毕业设计 梧桐庄煤矿瓦斯突出危险性评估.doc

河南理工大学本科毕业设计 河南理工大学本科毕业论文 PAGE 24 PAGE 69 河南理工大学本科毕业论文 摘要 梧桐庄煤矿瓦斯突出危险性评估 摘要：基于低瓦斯矿井也可能发生瓦斯突出事故。低瓦斯矿井在井田勘探时对煤层瓦斯的研究程度较低。矿井生产初期瓦斯涌出量一般很小 , 构不成对安全生产的威胁。随着开发强度和深度的加大 , 矿井瓦斯涌出量有所增大。尤其是在采掘工作面通过构造和煤层等地质条件变化较大的地段时，偶而会发生瓦斯异常涌出 , 甚至造成瓦斯局部聚积。因此，进一步认识煤层瓦斯赋存规律和矿井瓦斯涌出特点 , 对杜绝事故隐患、提高低瓦斯矿井瓦斯防治的针对性和科学性具有重要意义 关键词：梧桐庄 低瓦斯 危险性 评估 WuTongZhuang coal mine gas outburst risk assessment Abstract: Based on low-gas coal mine gas outburst accident could happen. Low-gas coal mine when the mine field exploration of coal seam gas less. Gas emission in the early mine production is generally small, did not constitute a threat to the safety in production. With the development of strength and depth of the increase, mine gas emission has increased. Especially in the construction and coal mining face through the changes in geological conditions such as larger lots, the occasional occurrence of unusual gas emission will even cause the local accumulation of gas. Therefore, further understanding of coal mine methane gas emission laws and occurrence characteristics, to prevent potential accidents, improve prevention and treatment of low-gas coal mine gas is important for the scientific Keywords:WuTongZhuang Low-gas Risk Assessment 目录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc264124969 前言  PAGEREF _Toc264124969 \h 1  HYPERLINK \l _Toc264124970 1、矿井概况  PAGEREF _Toc264124970 \h 3  HYPERLINK \l _Toc264124971 1.1 矿井位置及范围  PAGEREF _Toc264124971 \h 3  HYPERLINK \l _Toc264124972 1.2 矿井开采基本概况  PAGEREF _Toc264124972 \h 4  HYPERLINK \l _Toc264124973 1.3. 矿井地质概况  PAGEREF _Toc264124973 \h 5  HYPERLINK \l _Toc264124974 1.3.1煤层  PAGEREF _Toc264124974 \h 5  HYPERLINK \l _Toc264124975 1.3.2煤质  PAGEREF _Toc264124975 \h 7  HYPERLINK \l _Toc264124976 1.4 水文地质  PAGEREF _Toc264124976 \h 8  HYPERLINK \l _Toc264124977 1.5 矿井通风与瓦斯：  PAGEREF _Toc264124977 \h 9  HYPERLINK \l _Toc264124978 1.5.1 矿井通风  PAGEREF _Toc264124978 \h 9