seam pressure 中文意思是什麼

seam pressure 解釋
煤層壓力
  • seam : n 1 縫；線縫。2 介面；接縫；接合處；接合線。3 裂縫。4 （臉上的）皺紋。5 傷痕。6 【造船】（船板間...
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  1. 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
  2. Analysis on danger of pressure bump when fully mechanized sublevel caving mining face passed through terminal mining line of top slicing seam

    綜放面過上分層終采線沖擊地壓危險性分析
  3. Application of coal seam mining technology at dynamic pressure appear and fire area

    火區及動壓下煤層開采技術的應用
  4. The construction methods and caving protection measures for punching high thick and loosen soft coal seam in luling coal mine no. 2 dark tilt well in huaibei coal mine area are introducded. they include small section enlarged after the heading caving, high negative pressure and multi - raw drilling holes and strenous drawing - off, concentrated cross drill holes, cutting while drawing - off and putting the metal frame away

    介紹了淮北礦區蘆嶺煤礦2主暗斜井採用小斷面導硐后刷大、高負壓多排鉆強抽，密集交叉鉆孔邊掘邊抽及設置金屬骨架施工方法和防突措施揭穿高突特厚松軟煤層。
  5. 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
  6. Numerical simulation study on the high - pressure water injection into coal seam in muchengjian coal mine

    木城澗礦煤層高壓注水的數值模擬分析
  7. Practice of comprehensive meehanized mining technology in deep pressure - bearing water seam

    深部承壓水體上煤層綜合機械化開采技術實踐
  8. Ground pressure behavior of light top - coal caving method in extremely thick and soft seam

    極軟特厚煤層輕放開采礦壓顯現規律
  9. Bolt beam mesh support in full seam gateway in seam with pressure released

    卸壓煤層全煤巷道的錨梁網支護
  10. Combined support using beam and bolting wire mesh for coal roadway in pressure - relieving seam

    卸壓煤層全煤巷道的錨梁網支護
  11. Study on ground pressure regularity during the mining of 6th coal seam in suoli coal mine

    朔里6煤開采礦壓顯現規律研究
  12. Add up to the oil deposit carries on parameters such as year, month output, daily output and oil pressure moisture content etc, and uses the man - made nerve communication method to analyze the nonhomogeneity characteristic of seam cave mould oil deposit system

    油氣從地層向井筒的動態滲流過程，直接受儲層各向異性影響。對油藏進行年度、月產量、日產量、油壓含水率等參數統計，利用人工神經網路方法分析縫洞型油藏系統的非均質特徵。
  13. Study on bolt - net supporting and ground pressure of entries in three soft seam of wangcun coal mine

    王村礦三軟煤層回採巷道礦壓顯現與錨網支護研究
  14. Destructive tests on welds in metallic materials - resistance welding - pressure test on resistance seam welds iso 17654 : 2003 ; german version en iso 17654 : 2003

    金屬材料焊縫破壞檢驗.電阻焊.電阻縫焊壓力試驗
  15. Gas extraction techniques and movement properties of long distance and pressure relief rock mass upon exploited coal seam

    上覆遠程卸壓巖體移動特性與瓦斯抽采技術
  16. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. ultrasonic testing of the weld seam of elcctric resistance and induction welded steel tubes for the detection of longitudinal imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.電阻焊和感應焊鋼管焊縫縱向缺欠的超聲波檢測
  17. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. radiographic testing of the weld seam of submerged arc - welded steel tubes for the detection of imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.埋弧焊鋼管焊縫缺欠的射線檢測
  18. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. ultrasonic testing of the area adjacent to the weld seam of welded steel tubes for the detection of laminar imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.焊接鋼管焊縫附近分層缺欠的超聲波檢測
  19. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. ultrasonic testing of the weld seam submerged arc - welded steel tubes for the detection of longitudinal and or transverse imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.埋弧焊鋼管焊縫縱向和或橫向缺欠的超聲波檢測
  20. The practice and recognition of preventing the seam pressure bump

    煤體沖擊地壓防治的實踐與認識
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