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A platform for research: civil engineering, architecture and urbanism
Method for water-preserved coal mining under surface reservoir
A method for water-preserved coal mining under an earth surface reservoir comprises the following steps: before coal mining, manually intercepting a dynamic supply river of the reservoir; static water in the reservoir is drained; sampling and analyzing bottom mud at the bottom of the reservoir; the coal face is arranged according to the shape of the reservoir, so that the ground projection range of the coal face arranged underground contains the surface reservoir; coal resources under the reservoir and in the area where the coal pillars should be reserved are extracted, and the spatial position of the coal mining crack area of the reservoir area is recorded; after coal mining, excavating the replaced or retained cohesive soil in the reservoir; grouting is conducted on the cement layer or the bed rock surface; after grouting and standing for set time, brushing an anti-seepage coating on the surface of a grouting body, and carrying out a water seepage experiment in a coal mining crack area; a waterproof gate is installed underground in a goaf formed by coal mining, and the pressure resistance of the gate is larger than a set value; and manual closure is closed, and water is stored in the reservoir again. According to the method, reservoir water resources are protected while mining of coal resources of reservoir area pressing is achieved.
一种用于地表水库下保水采煤的方法，步骤包括：煤炭开采前，对水库的动态补给河流进行人工截流；对水库的静态水进行疏放；对水库底的底泥取样分析；依据水库形状布置采煤工作面，使布置在地下的采煤工作面的地面投影范围内包含地表水库；对水库下及应留设煤柱的区域的煤炭资源进行回采，记录水库区域采煤裂缝区的空间位置；采煤后，开挖水库中置换或保留的黏性土；在水泥层或基岩面上进行灌浆；待灌浆静置至设定时间，在灌浆体表面刷防渗涂料，在采煤裂缝区进行渗水实验；对采煤形成的采空区在井下安装防水闸门，闸门的耐压能力大于设定值；关闭人工截流，对水库重新进行蓄水。本发明实现了对水库区压覆的煤炭资源开采的同时保护了水库水资源。
Method for water-preserved coal mining under surface reservoir
A method for water-preserved coal mining under an earth surface reservoir comprises the following steps: before coal mining, manually intercepting a dynamic supply river of the reservoir; static water in the reservoir is drained; sampling and analyzing bottom mud at the bottom of the reservoir; the coal face is arranged according to the shape of the reservoir, so that the ground projection range of the coal face arranged underground contains the surface reservoir; coal resources under the reservoir and in the area where the coal pillars should be reserved are extracted, and the spatial position of the coal mining crack area of the reservoir area is recorded; after coal mining, excavating the replaced or retained cohesive soil in the reservoir; grouting is conducted on the cement layer or the bed rock surface; after grouting and standing for set time, brushing an anti-seepage coating on the surface of a grouting body, and carrying out a water seepage experiment in a coal mining crack area; a waterproof gate is installed underground in a goaf formed by coal mining, and the pressure resistance of the gate is larger than a set value; and manual closure is closed, and water is stored in the reservoir again. According to the method, reservoir water resources are protected while mining of coal resources of reservoir area pressing is achieved.
一种用于地表水库下保水采煤的方法，步骤包括：煤炭开采前，对水库的动态补给河流进行人工截流；对水库的静态水进行疏放；对水库底的底泥取样分析；依据水库形状布置采煤工作面，使布置在地下的采煤工作面的地面投影范围内包含地表水库；对水库下及应留设煤柱的区域的煤炭资源进行回采，记录水库区域采煤裂缝区的空间位置；采煤后，开挖水库中置换或保留的黏性土；在水泥层或基岩面上进行灌浆；待灌浆静置至设定时间，在灌浆体表面刷防渗涂料，在采煤裂缝区进行渗水实验；对采煤形成的采空区在井下安装防水闸门，闸门的耐压能力大于设定值；关闭人工截流，对水库重新进行蓄水。本发明实现了对水库区压覆的煤炭资源开采的同时保护了水库水资源。
Method for water-preserved coal mining under surface reservoir
一种用于地表水库下保水采煤的方法
FAN LIMIN (author) / WU QIANG (author) / LI TAO (author) / SUN KUI (author) / ZENG YIFAN (author) / GAO YING (author) / JIANG ZEQUAN (author) / MA LIQIANG (author) / JI RUIJUN (author)
2024-12-27
Patent
Electronic Resource
Chinese
Engineering Index Backfile | 1884
Water Reservoir Control with Data Mining
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