The influence of mining floor damage by using porosity of rock mass as the damage variable

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[1] Li, Hailong
[2] Bai, Haibo
[3] Jiao, Yang
[4] Yang, Cheng
来源：
Li, H. (hailongcumt@126.com) | 2013年 / E-Journal of Geotechnical Engineering, 214B Engineering South, Stillwater, OK 74078, United States卷 / 18 C期
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Floors;
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