PDF(111 KB)
Theoretical Formula of Elast-plasticity of Strip Coal Pillar ———A Revision
LI De-hai, ZHAO Zhong-ming, LI Dong-sheng
Mining and Metallurgical Engineering ›› 2004, Vol. 24 ›› Issue (3) : 16-17.
PDF(111 KB)
PDF(111 KB)
Theoretical Formula of Elast-plasticity of Strip Coal Pillar ———A Revision
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