遥感技术在探查峰峰矿区奥灰水中的应用

APPLICATION OF REMOTE SENSING TECHNIQUE TO DETECTION OF ORDOVICIAN KARST WATER IN FENGFENG MINE AREA

峰峰矿区位于太行山东麓中段,长期受奥灰水威胁,根据几十年生产实践和科学试验认为,强迳流带与进水口位置在防治水中具有重要意义。为解决这一技术难题,将遥感技术由过去小比例尺大范围普查转向大比例尺矿区详查,由浅层水进而对深层奥灰水进行了探索性研究。除确定王风矿石臼河渗漏段外,主要对深层奥灰水信息方面取得了重大进展:(1)奥灰水的富集程度受新构造运动控制,并与地形地貌、奥灰埋藏深度有着密切关系;(2)上部地形地貌、浅层水及河流水系的综合影象特征反映了奥灰水的相关信息。根据相关信息圈定矿区奥灰水强迳流带和进水口位置,经与钻孔单位涌水量、水位和水温观测资料对比均得到了证实,这一方法对我国北方岩溶水探查具有实践和经济意义。

Fengfeng mine area located in the middle of east foot of Taihang Mountains, has been threatened by heavy Ordovician Karst water for a long time. According to practical experience and scientific experiments in the past decades, it is considered that strong ground water runoff zones and the position of water intake are of significant importance in prevention and control of mine water. To solve this difficult problem, we have changed the remote sensing technique from general investigation of a large area in small scale into detailed investigation of a mine area inlarge scale, and made exploratory survey of groundwater at shallow places and Ordovician Karst water at depths. In the research except that the seepage section of Shijiuhe River was determined, information about Ordovician water was obtained.They are: (1)Richness of water is controlled by neotectonic movement and has close relation with topography and depth of aquifer; (2)Comprehensive image features of topography, shallow groundwater and river drainage reflected the correlative information. The strong groundwater runoff zones and positions of water intake determined on the basis of the correlative information were proved by comparing with the unit inflow of borehole, groundwater level and temperature. This method will be of great significance in probing Karst water in North China.