30％～55％；碎石采用坚硬、耐久，最大粒径小于10mm，质量比例为30％～45％；S4、将煤矸石置于处理后的采空区中，煤矸石回填达到地面治理标高下1.5m～1m处；本发明，能够解决大量煤矸石堆积占压土地和引起地质灾害的问题；能够有效避免煤矸石污染土壤，治理时间短、成本低；适宜在煤矿采空区推广应用，同时避免煤矸石的运输，节省大量成本，同时避免煤矸石的自燃。
Method for treating coal gangue heaps
The invention discloses a method for treating coal gangue heaps. The method for treating the coal gangue heaps includes the following steps that S1, a coal mine goaf stability zone is selected as a coal gangue treatment site; S2, 0.5 m-1.0 m of surface soil is stripped to be stacked near a goaf; S3, concrete is sprayed on the pit bottom and side of the goaf, shotcrete adopts P.C42.5 grade composite cement, and the quality ratio is 18%-25%; sand adopts medium sand, and the quality ratio is 30%-55%; gravel is hard and durable, the maximum particle size is less than 10 mm, and the quality ratio is 30%-45%; and S4, coal gangue is placed in the treated goaf, and the coal gangue backfill reaches 1.5m-1m below the ground treatment elevation. The method for treating the coal gangue heaps can solvethe problem that a large amount of coal gangue accumulates and occupies land to lead geological disasters; the coal gangue can be effectively avoided to pollute soil, the governance time is short, and the cost is low; and the method for treating the coal gangue heaps is suitable for popularization and application in the coal mine goaf, at the same time, coal gangue transportation is avoided, a lot of costs are saved, and at the same time, the spontaneous combustion of the coal gangue is avoided.
本发明公开了一种处理煤矸石堆物的方法，包括如下步骤：S1、选取煤矿采空稳定区作为煤矸石处理场地；S2、将地面表土剥离0.5m～1.0m，堆置于采空区附近；S3、在采空区坑底及侧面喷射混凝土，喷浆混凝土采用P.C42.5级复合水泥，质量比例为18％～25％；砂子采用中砂，质量比例为30％～55％；碎石采用坚硬、耐久，最大粒径小于10mm，质量比例为30％～45％；S4、将煤矸石置于处理后的采空区中，煤矸石回填达到地面治理标高下1.5m～1m处；本发明，能够解决大量煤矸石堆积占压土地和引起地质灾害的问题；能够有效避免煤矸石污染土壤，治理时间短、成本低；适宜在煤矿采空区推广应用，同时避免煤矸石的运输，节省大量成本，同时避免煤矸石的自燃。
Method for treating coal gangue heaps
一种处理煤矸石堆物的方法
JIN PING (Autor:in) / ZHAO MUJUN (Autor:in) / ZHOU AN (Autor:in) / WU YUYU (Autor:in) / XU LINGJUN (Autor:in) / LIU GUOMOU (Autor:in) / HAO MENG (Autor:in) / SHEN QIANJIN (Autor:in) / ZHENG YUHUI (Autor:in) / CHENG YU (Autor:in)
16.10.2020
Patent
Elektronische Ressource
Chinesisch
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