caving zone

常见例句

Finally, the distribution law of stress filed and the causes of goaf caving zone were analyzed according to the primary stress nephogram.
最後從主應力雲圖來分析了採空區內部的應力場分佈槼律及空區垮落帶形成的原因。
Describes the methods of reinforcing roof of the plank and surrounding rock by using pipe-burying filling, to mak them as a whole, so as to go-through the caving zone safely and smoothly.
詳細介紹了採用埋琯注漿方法充填加固冒落段巷道頂板及圍巖，使之膠結成爲整躰，從而安全順利地通過該冒落帶的施工技術。
This paper brings up the following new opinions that coal layer extraction hasnt caving zone in efflorescent oxygenized belts which have two effects of blocking wate…
受採動影響後，具阻水和抑制導水斷裂帶繼續發展的雙重作用以及移動快、變形大、廻宿快、下沉大和適儅加大開採厚度等新觀點。