caving 中文意思是什麼

caving 解釋
岸崩
  1. Stability analysis and control principles of soft rock roadway bestrided over mining by isolated fully - mechanized mining face with sublevel caving

    綜放跨采軟巖巷道穩定性分析與控制原則
  2. Gas comprehensive treatment of type caving coal face

    放工作面的瓦斯綜合治理
  3. With the roof caving in, there were an increasing number of desertions.

    由於大勢已去，逃兵的人數日益增多。
  4. The following new opinions : without caving zone coal layer extraction in efflorescent oxygenized belts ; two effects of blocking water and preventing water flowing fractured zone from going on developing after mining effect ; appropriately enlarging the extraction thickness were presented

    提出了風氧化帶煤層開采無垮落帶；受采動影響后，具阻水和抑制導水裂隙帶繼續發展的雙重作用以及適當加大開采厚度等新觀點。
  5. Study on passing faultage troop in 2116 fully - mechanized coal winning with sublevel caving face

    2116綜放面過斷層群技術研究
  6. Field survey study of ground movement and deformation laws of fully - mechanized mining with sublevel caving

    綜放開采地表移動規律實測研究
  7. Field survey study of ground movement and deformation laws of fully mechanized mining with sublevel caving

    綜放開采條件下地基反力的變化規律
  8. Preliminary study of overburden breakdown law with full mechanised top coal caving mining under thick and hard gneiss

    硬厚片麻巖下綜放採煤覆巖破壞規律初探
  9. Fire prevention and control of extra - inflammable thick seam with caving mining

    極易燃厚煤層放頂煤火災防治
  10. Study on bed - separated fissures of overlying stratum and interstice permeability in fully - mechanized top coal caving

    綜放開采覆巖離層裂隙變化及空隙滲流特性研究
  11. Ways to control gas in a fully mechanized caving face

    治理綜放工作面瓦斯的途徑
  12. In 1981, as the roof was caving in, it seemed to our company a merger might be the only way out.

    1981年，我們的情況岌岌可危，同另一家公司合併似乎是我們公司唯一的出路。
  13. Research and application of blasting mining, caving coal, large indination, thick coal seam and overhand mining technology

    炮采放頂煤大傾角厚煤層仰采技術研究與應用
  14. Coal spontaneous combustion prevention and control technology for coal mining terminal line of overlong fully mechanized top coal caving mining face

    超長綜放工作面終采線處煤炭自燃防治技術
  15. The concrete with the a 28 days compressive strength of c60 can be produced by using suitably pulverulent coal - fired ash, the higher the quantity of pulverlent coal - fired ash mixed in concrete with 10 % - 20 % is, the higher the strength of concrete is. then, we carry out the studies on the technics properties that reflect the comprehensive properties of concrete. we find that the separating and excreting water of the concrete can be avoided efficiently when the pulverulent coal - fired ash and superplasticizer are used suitably, the higher the quantity ration of coal - fired ash and super plasticizer are, the higher the caving degree of the concrete is

    在上述研究基礎上，對摻細化粉煤灰后混凝土的強度變化規律進行了分析研究，在適當配合比及高效減水劑的作用下，摻一定數量的磨細粉煤灰，在28天齡期可以配製出抗壓強度高於c60的粉煤狄高強混凝土；當磨細粉煤灰以10 - - 20不同的摻量分別摻入粉煤灰中時，粉煤灰高強混凝土的強度隨摻量的增大，各齡期強度均逐漸降低；在摻入8硅灰+ 10粉煤灰可使高強混凝土的各齡期強度都有很大增加，當單摻8粉煤灰時，混凝土的後期強度增加較快；粉煤灰混凝土必須加入高效減水劑遼十l彬技術人學碩十學位論文後j 」能達到高強的目的。
  16. Technology of high efficient mining for fully mechanized sublevel caving working face to sideway pass through sunk column

    綜放工作面遇陷落柱高效開采技術
  17. Spot testing on mechanical characteristics of surrounding rock in gates of fully mechanized top - coal caving face

    綜放回採巷道圍巖力學特徵實測研究
  18. Sub - level caving mining with seam of thickness dirt band

    含厚夾矸煤層的綜放開采
  19. Study on packing body supporting resistance of enter - in packing for in - situ gob - side entry retaining in fully - mechanized top - coal caving mining face

    綜放巷內充填原位沿空留巷充填體支護阻力研究
  20. The in - situ measurement and analysis of support resistance and top - coal movement in fully - mechanized top - coal caving face of a thick coal seam with dirt band had been carried out in some coal mine, the strata behavior and movement law of top - coal were revealed

    摘要對某煤礦含夾矸煤層綜放面的支架工作阻力和頂煤移動進行了現場觀測和分析，揭示了其礦壓顯現和頂煤運移的規律。
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