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A platform for research: civil engineering, architecture and urbanism
Coal mine airtight wall and construction method thereof
The invention provides a coal mine airtight wall. The coal mine airtight wall comprises a wall body (1), a metal net layer (4) and an isolation layer (6). The wall body is formed by lining gangue (2),and gaps between the gangue are filled with a filler composition (3). The filler composition comprises alkali metal silicate, filler, water and a modifier; the alkali metal silicate is water glass; the filler is an inorganic filler and is finely divided, and the average particle size of the filler is less than 200 microns; and the modifier acts to render the composition insensitive to moisture, and is a water-soluble or water-dispersible acrylic polymer or copolymer having an average molecular weight of at least about 10,000. The filler composition for the airtight wall can be conveniently transported to a construction site and filled into the sealed gaps, and the non-toxic and non-volatile water-based filler composition is dried quickly, and is immediately sealed after being used to prevent air leakage, so that the airtight wall is tightly sealed.
本发明提供了一种煤矿用密闭墙，所述密闭墙包括墙体(1)、金属网层(4)和隔离层(6)，所述墙体由矸石(2)衬砌而成，所述矸石之间的缝隙中填充填料组合物(3)；所述填料组合物包括碱金属硅酸盐、填料、水和改性剂；所述碱金属硅酸盐为水玻璃；所述填料为无机填料，且经精细分割，其平均粒径小于200微米；所述改性剂作用是使组合物对水分不敏感，所述改性剂是平均分子量至少约10000的水溶性或水分散性丙烯酸聚合物或共聚物。该密闭墙所用填料组合物便于方便地运到施工现场并充入被密封的空隙中，且无毒、不挥发的水基填料组合物干燥迅速，使用后立即密封防止漏气，从而使得密封墙密封严实。
Coal mine airtight wall and construction method thereof
The invention provides a coal mine airtight wall. The coal mine airtight wall comprises a wall body (1), a metal net layer (4) and an isolation layer (6). The wall body is formed by lining gangue (2),and gaps between the gangue are filled with a filler composition (3). The filler composition comprises alkali metal silicate, filler, water and a modifier; the alkali metal silicate is water glass; the filler is an inorganic filler and is finely divided, and the average particle size of the filler is less than 200 microns; and the modifier acts to render the composition insensitive to moisture, and is a water-soluble or water-dispersible acrylic polymer or copolymer having an average molecular weight of at least about 10,000. The filler composition for the airtight wall can be conveniently transported to a construction site and filled into the sealed gaps, and the non-toxic and non-volatile water-based filler composition is dried quickly, and is immediately sealed after being used to prevent air leakage, so that the airtight wall is tightly sealed.
本发明提供了一种煤矿用密闭墙，所述密闭墙包括墙体(1)、金属网层(4)和隔离层(6)，所述墙体由矸石(2)衬砌而成，所述矸石之间的缝隙中填充填料组合物(3)；所述填料组合物包括碱金属硅酸盐、填料、水和改性剂；所述碱金属硅酸盐为水玻璃；所述填料为无机填料，且经精细分割，其平均粒径小于200微米；所述改性剂作用是使组合物对水分不敏感，所述改性剂是平均分子量至少约10000的水溶性或水分散性丙烯酸聚合物或共聚物。该密闭墙所用填料组合物便于方便地运到施工现场并充入被密封的空隙中，且无毒、不挥发的水基填料组合物干燥迅速，使用后立即密封防止漏气，从而使得密封墙密封严实。
Coal mine airtight wall and construction method thereof
一种煤矿用密闭墙及其构建方法
2021-01-15
Patent
Electronic Resource
Chinese
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