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Equivalent materials simulation experimental study on bed separations developing and mining subsidence in constant humidity and constant temperature conditions |
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| Authors: | Zhi-liang Fu Su-hua Wang Yan-fa Gao |
| Affiliation: | (1) School of Resources Development & Managment Engineering, Anhui University of Science & Technology, Huainan, 232001, China;(2) College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266510, China;(3) Geotechnical mechanics Research Center, China University of Mining & Technology, Beijing, 100083, China;(4) College of Hydraulic and Civil Engineering, Shandong Agricultural University, Tai’an, 271018, China |
| Abstract: | A new experiment was made on the developing of bed separations and mining subsidence from Tangshan T2192 working face by equivalent materials simulation. The overburden deformation and the developing of bed separations with working face advancing was simulated by a new model. The results show that the maximum value of bed separations moved forward gradually along with the working face advancing; the maximum value of bed separations is 0.31∼0.50 times of mining thickness. The key strata have a great influence upon surface subsidence during the overburden movement process. The mechanics parameters of new experiment are fitted with results in fields perfectly. Supported by The National Natural Science Funds Committee(50174035) |
| Keywords: | subsidence bed separations constant humidity constant temperature equivalent simulation experiment |
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