Study on the Application of the New Rock Drifting Technology in Zhangcun Colliery
Based on the main problems of tunneling technology and equipment configuration in the south side main entry of Zhangcun colliery, the mechanized line, support way and cement injection technique were investigated and reformed to solve the problems, then a new tunneling technology in south side main entry was proposed. The practical application result show that using different forms of mechanized tunneling lines can improve the loading and transportation efficiency of rock drift tunneling, correspondingly, improve tunneling speed of rock roadway; the support way and cement injection technique in new technology has a positive effect, create a condition for shortening the time of supporting on working face and cement injection and improve the tunneling speed greatly; with the new technology, the work efficiency improved from 0.88m/worker to 0.2m/worker, and increased by 227%.The project of two main entry driving will be completed in a year, and the ventilation system will be formed a year and a half in advance. According to the annual per capita salary sixty thousand Yuan, it can save labor costs 6.12 million Yuan. The good technology and economic effectiveness will be obtained.
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
L. Ma et al., "Study on the Application of the New Rock Drifting Technology in Zhangcun Colliery", Advanced Materials Research, Vols. 295-297, pp. 631-635, 2011