It is pointed that the thick unconsolidated layers above roof have effect on post-buckling behaviors of key stratum, the equilibrium path of roof is unstable from breaking to final subsidence.
It is pointed that the thick unconsolidated layers above roof have effect on post-buckling behaviors of key stratum, the equilibrium path of roof is unstable from breaking to final subsidence.
研究发现，顶板上覆厚松散沙层对关键层的后屈曲性态有影响；顶板从破断至极限下沉其平衡路径不稳定。