突水点立体图解法识别煤矿顶板突水水源  

Inrush-accidents-oriented graphic method to identify the sources of water-inrush from coal-seam roof strata

作　　者：关文华 王长申[2] 王善良 朱奎[2] 董贵明[2] 

机构地区：[1]中煤集团山西华昱能源有限公司,山西朔州036900 [2]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《采矿与安全工程学报》2017年第1期108-113,133,共7页Journal of Mining & Safety Engineering

基　　金：国家重点基础研究发展计划(973)项目(2013CB227900)

摘　　要：井巷突水点是局部复杂水文地质条件最真实、可靠的动态揭露和信息载体;当实际揭露水文地质条件与勘查结果差异较大或表现出不同于区域水文地质背景的异常特征时,有限的突水点是快速、可靠推断突水源和解释突水原因重要依据。突水点立体图解法实质为水文地质图解法。本文利用有限突水点的水平、垂直方向立体图解推测山西元堡煤矿顶板含水层富水标高、圈闭顶板富水区、识别突水含水层、揭示顶板意外突水原因。元堡煤矿顶板水突水源为井田北西单斜贮水构造山西组底部砾岩段和下石盒子组底部中~粗砂岩含水层水,与底板水及奥灰水无直接水力联系,具有可疏性;元堡煤矿顶板突水已经将富水标高由+1 170 m降至+1 140 m。立体图解法的优点是充分利用井巷突水信息,在来不及或避免大规模水文补勘或试验的条件下快速、可靠识别突水源。Occurrence of water-inrushes is actually the real-time and reliable exposure of locally com- plicated hydrogeologic conditions of a coal mine. In the case of the actual hydrogeologic conditions be- ing different from its earlier prospecting results or abnormal from its regional background, the charac- teristics of water-inrush may rise to indispensable evidences for quick judging the reasons of an unan- ticipated mine water accident or disaster. The inrush-accidents-oriented graphic method for identifying the sources of water-inrush is actually a kind of hydrogeologic graphing. Based on the limited informa- tion of unexpected water-inrush from roof strata at Yuanbu coal mine, Youyu （Shanxi, China）, this arti- cle developed a set of vertical and lateral illustrations to identify the source aquifers, infer the water level of the source aquifers and analyze the reasons of inrush accident. It can be concluded that the sources of water-inrush are the overlying fractured conglomerate aquifers of the early Permian Shanxi Formation and medium-to-coarse sandstone aquifers of the medium Permian Shihezi Formation, the source aquifers get no direct recharge from the underlying aquifers and regional Ordovician karst aqui- fers, and the occurrence of water inrush has dewatered the water level of source aquifers from ＋1170 m down to ＋1140 m. The obvious advantage of the inrush-accidents-oriented graphic method is that it doesn＇t excessively depend on detailed or fiLrther hydrogeologic tests or prospecting work but uses only limited inrush information to quickly and effectively judge the water sources of inrush accident at a coal mine.

关 键 词：顶板突水 突水水源 突水点立体图解法 

分 类 号：TD325[矿业工程—矿井建设]