煤層變厚 的英文怎麼說
中文拼音 [méicéngbiànhòu]
煤層變厚
英文
belly-
By means of stress - strain feature of upper and lower strata of fold neutral plane in the course of longitudinal fold formation, the differences between the upper coal bed and lower coal bed of fold neutral plane are analyzed from the coal thickness, coal structure, coal body structure, coalbed gas occurrence and diversities etc., revealing the cause of these appearances
摘要利用縱彎褶皺變形中中和面上下巖層的不同應力與應變特點,分析了處于褶皺中和面上下各煤層在背斜與向斜部位煤層厚度、煤層構造、煤體結構及煤層瓦斯的賦存規律與差異性,揭示了這些現象產生的原因。Dynamical destabilization analysis of steep and heavy thick coal seam in a deep - mine under the complex - variable environment based on ae
的深部復變環境下急斜特厚煤層開采動力失穩分析For the tectonic coal , the properties of higher porosity and lower permeability make it capable of keeping higher gas pressure ; both of the “ isolating action ” and “ gas - cushion action ” cut down the resistance against outburst ; the specifity of high - defomed - extent makes desorption , escape and flowing quickly become possible ; the existing of weak - seam or “ thoroughfare - seam ” create suitable conditions for the initial erupting and continued developing of coal and gas outburst. on the whole , it is the synhesis action of all factors , which leads to outbursts. the existing of tectonic coal with certain thickess is the essential condition of coal and gas outbursts , but not the sufficient condition
高空隙率、低透氣性使構造煤能夠保持較高的瓦斯壓力;破碎性、 「隔離」作用及「氣墊」作用,使構造煤抵禦外力作用的能力大大降低;構造煤變形幅度大的特性,為瓦斯的迅速解吸、放散和快速流動創造了條件;構造煤薄弱分層或「通道層」的存在,則為煤與瓦斯突出的初始激發和持續發展奠定了基礎;上述因素的共同作用,影響和制約了煤與瓦斯突出的強度和分佈.盡管如此,一定厚度的構造煤的存在只是發生煤與瓦斯突出的必要條件和有利條件,而非充分條件The hardness and thickness of coal seam play a great role in the vertical distribution of stress in coal and the occurrence of rock bunt under the condition of hard roof and hard floor
在「兩硬」條件下,煤層厚度與硬度的變化對煤體中的應力分佈有著很大的影響,從而對煤巖體系統中沖擊礦壓的發生有著很大的影響。Influences of geologic structure and else factors to coal seam thickness in dongyang mine field
東陽井田構造及其它因素對煤層厚度變化的影響Based on the in - situ observation of the firstly mined working face of nanliang coal mine, the roof movement, the roof weighting intensity, and entry deformation and failure of the working face were analyzed
摘要通過南梁煤礦首采工作面采前的實驗研究和開采時的現場觀測,分析了工作面頂板的移動、來壓強度以及巷道變形破壞情況,總結了厚黏土覆蓋層淺埋煤層單體長壁工作面的礦壓顯現規律。Cause analysis on thickness variation of coal seams in tucheng mine
土城礦煤層厚度變化成因分析Based on the characteristics of intense deformation - failure of surrounding rock in a soft and thick coal seam roadway along gob area coal mine, the structure calculating model of original rocks around a roadway along gob area is constructed by knowledge of mechanics, and various bolt - mesh - anchor supporting schemes are simulated and supporting parameters optimized, supporting schemes is proposed, which is secure and economic
摘要針對松軟破碎厚煤層綜放沿空巷道圍巖變形破壞特徵,建立沿空巷道原始圍巖結構計算模型,模擬計算各種不同支護設計方案,優化支護參數,選定安全經濟的支護方案。Causes analysis of 1 coal seam thickness change in underground mine field of hebi 8 coal mine
鶴壁八礦井田二1煤層厚度變化原因分析This paper analyzes on the influence of the variation in thickness of coal seam and the supporting method on the coal quality, and based on this, advances some measures for reducing the gangue production to improve the coal quality on the tunneling faces
分析了煤層厚度變化和支護方式對煤質的影響,在此基礎上提出了若干減少出矸以提高掘進工作面出煤質量的措施。分享友人