頂板初次來壓 的英文怎麼說

中文拼音 [dǐngbǎnchūlāi]
頂板初次來壓 英文
firstweight
  • : i 名詞(人體或物體的最上部) crown; peak; top Ⅱ動詞1 (用頭支承) carry on the head 2 (從下面拱...
  • : Ⅰ名詞1 (片狀硬物體) board; plank; plate 2 (專指店鋪的門板) shutter 3 [音樂] (打拍子的樂器) ...
  • : Ⅰ名詞1 (開始的部分) at the beginning of; in the early part of 2 (姓氏) a surname Ⅱ助詞(附著...
  • : Ⅰ名詞1 (次序; 等第) order; sequence 2 [書面語] (出外遠行時停留的處所) stopping place on a jou...
  • : 來動詞1 (從別的地方到說話人所在的地方) come; arrive 2 (發生; 來到) crop up; take place; come ...
  • : 壓構詞成分。
  1. 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

    摘要根據淺埋煤層巖層的賦存特點和長壁開采時關鍵層的變形破斷特徵,應用始后屈曲理論探討了開采過程中關鍵層的后屈曲性態,得出了老的臨界載荷和破斷步距,確定了破斷后的極限下沉量和回轉角,並以神東礦區大柳塔1203工作面為例給出了工程實例。
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