矿山服务年限

降低供矿品位延长矿山服务年限

Lowering Feeding Ore Grade to Increase Mine Service Life

通过切实加强矿山地质工作，寻找新的矿源，延长了矿山服务年限；

Through strengthening the mine geological work of searching for new mineral source , it has prolonged the mine service life .

矿山服务年限弹性系数的启示

Revelation from the elastic coefficient of service time for the mines

具体措施应包括：加强勘探，延长矿山服务年限；

The measures include : reinforce mine-exploration ;

前言：利用构造控矿原理，采用坑钻相结合的方式，探明新增地质储量，延长矿山服务年限。

Using the principle of " ore deposit is controlled by structure " and through combining of trench with hole , the new geological reserves of ore are detected that prolongs the service life of mine .

因此，及时而有效地回采矿柱，对充分利用国家资源，延长矿山服务年限，提高矿山经济效益，都具有极为重要的意义。

Therefore , the timely and effective manner back to the mining column on the full use of national resources , to extend the service life of mine to improve economic benefit of mine , have extremely important significance .

2003年我区地质勘查工作上了一个新台阶，提交了可供开发的资源量，延长了矿山的服务年限。

Geology and mineral exploration of Xinjiang in 2003 were made into a new step and delivered resource quantity providing for mining and prolonging mines age of service .

通过计算矿山最优服务年限，为收益现值法评估矿产资源资产价值提供科学可靠的折现年限，对大多数矿山企业生产管理具有一定的借鉴意义。

Through calculation of optimum service years , a reliable discount period is obtained which can be used for evaluation of mineral resources through the revenue present value method . The study may be of reference significance to production management of most mining enterprises .

文章提出我国金属矿山“超设计服务年限”，即矿山的“实际服务年限”超过了按照“合理服务年限”原则所确定的“设计服务年限”的那一部分“服务年限”的新概念。

We put forward the new concept of service exceeding life which refers to the difference of the real service life and that of the originally designed for metal ore deposits .