Effects of coal damage on permeability and gas drainage performance

来源 :矿业科学技术学报:英文版 | 被引量 : 0次 | 上传用户:qhp168
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Coal permeability is a measure of the ability for fluids to flow through coal structures. It is one of the most important parameters affecting the gas drainage performance in underground coal mines. Despite the extensive research conducted on coal permeab
其他文献
暴露到柴油机引擎用尽(DE ) 是在地下的矿的一颗主要担心。它被连接了到心肺的疾病并且作为人的致癌物被分类。这研究的目标是在二个地下的金矿在工人估计 DE 暴露,以比较暴露
期刊
In some of the coalfields in India, coal seams are only developed but no extraction of pillars is possible due to the presence of surface or sub-surface structu
This work was aimed to study the relative floatability of phosphate flotation by means of kinetic analysis.The relative floatability is important to determine h
Spontaneous combustion of coal is a well-known phenomena around the globe.Apart from the coal itself,burning coal-shales is becoming a problem in the South Afri
This paper aims to improve the accuracy and applicability of gas diffusion mathematical models from coal particles. Firstly, a new constitutive model for gas di
Cable bolts are sometimes used in low-seam coal mines to provide support in difficult ground conditions.This paper describes cable bolting solutions at two low-
In order to study pillar and overburden response to retreat mining, a ground control program was conducted at a Central Appalachian Mine. The program consisted
Rockburst represents a very dangerous phenomenon in deep underground mining in unfavourable conditions such as great depth,high horizontal stress,proximity of i
Coal seam destabilization inflicts damage to equipment,causes property loss and personnel casualties,and severely threatens mining safety and efficient producti
High-alkali species in coal are notorious for causing ash slagging and fouling incidents.In this paper,four high-alkali coals were individually subject to hydro