烧变岩富水特征与采动水量损失预计

发布时间：2018-03-03 13:33

本文选题：烧变岩　切入点：保水采煤　出处：《煤炭学报》2017年01期 　论文类型：期刊论文

【摘要】：烧变岩含水层是榆神府矿区重要的生态水源。为研究采煤引起的烧变岩水量损失和烧变岩水保护问题,分析了烧变岩的分类、分布特征、水力联系和富水特征,运用数值模拟方法预计了采动引起的烧变岩水量损失,提出了烧变岩水"异地储存"的三种途径。研究表明:烧变岩可分为三大类五小类,烧结岩、类熔岩是主要储水载体;烧变岩分布受地形控制,规模受煤厚、出露高度和自燃条件影响,富水性受补给条件、排泄条件和储水条件决定;烧变岩含水层接受上覆含水层的补给,以泉和矿井疏放水的形式进行排泄;模拟得到需要疏放的烧变岩含水层水量和钻孔布设方案。在总结以往保水采煤经验基础上,提出采用水库储水、采空区储水和地表灌溉三种"异地储存"途径来保护利用烧变岩水资源。
[Abstract]:The igneous aquifer is an important ecological water source in Yushenfu mining area. In order to study the water loss of burnt rock and the protection of burnt rock water caused by coal mining, the classification, distribution, hydraulic relation and water-rich characteristics of burnt rock are analyzed. By using numerical simulation method, the water loss caused by mining is predicted, and three ways of "off-site storage" of burnt rock water are put forward. The results show that pyrogeny rock can be divided into three categories and five subclasses, sintered rock and lava are the main water storage carriers. The distribution of igneous rocks is controlled by topography, the scale is affected by the thickness of coal, the height of outburst and the condition of spontaneous combustion, the water enrichment is determined by recharge conditions, discharge conditions and water storage conditions. Discharge is carried out in the form of spring and mine drainage, and the water volume of burning rocks and the arrangement of boreholes which need to be thinned out are simulated. On the basis of summing up the experience of coal mining with water conservation in the past, it is proposed to adopt reservoir water storage. There are three ways of storage in goaf and surface irrigation to protect and utilize burned rock water resources.
【作者单位】：西安科技大学地质与环境学院;陕西煤业化工技术研究院有限责任公司现代煤炭开采技术研究所;
【基金】：国家自然科学基金面上资助项目(41472234) 陕西省社会发展攻关资助项目(2014K13-03)
【分类号】：TD745

【参考文献】