塑性加固的 的英文怎麼說
中文拼音 [sùxìngjiāgùde]
塑性加固的
英文
plastic-reinforced-
Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先,在前人研究成果的基礎上,對錨桿與圍巖的相互作用機理進行研究,利用全長錨固錨桿的中性點理論,從等效均化的角度來考慮錨桿對圍巖的加固作用,並推導了在簡單荷載作用下,含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解,對工程設計有著重要的參考意義;在數值模擬方面,以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎,利用虛功原理推導了接觸問題的有限元方程的計算格式,為開發運用大型商用有限元軟體msc . marc提供了理論根據,也形成了本文的理論基礎:最後,論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例,利用本文所述的接觸問題的摩擦模型理論,對錨桿支護結構的應力場、位移場的變化規律進行了研究,分析了加錨支護對隧洞圍巖應力、變形的影響。For jiangpinghe double - curved arch dam, 3 - d elasto - plastic fem is made, in which the point safety factors of the dam - abutments system and the safety margin for coefficients of sliding resistance on 7 potential sliding blocks of the dam before and after the reinforcement of the dam are calculated under the conditions of the normal storage level and the design flood level respectively based on the results from the analysis made with fem
摘要對江坪河雙曲拱壩進行了三維彈塑性有限元分析,利用有限元應力成果分別計算了正常蓄水位、設計洪水位等3種工況下加固前後壩體壩肩系統的點安全系數和7個可能滑動塊體的抗滑富餘系數。It is found that the electric, field improves elongations in 2090 and 2090 + ce alloys markedly, especially in 2090 alloy, but has little effect on strengths. at the same time, the electric field lessenes percentages of intergranular delamination and increases transgranular fracture and microscopic plastic deformation. besides, the electric field makes both average particle size and its distributing range of 8 " phase smaller, and reduces the half width of pfz in aged alloys
研究表明:固溶電場可顯著提高2090合金及2090 + ce合金的延伸率,尤其是對2090合金,但對強度則無明顯的影響;同時,固溶電場減少合金的沿晶分層斷裂比例,並增加穿晶斷裂及微區塑性變形;固溶電場還使合金時效后相顆粒的平均尺寸減小、尺寸分佈范圍減小,並使pfz的寬度減小。Phbv will degrade at the processing temperature, which is much lower than its acute thermal degradation temperature. as the material for chemical fiber, phbv shows some special properties. when it was spun, the as - spun fiber was elastic and finally it would turn to be rigid
作為化學纖維的原料,此類材料的初生纖維在固體狀態表現出的由彈性行為為主向塑性行為為主的轉變直至最後表現為剛性體特徵,直接影響著此類纖維的成形加工過程,成為其進一步發展的瓶頸障礙。Consideration of the additional axial, two angular deformations generated by the bond slipping in anchorage zones of joints, the assumption is made, that the plane section of either end of a member before bond slipping of reinforcements remains afler bond slipping of reinforcements. additional deformations * contribution to stif ? nesses of plastic sub - elements is formed from the boundary nonlinearity of plastic stabelements. the space bond slip relation can truly compute bond slip in anchorage zones, additional def ? rmatinns, and their contribution to the space nonlinearity of a niember, has used iii space nonlinear analysis of columns and spandrel beams in this dissertation
附加變形對塑性子區域的剛度貢獻,看作是塑性子區域的邊界非線性,建立了構件端部子區域基於構件邊界非線性的鋼筋與砼之間的空間粘結滑移關系,能較真實地求得錨固區的粘結滑移、附加變形以及他們對構件空間非線性性能的貢獻,並運用於柱、裙梁的空間非線性分析之中。The electric field strengthens the laminate boundary of 2090 alloy. the laminate strengthening mechanism translates into boundary strengthening and grain inner toughening with more ductility fracture and less intergranular fracture. the ductility property is enhanced with no change of intensity
對鋁理合金sem實驗發現,電場固溶和時效強化了晶界,和晶內塑性的改善,斷裂特徵出現由分層沿晶斷裂向塑性斷裂轉變,斷麵塑性變形特徵增加。We research the causes of concrete cracking, develop the high performance anti - cracking additive, optimize the concrete mix and construction techniques, increase the stability of concrete volume by shrinkage compensation, enhance splitting tensile strength, and can meet demand of high workability of fresh concrete. in the study, a thorough investigation of this problem is made from all points of view, with the aid of various modern measurement & testing technology and different theories & methods in surface physical chemistry, structural chemistry, solid - state chemistry, composite materials, fracture mechanics, etc. our research results have shown that the various shrinkage of concrete cause concrete cracking in building engineering, such as autogenous shrinkage, dry shrinkage, temperature shrinkage, plastic shrinkage, carbonized shrinkage, etc
目前,解決混凝土開裂的方法是綜合的,我們調查研究了混凝土開裂的原因,開發研製了高性能抗裂外加劑,優化混凝土的設計和施工方法,並通過補償收縮達到混凝土體積穩定,提高抗裂強度,滿足混凝土拌和物高工作性能的要求。本研究採用多種測試技術,應用表面物理化學、結構化學、固體化學、復合材料學、斷裂力學等多學科的理論與方法,從不同的角度進行深入的研究和探討。通過調查研究建築工程中出現的混凝土開裂、滲漏問題,發現混凝土在非荷載作用下開裂主要是由混凝土的自收縮、乾燥收縮、溫度收縮、塑性收縮、碳化收縮等各種收縮變形引起的。( 1 ) systematic triaxial compression tests are made for the sand reinforced by various national geosynthetics. comprehensive investigations into the interaction characteristics are also made between sand / lime fly ash and various national geosynthetics by direct shear tests and pull out tests, which can help choosing geosynthetic type and understanding the geosynthetic reinforcement mechanism ; ( 2 ) this paper is also firstly systematically presents the results of a comprehensive investigation into the interaction characteristics between lime fly ash and various national geosynthetics ; ( 3 ) by non - linear fem, the influence of the modulus of geosynthetics, the thickness of the soft ground and the width of the foundation on the effectiveness of geosynthetic reinforcement are also studied ; ( 4 ) the main conclusions are as followed : ( geotextiles are likely to be suited for projects allowing high displacement, polyester warp knitting geogrids and oriented geogrids for projects allowing medium displacement, glass fiber geogrids for projects allowing low displacement and geonets for secondary projects. ( the confining effect of fill material to act on different kinds of geosynthetics varies largely, which must be considered
( 1 )本文利用三軸壓縮試驗,比較各種國產土工合成材料對砂土的加筋效果;利用直剪試驗和拉拔試驗,比較各種國產土工合成材料與砂土或石灰粉煤灰的界面摩擦特性,深入研究土工合成材料的加筋機理,首次明確提出加筋土工合成材料的選型原則; ( 2 )本文首次系統地研究了石灰粉煤灰與各種國產土工合成材料的界面摩擦特性; ( 3 )本文採用有限元法,系統研究了加筋模量、軟土地基厚度、基礎寬度等因素對土工合成材料加固軟土地基效果的影響; ( 4 )本文主要結論如下: (無紡土工織物適合用於允許大變形的加筋土工程;滌綸纖維經編土工格柵和塑料拉伸土工格柵適合用於對變形有較嚴格要求的加筋土工程;玻璃纖維經編土工格柵適合用於對變形有嚴格要求的加筋工程;土工網適合用於低等級的加筋土工程。This paper summarized the characteristics of continuous fiber reinforced thermoplastic matrix composite ( cfrtp ), the development of its raw materials, the existing preparation techniques at home and abroad and its application foreground in civil engineering field
摘要本文綜述了加固用連續纖維增強熱塑性樹脂基復合材料( cfrtp )預製片材的特點、原材料的發展情況、國內外現有的制備技術。The quality and performances of non - woven fabric and plastic core board place an important role in speeding up the consolidation of soft soil foundation
無紡布濾膜和塑料芯板的質量與性能,對排水板在軟基加固工程中能否發揮其加速軟土固結排水的功能至關重要。A design example is introduced in this paper where the concrete watertight wall with low elasticity module is used to strengthen the earth - rock dam of qing shan reservoir, and it is a new type of concrete watertight walls whose elasticity module and crush strength of its wall material lie between normal and plastic concrete
本文是關于用低彈模砼防滲墻加固青山水庫土石壩的設計實例,其墻體材料的彈性模量和抗壓強度界于普通和塑性混凝土之間,是一種新型的混凝土防滲墻。Thermoplastic phenol - formaldehyde resin bond synthesized by solution po1ymeization is commonly used in making diamond grinding wheel, which has disadvantages such as : absorbing moisture, difficult mixing, can not being long term store, needing curing agent, and giving off dangerous gas
目前,金剛石樹脂砂輪普遍採用溶液聚合熱塑性酚醛樹脂作結合劑,此結合劑存在著易吸潮結團、混料困難、不易長期存放,需加固化劑才能固化,且固化過程中有大量的有害氣體溢出,使用時需要加工成粉末等缺點。Application of seepage control wall technology of plasticity concrete in strengthen engineering of xiangshan reservoir
塑性混凝土防滲墻技術在象山水庫加固工程中的應用The unconfined compressive strength, shearing strength and permeabi lity of stabilized soils were tested in laboratory, the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared. the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil. with the increase of water content, porosity ratio, degree of porosity, plasticity limit, liquid limit and liquid index, the compressive strength of cement - sodium silicate - stabilized soil decreases, while increases as the bulk weight and compressibility modulus
通過對水泥?水玻璃加固土的無側限抗壓強度試驗,以及用不同酸堿性水製成與養護的固結土所進行強度對比試驗,得出軟土的物理力學性質指標與加固土的抗壓強度之間存在一定的相關關系,即隨著含水量、孔隙比、孔隙度、液塑限及液性指數的增加,水泥?水玻璃加固土的抗壓強度相應地降低;而隨著原狀土的容重、壓縮模量的增加,水泥土的抗壓強度也隨之增加。At last, the analysis of the redistribution of the initial crust stress and the distribution of the plastic area is made ; the stability evaluation of the rock mass around the cavern is provided. the outcome is conformed with the reality. then applys the approximately equivalent dissolved rule, and considers the action of anchor staff to consolidate the rock mass, and correspond model is established, nonlinear finite element m ethod is applied to analyze the effect of the supports, the result shows that the action of anchor staff is obvious and deformation and stress state of the rock mass is greatly approved. so, the result conforms that the idea and the means used in the thesis is applicable
最後運用非線性有限元對廠房開挖后圍巖的應力重分佈和塑性開展區的分佈作了分析,評價了廠房的圍巖穩定性,其結果與實際開挖情況基本吻合,針對圍巖穩定性評價的結果,提出了錨固方案,運用等效概化原理考慮錨桿的作用,建立了採用系統錨桿加固后的地下廠房圍巖的三維彈塑性模型,運用非線性有限元分析了加固效果,結果表明錨固作用明顯,圍巖變形明顯減小,圍巖內的應力狀態大為改善,從而驗證了本文所採用的研究思想和方法是切實可行性的。Sico singe gmbh & co. kg is one of the reliable industrial companies in the range thermoplastic processing as well as acrylic glass processing, thermosetting plastic processing and also deep - drawing parts
Kg是一家現代化的、可靠的產品供應商,這家供應商從事丙烯酸樹脂玻璃製作、有機玻璃製作,熱固性塑料加工,熱塑性塑料加工,深沖工件的製造、銷售。請您訪問我們的主頁,垂詢當前的產品系列和服務。The main elements distribution has no change and the tem results show that subgrain boundary is blurred with more dislocation. the electric fields have the same effect on ly12 alloy as to 2090 al - li alloy with enhanced ductility and more toughness socket on fracture surface
Ly12合金在電場作用下表現出和鋁理合金類似的組織和性能的變化規律:合金的強度值升高不明顯,塑性在電場固溶和時效下有較大的提高;在斷裂特徵上表現為韌窩增加。( 2 ) the failure mode, strength, stiffness, energy capacity and ductility of the columns with glass fiber reinforced polymer were described in details to investigate the seismic behavior and mechanism of columns under cyclic load
而纖維增強塑料( frp )的復合材料加固方法由於其具有輕質高強、易於現場施工和良好的耐腐蝕性等優良性能,在工程界逐漸得到廣泛應用。The formula of ultimate flexural capacity is given according to plastic principle
通過塑性鉸理論,推導了加固後梁的承載力計算公式。The stress of the surface course and nails transfer diffusion, i. e. the surface course and nails transfer the excavating load to the soil that is restricted, so soil among more area take action, which slower the extend of the plastic area, and restrict the increase of the plastic deformation
面層、釘體的應力傳遞擴散作用,將坡面開挖荷載傳遞到土釘錨固區內土體,調動了更大范圍的土體抗力,減緩了塑性區域的擴展,限制了塑性變形的增加。分享友人