卸压开采抽采瓦斯理论及煤与瓦斯共采技术体系

Theory of pressure-relieved gas extraction and technique system of integrated coal production and gas extraction

针对低透气性、高吸附性、高瓦斯煤层群安全高效开采技术难题,以淮南矿区为主要试验研究基地,应用岩石力学、岩层移动、"O"形圈、瓦斯流动等理论,研究卸压开采采场内岩层移动及应力场分布规律、裂隙场演化及分布规律、卸压瓦斯富集区及运移规律等科学规律.针对不同煤(岩)层和瓦斯地质条件,探索出卸压开采抽采瓦斯理论,建立了卸压开采抽采瓦斯、煤与瓦斯共采技术体系.创新了低透气性、高瓦斯煤层群安全高效开采矿井设计理论,解决了煤与瓦斯共采重大工程技术难题.

To resolve the problems of safe and high-efficient mining of gassy multi-seam of low permeability and high absorbability, based on the theories of rock mechanics, strata movement, O-type circle and gas movement, and taken Huainan mining area as main research base and studied rock movement and stress field distributing theo- ry, cranny field evolvement and distributing theory, abundant zone of pressure-relieved gas and movement theory. Discovered pressure-relieved mining and gas extraction theory, built the technical system of pressure-relieved gas extraction and integrated coal production and gas extraction for different geological conditions of coal seam （rock strata） and gas. It innovated the mine designing theory for safe and high-efficient mining of gassy multi-seam of low permeability and resolved the technical problem of integrated coal production and gas extraction.