鋪面厚度 的英文怎麼說
中文拼音 [pūmiànhòudù]
鋪面厚度
英文
depth of pavement-
Through the experimental research, we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam, however, if use elasticized capacity to solve blending technological problem. adjust the breed of fiber silk, extend its diameter, its paving capacity is still worth exploring, asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity, small gap rate. good water - resistance capacity, good hot - stability and simple construction technology. therefore. pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue. and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting. pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level, although the cost of building is higher than paving togongbu in the middle, the construction technology, crazing - resistance and water - resistance are better than togongbu, not only could reduce greatly the reflex of half - rigidity grass - roots unit material, long then the use lifespan of pavement, but also it is possible to reduce suitably the thickness of asphalt mixture layer, though the cast of building in the early days becomes more, in the long - term opinion, it have fully important technological and economical significance
通過試驗研究認為:玻璃纖維瀝青碎石的技術性能不如瀝青碎石好,但路用彈性性能較好,如能解決拌和工藝問題,調整纖維絲的品種,增大其直徑,其路用性能仍值得探討,瀝青橡膠碎石結構層具有變形性能和抗裂性能良好,空隙率小,防水性能好,熱穩定性較好,施工工藝簡單的特點,因此,瀝青橡膠碎石是二級及二級以下公路因疲勞而開裂的瀝青路面的良好罩面材料,也是防止半剛性基層收縮裂縫反射的良好結構措施,在瀝青類路面面層和半剛性基層之間夾鋪瀝青橡膠碎石薄層,雖然造價比夾鋪土工布高,但其施工工藝,抗裂性能和防水性能均優于土工布,不僅可以大大減少半剛性基層材料的反射裂縫,延長路面使用壽命,而且可能適當減薄瀝青混合料面層的厚度,雖然初期造價有所增加,從長遠來看,具有十分重要的技術和經濟意義。Another topic of this article is to try to find a proper overlay design method. by using elastic layer system ( els ), finite element method ( fem ), genetic arithmetic ( ga ) back calculation and efficacious thickness method, the paper puts forward four design methods. the results say that the position where the max stress appears is not the only one but varies with the thickness of overlay
根據陜西省高速公路瀝青路面病害以及使用性能的實際情況,提出了代表彎沉值的計算方法以及下臥層模量的反演方法,在此基礎上利用彈性層狀體系理論、有限單元理論、遺傳演算法以及有效厚度法等理論對加鋪層厚度設計方法進行了研究。Using the equivalent design deflection to determine the thickness of bridge deck pavement
用有效活載撓度確定鋼筋混凝土橋面鋪裝層的厚度Deck pavement of built - up bridge may be too thick or thin due to complex reasons, among which a most important one is the design
摘要裝配式橋梁建造時會出現橋面鋪裝厚度過薄或過厚的現象,原因很復雜,但設計是一個重要原因。Conventional method of designing built - up bridge can only ensure the deck pavement thickness near the ends of beams, without enough regarding of the middle part
裝配式橋梁的常規設計方法一般只能保證支座附近的橋面鋪裝厚度,橋梁的中間部分則無法保證。With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3
首先,分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理,結合包含損傷和應變率效應的材料動態本構方程,建立了纖維復合材料板彈道極限速度的預測公式;其次,根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點,建立了陶瓷/復合材料靶板抗彈性能分析模型,給出了彈道極限速度預測公式;最後,利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題,對雙層陶瓷復合靶板的優化設計進行了分析,給出了在一定面密度下的最佳優化系數,討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。According to the special shape and operate requirements of the torpedo, the structure and moulding process of the torpedo shell are established, in which the body and overlay block with grooves are moulded by fiber winding, and close moulding respectively with the adhesive by limited stop compression. in the light of the selection of raw material system, composite system with outstanding performance are defined, based on which the mechanical properties are tested., with the overall consideration of structural characters and design demands, the main factors which may have effects on the strength and stability ( including stiffness section dimension, stiffeners space, skin thickness and skin lay angle ) is optimized one by one for the structure design parameters on the base of the fem model of skin, stiffness and layover block by fem. as a result, the prototype with 1 : 1 proportion and its structure and lay optimization design are completed. the moulding technology for polyurethane foam moulding the stiffened shell is obtai ned in terms of the design, manufacture moulding, experimental mould and tooling
依據在研產品特殊的外型結構和使用要求,確定了該型號水雷復合材料殼體的具體結構形式和復合成型工藝路線,即由纖維纏繞工藝成型主體異形件,閉模成型帶通槽外貼塊,用限位加壓工裝實現粘接的工藝路線;通過對原材料體系的篩選,確定了綜合性能較好的復合材料體系,以此為基礎進行了力學性能測試;運用有限元方法,建立了蒙皮、筋條和外貼塊的分析模型,綜合考慮結構特點和設計要求,對影響結構強度與穩定性的主要因素(包括筋截面尺寸、筋間距、蒙皮厚度、蒙皮鋪層角度)分別進行了結構設計參數的優選,最終完成了復合材料異形耐外壓殼體1 : 1樣件和縮比實驗件結構及鋪層優化設計;完成了聚氨酯泡沫胎成型內置加筋殼體的成型工藝技術研究;對縮比件進行外壓性能測試,並給出了應力、應變測試結果。Standard test method for thickness or height of compacted bituminous paving mixture specimens
壓實瀝青鋪面混合料樣品的厚度或高度的標準試驗方法The wuhan university of technology and dongzhou sfrc inc bring forward lsfrc pavement together. lsfrc pavement is a type of new composite pavement by putting certain quantity of steel fiber in the bottom and top of the pavement
該路面是在普通混凝土路面板的底部和頂部一定厚度內撒布一定量的鋼纖維鋪築而成的路面,是一種新的復合路面形式。3. in order to obtain the modulus of each layers and the subgrade. a back - calculating method which is based on the system identification principle was presented and supply the reliable technology for the overlay design
為了獲取路面各層及土基的模量,本文基於落錘式彎沉儀( fwd )的檢測數據對路面結構層模量的反算方法進行了詳細分析,從而為路面加鋪層厚度設計提供了可靠的技術支持。Conclusions as following have got through test study : ( 1 ) when impact compaction technology is applied to treat collapsible loess subgrade, the effect depth may be treated generally can not override 80 cm and impact compaction pass is optimum at 30 times. ( 2 ) for stratified impact compaction of subgrade, when compactness of each level reaches codeslstandards loose laying depth of 80 cm fits 40 impact compaction pass is the optimum combination of subgrade construction. when average compactness in each level reaches codeslstandards loose laying depth of 80 cm fits 30 impact compaction pass is the optimum combination o ( 3 ) the quality control method may request impact compaction pass as the main control index and at the same time the final division settlement is less than 10 % of total settlement as large area subgrade is constructed
通過試驗研究主要得出如下認識:沖擊壓實技術處理濕陷性黃土地基時,其有效處理深度一般不超過80cm ,沖壓遍數以30遍左右為宜;對路基分層沖壓,在要求土體中各點壓實度均達到規范要求時,路基沖壓最佳組合為虛鋪厚度80cm 、沖壓40遍;在只要求土體平均壓實度達到規范要求時,路基沖壓最佳組合為虛鋪厚度80cm 、沖壓30遍;大面積施工時,質量控制方法可按照在以沖壓遍數作為主要控制指標的同時,要求最後10遍分計沉降量小於累計沉降量10 ;在施工單位自己購置沖擊壓實機情況下,與傳統施工相比較,沖擊壓實技術是一種既能節約資金又能大量縮短工期的施工方法。Standard test method for thickness of resilient flooring materials having flat surfaces
表面平坦的彈性地板鋪面材料厚度的測試方法The current gpr data analyzing method for pavement thickness can only give the acceptable results for new asphalt concrete pavement, but for aged asphalt concrete pavement and cement concrete pavement, the accuracy is not satisfactory because of the theoretic modeling and data acquisition difficulties. the study on pavement compaction, moisture content and asphalt content is under exploration and the program for processing gpr data based on rigorous theoretic model can not be found in literature
由於理論模型及信號採集等方面的困難,現行路面雷達厚度分析方法僅對新鋪瀝青混凝土路面有相對較好的檢測精度,而對舊瀝青混凝土路面和水泥混凝土路面的檢測精度卻不能令人滿意,對路面其它技術指標如壓實度、含水量以及瀝青含量的研究還處于探索階段,建立在嚴密理論模型基礎上的數據分析軟體系統尚處于空白狀態。Periodic maintenance and rehabilitation can prolong the road ' s service life. an asphaltic overlay is applied to the old pavement surface in good time, which not only enhances the strength of the pavement, but also improves the using performance of the old pavement instead of doing lots of rebuilding works. therefore, the thickness of asphalt concrete overlays is less than the thickness of the reconstructed pavement
定期的養護與維修可以延長瀝青路面的使用壽命,及時地在瀝青路面上加鋪罩面,不僅可以增強路面強度,還可改善路面的使用性能,而不必做大量的重建工作,其厚度也小於重建施工的厚度,因此對于已破損的路面,採用瀝青混凝土罩面常可以提供最經濟的修復形式。It is shown that the bruises of geogrid are decreased if sheep - foot roller is used when lay - down thickness deeper than 30cm. the deformation of geogrid mainly comes of construction. the infiltration of rainwater is disadvantage for the stabilization of geogrid reinforced embankment
研究表明:在填土虛鋪厚度大於30cm的情況下,採用羊腳碾壓路機碾壓能有效減小土工格柵的損傷;實際工程中土工格柵的變形主要來源於施工的影響;雨水的入滲對土工格柵加筋路堤的穩定性極為不利;水泥土是經濟合理的坡面防護措施。In the present dissertation, the densification mechanisms and the structure controlling of various transient layers of w - mo - ti flier - plates with graded wave impedance were mainly investigated. wholly dense w - mo - ti flier - plates were then prepared by powder stacking and hot - pressing. in order to achieve a required wave impedance profile and a quasi - continuous change along the thickness direction, the ratios of components in transient layers were well adjusted
論文採用粉末冶金方法,詳細研究了w - mo - ti體系梯度飛片材料中各組元的燒結緻密化機理與控制方法,以精細控制不同配比的混合粉末的鋪填方式與鋪填結構來減小梯度飛片材料內部波阻抗值的躍變幅度,成功制備出波阻抗按指定分佈特徵沿厚度方向準連續變化的、波阻抗面平行度高並且整體緻密的w - mo - ti體系梯度飛片。But it, s on the other hand in foreign countries, hi view of this, a me 1 hod of design of cement concrete pavement based on the poor concrete base was proposed after calculating and comparing with different methods. it adopts the merits and discards the weaknesses of each technique both in theory and in experience. and it will offer a good reference to the construction of cement conorete pavement in future
針對目前國內水泥混凝土路面設計方法側重於理論分析,而國外水泥混凝土路面設計方法側重於實踐經驗的情況,本文分別採用國內外多種水泥混凝土路面及加鋪層設計方法進行計算和對比,充分吸收各種設計方法的理論和經驗,取長補短,互為補充,從而提高了適合以貧混凝土為基層的水泥混凝土路面面板厚度的設計方法,為今後水泥混凝土路面的建設提供了有益的參考。By comparing and analysing the computed results and the change of the raised permafrost table, a concl usion is gived that the roadbed with insulations on the permafrost protects the permafrost well under itself, and the rational position and thickness for insulation were suggested
通過對計算結果和多年凍土上限變化的分析比較,得出了在多年凍土區路基中鋪設保溫材料對路基面下多年凍土具有明顯的保護作用,總結出在多年凍土區路基工程中鋪設保溫層的合理厚度與位置。Textile floor coverings - determination of the apparent effective thickness of the backing
鋪地織物.襯里表面有效厚度的測定Textile floor coverings - determination of the apparent effective thickness of the backing ; german version en 1318 : 2005
鋪地織物.襯里表面有效厚度的測定分享友人