The 110 mining method is a high-efficiency entry-retaining technology without coal pillars or filling materials. At present, there no precedent for its application in the Huaneng Group. In order to introduce this technology, it planned carry out experimental research Yuwang NO.1 Coal Mine of Diandong area. typical and gas outburst mine with seam group. view introduction under these conditions, ...

The height of the water-conducting fractured zone (WCFZ) is a basic parameter related to water protection in coal mines and also crucial for aquifer mine safety. In order accurately detect shape reveal formation mechanism WCFZ, which caused by middle-deep seam mining sandy region, 112201 coalface at 1# Xiaobaodang was taken as case study. Filed measurements including fluid leakage, borehole TV,...

Social harmony problems are being existed in social system, which is an open giant complex system. For solving such kind of problems the Metasynthesis system approach proposed by Qian XS et al will be applied. In this approach the data, information, knowledge, model, experience and wisdom should be integrated and synthesized. Data mining, text mining and web mining are good techniques for using...

Amankwah, H. (2011). Mathematical Optimization Models and Methods for Open-Pit Mining. Doctoral dissertation. ISBN 978-91-7393-073-4. ISSN 0345-7524. Open-pit mining is an operation in which blocks from the ground are dug to extract the ore contained in them, and in this process a deeper and deeper pit is formed until the mining operation ends. Mining is often a highly complex industrial operat...

optimization of the exploitation operation is one of the most important issues facing the mining engineers. since several technical and economic parameters depend on the cut-off grade, optimization of this parameter is of particular importance. the aim of this optimization is to maximize the net present value (npv). since the objective function of this problem is non-linear, three methods can b...

open-pit production scheduling (opps) problem focuses on determining a block sequencing and scheduling to maximize net present value (npv) of the venture under constraints. the scheduling model is critically sensitive to the economic value volatility of block, block weight, and operational capacity. in order to deal with the opps uncertainties, various approaches can be recommended. robust opti...

Conditions in the mining industry have diverged significantly in recent years from those in the rest of the economy. In particular, after several years of strong performance in the mid 1990s, the industry entered a sharp downturn in the wake of the Asian economic crisis, stemming from weaker external demand and lower commodity prices. One consequence of this has been a steep cut-back in mining ...

Data mining models often carry the final objective of maximizing profit or minimizing cost. This problem becomes even more profound in financial applications that can have multiple constraints, such as interest rate, score cut-off, and the loan amount to allocate. In this paper, we present a pricing framework for discovering the total profit from a probabilistic model, given a benefit function.