绳锯式坑道掘进法在矿产勘查中的应用前景

地质找矿工作中,常常需要施工大量的坑道,这些坑道的施工一般采用钻爆法,而采用钻爆法施工又存在着诸多的问题,例如:施工安全性差、工人劳动强度大、工人健康危害大、施工速度慢、炸药审批难、炸药管理成本高、废渣破坏环境、废渣不能综合利用、坑道超挖欠挖突出、坑道后期维护成本高、维护难度大、片帮掉块时常发生、需喷浆护壁等。针对上述问题,作者提出了使用绳锯式坑隧道掘进机施工矩形坑道的方案来解决。绳锯式坑隧道掘进机采用锯切法施工工艺,文章主要介绍了其施工方法在地质找矿中的应用及在地质找矿中的突出优势,并简单介绍如何利用绳锯式坑隧道掘进机的优势来对抗探矿风险,优化探、采矿投资结构。

Application prospect of rope-saw tunnelling method in Mineral Exploration

A large amount of tunnels are commonly required during geological prospecting work, of which borehole-blasting method is generally adopted during construction. However, this method produces many problems, such as poor construction safety, heavy labor intensity, great hazard to workers'' health, slow construction speed, difficult approval of explosive material, high cost on managing explosive material, environmental damages from waste residue, incomprehensive utilization of waste residue, prominent overbreak and underbreak of tunnels, high expenditure on later maintenance, big maintenance difficulty, frequent occurrence of sloughing and chip off-falling, requiring concrete-jetting and wall protecting mortar etc.. Therefore, this paper proposes a scheme of using rope-saw tunnelling machine and sawing construction technology to drift rectangular tunnels to solve the above mentioned problems, mainly introduces the application of the construction method on geological exploration and its prominent advantages, and briefly presents how to use the advantages of the machine to prevent prospecting risk, as well as to optimize the investment structure of prospecting and mining.