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我院与徐州矿务局合作进行的“徐州矿区东部夏桥系回采巷道矿压显现规律和支护改革”的研究课题,在江苏省煤炭总公司的主持下,于84年1月5—7日经来自全国有关局矿,科研院、所,大专院校等100多位代表评议,通过鉴定。与会同志听取了技术报告,并对可缩性方环形和长环形支架的井下工业性试验及加工情况进行了检查。认为该项研究,巷道矿压观测内容丰富,手段多样,基本掌握了有关地区回采巷道矿压显现规律。从而得出底臌量占顶底板移近量的70～90％;围岩内部的强烈活动区
Xuzhou Mining Bureau and our hospital in cooperation with the “Xuzhou Mining East Summer Bridge Department Roadway mining pressure appears regularity and support reform” research project, under the auspices of Jiangsu Province Coal Corporation, in January 84 5-7 Nikkei from the relevant Bureau of the mine, research institutes, colleges and universities, more than 100 delegates comment, passed the appraisal. The attending delegates listened to the technical report and examined downhole industrial testing and processing of shrinkable square and long ring brackets. It is considered that the study shows that the observation of rock pressure in roadway is rich in content and diversified in means, basically grasping the law of occurrence of underground pressure in mining roadway. Resulting in the amount of the end of the amount of floor top floor nearly 70 ~ 90%; strong active area within the rock