earth surface subsidence

基本解釋

The earth's surface subsidence is one of the disasters caused by coal exploitation.
地下開采所引起的地表沉陷災(zāi)害是我國高速公路建設(shè)中所面臨的一個新的課題。
The earth surface subsidence rule in mining coal under special railway line at fully mechanized sub- level caving face 701 of Baojishan mine with finite element method is studied.
采用有限元法研究了寶積山煤礦701綜放工作面專線鐵路下采煤引起的地表沉陷規(guī)律，給出了隨著開采的進(jìn)行地表水平位移、豎向位移的發(fā)展規(guī)律。
During mining, the stress behaviors of workface are very obvious. Thin rock strata of roof fall by full thick, procreant cranny reach the earth's surface and have clearly sidestepped subsidence.
在回采過程中，工作面礦壓顯現(xiàn)比較明顯，頂板基巖沿全厚切落，產(chǎn)生的裂隙通達(dá)地表并有明顯的臺階下沉。