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A platform for research: civil engineering, architecture and urbanism
Method for repairing mine by filling coal mine subsidence area and gully region with coal gangue
The invention provides a method for repairing a mine by filling a coal mine subsidence area and a gully region with coal gangue. The method comprises the following steps: processing a pit bottom; building a retaining wall; forming a layer of coal gangue filler; a reinforcing mesh is arranged, and then a layer of coal gangue filler is laid on the reinforcing mesh; a waterproof layer is arranged, and a cement mortar protective layer is arranged on the waterproof layer; forming a two-layer coal gangue filling material, and filling the lower part; coal gangue powder, wasteland soil or saline-alkali soil, plant ash, straw powder, farmyard manure and a microbial agent are mixed to form a three-layer coal gangue filling material, and after the two-layer coal gangue filling material is coagulated, the three-layer filling material and the retaining wall are laid layer by layer and compacted. The mine pit repairing cost is reduced, the filling safety is improved, pollution of coal gangue to underground water resources, soil and the atmosphere is effectively reduced through application of the waterproof layer, and the ecological system is restored.
本发明提供一种利用煤矸石填充煤矿塌陷区和沟壑区修复矿山的方法：处理坑底；修建挡土墙；形成一层煤矸石填充料；设钢筋网片，再将一层煤矸石填充料铺设在钢筋网片上；设置防水层，防水层上设水泥砂浆保护层；形成二层煤矸石填充料，进行下部填充；将煤矸石粉末、荒地土或盐碱地土、草木灰、秸秆粉、农家肥、微生物菌剂混合后形成三层煤矸石填充料，待二层煤矸石填充料凝结后，分层铺设并压实，本发明采用了三层填料结合挡土墙分层对坑洞进行填充，地表下沉得到有效控制，降低了矿坑修复成本，提高充填的安全性，防水层的运用有效的减少煤矸石对地下水资源、土壤和大气的污染，生态系统得以恢复。
Method for repairing mine by filling coal mine subsidence area and gully region with coal gangue
The invention provides a method for repairing a mine by filling a coal mine subsidence area and a gully region with coal gangue. The method comprises the following steps: processing a pit bottom; building a retaining wall; forming a layer of coal gangue filler; a reinforcing mesh is arranged, and then a layer of coal gangue filler is laid on the reinforcing mesh; a waterproof layer is arranged, and a cement mortar protective layer is arranged on the waterproof layer; forming a two-layer coal gangue filling material, and filling the lower part; coal gangue powder, wasteland soil or saline-alkali soil, plant ash, straw powder, farmyard manure and a microbial agent are mixed to form a three-layer coal gangue filling material, and after the two-layer coal gangue filling material is coagulated, the three-layer filling material and the retaining wall are laid layer by layer and compacted. The mine pit repairing cost is reduced, the filling safety is improved, pollution of coal gangue to underground water resources, soil and the atmosphere is effectively reduced through application of the waterproof layer, and the ecological system is restored.
本发明提供一种利用煤矸石填充煤矿塌陷区和沟壑区修复矿山的方法：处理坑底；修建挡土墙；形成一层煤矸石填充料；设钢筋网片，再将一层煤矸石填充料铺设在钢筋网片上；设置防水层，防水层上设水泥砂浆保护层；形成二层煤矸石填充料，进行下部填充；将煤矸石粉末、荒地土或盐碱地土、草木灰、秸秆粉、农家肥、微生物菌剂混合后形成三层煤矸石填充料，待二层煤矸石填充料凝结后，分层铺设并压实，本发明采用了三层填料结合挡土墙分层对坑洞进行填充，地表下沉得到有效控制，降低了矿坑修复成本，提高充填的安全性，防水层的运用有效的减少煤矸石对地下水资源、土壤和大气的污染，生态系统得以恢复。
Method for repairing mine by filling coal mine subsidence area and gully region with coal gangue
一种利用煤矸石填充煤矿塌陷区和沟壑区修复矿山的方法
WANG MING (author) / WANG LI (author) / MU DONGWEI (author) / HU YIMING (author) / GAO NAN (author) / LI ERXIANG (author) / WEI XINING (author) / MAO ZHIYONG (author) / SUN MIAO (author)
2023-05-02
Patent
Electronic Resource
Chinese
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