巖層頂 的英文怎麼說
中文拼音 [yáncéngdǐng]
巖層頂
英文
rock head-
Control design of roof rocks for gob - side entry
沿空留巷頂板巖層控制設計Main factors and mechanics influencing water inrush from roof snadstone
影響徐州礦區煤層頂板砂巖涌水的主要因素及機理According to roof safety factor of 1. 2 for the mined - out area, minimum safety roof thickness at different rock in various span mined - out area was calculated by flac software, which transfixion of plastic zone was taken as criteria of roof breakage by using strength reduction technology and dichotomy theory
摘要利用強度折減技術和二分法原理，以塑性區的貫通作為頂板破壞的標準，當采空區頂板的安全系數等於1 . 2時，利用flac軟體計算得出各種跨度空區在不同巖層中的最小安全頂板厚度。Grain gradation, from coarser below to finer above in repeated, truncated sequences within the ellerslie sandstone is also evident.
在埃勒斯萊砂巖層段內，重復出現的截頂層序中，自下而上，由粗變細的粒級遞變也是明顯的。They said that there was likely to be oil in the crests of folds of rock layers.
他們認為在巖層褶皺的頂部可能會有石油。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。Through inversion analyzing the results of inspection and observation which was applied the multipoint displacement measures and the drilling anchor stress measures to the top surface in the xianggui gypsummine eastern workings, this article will attempt to propose the deformation law of stope terrane after the underwater mine area, which provided a reliable basis for taking measures to control the strata movement
摘要為了研究湘桂石膏礦的巖體變形規律，對該礦東采區頂板巖孔多點位移計觀測和鉆孔錨桿應力計檢測的結果進行綜合反演分析，提出了水下礦區開挖后采場巖層的變形規律，為採取有效措施控制巖層移動提供了依據。In order to optimize the parameters of running top coal under different coal and gangue fragmental size, on the basis of measuring and analyzing the distribution character of top - coal fragmental size, running top coal was studied for the coal seam with dead - unconsolidated thin sandstone roof by loose medium model experiment
摘要為了優化不同煤矸塊度條件下的放煤工藝參數，在實測分析頂煤破斷塊度分佈特點的基礎上，採用散體模型試驗的方法對煤層頂板為極鬆散細砂巖條件下的放煤工藝進行了研究。The unconformability between the loess landform of shaanbei loess plateau and its bedrock shape was pointed out first after the full demonstration. the top of loess formation of the south part in shaanbei is flat which likes " platform ", the shape of the bedrock is rolling that likes ridge, and the bedrock bended to fold. the top of loess formation of the mid - part in shaanbei is rolling, but the shape of the bedrock below begins to get flat, the top of loess formation of the north part in shaanbei, loess mao district, is much more rolling among them, however, its shape of the bedrock below is the flattest relatively likes the platform shape of loess formation in south
具體地講，陜北高原南部的洛） 11黃土源，黃上層頂部相對平坦，地貌類型以黃土源為主格調，而其下伏基巖地層詔皺相對發育，古地勢起伏相對較大：陜北高原中部的延安一安塞黃土梁狀（為主）丘陵溝壑區，黃土層頂部起伏相對增大，地貌類型以黃土梁為主格調，而其下伏基巖地層槽皺程度趨弱，地層較平緩，古地勢起伏相對降低；陜北高原北部的綏德一子洲黃土赤狀（為主）丘陵溝壑區，黃土層頂部起伏度相對最大，地貌類型以黃上赤為主格調，而其下伏基底地層以平緩為特徵，古地勢起伏強度亦相對較低。We circled the top of the hill where the drill rig was turning and most of the work had been done and then flew halfway down the hill so we could see visually where the outcrop from the top of the hill continued down the hill
我們繞著山頂飛行，山頂上，鉆機在轉，鉆探工作已完成過半，然後我們往下飛，在半山腰我們可以看見露出地面的巖層從山頂綿延而下。Experimental study on mechanical character of sandstone of the upper plank of coal bed under high temperature
煤層頂板砂巖高溫狀態下力學特徵試驗研究On the basis of analyzing the geology conditions of qidong well field, using the rfpa2d analysis system, we have carried on the finite element analysis to the adjustment process of stress field and the damage evolution of the coal bed roof which was caused by coal bed mining
摘要在分析祁東井田地質條件基礎上，利用rfpa2d分析系統對不同地應力條件下，由於煤層開采引起煤層頂板覆巖發生的損傷演化和應力場調整的過程進行了有限元分析。This differ with computation modal that design the foundation pier very big, bearing power too than design increment ; usage mechanics numerical analysis device with limited a logarithm of timw fitting method logt, noted the rock strength in stake tip of the borehole cast - in - place concrete pile to proceed with the structure steadiness the simulation compute to study with the fixed amount, designing for the engineering to start construction to provide for science with the spot
本研究結合現場試驗、力學數值分析和有限單元分析，對巖溶地段鉆孔灌注樁的施工工藝、荷載傳遞機理、持力層頂板厚度及嵌巖深度等方面作一些探討性研究，為該工程的設計和施工積累經驗，並為該類課題的進一步研究奠定了基礎。The factors included the characters of terranes and weak interbeds and the intersections with slope surface ; the characters and combinations of structure joints and the intersections with slope surface ; combinations of lithology ; dualistic structure of m - shaped slope made up of red rockmass and overlying deposit soil
按紅層邊坡巖體結構狀態，把紅層邊坡巖體結構劃分為4種，然後又按紅層邊坡巖體的巖性組合特徵、巖層產狀與坡面產狀的關系、結構面的發育情況及其與坡面的關系、以及上覆堆積土的邊坡巖體的坡頂線形狀和巖土組合特徵細分為13個類型和亞類。Thickness of supporting layer and depth of pile in the rock are two important aspects considered in pile design in karst area
巖溶地區基樁的持力層頂板厚度和嵌巖深度問題，是樁基設計時考慮的重要方面。Fault tree analysis for collapse of roadways with fractured surrounding rock and high tectonic stress in jinchuan mine no
金川二礦區不良巖層采場巷道片幫冒頂事故樹分析Study on the zone with rich water of the roof rock of 3rd coal seam in xinglongzhuang mine
興隆莊煤礦3煤頂板巖層富水性分區Research on rationally arranging position of horizontal boreholes in roof rock stratum
頂板巖層水平長鉆孔合理布孔層位的研究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Therefore, the abnormal strata behavior happened in the advance entry is the result of common action of 3 ( superscript # ) and 2 ( superscript # ) roofs
1303綜放工作面超前平巷發生的奇異壓力現象是3 （上標# ）頂板和2 （上標# ）頂板巖層共同來壓作用的結果。分享友人