钻凿露天水平孔的大型钻机研制成功董维森（鞍钢矿山研究所）在露天矿生产中随着露天开采不断降深，露天矿出露边坡高度也越来越大，因而边坡稳定性问题也日益突出。一方面，露天矿边坡的各类滑坡事故层出不穷，给露天矿生产和安全造成威胁，另一方面，随着露天矿深度的加... Large drilling rig drilling open-air horizontal hole successfully developed Dong Weisen (Ansteel Institute of Mines) In the open-pit mine production with the deepening of open-pit mining, exposed mine slope height is also increasing, so the slope stability problems Increasingly prominent. On the one hand, various types of landslide incidents in the open pit slope emerge one after another, threatening the production and safety of the open pit mine. On the other hand, as the depth of the open pit mine increases ...