Utilizing the everlasting headframe might effectively cut down the mine building constructionperiod and had beneficial result and economic results.
利用永久井架凿井可以有效地缩短矿井建设工期。为业主带来良好的社会效益和经济效益。
2
Optimizing the Construction Organization Planning, Decreasing the Tunes of Uncovering Coal Seam, Shortening the Period of MineConstruction.
优化施工组织设计,减少揭煤次数,缩短建井工期。
3
The reasonable term of mining rights value calculation was proposed which was equal to the sum of mining rights service time and basic constructionperiod before mine commissioning.