长期以来,天井掘进是矿山的一个薄弱环节。过去一直沿用木支撑法进行天井掘进,此法工效低、劳动强度大、木材耗量高(为0.35米~3/米),又不安全。我局矿山天井的年掘进量高达四千多米,其中大部分是倾斜天井,过去曾应用过吊罐掘进法,该法虽然简便易行,但对斜天井、高天井、盲天井则不适用,它既不安全,又受深孔钻凿能力和精确度的限制,更适应不了随矿体变化的天井掘进。因此,当前改进天井掘进方法是我们一直急待解决的课题。 1980年,我们对酒钢镜铁山矿使用的瑞 Passage excavation has long been a weak link in mines. In the past, the timber support method has been used for tunnel boring. This method is inefficient, labor-intensive and consumes high amounts of wood (0.35m3 / m) and is unsafe. Our Bureau of Mine Passage has an annual capacity of more than 4,000 meters a year. Most of them are inclined patios. In the past, the tunneling method was applied. Although this method is simple and convenient, it is not suitable for inclined patios, high patios and blind patios , It is not safe, but also by the deep hole drilling capacity and accuracy of the restrictions, but also to adapt to changes in the ore with the tunnel. Therefore, the current method of improving the tunneling is an issue that we have to solve urgently. In 1980, we use the Swiss iron ore Jieshi Mine