roof rock 中文意思是什麼

roof rock 解釋
頂板巖石
  • roof : n 1 屋頂,房屋;家屋。2 (放行李的)車頂;笠形罩。3 上頜。4 最高部,頂部;【礦物】頂板。5 【航空...
  • rock : n 1 巖,巖石,磐石,巖壁;卵石;〈常 pl 〉〈美口〉石子兒;暗礁,巖礁。2 〈the R 〉直布羅陀 (Gibr...
  1. Practices on bolt, mesh, anchor and beam support in coal drift under unstable roof condition of cataclastic rock mass

    不穩定頂板煤巷錨網索梁支護實踐
  2. False roof rock

    偽頂巖石
  3. Effect of igneous rock on the roof pressure of mining field

    火成巖對采場頂板壓力分佈的影響
  4. Embedded development and realization of a rock oil flat roof test - machine

    嵌入式測井平臺測試儀的研發與實現
  5. Speediness construction technique in mud - rock roof fall district

    泥石流冒頂區快速施工技術
  6. 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。
  7. Discussion on theory of compound soft rock roof, soft seam along goaf drivage roadway

    松軟煤層沿空掘巷理論探討
  8. Through analyzing on the different phenomena of gas pouring amount at different coal seam, different area at the same seam, different position at the same area, the coal thicknss, inclined angle, structure, roof and floor rock character and water content in coal est. geology factor are regarded as the main reason of effecting the gas pouring amount

    通過對不同煤層,同一煤層不同區域,同一區域不同地點瓦斯湧出量有很大差異現象的分析,認為煤層厚度、傾角、構造、頂底板巖性、煤中水分等地質因素是影響瓦斯湧出大小的主要原因。
  9. This text has analyzed the mechanism that relieving - shot control the deformation of roadway country rock, and the sureness of the rational parameter, relieving - shot is practiced in south high - pressure 31022 haulageway in gedian mine of shenhuo group, through the deformation data of two sides roadway and the roof - floor after releasing pressure, the effect of releasing pressure is verified, and relieving - shot parameter is rational

    本文分析了卸壓爆破控制巷道圍巖變形的機理,以及合理參數的確定,並在神火集團葛店礦高地壓南31022機巷進行了卸壓實踐,通過卸壓后的巷道兩幫以及頂底板的變形量數據,證實了卸壓爆破起到了很好的卸壓效果,且卸壓爆破參數是合理的。
  10. Abstract : this paper discribes the principle of rook acoustic emission techniques. some applications such as insitu rock stress measuring, locating high stress zone, predicting roof falling and evaluating rook stability are presented

    文摘:論述了巖體聲發射技術的基本原理,介紹了其在采礦工程中的若干應用成果:地應力測量、高應力區圈定、冒頂預測預報、穩定性評價。
  11. When i was got through the strait, i found the roof rose higher up, i believe near twenty foot ; but never was such a glorious sight seen in the island, i dare say, as it was, to look round the sides and roof of this vault, or cave ; the walls reflected 100 thousand lights to me from my two candles ; what it was in rock, whether diamonds, or any other precious stones, or gold, which i rather suppos d it to be, i knew not

    鉆過這段通道后,洞頂豁然開朗,洞高差不多有數十英尺。我環顧周圍上下,只見這地下室或地窟的四壁和頂上,在我兩支蠟燭燭光的照耀下,反射出萬道霞光,燦爛耀目這情景是我上島以來第一次看到的。至於那巖石中是鉆石,是寶石,還是金子,我當然不清楚,但我想很可能是這類珍寶。
  12. Elastic mid - strength rock wool board : used for heat preservation, fireproofing and sound absorption for the building wall / roof, such as curtain wall, inner wall partition and elevator hoistway, etc

    有彈性,中等強度巖棉板:適用於建築墻體/屋頂保溫、防火、吸音,如幕墻、內墻隔斷、電梯井等。
  13. Based on the rock pressure ' s characteristics of the pre - driven roadway, the rational support plan and parameters about roof bolting with bar and wire mesh are determined, and the manner of driven waste in place of coal was adopted

    基於斷層中預掘巷的礦壓特點,確定出其合理的錨梁網支護方案與支護參數,並採用了掘出的矸石與煤的合理「置換」方式。
  14. 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
  15. 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
  16. 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
  17. The sedimentary framework and evolution of upper permian - triassic in hand depression are discussed, and two sets of soure - reservior - roof rock associations are determined

    論述了哈密坳陷上二疊統三疊系的沉積格局及其演化,確定出兩套生儲蓋組合。
  18. Study on the periodical damage and fractal of roof rock - mass

    頂板巖體周期性損傷及其分形研究
  19. 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層頂板巖體破壞影響規律研究
  20. We thus suspected that the collapsed roof rock from one of the two oldest yellowstone supereruptions must have melted to form the bulk of the magma that was ejected during the younger lava creek catastrophe and smaller eruptions since

    我們因此猜測,較年輕的克里克熔巖凝灰巖以及之後的小型噴發,巖漿來源是黃石國家公園兩個最古老的超級噴發之一,其崩陷的頂層巖熔成了后來噴發出的巖漿。
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