final subsidence meaning in English

最终沉陷

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。
In accordance with the occurrence behavior of roof strata and the fracture characteristics of key stratum in shallow seam longwall mining , studied post - buckling behavior of roof key stratum in the process of mining by using initial post - buckling theory , which derived a critical load and a breaking span of the main roof during the first weighting , determined the final subsidence and the maximum rotation angle for broken key stratum , and presented an application with the example of daliuta 1203 face
摘要根据浅埋煤层顶板岩层的赋存特点和长壁开采时关键层的变形破断特征，应用初始后屈曲理论探讨了开采过程中顶板关键层的后屈曲性态，得出了老顶初次来压时顶板的临界载荷和破断步距，确定了顶板破断后的极限下沉量和回转角，并以神东矿区大柳塔1203工作面为例给出了工程实例。