road classification 中文意思是什麼

road classification 解釋
公路分類
  • road : n 1 路，道路；街〈略 Rd 〉；公路；行車道；路程，行程。2 〈美國〉鐵路。3 方法，手段，辦法；（走向...
  • classification : n 1 選別；分等，分級；分選。2 【動、植】分類（法）。 〈分類級別為： phylum 【動物；動物學】及 div...
  1. The paper is based on innumerable practical heavy - load road data, deliberate heavy - load standard in detail through theoretical arithmetic, and bring heavy - load standard about cement concrete pavement and asphalt concrete pavement separately ; in the meantime, through a large quantity of cement concrete pavement stress calculation, the paper puts forward relation expression between load on concrete board and stress level under board ; meanwhile, the paper puts forward traffic classification about cement concrete pavement and asphalt concrete pavement ; through bearing board testing on each structure sheaf the paper finds the material modulus gets modified ; through comparing position equivalent rebound modulus to theoretical equivalent rebound modulus, the paper points out limitation of nomograph in course of cement concrete pavement design, whereby, puts forward modifier formulas about theoretical equivalent modulus

    本文以大量的重載道路資料為主，從實際出發，結合理論計算，對重載標準進行了詳細的討論，分別給出了水泥混凝土路面與瀝青混凝土路面的重載標準了；同時，通過大量的水泥混凝土板底應力計算，推導出了混凝土面板荷載與板底應力水平的關系式；給出了水泥混凝土路面與瀝青混凝土路面的交通分級；通過對試驗路各結構層進行承載板測試，發現現有材料模量較以前有了明顯的提高；對比現場實測的當量回彈模量與理論當量回彈模量，指出現有水泥路面設計中的諾謨圖不能完全符合現有道路材料，從而提出了對理論模量的修正公式。
  2. Road foundations. pozzolana and lime bound granular material. definition. composition. classification

    路面層.粗砂.火山灰.石灰.定義.混合物.分類
  3. Based on the original data of tm in 1988, 1992 and 1998, then after some processing and analysis, the author have the thematic data of land - use by interpretation. on the basis of them, the author made the analysis of land - use for this area based on the spacial analysis of gis and the method of comparison between result of land - use classification as follows : the method of aggregating analysis, the analysis of urbanization, the analysis of the transformation rate of cultivated land, the analysis of the driving force of land - use change and the sustainable use of land. the conclusions may be demonstrated below : the cultivated land decreases with the patchs fragment ; road spreads radialy surround second - ring road ; the urban land expands quickly toward southwest along the major roads and be concentrative. rural land and industry increse rapidly with dispersing ; 0thers change slowly. the major driving forces of land - use change in this area are the rapid expansion of urban and rapid growth of population, foreign investment and the development of tertiary industry which was based upon the real estate. according the trendency of land - use change, the author consider that we must insist on the way of the sustainable use of land based on protecting the cultivated land

    在此基礎上，應用分類結果比較法，在gis各種空間分析功能（幾何量算、統計分析、疊加分析及緩沖區分析）的支持下，對該區土地利用變化進行了如下分析：土地利用綜合分析、城市化進程分析、耕地轉化率分析、土地利用變化因素分析及土地的可持續利用分析。結果表明：該區土地利用變化主要表現為耕地大量減少，斑塊破碎化；交通用地沿二環線呈放射狀向四周擴展；城鎮用地沿交通干線向西南方向擴張迅速，用地趨于集中；農村居民點和工礦業用地增加，用地趨于分散；其它用地變化較慢。這一用地變化的主導因素是城鎮用地擴展快、人口增長迅速、外資的大量投入及以房地產為主的第三產業的快速發展。
  4. According to the research results of the rock quality calculation, the columnar section digitlizing, the rock mass structure diagnosis and other methods this paper used engineering limited parameters, basic structure and evolutionary structure of rock mass as the first grade indexes, proposed the technique of dynamic engineering classification of stability of mine road surrounding rock mass ? dec ?, pointed out the method of using dec results

    基於圍巖質量計算、柱狀圖數字化與重組、圍巖結構診斷、采動應力作用后圍巖結構演化等研究成果，採用工程要求、基本結構、演化結構」為一級指標，提出了巷道圍巖穩定性動態工程分類技術、分類結構的表達技術及分類結果的應用方法
  5. Road foundations. lime and fly ash bound granular material. definition. composition. classification

    路面層.粗砂.細煤渣.石灰.定義.混合物.分類
  6. Road foundations. slag bound granular materials. definition. composition. classification

    路面層.粗砂.爐渣.定義.混合物.分類
  7. Road foundations. cement bound granular material. definition. composition. classification

    路面層.粗砂.水泥.定義.混合物.分類
  8. Road foundations. road special binder gravel. definition. composition. classification

    路面水泥層.公路用特種粗砂粘結劑.定義.成分.分類
  9. Road foudations. hydraulic fly ash bound granular material. definition, composition, classification

    公路水泥層.粗砂.水硬性懸浮灰.定義成分分類
  10. Road safety barriers. performance, classification and qualification criteria

    鐵路安全柵欄.性能分類和質量規范
  11. In this paper, a series of surveys on road condition, pavement - performance and destroy reason are analyzed, soil property, hydrologic regime are combined, modulus of resilience are confirmed on heavy compaction test, foundation classification in area of qinhuangdao is divided into 3 grades and highway is divided into 3 districts according to the principle that different soil grades produce the same effect on thickness of base course or bottom course, classification of traffic is divided into 4 grades after observation materials of traffic volumes are collected extensively, traffic characters and parameters are analyzed

    本課題在對現有路面結構狀況和使用狀況進行調查，並對路面使用性能和破壞原因進行分析的基礎上，結合秦皇島地區的土質、水文條件，確定重型擊實標準條件下土基回彈模量值，依據不同等級土基對路面基層或底基層的厚度產生大致相同效應的原則，將秦皇島地區地基強度等級劃分為三級並將本地區公路分成三個區。在廣泛收集交通量及組成的觀測資料，了解交通特性，進行交通參數分析后將交通量等級劃分為四級。
  12. Fourth, according to the weibull distributing functions of equivalent loads, calculated the max loads by expanded sample method, acquired eight routine loads spectrum of each roads taking advantages of the connover classification method, calculated the respective enhancement coefficient in principle of amended miner linear accumulated fatigue damage rule, by the comparative norm of general tar - paved road, educed the mathematical model of calculating enhancement coefficient of synthesized roads

    利用數理統計的方法得到了各路面的等效載荷的weibull分佈函數。第四，根據各路面的等效載荷的weibull分佈函數採用擴展樣本法求得了各路面的極值載荷，按照connover的分級法得到了各路面的八級程序載荷譜。以一般瀝青公路為比較基準，採用修正的miner線性累積損傷理論，根據前橋的s - n和p - s - n關系式得到了各路面的強化系數，建立了綜合路面的強化系數計算的數學模型。
  13. Road foundations. road roller compacted concretes and high performances cementitious granular material. definition. composition. classification

    路面水泥層.公路密實混凝土和水硬性粘結劑與高性能火山粘結劑的粗處理.定義.成分.分類
  14. Study on the classification of road greening areas in liaoning province

    遼寧省公路綠化區域類型劃分的研究
  15. In the scheme, ugis classification and coding are divided into three steps : administrative districts are firstly classified and coded, and then street and road with the corresponding code of administrative district added, at last add the code of both the corresponding administrative district and street or road into the code of other corresponding geo - information. this method can reflect topologic relationship between objects, make a fast query and shorten the length of codes

    這種綁定式的城市地理信息拓撲編碼的好處是：在編碼中既體現了城市地理信息之間在空間上的拓撲關系，又提高了整個系統查詢和檢索的速度；按行政區劃和城市街道進行城市地理信息的分類與編碼，代碼結構清晰易懂，而且可以大大縮短編碼的長度。
  16. Standard classification for sizes of aggregate for road and bridge construction

    道路和橋梁建築用集料粒度的標準分類
  17. ( 2 ) study on the mechanics mechanism of the calamity caused by the cave of the highway : based on the investigation in detail along the line of the highway in shan - gan loess plateau, the distribution law, the classification and characteristic of hazard of highway cave are presented ; the calamity mechanism of highway cave opposite side slope and road bed is discussed, especially the mechanism of collapsing of the hidden cave in road bed. propose " the effect of hidden corrosion ", etc. 10 kinds send to mechanism of collapsing. based on the principle of limit balance, the formula of the critical treating thickness of hidden cave is put forward as follows : according to different stratum, different size and depth, the calculation of the critical thickness of the hidden cave of roadbed has been carried on

    （ 2 ）公路洞穴的致災力學機理研究：在對陜甘黃土高原區公路沿線黃土洞穴詳細調查基礎上，研究了公路洞穴分佈規律、危害分類及致災特點；公路洞穴對邊坡及路基的致災機理，重點是路基暗穴致塌機理，並提出了「潛蝕效應」等十種致塌機制；利用極限平衡原理導出路基暗穴臨界處理厚度計算公式如下：針對不同地區不同地層，對不同尺寸和埋深的暗穴，進行了路基暗穴臨界處理厚度的計算。
  18. Primarily there are two aspects : 1 ) the calculation model of the value of land classifying units - - model of time distance attenuation. in the calculation model of the value of land classifying units, author brings forward the model of time distance attenuation. in this model adopting the network analysis, and by establishing the road network, and proceeding path analysis, computing the time distance, then proceed the exponential attenuation or straight line attenuation on time distance, get the value of influence factor of the land classification unit

    主要有兩個方面： 1 、定級單元分值計算模型? ?時間距離衰減模型在定級單元分值的求取模塊中，提出了時間距離衰減模型，模型中採用網路分析的方法，通過建立道路網路，進行路徑分析，求取時間距離，進而按時間距離進行指數衰減或直線衰減，得到定級單元因素因子影響分值。
  19. Road construction and maintenance equipment. compactors. classification

    道路建造和維護設備.壓土機.分類
  20. Classification and code for road vehicles - motor vehicle

    道路車輛分類與代碼機動車
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