面向绿色矿山的注浆关键技术与工程示范  

Key grouting technology and engineering demonstration for green mines

作　　者：杜金龙 潘树仁[2] 刘长友[3] 魏云迅 鲁岩[3] 潘海洋 齐宽 赵明 刘厚松 姚宏鑫 周瑶 晏嘉 李世念 张彪 张丝诺 Du Jinlong;Pan Shuren;Liu Changyou;Wei Yunxun;Lu Yan;Pan Haiyang;Qi Kuan;Zhao Ming;Liu Housong;Yao Hongxin;Zhou Yao;Yan Jia;Li Shinian;Zhang Biao;Zhang Sinuo(CNACG Ecological Environment Technology Co.,Ltd.,Beijing 100070,China;China National Administration of Coal Geology,Beijing 100038,China;School of Mines,China University of Mining&Technology,Xuzhou Jiangsu 221116,China;General Prospecting Institute of China National Administration of Coal Geology,Beijing 100039,China;Jiangsu Design Institute of Geology for Mineral Resources,Xuzhou Jiangsu 221006,China;China Coal Geology Group Co.,Ltd.,Beijing 100040,China)

机构地区：[1]中煤地生态环境科技有限公司,北京100070 [2]中国煤炭地质总局,北京100038 [3]中国矿业大学矿业工程学院,江苏徐州221116 [4]中国煤炭地质总局勘查研究总院,北京100039 [5]江苏地质矿产设计研究院,江苏徐州221006 [6]中煤地质集团有限公司,北京100040

出　　处：《矿业科学学报》2023年第3期293-307,共15页Journal of Mining Science and Technology

基　　金：国家自然科学基金(52074267);中国煤炭地质总局科技专项(ZMKJ-2017-01,ZMKJ-2018-02,ZMKJ-2022-JBGS01-1)。

摘　　要：针对地表塌陷、水资源破坏、煤基固废堆积等问题,系统性提出了煤炭绿色开采“减沉、增载、处废、控水”一体化的多元耦合注浆技术体系,并成功示范。具体内容有:(1)综合利用理论分析、数值模拟、现场探测(钻探、超声成像、井下电视、光纤监测)等手段,研究了采动空隙空间与原生裂隙空间发育演化规律,尤其是将分布式光纤技术应用于离层空间探测,实现了注浆空间的精准识别。(2)利用煤基固废(煤矸石、粉煤灰)等制备了应用于不同场景的多源无机高性能注浆材料,将煤矸石作为离层注浆材料实现了规模化处置,同时研发了具有水下抗分散性、高体积系数、高塑性强度的新型KEP注浆堵水材料。(3)将丛式井技术运用到离层注浆孔钻探施工,有效规避采动超前破坏;集成研制了全天候、高泵压、大流量智能化注浆系统;应用补强注浆工艺,强化注浆减沉效果。(4)提出了注浆效果监测检测技术体系,重点阐述了钻探取芯与测井相结合的钻孔检测方法。(5)形成了以离层注浆减沉处废、垮落带注浆处废、老空区注浆增载处废和顶板裂隙注浆控水为核心的智能化技术体系,并在夏店煤矿、新浦磷矿、曹家滩煤矿、高家堡煤矿进行了工程示范,为我国绿色矿山建设提供了新思路。This study proposed the multi-coupling grouting system with the aim to tackle green mine problems such as surface collapse,water resources destruction and coal based solid waste accumulation.Successfully applied,this system yielded the following major achievements:this study(1)probed into the patterns of development and evolution in mining separation space and primary fracture space,and conducted the intelligent identification of grouting space by means of theoretical analysis,physical and numerical simulation and field detection.(2)prepared multi-source inorganic high-performance grouting materials for different scenarios by using coal-based solid wastes(coal gangue,fly ash),and developed a new KEP grouting material with underwater dispersion resistance,high volume coefficient and high plastic strength.(3)applied cluster well and feather well to grouting hole drilling and and developed an all-weather,high pump pressure and large flow intelligent grouting system;The reinforcement grouting technology is applied for the first time to strengthen the effect of grouting to reduce settlement.(4)put forward the technology system of grouting effect monitoring and detection,and emphatically expounded the borehole detection method of combining drilling core and well logging.(5)formed an intelligent technology system based on the methods of separation space grouting to reduce settlement and treat waste,caving zone grouting to treat waste,goaf grouting to strengthen foundation bearing capacity and treat waste,and roof fissure grouting to control water gushing as the core.Engineering demonstrations of this system have been carried out in Xiadian coal mine,Xinpu phosphate mine,Caojiatan coal mine,Gaojiabao coal mine and other places,which yielded good results.

关 键 词：绿色矿山 多元耦合 智能化 注浆关键技术 工程示范 

分 类 号：TD353[矿业工程—矿井建设]