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journal1  2014, Vol. 32 Issue (15): 53-57    DOI: 10.3981/j.issn.1000-7857.2014.15.007
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Strata Behaviors Laws Under the Condition of Thick Sandstone Roof Weakening
LI Chunjia1, SHEN Mengfei2,3
1. Xinji No.2 Coal Mine, SDIC Xinji Energy AG, Huainan 232172, China;
2. School of Energy and Safety Engineering, Anhui University of Science and Technology, Huainan 232001, China;
3. Provincial and MOE Joint Key Laboratory of Mine Safety and High Efficient Mining, Anhui University of Science and Technology, Huainan 232001, China

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