roof strata 中文意思是什麼
roof strata
解釋
頂板巖層-
Analysis on strata pressure of fully mechanized longwall coal mining face in soft roof, soft coal and soft floor seam
三軟煤層綜采長壁工作面采場礦壓分析 -
Influence of high - span ratio on stability of layered strata roof
高跨比對層狀頂板穩定性的影響 -
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
摘要根據淺埋煤層頂板巖層的賦存特點和長壁開采時關鍵層的變形破斷特徵，應用初始后屈曲理論探討了開采過程中頂板關鍵層的后屈曲性態，得出了老頂初次來壓時頂板的臨界載荷和破斷步距，確定了頂板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。 -
Abstract : the experiment mechanism of strata around roadways is analyzed with the procedure simulation of resemble, combined with the deformation characteristics of roadway in coal mine. the resemble simulation experiment on procedure for the failure of soft laminate roof have been finished according to the result of experiment and computer simulation, and the results influencing on the practical project are analyzed
文摘:對模擬實驗原理進行了闡述，結合現場實際破壞特徵，對軟弱層狀巖石巷道的破壞過程進行了相似模擬實驗，根據試驗結果和計算機模擬結果，對其破壞過程進行了分析，對現場施工具有指導意義 -
The development and application of new - type detector of roadway roof strata structure
新型巷道頂板巖層結構探測儀的研製和應用 -
The results indicate that the stability for bifurcation point equilibrium configuration and post - buckling equilibrium path of roof strata can be revealed and an effective method for determining displacement field of imperfection structure can be provided by using initial post - buckling theory
應用初始后屈曲理論可揭示淺埋煤層長壁開采頂板巖層的分叉點平衡構形及后屈曲平衡路徑的穩定性，是確定非完善結構位移場的一種有效方法。 -
Similar materials simulation of moving laws analysis on roof strata with sublevel caving mining
綜放開采上覆巖層運動規律相似材料模擬分析 -
Collapse characteristics research on roof rock strata with 3dec in full - mechanized caving mining
焦作礦區煤層瓦斯合理預抽期的研究
分享友人