tunnel approaches 中文意思是什麼

tunnel approaches 解釋
通往隧道的引道
  • tunnel : n 隧道；地道；坑道；管道，煙道，風洞；【礦物】石巷，平峒。 tunnel warfare 地道戰。vt （〈英國〉 l...
  • approaches : 走進；方法，途徑
  1. Inversion analysis of measured displacements is used extensively in geotechnical engineering, structural engineering, information construction, and trauma diagnosis, etc. in this dissertation, parameters identification of original geostress and medium physical property in cavern, slope, tunnel and dam are taken as a cut - in point. macroscale inversion analysis of displacements and numerical solutions of inverse problems of mechanics are researched profoundly. scientific theories of multiscale problems are connected with numerical inversion approaches

    本文以地下洞室、邊坡工程、隧道工程與大壩等領域的初始地應力參數和介質物性參數識別為切入點，對宏觀尺度位移反演分析和力學反演問題數值求解方法進行了比較深入的研究，並將多尺度問題科學理論和反演數值方法聯系起來，初步探討了結構性承載材料（如巖石、骨材料等）的多尺度力學模型及其反演方法。
  2. To improve cross border traffic and relieve the road traffic to northwest new territories, the tai lam tunnel and its approaches of route 3 commenced construction in 1995 and was completed in may 1998

    三號干線的大欖隧道及連接路於一九九五年動工，在一九九八年五月完成，藉以改善過境交通及紓緩通往新界西北部通路的交通。
  3. Secondly, in view of the limitation and shortage of traditional simulation of finite element approaches for bolt, a new composite grouted bolt element including nonlinear contacting relation will be built based on the above study of the mechanics mechanism of fully grouted bolt. then, an elastic - plastic finite element program will be developed for the analyses of tunnel stability, in which the composite grouted bolt element and nonlinear finite element analysis method will be used ; the patterns and the affect of main design parameters on the support effect of bolt will be analysed using the program, and conclusions of guidance importance for tunnel support design will be drawn. finally, simulation compution for the excavation and support of a highway tunnel will be made out using the above production, and the method of application of the program will be discussed ; analysis of the deformation, stress and distribution of plastic range will be done, and rational support plan will be worked out, which is of guidance importance for tunnel support design and the thery and technique of fully grouted bolt used in tunneling will be perfected further

    首先，本文在綜合分析隧道穩定性影響因素及失穩破壞模式的基礎上，對全長粘結式砂漿錨桿作用力學機理進行了深入研究，為全長粘結式砂漿錨桿的有限元模擬分析奠定了基礎;其次，針對傳統錨桿有限元模擬方法的局限性與不足，在上述全長粘結式砂漿錨桿作用力學機理研究基礎上，建立出能反映界面非線性粘結的新型復合砂漿錨桿有限單元模型;然後，運用上述復合砂漿錨桿單元模型，引進非線性有限元分析手段，開發了隧道支護穩定性分析的有限元程序，並就全長粘結式砂漿錨桿的型式與設計參數對支護效果的影響進行了深入探討，得到了對隧道支護設計具有指導意義的結論;最後，運用本文研究成果對某公路隧道工程實例進行了開挖與支護的模擬計算，探討了其應用方法，並就隧道變形與應力及塑性區分佈規律進行了分析，從而提出了合理的支護方案，為隧道支護設計提供了參考依據，完善了隧道全長粘結式砂漿錨桿支護的理論與方法。
  4. There are many approaches to achieve the purpose, and one of the perfect them is tunnel - cascaded multi - active regions large cavity ld structure, in which not only the effective thickness of the active region increase but also obtain lds ’ low threshold current and high slope efficiency and other properties

    有多種途徑實現ld光束特性的改善，其中採用多有源區隧道結級聯大光腔結構的半導體激光器是既增加有源區等效厚度而又保證ld低閾值電流和高斜率效率等特性的最佳途徑之一。
  5. On approaches to control quality of tunnel construction in using tunnel lining trolley

    隧道襯砌臺車在襯砌施工中的質量控制對策
  6. In this paper, in order to find the approaches to reduce the drag levels and enhance the lift - drag ratio for grid fin, the aerodynamic characteristics of the grid fin are calculated with tvd finite volume scheme and wind tunnel tests. according to the complex flow field, a curve - long parameter grid generation technique is applied, and the density of the grid is processed

    為適應復雜流場的數值計算，對網格生成方法進行了研究，採用弧長網格生成法進行貼體網格生成，並對網格進行了加密處理，使物面附近網格盡量密些，而在遠場使網格盡量稀疏些。
  7. Transverse yellow bar markings and or the traffic sign " reduce speed now " have been placed on all exits of expressways and approaches to tunnel toll booths to remind motorists to reduce speed in good time

    3 .在所有快速公路及通往隧道收費廣場的路段已髹上黃色橫條道路標記和或豎設」開始減速」的交通標志，提醒駕駛人士在適當時候減低車速。
  8. Sha tin heights tunnel and approaches

    沙田嶺隧道及引道
  9. Using the developed computer program the wind flow around a cubic building model, a rectangle - section tall building and a gable - roof building are first numerical predicted, respectively. in the prediction the single - area and multi - area grid refinement approaches are respectively used and the numerical results are compared with the wind - tunnel test results and the numerical results without grid refinement obtained by other researchers. this indicates that the proposed nonstaggered grid and refinement scheme is not only valid and easy to be car

    採用編制的計算程序首先對一立方體建築模型、一矩形截面高層建築和一雙坡屋面建築的繞流風場進行了模擬計算，分別採用單域和多域加密方案對建築周圍的網格實施了局部加密，數值模擬結果與風洞試驗結果以及其他研究者的非加密計算結果進行了比較。
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