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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。
Waterhole inrush point is the most realistic and reliable dynamic disclosure and information carrier of local complex hydrogeological conditions. When actual differences between hydrogeological conditions and exploration results are large or show abnormal features different from regional hydrogeological background, the limited Water inrush point is a fast, reliable inference source of water inrush and explain the reason of water inrush. Water inrush point three-dimensional graphic method is essentially hydro-graphic method. In this paper, the water level elevation of roof aquifers in Yuanbao coal mine in Shanxi Province is deduced from the horizontal and vertical directions of the limited water bursting point, and the water-rich area of the roof is trapped to identify the inrush aquifers and reveal the reason of the accidental water inrush from the roof. Yuanbao coal mine roof water inrush source for the minefield northwest monocline reservoir structure of the bottom of the conglomerate section and the Lower Shihezi group bottom ~ coarse sandstone aquifer water, and the floor water and Ordovician gray water has no direct hydraulic connection, with sparse The water inrush of Yuanbao Coal Mine roof has been reduced from +1 170 m to +1 140 m. The advantage of stereotaxy is that it makes full use of the information of water inrush in the shaft and quickly and reliably identify inrush water under the condition of too late or avoiding large-scale hydrological complementation or experiment.