巖層頂板 的英文怎麼說

中文拼音 [yáncéngdǐngbǎn]
巖層頂板 英文
top of bed
  • : 名詞1. (巖石) rock 2. (巖峰) cliff; crag
  • : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...
  • : 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) ...
  1. Control design of roof rocks for gob - side entry

    沿空留巷控制設計
  2. Main factors and mechanics influencing water inrush from roof snadstone

    影響徐州礦區煤涌水的主要因素及機理
  3. The anchorage force of bolt, the displacement of deep surrounding rock, and the surface displacement of the gateway were comprehensively observed, indicating that the testing entry affected by dynamical mining pressure still keeps stable, achieving a good supporting effect

    錨桿受力、圍深部位移、及巷道表面位移綜合觀測表明,受回採動壓影響后,試驗巷道穩定,支護效果好。
  4. 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破壞的標準,當采空區的安全系數等於1 . 2時,利用flac軟體計算得出各種跨度空區在不同中的最小安全厚度。
  5. 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

    摘要根據淺埋煤的賦存特點和長壁開采時關鍵的變形破斷特徵,應用初始后屈曲理論探討了開采過程中關鍵的后屈曲性態,得出了老初次來壓時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。
  6. 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體變形規律,對該礦東采區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的變形規律,為採取有效措施控制移動提供了依據。
  7. 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為極鬆散細砂條件下的放煤工藝進行了研究。
  8. Experimental study on mechanical character of sandstone of the upper plank of coal bed under high temperature

    高溫狀態下力學特徵試驗研究
  9. 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,由於煤開采引起煤發生的損傷演化和應力場調整的過程進行了有限元分析。
  10. 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,對溶地段鉆孔灌注樁的施工工藝、荷載傳遞機理、持力厚度及嵌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。
  11. Thickness of supporting layer and depth of pile in the rock are two important aspects considered in pile design in karst area

    溶地區基樁的持力厚度和嵌深度問題,是樁基設計時考慮的重要方面。
  12. Study on the zone with rich water of the roof rock of 3rd coal seam in xinglongzhuang mine

    興隆莊煤礦3煤富水性分區
  13. Research on rationally arranging position of horizontal boreholes in roof rock stratum

    水平長鉆孔合理布孔位的研究
  14. The development and application of new - type detector of roadway roof strata structure

    新型巷道結構探測儀的研製和應用
  15. 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# )和2 (上標# )共同來壓作用的結果。
  16. Because the upper rocks are influenced after the mining lower coal, they glide along the primary bursting surface, and the upper rock layers can form surface - contact fabric by its shear and bulge function

    作者認為,下煤開采後上覆受到二次擾動,其破壞移動主要是沿原有破裂面滑移,由於剪脹的作用,上覆能夠形成面接觸的覆基本結構特徵。
  17. Analysis and prevention measures of mine roof sandstone flood in panji - xieqiao mining area

    潘謝礦區煤水害分析與防治措施
  18. Study on the influence laws of side pressure coefficient on roof failure of roadway in alternating stratified soft roof rock

    側壓系數對巷道軟弱互體破壞影響規律研究
  19. Which often produces some unexpected problems, such as prolonging time limit of project, increasing engineering quantities and cost, etc. through test on the site, dynamic value analysis, finite element unit method, the paper researchs construction technology of in - situ pile, transfer theory, thickness of supporting layer of head slab and depth of pile in karst area, provides some important conclusions, directs effectively the design and construction of this kind of projects

    但因溶洞的分佈規律性差,現有勘探手段難於事先查明它的準確位置及大小,因而常常給施工帶來意想不到的問題:工期延長、工程量增加及工程費用增加等。本文通過現場試驗、理論計算和有限單元分析,對溶地區鉆孔灌注樁的施工工藝、荷載傳遞機理、持力厚度及嵌深度等方面進行了較為系統的研究,得出了一些重要結論,有效地指導了該類工程的設計和施工。
  20. Mechanical characteristics and cracking mechanism of coal roof sandstone under high temperature

    在高溫下的力學特性及破壞機理
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