洞面角 的英文怎麼說
中文拼音 [dòngmiànjiǎo]
洞面角
英文
cavosurface angle-
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。Based on this milti - hierarchical model, application method for information organization of part is presented. chapter 3 proposes a new rule of arbitrary maximum angles of chord for triangulation and locale optimum, which avoides calculating angles of conventional methods in mesh simplification. moreover, with the introduction of arithmetical average windage concept, optimum method for the boundary mesh retriangulations is presented
第三章針對曲面網格簡化操作過程中出現的空洞剖分問題，討論層次模型的網格優化方法，提出了基於弦內角最大準則的局部網格簡化方法；針對網格曲面上存在的曲折邊界缺陷，提出以邊界輪廓算術平均偏差作為邊界曲折程度評定參數的邊界平滑優化剖分方法。Hole repairing in triangular mesh models and piecewise smooth b - spline surfaces fitting have been studied in this dissertation
本文對三角網格模型上的孔洞修補及分片光滑b樣條曲面的擬合技術進行了研究。Indeed, he obtained an oblique back view of the scenery and of the wings which had been strengthened, as it were, by a thick layer of old posters. then he caught sight of a corner of the stage, of the etna cave hollowed out in a silver mine and of vulcan s forge in the background
他看見的是布景的背面和側面，布景架的後面糊著厚厚一層舊海報，在舞臺的一個角落裡，埃特納火山的一個巖洞陷入在一座銀礦里，舞臺的最後邊有火神的煉鐵爐。This paper analyses the stress and deformation of the two lining structure types of the surge shaft surrounded with crush rock under the action of high water pressure by using fem, compares the two lining types ' s merits and demerits in stress, deformation, fracture state, the combining bearing of surrounding rock and lining structure, the safety and economics
本文針對圍巖條件比較破碎，裂隙發育的調壓井洞室結構，就兩種襯砌結構型式分別進行了高水頭作用下的有限元數值模擬，從調壓井襯砌結構選型角度分析對比了兩種襯砌結構型式在圍巖及襯砌結構應力與變形、襯砌結構鋼筋混凝土開裂、圍巖與襯砌結構聯合承載、結構安全儲備、經濟等方面的優劣。All of the hydraulic structures are arranged in the right bank and four underground seepage tunnels are arranged parallel in horizon, and the axle wires intersect with syncline axis almost perpendicularity, and with rock formation obtusely. complex underground tunnels are formed under such formidable conditions, and each of seepage tunnels crosses nuclear of syncline and comes up against interlaminar sharing disturbed belt at different footage
四條引水發電隧洞在平面上平行布置，軸線方向與本區構造線方向近於垂直，與巖層走向大角度相交，構成一復雜地下洞室群，並在不同洞段通過沙金壩向斜核部，且遭遇多條層間剪切錯動帶。Through discussion of numerical solution, the author get the effect of height of filled soil, size of culvert, width of valley, property of filled soil, construction procedure and techniques on soil stress of the culvert top ; 3. through the centrifuge test, the paper validates the reliability of numerical calculating on high - stack soil ; 4. the paper puts forward the simplified calculating method of soil stress of the culvert top on the foundation of numerical simulating and centrifuge modeling
通過對數值解的討論，得到填土高度，涵洞截面尺寸，溝谷底部寬度，溝壁坡角，填築體性狀，施工速度，地下水對豎向位移場及涵洞頂部土壓力的影響情況； 3通過離心機的模擬試驗，驗證了數值計算對高路堤的計算結果的可靠性； 4在數值模擬和室內離心機模型試驗的基礎上，提出了高填方涵洞頂部土壓力簡化計算方法。Culvert under high - stack soil is a ubiquitous phenomena in road constructions in mountain, self - compression of high - stack soil can not be ignored, soil pressure at the top of culvert is affected by many factors, including the height of high - stack soil, section size of culvert, width of the bottom of valley, grade of valley, property of filled soil, construction procedure and techniques
高路堤下埋設涵洞是山區公路建設的一種較為普遍的現象，高路堤自身壓縮較大，不可忽視，涵洞頂部土壓力的大小又受很多因素的影響，包括填土高度，涵洞截面尺寸，溝谷底部寬度，溝壁坡角，填築體性狀，施工工序與工藝等。My father was endeavoring to pierce with his eager looks the remotest verge of the horizon, examining attentively every black speck which appeared on the lake, while my mother, reclining by his side, rested her head on his shoulder, and i played at his feet, admiring everything i saw with that unsophisticated innocence of childhood which throws a charm round objects insignificant in themselves, but which in its eyes are invested with the greatest importance. the heights of pindus towered above us ; the castle of yanina rose white and angular from the blue waters of the lake, and the immense masses of black vegetation which, viewed in the distance, gave the idea of lichens clinging to the rocks, were in reality gigantic fir - trees and myrtles
我的父親坐在一個大洞前面，目光凝視遙遠的地平線，聚精會神地仔細觀察湖面上的每一個黑點，我母親靠在他身邊，頭枕著他的肩胛，而我就在他的腳邊玩耍，帶著天真的好奇心眺望著巍然屹立在地平線上的賓特斯山，那白皚皚稜角分明從蔚藍的湖面上高高聳起來的亞尼納堡，以及那一大片黯黑青翠從遠處看以為是附著在巖石上的苔蘚實際上卻是高大的樅樹和桃金娘。Seismic survey is a new method used to civil engineering area in recent years. it was widely applied to survey or detecting of roadbase, dam base, foundation of building, tunnel, river bed, lake bed and etc. the chief methods are reflection method, refraction method, wave velocity testing, surface ware survey and transverse wave suivey. seismic survey can divide different layer, measure the incidence of sediment stratum, detect the structure of rock, test the handle effect of surface wave survey, we can calculate the carrying capacity of foundation and other mechanical parameters. this technique can give service to some big engineering departments such as highway developing company, survey design company, water supply company, plan bureau, construct bureau etc
應用於工程的主要方法有反射波法折射波法波速測井面波法及橫波勘探等。地震勘探能詳細劃分地層高精度地確定沉積地層的傾角能夠準確探明巖體構造褶皺斷層破碎帶裂隙帶對于回填工程路基壩基，地震勘探可以檢測其回填處理效果對于隧道工程，可以探測隧道洞體的圍巖分類及洞口地質情況利用面波勘探所得到的瑞利波速度，可以準確推算地基的承載力動彈模量等力學參數。The rehabilitation agents that consist of epoxy resin emulsion and silicate, suspended substances and etc. used to rehabilitate the cement concrete in american and japan also gain good effect. because all kinds of diseases in the cement concrete pavement exist from south to
本文還介紹了kg型修復材料用於更換填縫料，對水泥混凝土路面板邊、板角、裂縫的修復和對水泥混凝土路面坑洞的修復等使用情況。Composed of mainly two scenic spots, namely the goat - horn cave and the double dragon valley shuanglong gu, this district is altogether no larger than 3 square kilometers. the smallest one in the yandang mountain scenic zone, however, it boasts almost every scenic aspects : peak, hill, cave, pond and waterfall and so on. on the otherhand, this is the area that is near the east china sea
這一景區由羊角洞和雙谷兩部分組成，合計不過3平方公里，是雁蕩山面積最小的一個景區，然而峰嶂洞瀑潭湖一應俱全，又最近大海，俯仰呼吸之間，盡是天風海雨潮聲蜃影，恰好應了某當代作家的一句名言：雖小卻好，雖好卻小。Based on the date of full - scale measurements, modeling wind tunnel tests and theoretical researches of the wind loads on low - rise buildings available, involved the date of the wind tunnel test and computational numerical simulation fulfilled in this paper, the effects of wind loads on low - rise buildings have been studied systematicaly and extensively. it reveled properly the principle of the changes of the surface mean pressures, local pressures, and fluctuating pressures with the building geometry, roof type and slope, wind direction, eave configuration, cladding system, and dominate openings
本文根據國內外有關低層房屋風荷載的全尺寸實測、模型風洞試驗及其理論方面的研究，包括本文進行的低層房屋屋面風壓分佈的風洞模型試驗和計算機數值模擬計算，對低層房屋的風荷載特性進行了系統而深入的研究，較好地揭示了低層房屋表面的平均風壓、局部風壓和壓力的波動隨房屋的幾何尺寸、屋面形式、屋面坡度、風向角、檐口構造、覆面材料和門窗開洞而變化的特點和規律。Based on wind tunnel tests, wind pressure distributions on cylindrical shells with different aspect ratios were measured simultaneously in wind tunnel with rigid models under different terrain types and attack angles
摘要基於剛性模型的風洞試驗，在不同風攻角及場地條件下，對考慮不同長跨比的柱面殼體表面風壓分佈進行了同步測量。Based on wind tunnel test and theoretical analysis, the vibration mechanism, vibration shape, dynamic response and equivalent wind load factor of the long - span grid roof of taizhou stadium subjected to wind excitation are analyzed systematically in this dissertation, and some valuable results are obtained. in the matter of wind tunnel tests, the distribution rules of roof under various wind directions are obtained through the data got from the wind tunnel tests for rigid model of long - span grid roof of taizhou stadium
在風洞試驗方面，通過對臺州體育中心屋蓋剛性模型在模擬大氣邊界層風洞中進行的不同風向角下的風洞試驗所得數據的研究，獲得了結構在各種情況下的屋面風壓分佈規律，並且繪制了臺州體育中心屋蓋在各個風向角下的屋蓋平均風壓系數和脈動風壓系數分佈等值線圖。Abstract : wind tunnel experiments were carried out to investigate the influence of wind direction on the wind pressure of proximite buildings. mean and fluctuating pressure coefficients on a high building, at sixteen different wind incidences and with one and two interfering buildings, were measured in the tests. this paper presents the characteristics of wind pressure on the building, which varies with the incident wind angle and with the numbers of adjacent buildins. due to the variation of wind angle and the interference effects, the complex feature of pressure distributions can be found on the downstream building surfaces for building group arrangement at certain angle of wind attack. some area of the interfered building for such configuration, in comparison with one single building ' s, may undergo very strong positive or negative pressures
文摘:通過風洞實驗研究了風向對兩個和三個鄰近建築風壓分佈的影響特性.實驗結果給出了在不同風向角下，作用於受擾建築上的平均和脈動風壓系數.當受擾建築處于下游位置時，建築之間的干擾效應主要表現為遮擋影響，建築物上的總體風壓系數不是很大，但在建築物表面上有時會產生局部較大的負壓系數.另外，在某些風向角下由於受到上游分離氣流的影響，在下游建築的局部表面又會出現較大正壓.這些結果可供建築布置和結構設計時參考The demonstration of heat - transfer measuring techniques and prospect of infrared thermal mapping techniques, main parts and performance indexes of a infrared camera, functional blocks and implementation of infrared processing software, experimental facility and measuring system of the wind tunnel has been made. the model emittance was experimentally determined and the three methods correcting directional emittance were compared. those problems of the infinite - slab model thickness and constant wall heat rates hypothesis, the determination of adiabatic wall temperature were discussed in a 1 - d heat conduction analysis
本文對紅外熱圖測熱技術與應用前景、紅外熱像儀主要部件與性能指標、紅外測熱數據處理軟體功能模塊與實現、風洞試驗設備與測量系統等進行了論述，測量了模型表面發射率並對發射率隨極角變化的三種修正方法進行了對比，對一維熱傳導分析中模型壁厚半無限假設、壁面熱流定常假設、絕熱壁溫選取等進行了探討。In common condition, corner fracture, abutment staggering, bumping up with pothole is a relatively common phenomenon
一般情況下，角隅斷裂、錯臺、路面拱起、路面坑洞輕微。The different drawbacks in the original design and construction of the emergency gate slot of the releasing tunnel of zhelin hydropower station in jiangxi province resulted in the disjunction of most slot corner plates under the parapet walls of two sides of the left hole and the damage of the second - phrase concrete in these slot corner plates, after the gate is closed and under the action of seepage water pressure
江西省柘林水電站泄空洞檢修門槽，由於原設計和施工均存在不同的缺陷，致使閘門關閉后，在滲透水壓作用下，造成左孔兩側胸墻以下大部分門槽護角板被擠壓脫開，護角板裏面的二期混凝土損壞。Burrs on edges and around holes shall be blunt enough as to not cut the hand when handled normally
但是在稜角和切割洞孔表面周圍的毛剌應鈍化，以保證在正常操作處理時不會割傷手指。分享友人