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New development in geomechanics measurement and test technology of mine roadway surrounding rook

KANG Hong pu, Lin Jian (Beijing Research Institute of Coal Mining, Central Coal Research Institute, Beijing 100013, China)  
The paper introduced a new development of testing and measuring system of geomechanics which form a complete set with a bolt support of coal roadway,involved a method of test, measuring device and means of data processing. The paper has a summarized application of the system in Lu'an Mining Area.
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