新近系含水层下厚煤层综放安全绿色开采及水资源清洁利用
Safe and green mining of thick coal seam under Neogene aquifer and clean utilization of water resources
-
摘要:
煤炭开采在支撑国民经济和社会高质量发展的同时,也对矿区安全、生态环境造成严重影响。为加快推进绿色矿山建设进程,基于安全绿色开采与可持续发展理念,对新近系含水层下采煤的安全性进行了区域划分,提出了将顶板水转化为矿井水的井上、井下联合贯通疏放水及利用技术,解决了松散含水层水害威胁问题,实现了安全高效开采。分析了综放开采地表响应特征,阐明了地表动态演化规律,得到了地表动态移动变形参数;通过对沉陷区破坏程度进行区域划分,以工程复垦与生态复垦相结合的原则,对开采沉陷区实施了土地复垦措施;结合水资源与清洁能源综合利用理念,以全寿命周期理论为基础,建立了矿井供热方式的全寿命周期成本模型,分析研究了合理的矿井热源供应方式。结果表明:疏干排水解放了5.99 Mt的水体下压煤资源,且为覆岩含水层水资源的清洁利用提供了丰富的矿井水余热资源,以不同供热方式的全寿命周期成本进行分析,确定了余热利用是矿井热源供应的最佳方式,具有运行成本少、高效节能、绿色环保等特点,实现了清洁能源的高效利用;同时,以地表移动变形角量参数指导沉陷区土地复垦不仅提高了土地生产力,而且有效改善了矿区生态环境,加快了绿色矿山建设进程。
Abstract:Coal mining not only supports the high-quality development of national economy and society,but also has a serious impact on the safety of water bodies,surface buildings(structures)and ecological environment. In order to accelerate the process of green mine construction,based on the concept of green mining and sustainable development,the safety of coal mining under Neogene aquifer was divided into regions,and the combined up-down well drainage technology to convert roof water into mine water was proposed,which solves the threat of water damage in loose aquifer and realizes safe and efficient mining. Based on the green mining,the surface response characteristics of fully mechanized top coal caving mining were analyzed,the law of surface dynamic evolution was clarified,the surface dynamic movement and deformation parameters were obtained. Through the regional division of the damage degree of the subsidence area,and based on the principle of the combination of engineering and ecological reclamation,the land reclamation measures were implemented in the mining subsidence area. Combined with the concept of water protection and comprehensive utilization of clean energy,based on the whole life cycle theory,the whole life cycle cost model of the mine heating method was established,and the reasonable supply method was analyzed. The results show that the dewatering and drainage not only liberates the coal resources under water of 5.99 Mt,but also provides rich mine water waste heat for the comprehensive utilization of overburden water resource. By analyzing the life cycle cost of different heating modes,it is determined that the waste heat utilization of clean energy is the best way to supply the mine heat,which has the characteristics of low operation cost,high efficiency and energy conservation,green environmental protection and so on,and realizes the efficient utilization of clean energy. Meanwhile,using the surface movement parameter to guide the land reclamation in the subsidence area not only improves the land productivity,but also effectively improves the eco-environment of the mining area,speeds up the construction process of green mines.
-
Keywords:
- thick coal mining /
- Neogene aquifer /
- green mining /
- surface subsidence /
- water utilization
-
-
期刊类型引用(9)
1. 孙旭鹏,李超楠. 瞬变电磁法在煤矿老窑采空区积水探测中的应用. 煤炭技术. 2024(03): 208-212 . 百度学术 2. 魏新,鹿存金,侯小宇,刘安福,柴金城. 基于瞬变电磁的岩溶发育及富水分区特征研究. 能源与环保. 2024(09): 102-109 . 百度学术 3. 朱小伟,丁辰,薛凯喜,陈骏,韩凯敏,罗强,易光胜. 等值反磁通瞬变电磁法在地下浅层富水区应用——以新余市下村镇为例. 物探与化探. 2024(05): 1424-1436 . 百度学术 4. 侯恩科,杨斯亮,苗彦平,车晓阳,杨磊,路波,谢晓深,王慧德,党冰. 基于Bayes判别分析模型的风化基岩富水性预测. 煤矿安全. 2023(01): 180-187 . 百度学术 5. 陈浩国,田忠. 综合物探技术在回采工作面顶板富水探测中的应用. 内蒙古煤炭经济. 2023(01): 1-4 . 百度学术 6. 赵建伟,段春生,高林生. 13103工作面底板富水性综合探测理论及应用. 矿业安全与环保. 2023(02): 103-108 . 百度学术 7. 张光晖. 3D物探技术在地下水环境调查中的运用. 造纸装备及材料. 2023(03): 123-125 . 百度学术 8. 李舒,杨泽元,马雄德,刘胜祖,方楚婧,张奥奇. 神府南区延安组含水层富水性对矿井涌水量的影响研究. 煤田地质与勘探. 2023(06): 92-102 . 百度学术 9. 马宝,陈建华,王兴锋. 瞬变电磁法在煤矿富水性探测中的应用——以神东矿区大柳塔矿井五、六盘区为例. 煤炭科学技术. 2022(S2): 223-230 . 本站查看 其他类型引用(1)
计量
- 文章访问数: 188
- HTML全文浏览量: 5
- PDF下载量: 838
- 被引次数: 10