Abstract
Detection of water yield property is one of the most important tasks for mine water control. Because of low reliability of a single water detection method, it is necessary to find an effective water detection system. In this study, we established a circulatory system for water detection (CSWD) and analyzed working principles of each module of the system. The system was then tested in a China coal mine, and the detailed arrangement of the system was discussed. The geophysical detecting results show that there were three abnormal areas with abundant water body (i.e. safe area I, dangerous area II and potentially dangerous area III). The possibility of those areas initiating water hazards varied a lot. The precautionary and danger areas were verified by field drilling. The drilling results indicate that the amounts of water in most holes of areas II and III were large and the largest water amount reached approximately 63 m3/h. Sites occurring of water inrush accorded well with the detection results using the CSWD, indicating that the CSWD is effective and reliable in detecting areas with potential water hazards.
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