劈理強度 的英文怎麼說
中文拼音 [pīlǐqiángdù]
劈理強度
英文
cleavage strength-
Stability of rock slopes is generally controlled by the structure of rock masses, especially the soft structure surfaces. analysis of rock mass structures is a key to establish geological models and numerical simulation and a foundation to assess the stability of rock slopes. the weak structure surfaces are mainly bedding planes, faults, joints, schistosity plane and contact zones of intrusive bodies. since they are different in genesis and scale, the rock masses are different in features and mechanical intensities. based on the combination of rock structure bodies, 15 basic modes of deformation and failure of rock slope are systematically summarized. the deformation and failure of rock masses actually result from the recombination and rearrangement of these rock bodies. there are 11 types of rock mass structures and various deformation and failure of bank slopes are present in the reservoir area of the three gorge project
巖體結構,特別是軟弱結構面對基巖斜坡變形與破壞具有顯著的控製作用,巖體結構模式分析是建立斜坡地質模型和數學模型的關鍵和評價斜坡穩定性的基礎。巖層層面斷裂構造節理裂隙片理與劈理以及侵入體和圍巖的接觸帶等是控制基巖斜坡穩定的軟弱結構面,這些成因不同大小不一的結構面將巖體分割成性質各異力學強度不均的各種巖體結構體,構成了15種基巖斜坡變形破壞的巖體結構基本模式。不同結構體的重新組合與排列是斜坡失穩的內在原因。Following is the factors ideating with the surface of old concrete in different way ( including brushing surface, chiseling surface, cleaving surface ), adherence agent ( including cement slurry, cement sand slurry, cement slurry with the u expansion agent ), the freeze - thaw circulation times and air - entraining. as a result, we found that the roughness influence on the adhesion capability of the new on old concrete to a large degree. the larger rougeness is, the larger the splitting tensile strength on the adhension face is. the kind of adhesion agent is also influence on the adherence capability of new on old concrete. the circulation times of freez - thaw have a large influence on the splitting tensile strength of adherence face of new on old concrete. the analysis of tests give some advices to the practical engineering
主要考察了老混凝土表面不同處理方式(刷毛面,鑿毛面,劈裂面) 、界面粘結劑類型(水泥凈漿,水泥砂漿, u型膨脹劑水泥漿) 、凍融循環次數等對新老混凝土粘結面劈拉強度的影響,以及凍融作用下新混凝土加氣對粘結面劈拉強度的影響。試驗結果表明,粗糙度對新老混凝土粘結性能有重要影響,隨著粘結面粗糙度的增大,粘結面劈拉強度不斷增加;界面粘結劑類型對新老混凝土粘結性能有一定影響,在凍融作用下, u型膨脹劑水泥漿粘結效果不如水泥凈漿和水泥砂漿;凍融循環對粘結面劈拉強度有較大影響,加氣能明顯改善新老混凝土粘結面的抗凍能力。The test shows that nominal transverse splitting strength of concrete cylinder is well correlated to the concrete cube strength and splitting strength of cube and cylinder, especially, above interrelation is more ideal when hold - down central angle is 90
經試驗證明,混凝土圓柱體的橫劈名義強度與混凝土的抗壓強度、立方體及圓柱體縱劈強度有很好的相關性,尤其當壓具圓心角為90時,上述關系更為理想。This paper mainly deals with the effect of hydrosoluble hp fibre, fibremesh and fdn on cement mortar ' s bend resistant strength and compressive strength under the same operating conditions and with different hp mixtures ; comparing fibremesh to hp, both of which have different effects on concrete ' s compressive strength, tensile strength and bend resistant strength ; and finally discussing hp ' s mechanism
本文主要研究了工作性相同、 hp摻量不同時水溶性高分子纖維( hp ) 、纖維網、 fdn高效減水劑對水泥砂漿抗折強度、抗壓強度的影響。同時對纖維網和hp增強混凝土的抗壓強度、劈裂強度、抗彎強度作了對比分析。最後對hp的作用機理進行了研究。The main content is : splitting tensile experiments were carried out about the standardized cube bonding specimens ( 150x 150x 150mm3 ) of the new - old concrete after high temperature. the temperature is divided into 9 groups from normal atmospheric temperature to 900, the cooling styles are natural cooling and spraying water cooling ; different interfacial treating methods : brushed with steel - wire brush, man - made chiseling ( not evenly ), man - made chiseling ( quite evenly ) ; different interfacial agents : no interfacial agent, neat cement paste, cement paste mixed with 10 % expanding agent
主要內容有:本文對75個高溫作用后的標準立方體新老混凝土粘結試件進行了劈拉試驗,溫度從常溫到900c分9個溫度段,降溫方式分自然冷卻和噴水冷卻兩種。著重考察了溫度、降溫方式、界面粗糙度及界面劑對新老混凝土粘結劈拉強度的影響規律,闡述了高溫后粘結強度下降的機理。The main contents that are researched in the thesis are : asphalt mixture low temperature crazing principle, the influencing factor of asphalt mixtures low temperature crazing, asphalt - rubber macadam, the pressure - resistance intensity, the crazing high temperature, the smooth - resistance and construction technology, the technological economical compare and so on, exploring the new - type structural combinations of asphalt pavement
本文研究的主要內容是:瀝青混合料低溫開裂機理,瀝青混合料低溫開裂影響因素,瀝青橡膠碎石,玻璃纖維瀝青碎石的高溫抗壓強度,低溫劈裂強度,抗滑性能及其施工工藝,技術與經濟比較等,探索新型的瀝青路面結構組合。Because of deposit the ground form, wide soft soil and large thickness, we should use the methods to set up the standard design., such as to change and fill out a stone, lump block of stone of the strong rammer and split off the thick liquid of note and so on
摘要深圳市港灣大道沿線屬前海灣沿岸海漫灘沉積地貌,軟土層分佈范圍廣、厚度大、性狀極差,闡述該路採用的換填塊石、劈裂注漿、插板排水堆載預壓、強夯塊石墩等地基處理方法,進行了標準設計。The grade composite, road performance and its mechanism are systemically studied. 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades. then the grade is verified and the relation between the grade and pore rate is studied statistically, the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content, thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper, it shows : asphalt paste, as well as the coarse aggregate skeleton, is essential to the mechanics of ogfc
在分析各國ogfc級配的基礎上,運用礦料體積法進行ogfc級配設計,用正交實驗對礦料級配進行了優化設計,運用數理統計方法分析礦料級配和孔隙率之間的關系,並回歸出礦料關鍵篩孔通過率與ogfc骨架空隙結構關系的數學方程,進而提出了ogfc的合理級配;通過對不同孔隙率典型級配混合料的性能研究,綜合力學和功能性能,得出了ogfc的合理孔隙率范圍:針對高速公路面層對ogfc力學性能方面的要求,本文從瀝青膠結材料、纖維穩定劑兩方面對ogfc的性能進行改善:通過sbs和橡膠粉復合改性的方法開發出了適合ogfc的高粘度改性瀝青,摻加聚合物纖維,提高ogfc的最佳瀝青用量,進而改善了混合料的高溫性能和抗水損害性能,優化設計出能滿足高速公路路用性能,車轍動穩定度達5000次/ mm以上,動融劈裂強度比90 ,透水系數31ml / s ,並具有防滑降噪功能的開級配瀝青磨耗層( ogfc )混合料。So both theoretical analysis and test show that concrete strength can be obtained by transverse cutting method
因此,理論分析與試驗結果都表明,可以採用橫劈的方法得到混凝土的強度。The influence factors of brittleness of hslc such as w / b ratio, sand percentage, type of aggregate and binder constitution are analyzed by the experiment : in order to improve the toughness of hslc, we study the function of fiber, polymer, aggregate and low - layer steel fiber on improving toughness, and explain the mechanism of improving toughness of them
最後採用這四種技術復合增韌,得到了和理想結構模型相符的高強高韌性輕集料混凝土,較基準輕集料混凝土抗壓強度增加16 . 3 ,抗彎強度增加97 ,沖擊韌性提高171 . 9 ;劈裂抗拉強度增加52 . 6 ,韌性指數提高19 . 2倍,並且具有耐久、經濟等優良性能。Abstract : in this paper, based on a lot of testing and analyzing results at home and abroad, working principle and failure mechanism of concrete and reinforced concrete are put forward, strength theory - wedge cleaving theory of local pressure of concrete and reinforced concrete are set up, and calculation formula and simplified calculation method of local pressure strength are developed according to extreme balance principle
文摘:本文根據大量試驗和國內外資料分析結果,提出混凝土及鋼筋混凝土局部承壓工作機理和破壞機構;建立混凝土及鋼筋混凝土局部承壓的強度理論? ?楔劈理論;並根據極限平衡原理導出局部承壓理論承載力計算公式和實用計算方法。After determined the proportion of furan resin concrete, it mixed with durafiber of vary content and vary length, then the most fitting length and proportion of durafiber were determined by testing its mechanical properties ( compressive strength, tensile strength and bending strength ). the mechanical properties of furan polymer mortar were tested also, which is mixed with durafiber of changeless length and vary content, and the most fitting content of durafiber was determined
研究確定呋喃樹脂混凝土的配方后,加入不同含量、不同長度的杜拉纖維,通過對其力學性能(抗壓強度、劈裂抗拉強度、抗折強度)的測試,確定杜拉纖維的合適長度和最佳摻量;在呋喃樹脂砂漿中加入不同含量、同一長度的杜拉纖維,通過其力學性能的測試,確定杜拉纖維的最佳摻量,探索了杜拉纖維增強呋喃樹脂混凝土(砂漿)的破壞機理。The main research outputs of this paper are as follows : l. baed on the choosing rational mix proportion, the influence of changing volume proportion of steel fiber on mechanical properties such as crushing resistance, splitting resistance, breaking resistance and bending resistance and the variation rule of mechanical properties are studied by experiment and theoretical analysis of 320 samples. according to experimental results of different layered structure of fiber - reinforced concrete, the influence of layered height on splitting strength and breaking strength is discussed. so it offers reliable reference to design road structure by using fiber - reinforced concrete
在選擇了合理的配合比基礎上,通過對320塊試件的試驗和理論分析,研究了鋼纖維體積率的變化對抗壓、劈拉、抗折以及彎曲韌性等力學性能的影響及變化規律,由不同分層試件的試驗結果,探討了鋼纖維混凝土的分層高度對劈拉、抗折等強度影響,為鋼纖維混凝土的路面結構設計提供了可靠的依據。The reasons of different pour direction effects for the cleavage strength has was analyzed, so did the mechanism of mechanical joint element in the cleavage test
分析了不同澆築方位對劈拉試件強度造成影響的原因以及機械連接件在劈拉加載時的受力機理。The cleavage strength test has been carried out to investigate the effect of pour direction for the strength of specimen without mechanical joint element ; the effect of mechanical joint element for the cleavage strength ; the effect of different materials which were used to embedding bars for the cleavage strength
對比了老混凝土表面處理相同的情況下,不同澆築方位對無機械連接件試件劈拉強度的影響;機械連接件對劈拉強度的影響;不同植筋材料對劈拉強度的影響。In this paper, the influences on concrete shrinkage and splitting tensile strength by the varieties and contents of the raw materials, such as cement, sand, fly ash, water - reducer and expansion agents, are studied. the possibility of the prevention of the concrete cracking by proper concrete proportion design is discussed
本文著重研究了水泥、砂、粉煤灰、減水劑、膨脹劑等材料的品種、用量對混凝土收縮性能及混凝土劈裂抗拉強度的影響,探討了通過合理的配合比設計達到減少混凝土收縮、提高混凝土劈裂抗拉強度進而降低混凝土開裂風險的可能性。2. the research results indicate that the physical mechanical properties of hbc concrete such as compressive strength, flexural strength, splitting tensile strength, elasticity modulus and etc. is equivalent to that of opc concrete at age of 28d and remarkably surpasses opc concrete at 90d though its early age strength ( 3d, 7d ) is relatively lower. moreover, the relation of w / c ratio of hbc with compressive strength as well as strength at 7d with 28d ( c50 - c80 ) has been established and the effect of the dosage and type of fly ash on compressive strength of hbc has also been studied
研究了高貝利特水泥高性能混凝土的抗壓、抗折、劈拉、彈性模量等一系列物理力學性能,結果表明,和opc混凝土相比, hbc混凝土早期( 3d 、 7d )抗壓強度、抗折強度、劈拉強度、彈性模量較低,但隨著齡期的增加, hbc混凝土28d諸項強度基本與之持平, 90d則全面超過opc混凝土;探討了高貝利特水泥高性能混凝土水膠比與28d抗壓強度的關系以及c50 c80強度范圍內高貝利特水泥高性能混凝土7d強度與28d強度的關系;此外,對粉煤灰摻量及品種對高貝利特水泥高性能混凝土抗壓強度的影響也進行了研究。分享友人