特重荷載 的英文怎麼說
中文拼音 [tèzhònghézǎi]
特重荷載
英文
extra-heavy loading-
By the check - out, inspection and measurement to start construction the industrial art to this test pile with the examination between stake body mass and bearing power, made sure the stroke reasonable operation method drilling under the dissolved cavern geology term ; the pier foundation loading test expressed the lading and rub the lading that resistance drag a glazing for of relation, and to the borehole cast - in - place concrete pile in the karst terrain deliver with break the mechanism, the characteristic of bearing power, proceeding the spot test job of the full of result ; the test data expresses the stake side friction resistance to rises with a bat batch terminal friction resistance very important function, the of tip of pile resistance drag occupies the proportion very few
通過對本次試樁施工工藝的檢測和樁身質量及承載力的檢驗,確定了沖擊鉆在溶洞地質條件下的合理使用方法;基樁承載實驗表明了荷載與摩擦阻力之間的關系,並對巖溶地區的嵌巖灌注樁的荷載傳遞和破壞機理、承載力特性,進行了富有成果的現場測試工作;試驗數據表明樁側摩阻和支盤端阻起很重要的作用,樁端阻力所佔比例甚少。這與設計樁基時的計算模式相差很大,承載力也較設計增加;使用力學數值分析方法和有限單元法,對鉆孔灌注樁樁端下的巖體強度和結構穩定性方面進行模擬計算和定量研究。Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外,本文採用隨機有限元方法,將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量,應用蒙特卡洛理論進行計算機隨機取樣,對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估,得出了襯砌的相關位移與內力的均值和方差,並計算出了相應的襯砌結構可靠指標。This paper, in the light of the special geological environment and actual project situation of the three gorges reservoir area, puts forward a comprehensive analysis and evaluation system suitable for the stability analysis of the bank landslide of the three gorges reservoir area under the premise of thorough consideration of the water influence on the stability of the bank landslide, and obtains the following achievements in several aspects that have the practical application significance and certain scientific research value : ( 1 ) it is discovered that the water activity is the primary factor of the formation of the new landslide and the revival of the ancient landslide. on the one hand, the rising underwater level reduces the actual stress of landslide ; on the other hand, the long time soaking of the underwater reduces the mechanics intensity of the landslide and the slide belt, both of which reduce directly the landslide stability ; ( 2 ) in view of the special condition of the three gorges reservoir area, this paper analyzes systematically the forces acted on the landslide of the three gorges reservoir area and the force varieties acted on the divided landslide when the water level changes between 175 meters and 145 meters. thus it is more scientific and comprehensive for the analysis of the forces acted on the landslide ; ( 3 ) this paper summaries systematically 10 kinds of typical computation projects by organic combinations of different kinds of situations in the dry season ( nature statue ), rainy season ( rainstorm or rains for a long time condition ), with 175m water level in the reservoir, during the earthquake, with the water level of the reservoir adjusted from 175m to 145m and so on, and produces
本文針對長江三峽庫區特殊的地質環境與工程實際情況,在充分考慮水對庫岸滑體穩定性影響的前提下,提出了一個適用於長江三峽庫岸滑坡體穩定性分析的綜合分析評價體系,並取得了如下幾個方面具有工程實際意義和一定科學研究價值的研究成果: ( 1 )研究結果發現,水的活動是新滑坡形成或古滑坡復活的主要因素,一方面是由於地下水位升高降低了滑坡體的有效應力,另一方面是由於地下水的長期浸泡降低滑體及滑帶的力學強度,這兩方面的因素均將直接降低滑坡的穩定性; ( 2 )針對三峽庫區的特殊條件,系統分析了作用於三峽庫區滑坡體上的力系和庫水位在175m與145m間變化時滑體條塊的受力變化,從而使對作用於滑坡體上的力系分析更科學、更全面; ( 3 )通過對滑體處于旱季(天然狀態) 、雨季(暴雨或長期降雨狀態) 、 175m庫水位、地震以及庫水位由175m調節下降至145m等各種不同情況的有機組合,本文系統地歸納總結出了10種典型計算工況,並具體給出了相應的作用荷載的計算方法,使在庫區岸坡滑體穩定性分析評價時對計算工況選擇及其作用荷載的計算更具規范性; ( 4 )具體運用c + + builder開發了關于滑坡體穩定性綜合分析評價系統,使對滑坡體穩定性分析計算更方便、更準確; ( 5 )將上述滑坡體穩定性綜合分析評價系統應用於重慶市豐都縣名山滑坡穩定性分析的具體事例中,分析結果表明,本文所提出滑坡體穩定性綜合分析評價方法對三峽庫區的滑坡穩定性分析是實用可行的。On the basis of the study of traffic features of heavy - load vehicles, the vehicle weight data and the axle - load spectrum of different vehicles were collected for some typical heavy - duty roads in china, and according to the features of heavy - loading pavement, deficiency of the former load - figure are analyzed and new figures which are suitable for heavy - load pavements are put forward. meanwhile, based on the research of the cement concrete fatigue equation and the damage mechanism of asphalt pavement under heavy - load vehicles, axle load conversion equations fitting for heavy - load cement concrete pavement and asphalt pavement are established respectively by further analysis. in addition, design indices, traffic and material parameters and structural combination for heavy - load pavements are discussed in this paper as well
本課題針對重載道路路面設計中所存在的問題,從重載交通特性出發,收集分析了國內幾條重載道路的交通及軸載組成情況,根據重載交通的特點,分析原有荷載圖式的不足,提出了適合於重載瀝青、重載水泥混凝土路面的荷載圖式;同時,在重載水泥混凝土路面疲勞方程及重載瀝青路面破壞機理研究的基礎上,通過對重載路面軸載換算公式的進一步研究,分別提出了適合於重載水泥及重載瀝青路面的軸載換算公式;此外,本文還對重載水泥、重載瀝青路面的設計指標、交通參數、材料參數及結構組合等方面進行探討,系統地提出了重載路面的設計方法,並使之有效地運用到工程實踐中。In chapter 3, the subgrid eddy - viscosity model for large eddy simulation is applied to calculate the three dimensions unsteady periodic turbulent flow in yantan francis turbine. the pulsating characteristics of some main physical parameters in flow field are found. the calculated axial water thrust of hydraulic turbine agrees with the model - test value
第三章採用大渦模擬亞格子渦粘模型,對巖灘混流式水輪機的流場進行三維非定常湍流分析,得到了流場中各物理量的脈動特性,計算出ms的軸向水推力與模型試驗值大小相當;同時論證了對于下機架承重的混流式水輪發電機組可採用其推力軸承負荷作為水電站廠房振動的最大垂直激振荷載。4. wind load has great influence on construction, but the self error of casting girder and basket load have greater influence, especially, basket falling is directly responsible for the safety of construction
4 .得到風載對施工期可靠度影響比較大,而已澆梁段的自重偏差和掛籃荷載影響很大,特別是掛籃跌落直接關繫到施工期橋梁的安全性。The characteristics of longitudinal and lateral frame columns are different from general frame columns, due to the high depth - to - width ratio of cross - sections and withstanding large vertical loads. the axial compressive ratio is a very important factor in columns design
縱、橫向框架柱具有與一般框架柱不同的特點,如柱截面高寬比較大,且承受很大的豎向荷載,其軸壓比設計問題是柱設計的一個非常重要的因素。Because of the difference of shape character and function between arch dam and gravity dam, the effect of loads, such as seepage pressure and gravity in arch dam, is smaller than that in gravity dam, but, the thermal load and dam contraction are turned into main loads
由於拱壩的體形特點和工作原理與重力壩不同,所以在拱壩中滲透壓力與重力等作用荷載的影響要比在重力壩中小,而溫度荷載及壩體混凝土收縮則上升為主要荷載。Author also stressly calculates plane deformations of skew girder bridge due to the actions of the subordinate phase dead load, temperature changes, shrinkage and creep of concrete and vehicle loads in different places, and thereby analyses the characteristics of plane movement for the skew girder bridge
作者還著重對斜梁橋的二期恆載、混凝土收縮、徐變、溫度變化和不同位置汽車荷載作用下的平面變形進行計算分析,由此分析斜梁橋的爬移特點。So it is quite important for sfrc to be used in those essential parts, such as the vicinity of frame column or shear wall in basement. the sfrc greatly improves the punching shear carrying capacity in raft foundation, or reduces the thickness of raft foundation in the same load. this in turn offers convenience in construction, reduces hydration heat in concrete and saves investments
因此,將鋼纖維混凝土用於特別需要的那些部位顯得尤為重要,比如用於筏形基礎的框架柱或剪力墻附近,大大提高基礎的抗沖切承載力,在荷載一定的條件下可減小筏板的厚度,將會給施工帶來方便,減少水化熱,節約建設投資。Vibrating dynamic characteristics have been unknown but important in the modeling and mechanical analyses of large hydraulic generators
摘要在對水輪機進行力學建模和分析時,其振動荷載特性往往是未知的,但卻是十分重要的。Lou wen - juan, jin hu, chen yong, et al. wind tunnel test study on wind load characteristics for double - skin facade building with rectangular shape j. journal of building structures, 2005 ( 1 ) : 65 - 70
樓文娟,李恆,魏開重,等.典型體型高層建築雙層幕墻風荷載特性的試驗研究j .哈爾濱工業大學學報,待發表Secondly, the mechanical respond of a typical asphalt pavement structure under heavy load was analyzed according to multilayer system elastic theory and characteristics of heavy loads, and analysis method of ultimate bearing capacity of asphalt pavements was advanced
其次,利用彈性層狀體系理論,根據重載的荷載特性,分析了典型瀝青路面結構在重載下的力學響應,研究了瀝青路面極限承載力的分析方法。Wind tunnel investigation of large span flat roof was carried out. mean local shape factor and extreme local shape factor distributed on the roof of the structure with two exposures are measured. effects of terrain exposures on the mean local shape factor and extreme local shape factor are discussed
然而,對于大多數的屋蓋結構,由於其自身結構和風荷載的復雜性,我國的有關荷載規范中並沒有這方面的建議條文,因此對于大跨度屋蓋結構風荷載特性的研究,已成為一項急需進行的重要課題。This thesis started with the analysis of traffic data collected on several typical roads in hunan province. the axle load distribution and characteristics of heavy load asphalt pavements were studied
本文從對湖南省內幾條典型道路交通調查資料的分析入手,首先研究了重載瀝青路面的軸載分佈及荷載特徵。In this paper, the traffic surveys and analysis of typical heavy - load road were performed firstly ; also the characteristics of traffic, load and distribution of axle load were studied. the deficiencies in the calculation method of surface equivalent modulus of foundation in present specification of cement concrete pavements design for highway were analyzed. based on the elastic multi - layer theory and principles of displacement equivalence, and a great amount of computing data, a calculation method was established
本文首先從典型重載交通道路的交通調查與分析入手,研究了重荷載交通道路的交通量、軸載分佈及荷載特徵,針對現行設計規范中關于基層頂面當量回彈模量值計算公式存在的不足,利用彈性層狀體系理論,按照彎沉等效原則,通過大量的計算分析,回歸出了精度較高、適用范圍更廣的基層頂面當量回彈模量計算公式。Concrete filled steel tube ( cfst ) arch bridge is a new type of bridge which is widely applied in china recently, and it is a relatively ideal structural form for long span arch bridge. with the background of the practice of liantuo bridge, in the view of point of feasible in technology and reasonable in economy, the key techniques and difficulties in the construction of cfst arch bridge are analyzed and discussed in the thesis. the disadvantages in the current design and construction and the improvement method are also indicated
本文以蓮沱特大橋工程實踐為背景,以主拱施工研究為主線,對鋼管混凝土拱橋重難點施工工藝,從技術上可行、經濟上合理的角度出發,詳細的進行了分析闡述,並指出了設計施工中存在的不足和今後需改進的方向;通過對鋼管混凝土拱橋施工過程中內力的計算,確定了拱肋施工最不利荷載工況下加載重量、壓重順序和張拉臨時預應力束等一系列施工措施,並將計算結果與現場監測觀測數據進行了比較分析,為今後進一步研究這類結構提供了參考。But the double arch bridges have demerits, for the design lever and the load criterions on the low side then, and the steel is scarce in the structure. when the bridges are loaded heavily, and in heavy traffic for long time, most of them are damage
但是限於當時設計水平和荷載標準偏低,結構鋼材用量少,雙曲拱橋存在著先天不足,特別是在長期重荷載、大交通量的運營情況下,大部分雙曲拱橋都出現了不同程度的病害,許多已成為危橋。Bond behaviors of the interfaces between 3 surface patterns of prestressing tendons and concrete were compared, the bond mechanisms between the helical prestressing tendons and concrete were explained, and the main influencing factors on bond anchorage performance were discussed
根據試驗結果,給出3種高強預應力鋼筋在等幅重復荷載作用下的特徵荷載值與應力水平上限的關系式。The peculiar mechanical character about pumping liquid concrete is discussed. based on the supposition that the ability of transferring hydraulic pressure of liquid concrete is orthotropic and the friction forces exists between concrete and steel tube, the pressure formulas of liquid concrete and the allotting formulas of deadweight are reasoned out. a new method is brought forward for allotting deadweight of liquid concrete during simulation analysis in pumping - core - concrete construction phase, which improves the calculation precision
在探討泵送液態混凝土的特殊的力學性質基礎上,在假定液態混凝土傳遞壓強能力為正交各向異性、混凝土與鋼管壁之間的存在有摩擦力的前提下,推導出液態混凝土壓強公式和自重荷載的分配公式,提出了在進行鋼管內混凝土灌注過程的施工模擬分析時處理液態混凝土自重荷載分配的合理方法,從而提高施工模擬分析的計算精度。分享友人