摘要
作者介绍了用井下仰孔探测水体下采煤导水裂缝带高度,在井下应用观测的全过程,对比分析了观测结果。
It is necessary to drill holes from surface to gob, and to observe consumption of flushing fluid while coal mining under water bodies; when coal mining under a big area of water bodies it is necessary always to drive a special observation roadway which costs a lot money because of difficut drilling from surface. The observation roadwsy is located above gob and observation hole for measuring consumption of flushing fluid. New method, prospecting water flowing fracture zone with underground upper, has been succesfully tested by Shuanggoukuang coal mine of Zibo Coal Bureau and Shandong mining College. The new method has advantages of less amount of engineering and accurate, reliable observation results.
The paper presents structure and principle of the observation device; speciality, whole underground observation process; analysis of observation results and contrast among the observation sesults.
出处
《煤炭科学技术》
CAS
北大核心
1991年第10期4-8,共5页
Coal Science and Technology
