縫裂形的 的英文怎麼說
中文拼音 [fénglièxíngde]
縫裂形的
英文
hysteriform-
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。The calculation results indicate that the outboard of drum walls fall in plastic yielding at the same time the rising cooling water reaches the height of that point and the yield region becomes narrower and narrower when it comes closer to the circumferential strake weldments, which explains the reason coke drums experience bulging and cracks occur in the weld seams portions of shell to shell after long in service
計算結果表明:塔壁外側在冷卻水面到達的瞬間進入塑性屈服,筒節中部塑性屈服區較大,當靠近焊縫時塔壁的塑性變形區逐漸縮小直至消失,塔壁塑性屈服區的分佈特點解釋了塔體長期使用后發生鼓凸變形及簡體與焊縫連接處產生裂紋的原因。Main achievements of the thesis : through analysis of the reasons of blockwork crack, i put forwards the measures on material production, shop drawing design and construction management, etc. especially, i put forwards to theory that changing traditional painting technics to avoid crack of painting layer. the application of above measures in engineering proved they are effective
介紹了砌塊在國內外的發展與應用,研究了混凝土裂縫產生的機理,裂縫的形態及裂縫產生的原因,進一步分析研究了砌塊墻體開裂的各種因素,提出了在設計、生產、施工等環節的治理開裂措施。When the depth of the horizontal fracture is not same as that of the source, the fracture can be clearly observed in the snapshots, and a reflected wave appears in the waveforms
當水平裂縫與聲源深度不同時,在波場圖中可清楚地觀測到裂縫;波形圖上會出現明顯的反射波。Through flat experiment and circle experiment, we research the causes of cracks before hardening of concrete and after. through ingredient experiment, we research the influence of shrinkage from some ingredient ( coal ash, crushed stones and fiber ). in addition, we test some methods of construction to strengthen the anti - crack capacity of r. c. slab in building sites
通過平板試驗和圓環試驗,研究了混凝土在終凝前和終凝后裂縫的各種影響因素;通過摻合料試驗,研究混凝土的一些摻合料(粉煤灰、碎石和纖維)對其收縮變形的影響;另外,還在施工工地進行一些增強樓板抗裂能力的構造措施試驗。With the increase of the number of large - span large - area and large - space buildings in cities, temperature cracks of cast - in - place slab with large - area draw more and more public attentions. this problem has become a difficult nut in the engineering practice
隨著大柱網、大空間結構形式的各種公共建築和工業廠房的不斷涌現,大面積現澆樓蓋結構也得到了日益廣泛的應用,而其裂縫引起的質量問題更是越來越受到各方面的重視,成為實際工程中急需解決的難題。According to different failure mechanism and displaying part, the failure modes are divided into plate end debonding failure and intermediate crack induced interfacial debonding failure
這種粘結破壞按形成機理及破壞部位的不同可分為板端剝離破壞和跨中受彎裂縫導致的粘結破壞。When mass concrete forms, defects will produce such as some micro crack resulting from the different temperature between the surface and the inside. how this micro crack forms and develops is a very important subject hi materials
混凝土結構、尤其是大體積混凝土結構在澆築成形的過程中,由於受到內外溫度變化的影響從而使混凝土體內或表面形成細微裂隙等缺陷,研究細微裂縫(微裂紋)的形成與發展在混凝土材料學中是一項十分重要的課題。Thereafter, the fractal dimension value of cracks distribution was presented as an effective index to appraise the corrosion level. relations between fractal dimension and rebar corrosion ratio, concrete deterioration factor and strength of the member were studied respectively. fractal nn model was also built up to predict the ultimate load bearing capacity of crc members obtained from the field corroded structures, good results are achieved, which could provide an applicable method to evaluate the durability of crc members
揭示出受腐蝕鋼筋混凝土構件在荷載作用下表面裂縫分佈服從統計意義上的分形,並對其進行了分形描述;提出以裂縫分形維數作為受腐蝕程度的有效衡量指標,首次實現了構件受腐蝕程度的定量描述;建立了裂縫分形維數與鋼筋銹蝕率、混凝土劣化系數、構件承載力之間的定量關系,並建立了分形神經網路模型對實際受腐蝕鋼筋混凝土構件進行了極限承載力的預測,取得了較好的預測效果。Therefore, the scientific scholarsboth at home and abroad have been carried series of research work since the 1960s, with some defects still remaining unresolved. the objects of this research are : ( 1 ) to analyze the course of the crack, itsappearing and development, and discuss the major factors influencing the behavior ofthe negative moment region in continuous composite beam. ( 2 ) to establish the modeand formulas of the crack width by the theoretical analysis
本文研究的主要目的是通過對組合梁負彎矩區裂縫的出現、發展的過程分析,討論影響鋼-混凝土連續組合梁負彎矩區受力性能的主要因素,建立了組合梁負彎矩區裂縫計算模式和裂縫寬度的計算公式,並初步探討了連續組合梁合理截面形式。Typical examples include the xidatan palaeo - seismic fracture zone, seismic fracture zone of the kunlun ms 8. 1 earthquake occurred in november 14, 2001, the south hohxil palaeo - seismic fracture zone, seismic fracture zone of the bengcuo ms 8. 0 earthquake occurred in 1951 and seismic fracture zones along normal fault in east of the nyainqentanglha mts. caused by jiuzila ms 7. 5 earthquake occurred in 1952 and yangbajain ms 8. 0 earthquake occurred in 1411
典型地震破裂包括西大灘古地震破裂、昆侖山南緣地震破裂、可可西里古地震破裂、崩錯地震破裂、谷露盆西地震破裂、羊八井當雄盆西地震破裂;地震破裂規模大,產狀穩定,與地震鼓包、地震陡坎、地震凹陷有序組合,是地表構造變形的重要形式,屬內動力成因地裂縫。Permafrost fracture and ice fracture are both the result of freezing expansion without evident relation to tectonic deformation and regional structures
凍土裂縫和冰裂縫屬外營力成因地裂縫,是凍土與冰層不均勻融凍變形的重要表現形式。A 1 / 7 - scale model of three - bay, three - span frame - bent r. c. structure is the first and the largest size in the same testing field in china by now. following studies are chiefly conducted in this chapter : the mechanism behavior of the structure under horizontal earthquake load, including the characteristics of seismic force, the deformed performance, yielding sequence, energy dissipation capacity etc. ; the changing rule of the dynamic characteristics and the stiff degrading in different experimental stages ; the location of the weak stories and the seismic capacity of the structure
在試驗中主要研究了以下內容:在水平力作用下框排架結構的整體變形能力以及各層的層間變形的大小;框排架結構在不同階段的動力變化規律;框排架柱的變形和承載能力;錯層對結構性能的影響、模型結構裂縫開展過程及塑性鉸形成的先後順序、不同階段該結構的剛度退化規律及滯回耗能特性等。According to the re1ated suppositions and formu1as, the experiments about the effects of 1oad difference between vertica1 and horizontal masonry wa11s to top cracks are drocessed
根據相關的假定和公式,進行了砌體墻體豎向壓縮變形差異對頂層裂縫影響的試驗。As we all know that damage constitutional law of concrete is fit for solving mass little cracks situation, that fracture mechanics model is fit for solving only a few cracks situation, that separate crack model is only fit for dealing with those cracks whose locations is known firstly. but these situations do n ' t reflect the crack characteristic of the steel liner - reinforced concrete penstocks of the three gorges. so, this paper adopts the smear crack model to simulate crack
基於損傷力學模型更適合解決成群微裂縫問題,斷裂力學模型更適合解決少數裂縫情形,離散裂縫模式只能解決裂縫位置預先知曉的情形,這些都不符合三峽水電站鋼襯鋼筋混凝土引水壓力管道的裂縫特點,為此本文採用彌漫裂縫模式來進行裂縫的數值模擬,該裂縫模式能解決裂縫位置預先不知曉的情形,且能連續分析而無須重新劃分網格。Phase space reconstruction technique is used to reconstruct the phase plane. the approach to detect the abnormal point of the tune - dependent of the crack by phase space is developed. combined with gray system and catastrophe theory, according to observation data of dam cracks, a gray cusp catastrophe model is established to diagnose the abnormality of the crack
( 5 )利用相空間重構技術重構裂縫時效變形的相平面,提出了裂縫時效轉異點的相平面識別法;並且基於突變理論和灰色系統理論,建立了裂縫轉異診斷的灰色尖點突變模型;並將以上方法和模型用於工程實際,由此對所提方法的可行性進行了驗證。3 after analysed the deformation of the structures and fractures, predicted 2 - d fractural degree through the study of natural fracture net, indentified and evaluated fracture though logging data, analysed 3 - d seismic coherence data > counted the dip angle " s of strata etc, the distribution of fracture is pointed out, the prediction methods which combined with geological and geophysical technologies of the fractural zones in the tight sandstone is also presented
3通過構造及斷裂形變分析、天然裂縫網路二維裂縫度預測、測井裂縫識別與評價、地震三維相干分析、地層傾角計算等預測裂縫分佈區,提出地質裂縫預測技術和地球物理裂縫預測技術相結合的緻密砂巖儲層裂縫發育帶預測方法。The test results indicated that : crack similitude of reinforced concrete simple beams is not equal to model scale under the working load ; when the amount and surface shape of reinforcing bar are same, the similitude of crack width, crack amount and crack spacing of reinforced concrete simple beams of different scales are all nearly equal to the square root of model scale ; when the amount and surface shape of reinforcing bar are different, the similitude of crack amount and crack spacing are still nearly equal to, whereas the crack width is not only approximately proportional to, but the influence of the amount and surface shape of reinforcing bar on crack width should be considered also at the same time
試驗結果表明:在使用荷載下,鋼筋混凝土簡支梁的裂縫相似率並不等於幾何相似比;當鋼筋根數及形式相同時,不同模型比尺下的鋼筋混凝土簡支梁的裂縫寬度、裂縫條數及裂縫間距的相似率,均約等於模型幾何相似比的平方根;當鋼筋根數及形式不同時,裂縫條數及裂縫間距的相似率仍然約等於,而裂縫寬度的相似率近似與成正比,但應同時考慮鋼筋根數與鋼筋表面形狀對裂縫寬度相似率的影響。Secondly, the producing mechanism of crack in reinforced structure and factors which affect crack have been discussed, in the emphasis, the method is expounded, which applies first releasing then resisting, combination of releasing and resisting. in the method, flexible slit is applied firstly, which can make deformation of structure distributed, and decrease deformation energy, then the tiny expansion concrete and prestressed concrete with unbonded tendons are applied. and in the different phase, the compressive prestress is put on the concrete structure
其次,分析並論述了鋼筋混凝土結構裂縫產生的機理和影響因素,著重闡述了「利用先放后抗,抗放結合,綜合控制」的方法:即首先利用后澆帶,使混凝土結構分段變形,減小超長變形的影響;並採用微膨脹混凝土技術及無粘結預應力混凝土技術,分階段對混凝土結構施加一定的預壓應力,從而減小或完全抵消混凝土結構因混凝土硬化收縮引起的拉應力;再結合一些其他措施,成功實現鋼筋混凝土結構的超長無縫設計與施工。Abstract : the effective width model based on the surface topography of natural fracture, which is closely related to the mechanical and hydraulic characteristics, is established on the theories of fluid mechanics and oil / gas flow in porous media. the study aims at improvingformation damage control and temporary plugging technology for fractured reservoir
文摘:在考慮裂縫表面的實際微觀形態的情況下,採用流體力學與滲流力學相結合的方法,提出了可為裂縫性儲層保護實施暫堵技術提供定量依據的有效寬度數學模型。分享友人