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柳新矿三水平绞车峒室,主峒室长15m,宽9.8m,高7.4m,断面积62.2m~2。原设行为双层料石(石旋)支护,为了施工安全起见大胆改用锚喷支护,仅用48天时间,就顺利地完成了施工任务。从而缩短了工期,减少了掘凿量,降低了支护成本,确保了安全施工。 一、地质条件 三水平暗井绞车峒室底板标高-430m,离地表465m。布置在石盒子组一层煤顶板的砂岩和砂页岩中。峒室的顶板为厚层中粒砂岩,中部为砂页岩互层,底部为厚层中细
Liu Xin mine three level winch 峒 room, main 峒 room length 15m, width 9.8m, height 7.4m, cross-sectional area of 62.2m ~ 2. The original set of double-layer stone material (stone spin) support, for the sake of construction safety bold switch to anchor spray support, only 48 days, successfully completed the construction task. As a result, the construction period is shortened, the digging amount is reduced, the supporting cost is reduced, and the safe construction is ensured. First, the geological conditions Three levels of hidden well winch 底 chamber floor elevation -430m, 465m above the surface. Arranged in the sandstone and sand shale of a coal roof of the Shihezi Formation. The top of the chamber is thick medium-sized sandstone, the middle is sand shale interbed, the bottom is thick and thin