突水点立体图解法识别煤矿顶板突水水源

发布时间：2018-03-24 11:29

本文选题：顶板突水　切入点：突水水源　出处：《采矿与安全工程学报》2017年01期

【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。
[Abstract]:Borehole water inrush is the most true and reliable dynamic disclosure and information carrier of local complex hydrogeological conditions, when the actual disclosure of hydrogeological conditions and the results of exploration is quite different or shows abnormal characteristics different from the regional hydrogeological background. The limited point of water inrush is an important basis for fast and reliable inference of water source and explanation of the cause of water inrush. The three-dimensional graphic method of water inrush point is essentially hydrogeological graphic method. In this paper, the level of limited water inrush point is used. The vertical stereoscopic diagrams infer the water-rich elevation of the roof aquifer in Yuanbao Coal Mine, Shanxi Province, trap the water-rich area of the roof, and identify the water-inrush aquifer. The water source of roof water inrush in Yuanbao coal mine is the conglomerate section at the bottom of Shanxi formation and the middle ~ coarse sandstone aquifer water at the bottom of Shanxi formation and the lower Shihezi formation, and has no direct hydraulic relationship with floor water and Ordovician ash water. The roof water inrush of Yuanbao Coal Mine has reduced the water level from 1 170 m to 1 140 m. The advantage of the stereoscopic graphic method is to make full use of the water inrush information in the well and roadway and to avoid the large-scale hydrological prospecting or test quickly. Reliable identification of sudden water sources.
【作者单位】：中煤集团山西华昱能源有限公司;中国矿业大学资源与地球科学学院;
【基金】：国家重点基础研究发展计划(973)项目(2013CB227900)
【分类号】：TD745

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