針壩 的英文怎麼說
中文拼音 [zhēnbà]
針壩
英文
needle bush dam-
This thesis focused on the warping soil consolidation mechanism under osmotic pressure as to blanket cracks disposal in earth dam
針對土壩粘土鋪蓋裂縫的淤填處理問題，對淤填粘土在滲壓作用下的固結機理進行了研究。To design the water cushion of baishan arc dam, the design experiment of ertan hydraulic power station, xiao wan hydraulic power station were refereed. through large amount of scientific experiments and theoretical calculation, and the design coefficients of water cushion in domestic and abroad were summarized, then the design layout of the baishan cushion was worked out at last
本文針對白山拱壩水墊塘方案設計，參考國內二灘、小灣等工程設計經驗，通過大量的科學試驗和理論計算，總結國內外的水墊塘設計參數，最後確定了白山水墊塘的設計方案。Finally, respect to the beam effect induced by special high ratio of modulus of elasticity of baise gravity dam, the sensitivity analysis are carried out to study the relation among displacement, stress state of dam and rock bed parameters
最後，針對百色重力壩特殊的高彈模比地質條件所致懸臂效應，對壩體及壩基的變形和應力狀態與壩基力學參數之間的關系進行了參數敏感性分析。Due to different exploitation intensity and ecological restoration measures used in hongchiba region, wuxi county, the vegetation have been formed a series of succession stages, i. e. herbaceous stage scrub - shrub stage - shrub - tree stage - pure larix daempferi conifer forest stage - pinus armandii needle broad - leaved mixed forest stage - natural deciduous broad - leaved forest
巫溪縣紅池壩地區由於歷史上開發強度和生態恢復措施的不同，使當地植被形成了從草本群落灌木灌叢林灌過渡帶日本落葉松（ larixdaempferi ）針葉純林華山松（ pinusarmandii ）針闊葉混交林天然闊葉落葉林的一系列生態恢復演替階段。Aiming at the deficiencies in the ctod criterion applied to analysis of critical crack propagation, a new fracture criterion is established
針對ctod準則在混凝土壩裂縫失穩擴展分析中的不足，提出了一種裂縫失穩擴展新判據。Because of limit that invisibility and discommodious in anciently program, based on the method of limited rigid body equilibrium, using visual program language vb and connect autocad, realize plane and solid programme of abutment analysis of arch dam, provide alternation interface for designer. presently, our country constructing and will construct high 300m arch dam, it is important to judge security based on nonlinear fem analysis. basic theory of nonlinear fem analysis and its realization in ansys were studied
針對傳統程序的存在問題，非直觀、不易操作特點，以剛體極限平衡法為基本分析方法， visualbasic作為操作平臺，結合autocad圖形軟體，完成了剛體極限平衡法二維、三維壩肩穩定分析程序設計，使之具有直觀性，可視性、易操作性，為設計人員提供了具有友好界面的工程使用軟體目前我國西部在建和將建一批300m級的高拱壩，運用有限元方法計分析拱壩穩定性、評判大壩安全度十分有必要。The dispersibility as well as seepage distortion and salt transference under long - term seepage condition of soil samples obtained from the clay core wall in xijiao and sanping reservoirs were studied by physical and chemical properties of soil and composition of clay mineral and the tests for identification of dispersive clay soils which included double - hydrometer test, pinhole test, crumb test, tests to defermine salt content of pore water and percentage of exchangeable sodium
摘要應用碎塊、針孔、雙比重計、孔隙水可溶鹽和交換性鈉百分比等五種試驗方法，結合物理化學性質和礦物成分分析，對西郊、三坪兩水庫大壩心墻土樣進行了多種方案的分散性試驗及長期滲流條件下的滲透變形試驗和鹽分運移試驗。In this paper, the study of construction technology of concrete facing rock - fill dam in frigid zone has been done in accordance with construction and practice of lianhua hydropower station ( concrete face rock - fill dam ) in mudanjiang, heilongjiang province
本文針對嚴寒地區砼面板堆石壩施工技術研究方面的不足，結合我國黑龍江省牡丹江上的蓮花水電站，面板堆石壩的施工實踐，通過施工的原型實驗，對砼面板堆石壩在嚴寒條件下的施工技術進行了研究和總結。Various computational examples are presented in the paper for different cases, such as simultaneous routing of main and branch streams, routing of dam - break flood, computation of simultaneous outflow from dam, flood calculation in watercourse with multiple branch steams, and computation of the hydraulic grade line in the reservoir
論文針對不同條件分析了干支流同時演進計算、潰壩洪水計算、干支流大壩泄洪對下游的影響、多支流河道演算和庫區水面線的計算。3m. as for lack of construction experience in using spreading gradation soil as the permeation proof body in our country at present, the author has studied the soil material carefully
針對目前國內尚沒有寬級配礫質土作為高土石壩防滲體的實際施工經驗，對土料進行了較為詳細的試驗研究工作。Temperature control and crack prevention of concrete - the simulation analysis characteristics of dams construction with mgo concrete, the theory apply " equivalent time " to the model for computing autogenous volumetric change of concrete which be relate to temperature history. it makes computing autogenous volumetric change of concrete be realized at case of arbitrary temperature history, so the problem puzzled engineer over a long period of time may be dispelled
針對溫控防裂的一項新技術?外摻mgo混凝土築壩技術的模擬計算特點，提出了應用「有效時間」理論，來考慮自生體積變形與溫度歷史有關的膨脹模型，使長期以來困繞工程界有關外摻mgo在任意溫度歷史下產生的膨脹變形的應力補償計算成為可能。In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。So there is great significance in reality to minimize the expenses by studying the relationship among the scheme, machine matching and the cost optimization in construction
因此，針對如何加強碾壓混凝土壩施工方案、機械配套和費用優化問題等展開研究，使其施工費用最低，必將具有重大的現實意義。Combined with a concrete face rock - fill dam in process, the simulation analysis on the face slab ' s temperature field and temperature stress is processed in connection with the condition of temperature sudden drop caused by daytime temperature differences and cold wave and so on during the construction period
摘要結合某在建的混凝土面板堆石壩，針對施工期日溫差及發生寒潮等氣溫驟降情況，進行了氣溫驟降條件下面板溫度場及溫度應力的全過程模擬分析。Based on the actual condition of gezhouba hydroeletric power plant, this paper points out the basic way for unit increasing capacity rebuilding of this plant after serious analysis and site review of lots of information of unit increasing capacity of hydroelectric unit at home and abroad. for this rerebuilding plan, we have made a lot of experiment and analyzed the data, the result show that the unit increasing capacity is necessary and feasible in this plant, additional, this paper describes project management, organization struture, management method, and evaluates this project value
本文對國內外眾多水電機組增容改造資料進行了認真研究和實地考察；通過對水力發電機組增容改造技術的研究，結合葛洲壩電站實際情況提出了葛洲壩電站機組增容改造的基本途徑；針對葛洲壩電站機組改造方案，進行了大量的試驗，認真分析了試驗數據，用試驗結果充分證明了葛洲壩電站機組增容改造的必要性和可行性；本文還就該工程項目管理的必要性、組織結構、管理方法進行了闡述，並對該項目進行了項目評估。The aim of this dissertation is to shed some light on these subjects. first, systematic experimental study and theoretical analysis have been performed to study the damage of concrete due to loading history. in addition, an artificial neural network approach is developed to study the constitutive relations of materials, and some constitutive models of concrete under various loading history have been established
本文針對目前大壩設計和研究中混凝土材料損傷及本構特性這個薄弱環節，在深入分析國內外有關成果的基礎上，從理論和試驗兩個方面對混凝土材料經歷過荷載歷史后的損傷特性進行了深入的研究；同時，將人工神經網路技術應用到混凝土本構領域，建立了一系列在各種加載形式下的混凝土材料模型。Aiming at the recharge capacity of rubber dam to the groundwater storage, the excited water supply of the dam caused by the exploitation of industry is discussed by mathematical simulation
並針對橡膠壩的補給能力，通過數值模擬探討了壩內蓄水因工業開采而激發的補給量。According to the numerical results and monitoring data, the possible causes of some cracks in the dam are further discussed ; and advices on the design and construction of rcc arch dam are given
結合實測資料和計算結果，重點分析討論了普定拱壩貫穿裂縫產生的可能原因，並針對碾壓混凝土拱壩設計及施工提出了相關建議。Secondly, to analyze seismic response of the concrete gravity dam, subspace iterative method was applied to compute free vibration period of the dam, time integration method was built up for the seismic time history analysis and formulation of coupled vibration of reservoir water and dam were also deduced
其次，針對混凝土重力壩的地震響應分析問題，採用子空間迭代法計算了大壩的自振周期，建立了地震時程分析的逐步積分方法，並且推導了庫水和壩體耦合振動的理論公式。On the basis of brief introduction of danjiangkou dam extension project which is in the middle route water resources project of the south - to - north water diversion, the present construction methods and existing problems about key technology of increased artificial concrete keyway of jointing surface between new concrete and existing concrete are analyzed, and a new construction method by saw - cutting and static crack for construction of concrete keyway is researched
摘要在簡要介紹南水北調中線水源工程丹江口大壩加高工程概況的基礎上，針對大壩加高中新老混凝土結合面新增人工鍵槽施工的關鍵技術，分析了現有施工方法及存在問題，研究並提出了新的鋸割靜裂法施工法。分享友人