顶板导水裂缝带多段封堵同步测漏系统与应用

发布时间：2018-05-12 18:49

本文选题：导水裂缝带 + 多段封堵　；参考：《应用基础与工程科学学报》2017年03期

【摘要】：针对工作面回采后覆岩导水裂缝带发育高度探测难题,为掌握地下开采引起的岩层移动规律和确定导水裂缝带高度参数,研制了顶板导水裂缝带多段封堵同步测漏系统,并详细介绍系统的主要结构、功能和操作步骤.该系统主要包括探测子系统、封堵子系统、供给子系统和推进子系统,实现了顶板钻孔多探测单元、任意角度、同步精准连续测量,且与普通注水系统相比,该系统中测试探头移动次数减少了2/3.以新宏煤矿21010工作面开采条件为工程背景,在理论预计和数值模拟的基础上,将该系统运用到实际工程中.顶板导水裂缝带高度理论预计结果为40.25m,数值模拟结果为36.87m,而现场实测结果为38.50m.结果表明系统测量结果准确,观测过程高效.顶板导水裂缝带多段封堵同步测漏系统的研制和应用,不仅成倍减少工作量,而且实现连续精准测量,丰富了导高现场观测手段,对预防矿井突水灾害具有重要的实用价值.
[Abstract]:In view of the difficult problem of detecting the height of overburden water-conducting fracture zone after mining, in order to master the movement law of rock stratum caused by underground mining and determine the height parameter of water-conducting fracture zone, a multi-section plugging and leak detection system for roof water-conducting fracture zone is developed. The main structure, function and operation steps of the system are introduced in detail. The system mainly includes detection subsystem, plugging subsystem, supply subsystem and propulsion subsystem. It realizes multi-detection unit of roof drilling, synchronous accurate and continuous measurement at any angle, and compared with common water injection system. In this system, the number of times the probe has been tested has been reduced by 2 / 3. Taking the mining condition of No. 21010 working face in Xinhong Coal Mine as the engineering background, the system is applied to practical engineering on the basis of theoretical prediction and numerical simulation. The predicted height of roof water conduction fracture zone is 40.25m, the numerical simulation result is 36.87m, and the field measured result is 38.50m. The results show that the measurement results are accurate and the observation process is efficient. The development and application of multi-section plugging simultaneous leak detection system in roof water conduction fracture zone not only reduces the workload by times, but also realizes continuous accurate measurement, which enriches the field observation means of guiding height, and has important practical value for preventing mine water inrush disaster.
【作者单位】：山东科技大学矿山灾害预防控制国家重点实验室;
【基金】：国家自然科学基金项目(51274135) 国家“863”高技术研究发展计划资助项目(2015AA016404-4)
【分类号】：TD745

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