maximum principal造句
例句與造句
- Maximum principal effective stress
最大有效主應力 - Maximum principal stress theory
最大枝力理論 - Maximum principal deformation
最大咒形 - Deduction of failure criterion for geomaterials based on maximum principal shear strain
巖土材料最大主剪應變破壞準則的推導 - In the middle of tunnel , maximum principal stress at horizontal is bigger than that at vertical , the magnitude is 17 ~ 23mpa , which formed the high stress site
隧道中部大埋深地段，最大水平主應力一般都大于垂直主應力。量級在17 23mpa左右，屬于高應力地段。 - It's difficult to find maximum principal in a sentence. 用maximum principal造句挺難的
- ( 6 ) the principal stress direction arised deflexion obviously after excavation , the maximum principal stress paralled to opening , minimum principal stress vertical to sidewall or vault
( 6 )數(shù)值模擬研究表明，隧道開挖后，主應力方向發(fā)生明顯偏轉，最大主應力與開挖臨空面平行，最小主應力近于垂直。 - Taking protective measures can obviously reduce the face slab ' s surface temperature drop - out range and the maximum principal stress amplification caused by temperature sudden drop , and the stronger protective measures are , the more obvious reduced effect is
采取保護措施，可以明顯削減氣溫驟降所產(chǎn)生的面板降溫幅度及最大主應力增幅，保護措施越強其削減效果越明顯。 - A bearing surface transmits the interaction between an arch dam and its foundation , the strength of which directly affects the constraint of the bedrock to the dam , and thus affects the stress and deformation of the dam . the influence is studied in this paper with nonlinear finite element method , as an example , for a high arch dam in design . the results show that the influence on stress is only limited within the local area near the bearing surface , larger on the maximum principal tensile stress than on the principal compression stress , and the decrease of the strength does not cause unlimited increase of the maximum stress . the influence on the displacement of the top of the dam is smaller than that of the bottom of the dam , especially the relative downstream displacement . at the lower strength of the bearing surface , the relative downstream displacement at the bottom of the dam increases with the decrease of the strength
建基面是傳遞拱壩和基巖相互作用的紐帶，它的強度直接影響基巖對壩體的約束，從而影響壩體的應力和變形.采用非線性有限單元法，以設計中的某高拱壩為例，分析建基面強度對壩體應力和變形的影響.結果表明建基面強度對壩體應力的影響僅限于建基面附近的局部范圍，對最大主拉應力的影響要大于對最大主壓應力的影響，建基面強度的降低不會無限地增大壩體的應力數(shù)值；建基面強度對壩頂位移的影響較小，但對壩底位移(尤其是順河向相對位移)的影響較大，當建基面強度較低時，壩底順河向相對位移隨建基面強度的降低而增大 - Research shows that four factors have great influence on the formation of complex rock mass . first , rock mass subjected six times of tectonic movement during long period of geo - history , each tectonic movement produced fractures and associated joints corresponding to the orientation of maximum principal stress and deteriorated the properties of fractures formed at former period ( s ) . second , down - cutting of langcangjiang river produced unloading fractures
采用了四種巖體質量分級評價方案對研究區(qū)巖體質量進行了研究，這四種方案包括：工程巖體分級標準( gb50218 - 94 ) 、水利水電圍巖工程地質分類( gb50267 ? 99 ) 、巖體rmr分類( bieniawski , 1973 ) 、巖體質量指數(shù)z分級(小灣, 1995 ) 。 - The surface of natural fracture ( crack ) is parallel to the orientation of maximum principal stress . the principle orientation of anisotropic permeability reservoirs agrees with the orientation of the maximum principle stress . many engineering problems ( e . g . bore - hole stability , casing deformation failure during drilling , reasonable arrangement of wells , the optimum design of hydraulic fracture and so on ) are influenced by the in - situ stress orientation
天然裂縫面和裂隙面與最大主應力方向平行；在各向異性低滲透率油田中主滲透率方向與最大水平主應力方向趨向一致：在鉆井過程中井壁穩(wěn)定性，套管變形和損壞，油田開發(fā)井網(wǎng)合理布置、水力壓裂優(yōu)化設計等都與地應力方向有關。 - Using the angle between orientation of maximum principal compressive stress and strike of source - faults , the vertical seal and open features of source - faults in the end of yimin stage sedimentary period ( the main oil gas accumulation period ) are studied , showing that the source faults in the central area are poorly sealed and well opened in vertical direction and ant the main migration pathway of oil gas generating and expelling from the source rock of nantun formation
利用最大主應力方向與源斷裂走向之間夾角大小，對貝爾凹陷布達特群源斷裂在主要成藏期伊敏組沉積末期的垂向封閉與開啟性進行了研究，得到了貝爾凹陷布達特群源斷裂在凹陷中部垂向封閉性差，開啟程度高，是南屯組源巖生成排出油氣向布達特群運移的主要輸導通道這一認識。 - 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(shù)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(wěn)定性有利；根據(jù)現(xiàn)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 。 - Presents the investigation of the heat conduction behavior , internal thermal stress field of specimen under thermal shock and microscopic damage and failure of the tungsten based composites by combination of macroscopic and microscopic analyses and integration of material science and mechanics ; describes a microscopic mechanical model based on the microstructure of components with macroscopic stress applied to the microscopic model as that of maximum principal stress at the center , and the fringe of the specimen , and the microscopic stress fields obtained through calculation by the finite element method , and concludes from test results that the maximum principal stress is first generated inside the test coupon , , and a failure will be first initiated in the inclusion if the material fails at this time ; the maximum principal stress moves to the edge of the test coupon after the test coupon is heated for a period of time , and the failure will first be initiated in the base if the material fails at this time
從材料設計的思想出發(fā)，采用宏觀與微觀、材料科學與力學相結合的方法，對鎢基復合材料的熱傳導行為、材料在熱沖擊載荷下的內部熱應力場及材料細觀結構的破壞行為進行了詳細的理論研究.根據(jù)鎢基復合材料的細觀組織結構建立了材料細觀模型.在宏觀分析的基礎上，分析了材料微結構內部的破壞行為.分別取試件心部與邊緣主應力值最大點的應力狀態(tài)，施加在所建立的模型上，用有限元方法計算了模型內部的彈性應力場.結果表明：試件主應力最大值首先產(chǎn)生在試件內部，此時，如果材料發(fā)生破壞將先從夾雜中開始；加熱一段時間后試件中的最大主應力值轉移到試件邊緣，此時材料發(fā)生破壞將先從基體中開始 - Based on our own simulation results and results of some numerical simulation of single fold structure by other investigators in recent years , the factors that affect single fold shapes and the variation of maximum principal stress and horizontal strain during the deformation of single fold are discussed in this paper
本文結合近年來單層褶皺構造數(shù)值模擬研究進展，以及筆者近幾年來對單層褶皺所進行的數(shù)值模擬實驗研究，主要論述了單層褶皺變形的影響因素，單層褶皺變形過程中的最大主應力與水平應變的變化及其影響因素等。 - The result indicates that under the condition of temperature sudden drop , the temperature of face slab ' s surface and centre will fall consecutively along with the temperature sudden drop , and the face slab ' s surface temperature drop - cut range will reach maximum ; under this condition , the tensile stress appears in the face slab ' s surface and centre , the maximum principal stress in the face slab ' s surface is larger titan that in the face slab ' s center ; the maximum principal stress in the face slab ' s surface and centre both occurs in the position that the elevation equals approximately to half of the dam ' s height
結果表明，在氣溫驟降條件下，面板表面及中心的溫度將隨氣溫驟降的發(fā)生而持續(xù)降低，其中面板表面溫度降幅最大；此時面板表面和中心均出現(xiàn)拉應力，面板表面的最大主應力大于面板中心的最大主應力；面板表面和中心的最大主應力均發(fā)生在高程約為壩高一半的位置。