軸向主應力 的英文怎麼說
中文拼音 [zhóuxiàngzhǔyīnglì]
軸向主應力
英文
axial principal stress-
Obtain these chief research achievements. ( 1 ) the method of hydraulic fracturing, kaiser effect experiment and the finite element numerical simulation computation results, the direction of maximum horizontal principal stress intersect the small - angle of tunnel axial line, it is favorable to the stability of tunnel peripheral rock ; according to the test rust of field stress - relief method, at the present time, zhe gu mount tunnel have n ' t access to high crustal stress site, maximum principal stress magnitude is 17mpa ~ 20mpa
主要獲得以下研究成果: ( 1 )綜合水壓致裂法、室內巖石kaiser效應試驗和有限元數值模擬計算研究成果,最大水平主應力方向與隧道洞軸線小角度相交,對隧道圍巖穩定性有利;根據現場應力解除法測試結果,目前鷓鴣山隧道尚未進入高地應力段,最大主應力量級為17mpa 20mpa 。The results show that the main factors influenced structural earthquake are earth damage degree, fault length stress and an angle between extend stress axes and fault strike
研究結果表明,地殼損傷程度、斷層長度、應力及拉應力軸與斷層走向之間的夾角是影響構造地震的主要因素。The result show, most of the medium - strong earthquakes faults are dip - slip reversed, distribution of the main stress p axis is sector from west to east ; there are large difference between kuche and baicheng region in seismic activities, but the characteristic of cluster is same in the two region ; the distribution of medium - strong earthquakes is nw direction in baicheng region, it show, there can have a concealed fault ; small earthquake clusters ' activities can reflect the effect that local medium - strong earthquakes to the secondary small structure around it
結果表明:南天山東段中強震震源斷錯以傾滑逆斷為主,主壓應力p軸由西到東呈扇形分佈;相距較近的庫車與拜城地區地震活動存在較大差異,但均存在明顯的成叢性分佈特點;拜城地區中強地震分佈呈北西向可能預示著該區存在隱伏斷裂,小震群活動則可能反映了局部中強震對周圍次級小構造的影響。In this section the author analyses the rules of the pile ultimate tip resistance and the shaft friction resistance distribution and their exertion of cast - in - place socketed piles instrumented with strainometers in soft muddy rock. the second aspect of the paper is the analysis on the current rock pile vertical bearing capacity in the four standards gb50007 - 2002, tb 10002. 5 - 99, jtj024 - 85 and jgj94 - 94, then the design method with correlated formula of socketed piles in xigeda - mudstone is given. at the end of this paper, based on the research of pressure grouting technique in recent years, and combined with in - site test result, this paper puts forward the design and calculation method to grouted pile in xigeda - mudstone and the principle of choosing grouting parameters, which provid es experiences for applying this technique and further studying
本論文結合省級科研項目「西攀高速公路昔格達組泥巖層中鉆孔樁提高承載力的研究」 ,所做的研究工作主要在以下三個方面:一是根據8根樁身內埋設量測元件試樁的單樁豎向靜載荷試驗資料,分析了各試驗樁特別是常規沖孔灌注嵌巖樁在昔格達泥巖中的軸向力、側摩阻和樁端阻力的分佈和發揮規律;二是在討論現行規范對嵌巖樁承載力的計算公式的基礎上,探討了在昔格達泥巖層中的沖孔灌注嵌巖樁的側摩阻和端阻的計算方法,並推薦了相應的計算公式;最後,在吸取近年來對灌注樁后注漿技術研究成果的基礎上,結合現場試驗研究結果,分析了該項技術在昔格達巖層中的應用效果,提出了相應的參數選取,從而為壓力灌漿技術的工程應用和進一步研究提供經驗,並為今後在該地層中合理選用樁型以及指導施工提供了依據。In other words, the process of analyzing relaxation zone related to one safety factor can also be regarded as the process of searching potential slide surface related to the same safety factor. elastic wedge model is used for analysis of relaxation zone of cutting homogeneous slope. on the basis of elastic plane - strain theory, the relaxation zone can be calculated according to mohr - coulomb or drucker - prager law and single tension intensity principle which are both related to one safety factor after three - dimensional stress field of the cutting slope is got
提出均質邊坡開挖鬆弛區可以用彈性理論中的楔形體理論分析,在平面應變問題的基礎上得到開挖坡體的三向應力場之後,可運用考慮安全儲備后的強度條件(主要為摩爾?庫侖或德魯克?布拉格強度準則和單軸抗拉強度準則)解析坡體分步開挖過程中的鬆弛區范圍,給出了具體的計算步驟,並通過算例較詳細地說明了操作過程。According to the documentation collected from domestic and abroad wang wei dong who works in huadong architect and structure institute utilizes the similar work property between the underground continuous wall and pile subjected the vertical loads, and introduces poulos method of elasticity and plastic which applies to pile foundation into the calculation for subsidence of underground continuous wall. pujialiu and yu yuzhou from water and electronic engineering of qinghua university, according to the result of three axes, define the concrete parameter utilize the model of non - linear e - b combined with the design cross section of dam in xiaolangdi, yellow river accept the total stress programme of thepd dam, and we analyze the stress and displacement of plastic concrete diaphragm wall by finite element method in comparison with the result of common concrete one. at same time, we consider the effect of the character of plastic concrete diaphragm wall which is composed of different gradients and adopting the level of stress and pulling stress infers whether the plastic concrete diaphragm wall is safe or not
地下連續墻是一種歷史較短的施工方法,目前,砼防滲墻的設計還是以傳統的設計方法為主,根據查找國內外文獻資料,華東建築設計院王衛東利用地下連續墻與樁在豎向荷載作用下的工作性能有相似性,將適用於樁基的poulos彈性理論引入對地下連續墻的沉降計算中;清華大學水利水電工程系濮家騮、于玉貞根據三軸試驗結果確定混凝土的參數,利用非線性e - b模型,結合黃河小浪底土石壩設計剖面,採用thepd土石壩總應力程序,對深覆蓋層塑性混凝土防滲墻的應力、位移進行有限元分析,並與普通混凝土防滲墻計算結果加以對比,同時分析了不同配比塑性混凝土特性的影響,並採用應力水平和拉應力數值來判斷塑性混凝土防滲墻的安全程度。Establish geometry model of hyperboloid clutch with rollers with differential geometry. we know that the line of tangent is beeline and validate it with matlab. in the base of above research, establish movement model of hyperboloid clutch with rollers and find the relation between force of outer race and moment of inner race
在上述研究的基礎上利用運動轉化原理建立了內外環與滾柱之間的運動模型,並利用微分幾何的相關知識通過對施加在外環上的主動軸向力的分解及合成,求的其在內環上所產生的力學反應,建立雙曲面滾柱加載器力學模型。A valid method to make the anisotropic deformation behavior of load bearing unit clear is to research principal stress and principal strain relationship, and true triaxial test is a necessary means
弄清受荷單元的主應力主應變關系是認識各向異性變形性狀的有效方法,而真三軸試驗是必要的手段。Former true triaxial test research have been lack of the completely study on soil anisotropic deformation characteristic on condition that load in each of the tree principal stress direction because of their different research purpose
由於研究目的不同,以往真三軸試驗研究中缺乏針對三主應力單向加荷時的土體各向異性變形特性較全面的研究。Secondly, true taixial test by load in three different principal stress direction for study on soil anisotropic deformation characteristic are processed. lateral deformation relative to load direction, lateral deformation relative to lateral direction and the stess - strain relationship in load direction are analyzed, and soil anisotropic deformation characteristic on the three aspects of elastic ratio, poisson " s ratio and the property of compliment matrix are completely analyzed too
其次,為揭示土體各向異性變形特性,有針對性進行了三主應力分別單向加荷的真三軸試驗研究,分析相對于加荷向的側向變形、互為側向的側向變形、不同主應力加荷向的應力應變關系各向異性性狀。Some problems from the principal stress axis rotation experiment with hollow cylinder apparatus are analyzed in detail herein ; which consists of three aspects, such as the preparation of the hollow cylinder sample and the acquisition of the isotropic one ; the estimation and elimination of the size effect and the end effect in the experiment ; and the membrane penetration effect on both the drained and the undrained tests results, etc
摘要詳細分析了採用空心圓柱儀進行主應力軸旋轉試驗遇到的若干問題,主要包括三個方面:空心圓柱試樣制備及各向同性試樣的獲得;試驗中尺寸效應、端部效應的考慮與消除;空心試樣膜嵌入效應對排水、不排水試驗結果的影響等。The soil ' s stress path has important effects on the retaining wall ' s lateral deformation and the soil ' s deformation during the excavation of foundation pit. an experiment simulating the soil ' s stress path behind the wall has been carried out with the stress - controlled triaxial instrument. the principle stress ratio keeps constant during consolidation and the soil samples are permitted to drain during unloading process
利用應力式三軸儀對基坑開挖過程中圍護結構后側土體變形影響較大的因素:土體的應力路徑進行了試驗模擬,試驗是在等主應力比固結后側向卸荷而軸壓不變的排水情況下進行的。In this paper, three - tower building with name of oriental tunes square in xiamen is analyzed by the international current program sap2000, considering seismic action in two directions. by structural modeling and calculation, the characteristic of vibration of the multi - tower structure is analyzed, the influences of the rigid ratio of the enlarged base to top tower and translation - torsion coupled effects among several towers are investigated, the inter - story displacement, displacement of the top tower and deformation of tower ' s base floor in x and y major orientation under earthquake action are contrasted with those under wind load. at last, the distributing characteristics of stress of transfer plate and of the normal, shearing stress of mostly vertical elements under earthquake action are studied
本文以具有3個塔樓的廈門東方時代廣場為分析對象,採用國際通用有限元分析軟體sap2000進行結構建模和分析,考慮雙向地震動輸入,研究結構的振動特性,分析底盤與塔樓剛度比對結構的影響以及多塔之間的扭轉效應和平扭耦聯作用,對比風荷載和地震作用下塔樓在兩個結構主軸方向的層間位移、頂點位移以及塔樓底層的變形,分析地震作用下轉換層樓板的應力分佈特點及主要豎向構件的正應力和剪應力分佈特點。The reliability is validated further on. 3. the static loading test is modeled by plaxis, based on this, the basic bearing mechanism is analysed which comprise the rule of the load - settlement curves, inner and outer friction resistance, end bearing, stress distribution along pile depth and the dissipation of excess pore pressures
應用plaxis程序模擬單樁靜載荷試驗的過程,並根據計算結果較為詳細的分析了pcc單樁的基本承載特性,主要包括荷載?沉降曲線的特徵、樁壁內外側摩阻力的分佈、樁端阻力的分佈、樁的軸向荷載傳遞以及孔壓消散規律等。3. as for side web girder, the principle of minimum potential energy has been introduced. by assuming different displacement function, the force and stress formulae for flanges under uniform loading, horizontal axial force, or vertical concentrated force have been derived
對于邊主肋截面主梁,本文介紹了能量變分法,通過假定板不同的軸向位移函數,推導了懸臂梁在均布荷載、水平軸向力、豎直集中力作用下的微分方程和應力計算公式。Second, the thermoelastic coupling vibration of cylindrical shell are discussed by means of the same method. the coupling coefficient, amplitude of temperature, initial displacement, ratio of length to radius and that of radius to thickness are main factors which influence the thermoelastic vibration of cylindrical shell ; the higher the coupling coefficient is, the lower the axial force, the axial stress and the axial moment are
其次,我們用同樣的方法研究了圓柱殼的非線性熱彈耦合振動,主要結論如下:影響圓柱殼非線性熱彈耦合振動的因素主要有耦合系數、溫度幅值、長徑比、徑厚比以及初始位移參數;耦合系數越大,軸向應力、軸向力以及軸向彎矩越小。Axial principal stress
軸向主應力Geometric nonlinear behaviors in large span cable - stayed bridges have been analyzed in this paper, which include the sag of inclined cable stays caused by their own dead weight ; the interaction of large bending and axial deformation in bending members ; and the large displacements effects. then analyzing theories and researching levels of geometric nonlinear problems of modern cable - stayed bridges have summarized. and methods of modeling cable - stayed bridges for nonlinear finite element analysis have been discussed, which are the equivalent modulus of elasticity, introducing stability functions and continuously modifying geometry of structure
本文分析了大跨徑斜拉橋幾何非線性的主要影響因素,包括斜拉索的垂度效應、彎矩與軸向力組合效應和大變形效應,同時對目前斜拉橋幾何非線性問題的分析理論和研究水平進行了綜述,相應討論了各非線性影響因素的處理方法,即分別採用等效彈性模量法、引入穩定性函數和實時修正結構的幾何位置。The mechanism of physical damage of carbon fibers was clarified firstly. the precursor which attached on carbon fibers changes to inorganic ceramic under high temperature with large volume shrinkage which appearing at cracks with fiber traction and the cracks are mainly vertical to fiber axis. because of mismatched coefficients of thermal expansion, carbon fibers suffer multiple thermal stresses and are damaged
首次探明了碳纖維熱應力物理損傷機制,即碳纖維表面附著的先驅體在高溫下無機化形成陶瓷體,同時伴隨著大的體積收縮,在碳纖維的牽引下,基體的體積收縮以開裂形式出現,裂紋的取向以垂直於纖維軸向為主,由於碳纖維與基體熱膨脹系數失配,致使碳纖維在降溫過程中受到復雜熱應力,引起碳纖維損傷。For hyperboloid and highpoint shape membran structures, the influence of different parameter to the character of the structures under load is calculated and discussed. the main axid of material should not be neglected. the effect to membrane strucutres of the wind load is prominent
對雙曲形和傘形索膜結構,分別計算了索膜結構在不同參數下的結構響應,得到了各個參數對結構靜力性能的影響,指出了膜材主軸方向在靜力分析中不可忽視。分享友人