脆性土 的英文怎麼說

中文拼音 [cuìxìngtǔ]
脆性土 英文
friable soil
  • 脆 : 形容詞1 （容易折斷破碎） fragile; brittle 2 （較硬的食物容易弄碎弄裂） crisp 3 （聲音清脆） （of ...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. It can be seen from the results that the control beam had good plastic property in the static failure experiment after two million fatigue loading circles. all specimens with corroded main bars were failure under the fatigue loads within one million fatigue circles. fatigue lifespan of reinforced concrete beam was sharply shortened after main bars corroded in it and the beam was destroyed bristly without any prediction

    試驗結果表明，振動測試不能夠對銹蝕鋼筋混凝土梁的疲勞破壞做出可靠的預測;對比梁在經過200萬次疲勞循環加載后的靜力試驗中仍表現出良好的延性破壞特徵;銹蝕梁在100萬次疲勞循環內均因主筋疲勞斷裂而破壞;主筋銹蝕使得梁的疲勞壽命急劇縮短;梁發生脆性破壞而沒有徵兆。
  2. But high strength concrete has many defects itself. mainly foy : with higher strength be much fragility ; the final strength increments are smaller for high volume silica - ash concrete ; because high strength concrete ’ s self - shrinkage is large, so the deformation performance is much severely with the strength increments

    而高強混凝土又有其自身缺陷，主要是:強度越高，脆性越大;摻入硅灰量大的高強混凝土，後期增長減小;由於高強混凝土自收縮大，因而變形性能也隨強度等級的提高而變得嚴重。
  3. There are certain difficulties in studying the failure process of frangible materials such as concrete, rock, etc which are caused by dynamic loads such as collision, earthquake, exploding, etc by those current exited numerical methods like finite element method etc. so in order to solve such a problem we should introduce certain new numerical analysis method

    現存的一些數值方法如有限元法等在研究混凝土、巖石等脆性材料在沖擊、爆破、地震等動荷載作用下的破壞過程問題中存在著一定的困難。因此，對於此類問題需要新的數值分析方法。
  4. In the first part of this dissertation, theory of fracture mechanics of the frozen soil has been presented. a general strength theory based on fracture mechanics was proposed, and the validity of the theory using in frozen soil was discussed. the fracture toughness values for different kinds of cracks extension were determined, such as the plane strain fracture toughness for mode i cracking ( kic ), fracture toughness for mode cracking of frozen soil and the intersection of frozen soil and concrete

    論文第二章為凍土斷裂力學的基本理論，包括斷裂力學在凍土研究中的工程適用性、條件適用性、平面應變斷裂韌度測試的適用條件等，給出了凍土斷裂韌度k _ （ c ） 、 k _ （ c ） 、 -型復合斷裂測試的基本原理及試驗方法，並基於weibull脆性破壞理論推導了凍土三點彎曲試樣k _ （ c ）尺寸效應系數，為後面的工作提供理論基礎。
  5. Binary medium modeling of the brittleness variety of geomaterials under different stress paths

    巖土材料不同應力路徑下脆性變化的二元介質模擬
  6. A general consensus exists related to the influence of slow crack propagation ahead of the crack tip upon the nonlinearity observed in the typical load - deflection response of the concrete specimen, namely, concrete exhibits somewhat quasibrittle behavior, which has been verified by the inapplicability of the conventional linear elastic fracture mechanics ( lefm ) and fracture models suitable for metal - like materials

    現在已經意識到，混凝土在其典型的位移曲線中呈現出的非線性特徵是由於裂縫在端部的緩慢擴展引起的，可以認為是混凝土的一種半脆性性能。這是在發現傳統的線彈性斷裂力學（ lefm ）和適合金屬類材料的斷裂模型不適用於混凝土研究時得出的結論。
  7. Products function : put our “ sun shine ” brand carbon steel fiber evenly seep into concrete to form steel fiber reinforced concrete and it can decrease the thickness of reinforced concrete by half, it not only shorten the project time, save the material and manpower expense, bring distinct economic benefit, but also increase the performance of crack resistance, percussion resistance, tensile strength, bend resistance. scosspr resostamce amd wear resistance of the reinforced base materials. if the weight ratio of 2 % steel fiber seep into the concrete, it can solve the brittleness problem of the concrete, in the condition of 60 % ralative air humidity, after 21days air - dry, even 520 days air - dry, it ' s difficult to find any crack by eyesight, the bend resistance for the steel fiber concrete is 140 times stronger than the concrete without steel fiber, the capability of impact resistance increase 10 times

    產品功能：將本公司「雙興」牌碳鋼纖維系列產品均勻地摻入混凝土中，形成鋼纖維增強混凝土，可使工程中鋼筋混凝土的施工厚度降低一半，不僅縮短了施工工期，節省了材料和人工費用，帶來顯著的經濟效益，且增強了基體的抗裂、抗沖擊、抗彎、抗剪、耐磨擦等性能，如摻入本公司2 %鋼纖維的混凝土，不僅解決了混凝土的脆性問題，在空氣相對濕度60 %的條件下風干21天後，甚至在風干520天，肉眼很難發現裂縫，摻入鋼纖維后的增強混凝土比不摻鋼纖維的混凝土抗彎強度提高140倍，耐沖擊荷載提高10倍。
  8. Principle : it is adoping tattered dose to blend inner place the pouing perforate against water, utilizes such water action to come into being swelling the pressu ` re, by the rock, confuses soil forms piece and so on the brittleness substance distends to crack either cuts

    原理：它是採用破碎劑與水混合灌入鉆孔中內，利用其水化作用產生膨脹壓力，將巖石、混泥土構件等脆性物體脹裂或切割。
  9. The complicated compositions and properties of concrete, a kind of brittle material, have an important influence on its sawing process, and consequently on the sawing efficiency of diamond blade

    混凝土是一種特殊的復合脆性材料，其組分和性質的復雜性嚴重影響了金剛石鋸片鋸切加工過程，降低了金剛石鋸片的使用效率。
  10. The research of high performance pavement concrete ( hppc ) is done in two sides. one is mixture design, the other is pavement performance. the mixture design and design flowchart of hppc is given on the base of nc with the consideration of characteristic of both hppc and nc. the grow law, influencing factor and formation mechanism of hppc strength is analisised by perpendicular experiment. in the same, the fatigue equations are set up for hppc and hppc i on the base of fatigue experiment. the fatigue mechanism of hppc is analysised by damage mechanics and fracture mechanics. brittleness, frost resistance and abrasion resistance of hppc is researched with the camparition to nc i. at last, the economic analysis of hppc is done by two kinds of way

    結合高性能混凝土與普通路面混凝土的特點，提出了建立在普通路面混凝土基礎上的高性能路面混凝土配合比設計方法，給出了設計流程；通過正交試驗（強度試驗） ，分析了高性能路面混凝土的強度發展規律、影響因素與形成機理；同時，根據疲勞試驗結果採用雙參數weibull分佈模型分別建立了高性能路面混凝土和高性能路面混凝土（沒有摻加硅粉）疲勞方程，應用損傷力學和斷裂力學，分析了高性能路面混凝土的疲勞機理；並採用了對比分析方法，研究了高性能路面混凝土的脆性、抗凍性和耐磨性等。
  11. Failure or even collapse of bridge structures in past earthquakes were largely. in particular, shear failure of short bridge pier columns is the most dangerous failure pattern due to the brittle nature. consequently, it is quite meaningful to study the seismic resistance performance and retrofitting for reducing bridge damages and losses

    從已建橋梁在歷次地震中破壞的共同特點可以看出:現代混凝土橋梁結構中，因鋼筋混凝土橋墩破壞導致橋梁嚴重破壞甚至倒塌，已成為橋梁震害的主要特點，特別是橋梁短柱的破壞尤為嚴重，而脆性剪切破壞是鋼筋混凝土短柱最為危險的破壞方式之一。
  12. But the questions of buildings cracking of hsc are very serious. it brings people a lot of trouble and unnecessary loss

    但是，其存在自收縮開裂、濕漲開裂以及脆性等缺點大大影響了高強混凝土的工作及使用性能。
  13. The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels

    實驗結果顯示：鋼渣摻合料能顯著減緩水泥漿體水化速率，降低砂漿的水化溫升並延遲最高溫升時間；補償混凝土收縮，提高混凝土密實度，加強纖維與水泥石的界面粘結，增強混凝土力學性能，但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應，增韌鋼渣防滲抗裂混凝土；增加混凝土的破壞極限能，極大提高混凝土抗彎曲能力和韌性指數，改善混凝土脆性。
  14. Standard test method for hydrogen embrittlement resistance for steel wire hard drawn used for prestressing concrete pipe

    預應力混凝土管用冷拉鋼絲耐氫脆性的標準試驗方法
  15. Test results indicate that the flexibility of asphalt concrete can be increased at lower temperatures when polyester fibers are used, and the stiffness of asphalt concrete is reinforced at higher temperatures

    結果表明，聚酯纖維摻入后能峰低瀝青混凝土低溫時的脆性，提高共高溫時的勁度。
  16. The descending part of the curves are much sharper than the ones under the normal temperature. the ductility of the concrete will also get worse and the brittleness will increase

    應力?應變曲線形狀隨負溫值的增大變得高而窄，曲線的下降段比常溫陡直，混凝土的延性變差，脆性增大。
  17. The cohesive theory has proved effective in the simulation of complex fracture processes including : the fragmentation of brittle materials ; dynamic fracture and fragmentation of ductile materials ; and the dynamic brazilian test for concrete

    已證實此理論對復雜的斷裂過程的模擬是有效的，包括：脆性材料的斷裂、韌性材料的動態斷裂和破碎、混凝土的動態bazilian測試等等。
  18. Therefore water jet is a good unconventional tool for hard, fragile and very difficult to cut materials, e. g. composite, concrete, ceramics and stone materials etc

    高速水射流尤其適用於高硬度、高脆性難加工材料、復合材料、鋼筋混凝土、陶瓷、石材等的切割加工。
  19. The use of high strength concrete in building constructions has many advantages, such as reducing sectional size of component evidently, alleviating the structure self weight and retrenchment the use of reinforcing steel bar, thus the economic benefit is distinct but the brittleness of high strength concrete causes anxious about its use in the earthquake - resistant structure

    應用高強混凝土可以顯著減小構件的截面尺寸，減輕結構自重和鋼筋用量，具有明顯優點，可獲得較高的經濟效益。但高強混凝土的脆性引起人們對其用於抗震結構的擔心，強度等級愈高，胞性愈大。
  20. Because of its many excellent advantages, hpc has come to be used in a wide range. but the existed projects show it ' s weakness, such as the brittleness and the tendency to early age cracking of hpc is more serious and sensitive than ordinary performance concrete ( opc )

    高性能混凝土由於其優異的性能得到了越來越廣泛的應用，但已有的工程實踐中也相繼暴露了hpc的一些弱點，如高性能混凝土的脆性和易於收縮開裂的傾向可能比普通混凝土更嚴重。
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