峰峰煤田某矿突水危险性评价

发布时间：2018-01-14 19:34

本文关键词：峰峰煤田某矿突水危险性评价　出处：《石家庄经济学院》2015年硕士论文　论文类型：学位论文

【摘要】：我国煤炭资源丰富,然而我国煤矿地质、水文地质条件总体十分复杂,煤矿水害是与瓦斯突出、粉尘爆炸、顶板冒裂、火灾等并列的五大灾害之一,其严重程度仅次于瓦斯列第二,近30%的煤炭储量受水害威胁,长期以来,因为煤矿水害而造成的国家和人民生命财产及经济损失极为惨重,这影响了矿井的安全生产,阻碍了我国煤炭业的生产发展。在华北型煤田,由于大青水和奥灰水对大煤的开采都构成威胁,同时随着开采深度的增加,煤层底板所受水压也越来越大,煤矿水害已成为影响煤炭安全生产的重大问题之一,因此对受水害威胁的煤层进行突水评价具有十分重要的现实意义和长远的战略意义。峰峰煤田某矿为安全开采大煤,需要对大煤开采进行突水危险性评价。分析研究区地下水补、径、排规律,为安全开采大煤提供依据;分析煤层底板突水特征,并确定影响煤层底板突水主控因素;采取三种方法进行煤层底板突水危险性评价,重点应用脆弱性指数法提出煤层底板突水脆弱性区划方案;并结合评价结果,对防治煤矿水害发生的措施进行了指导,具有重要的理论与现实意义。。
[Abstract]:China is rich in coal resources, however, the coal mine geology, hydrogeological conditions are very complex, coal mine water hazards and gas outburst, dust explosion, roof crack, fire and so on is one of the five major disasters. Its severity is second only to gas, nearly 30% of the coal reserves are threatened by water disaster. For a long time, the national and people's lives, property and economic losses caused by the coal mine water disaster are extremely heavy. This affects the safe production of coal mine and hinders the development of coal industry in China. In the North China coal field, both Daqing water and Ordovician ash water threaten the mining of big coal, at the same time, with the increase of mining depth. The water pressure on the coal seam floor is increasing, and the coal mine water damage has become one of the major problems affecting the safety of coal production. Therefore, it is of great practical and long-term strategic significance to evaluate the water inrush of the coal seam threatened by water disaster. A certain mine in Fengfeng coalfield is safe to mine large coal. It is necessary to evaluate the risk of water inrush in large coal mining, and to analyze the groundwater replenishment, diameter and discharge regularity in the study area, which provides the basis for safe mining of large coal. The characteristics of water inrush from coal seam floor are analyzed, and the main control factors affecting water inrush from coal seam floor are determined. Three methods were adopted to evaluate the risk of water inrush from coal seam floor, and the vulnerability zoning scheme of coal seam floor water inrush was put forward by using vulnerability index method. Combined with the evaluation results, the measures to prevent and cure coal mine water hazards are guided, which has important theoretical and practical significance.
【学位授予单位】：石家庄经济学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD745

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