在综采放顶煤工作面顺槽掘进过程中，由于顺槽煤层顶板松动破碎，并且顺槽采用矩形断面，顶板跨距较大，不利于巷道支护。
During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span.
通过对掘进巷道超前支护的改进，改变了掘进头的安全状况，有效地降低了掘进工作面安全事故的发生。
By improving the fore support for heading faces, the safer condition of heading faces will become available, reduces the possibilities of accidents in heading faces.
本文介绍煤矿井下掘进巷道锚杆支护工作面用于临时超前支护的一种可调配比式轻型乳化液泵站。
The paper introduces an adjustable compounding light-duty emulsion pump station used for temporary fore support at the roof-bolt face of underground heading roadway.
同时，实施锚网索耦合支护的深部回采巷道能够满足巷道掘进与工作面回采期间的稳定性控制要求。
The gateway with bolt-net-anchor coupling support can meet the requirements of the stability control during gateway excavation and coal extraction.
地下水渗流导致巷道掘进工作面突水或成巷段支护失效的灾害在煤矿时有发生。
Water inrush in working face and support failure of the driven roadway caused by underground seepage occur from time to time.
地下水渗流导致巷道掘进工作面突水或成巷段支护失效的灾害在煤矿时有发生。
Water inrush in working face and support failure of the driven roadway caused by underground seepage occur from time to time.
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