under water concrete 中文意思是什麼
under water concrete
解釋
水下混凝土-
Through experiment study of tank model under prestress, water pressure, temperature action, external loads, and coactions of all the loads, stress characters of various parts of concrete tank are analyzed
通過大量算例，對構件組合和變溫差異對熱應力的影響問題進行了分析。並根據分析結果提出了一種新的罐體結構型式。 -
An investigation on the fracture mechanism of concrete under different shock loading in water
不同沖擊載荷下水中砼破壞機理的初步研究 -
Then, a thunderous sound came from the rear of the house. the kitchen on the back slope had collapsed under the sudden onslaught of a torrential flow of muddy water, and had fallen on the last row of concrete houses on the slope. rocks of all sizes, washed down by the muddy water, smashed through the windows into the rooms and then rushed through the doors into the living room and out into the courtyard at lower levels
謝師兄在打坐中依稀聽到爸爸走進客廳的聲音，突然一聲山崩地裂的巨響從屋后傳來，後山腰的廚房被突如其來的土石流沖擊倒塌，壓到斜坡上最後一排的鋼筋房子，土石流沖破兩三間房間的窗戶玻璃，大小石塊挾雜在洪水中，從窗口沖進房間，又從房門竄流出來，直奔地勢較低的客廳和庭院，家頓時變成土石流的出水口。 -
Under the different freezing - thawing cycle circumstance, three factors of water binder ratio, air content and mineral admixture are analyzed by using the method of orthogonal table. the test results show that the chief influencing factor is the water binder ratio in water freezing - thawing cycle circumstance, and in salt freezing - thawing cycle circumstance is the air content. this could illustrate that entraining air into concrete can improve the frost resistance of concrete effectively in salt freezing - thawing cycle
分析了在純水和3 . 5 % nacl溶液中受凍后，水膠比、含氣量和摻合料對混凝土飽和系數及變化速率的影響規律，試驗結果表明水膠比對混凝土水凍時的飽和系數及變化速率影響顯著，而鹽凍情況下含氣量則是主要影響因素，說明引氣能顯著提高混凝土的抗鹽凍性能。 -
Under different sand ratio, the relationship between water cement ratio and 28 day compressive strength is researched and the coefficient of recycled concrete is induced
在不同砂率下，分析了再生混凝土28天齡期抗壓強度與水灰比之間的關系，並回歸分析得出了再生骨料系數。 -
Fabrication of the box beam is divided into such parts as reinforcement, formwork, concreting, prestressing, moving and storing of beam, pipe grouting under pressure, end sealing of the beam, water - proof layer on the bridge surface system, protective coating etc. the paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects, such technologies as : manufacturing and fixing of reinforcement, steel reinforcement fixing baseplate, web plate and top plate respectively and lifting the steel skeleton into form, requirements of design and manufacturing and way of utilization for dismantling - erection type formwork and hydraulic formwork, optimization of concrete ratio, concrete pouring process of two ends of beam in priority over the middle, in sequence of first baseplate followed by web plate and top plate at last, concrete pouring in inclined section and in horizontal layer, concrete vibration mainly by external vibrator in assistance with internal vibrator, methods and regulation for steam curing of concrete, dual controls over stress and strain to ensure quality of prestressing workmanship, construction method of effective beam moving by heavy - weight special moving facility, some regulations and key notes about construction of grouting under pressure, beam ends sealing, water - proof layer on the bridge surface system, protective coating
箱梁製造由鋼筋工程、模板工程、混凝土工程、預應力工程、移存梁工程、孔道壓漿工程、梁體封端工程、橋面防水層和保護層工程等施工環節組成。文中介紹的採用胎具製作和綁扎鋼筋，分底腹板和頂板分別綁扎並吊裝鋼筋骨架入模；拆裝式和液壓式兩種模板的設計、製作要求和使用方法；綜合考慮、優化混凝土配合比，混凝土灌注從兩端至中間、先底板、后腹板、再頂板的施工順序和斜向分段、腹板水平分層、附著式振搗為主、插入式搗固為輔的施工工藝，蒸汽養護的方法和規定；應力應變雙控制確保預應力施工質量的施工技術；採用重物移運器有效移梁的施工方法；壓漿、封端、橋面防水層和保護層施工的一些規定和注意事項等都是對箱梁製造行之有效的施工技術和施工方法，並可為以後類似施工作借鑒。 -
It concludes that percolation of roller compact concrete is of self - compactness by time effect under continuous action of water head and there may exist partial darcy flow regime in roller compact concrete under high water head
認為在持續水頭作用下，碾壓混凝土的滲透具有時效自密性；高水頭作用下的碾壓混凝土可能存在偏達西流現象。 -
By means of inquisition, the paper analyzes the causes of cement concrete pavement damage in earlier period, divides its damage into stages and analyzes the damage mechanism in theory, then puts forward relevant countermeasure for all stages. on base of these, by studying large quantity of experiments indoors combined testing road, the technique of pressing mortar under cement concrete plank and changing pavement plank, the material used to quickly repair pavement and system for draining off water are analyzed and researched in detail from principle to craft. at same tune, all kinds of repairing material and technique adaptable to cement concrete pavement are put forward
本文通過對水泥混凝土路面破損的調查，分析了造成水泥混凝土路面早期破損的原因；劃分了水泥混凝土破壞階段，對不同階段的破壞機理進行了理論分析，並相應的提出了各階段的維修養護對策；在此基礎上，通過大量的室內試驗並結合試驗路的研究，重點對水泥混凝土板底壓漿技術、水泥混凝土路面的換板技術、水泥混凝土路面的快速修補材料以及對水泥混凝土路面的排水系統從技術、原理到材料工藝進行了詳細研究和理論分析，提出了適應各種水泥混凝土路面破壞的修補材料和修補技術；最後本文還對修築水泥混凝土路面提出了具有指導性的建議。 -
Applying and analyzing on characteristics of placing concrete under water with tremies
直升導管澆築水下混凝土方法的應用及特點分析 -
Application of acoustic measuring of concrete quality under water in downstream of yunfeng dam
聲波測試在雲峰大壩水下混凝土質量檢測中的應用 -
Permeability coefficient tested by tension method is about 10 times of that by pressure method, which indicates that water can permeate into concrete easily under tension
通過研究張力法下水在混凝土中的滲透發現:水在張力法下更容易滲透，張力法下的滲透系數比水壓法下大一個數量級。 -
Permeability of concrete and its correlation with chloride ion diffusion coefficient under different test conditions including water pressure method and tension method are studied
本課題主要研究混凝土在水壓法及張力法試驗條件下水在混凝土中的滲透行為以及同氯離子擴散系數相關性。 -
Testing hardened concrete - part 8 : depth of penetration of water under pressure ; german version en 12390 - 8 : 2000
硬化混凝土試驗.第8部分:加壓水滲透深度 -
Wuxi nakano machinery co., ltd. and japan - field technology, the development of a new type of closed turntable polishing concrete slabs. polished tiles from the radically changed the cooling water production accelerated, workers unable to operate close to the phenomenon ; supported by tanks under the workpiece table, it will not only compensate for the loss millstone, but stable grinding force. different uniform surface quality products ; with the grinding process workpiece turntable and rotating products
無錫中野機械有限公司引進日本技術，全新開發的轉臺型封閉式混凝土地磚磨光機，從根本上改變了磨光地磚生產中冷卻水飛濺，操作工人無法靠近的現象工件轉臺由下油缸支承，不僅能及時補償磨石的損耗，而且磨削力穩定不變，不同產品的表面質量均勻一致磨削過程中產品隨著工件轉臺而轉動，避免了其它型式磨光地磚生產中產品不動而帶來的同一產品表面質量不均的現象。 -
This paper deals with high fluid concrete in which high strength ceramsite made from shale was used as coarse aggregate. effects of cement content, water - cement ratio, sand percentage, mineral admixture, grading and pretreatment of lightweight aggregate on compressive strength and workability of high fluid structural lightweight aggregate concrete have been studied. the rules of water absorption of high strength lightweight aggregate under different pressure and effects on uniformity of high fluid structural lightweight aggregate concrete have been studied too
本文採用高強頁巖陶粒，摻加高效減水劑配製大流動性結構輕集料混凝土，討論了水泥用量、水灰比、砂率、礦物摻料及輕集料的級配和預濕方式對大流動性結構輕集料混凝土強度和工作性的影響；系統研究了高強陶粒在常壓和壓力下的吸水規律；研究了影響大流動性結構輕集料混凝土勻質性的因素，提出了解決大流動性結構輕集料混凝土分層離析的具體措施。 -
The choice dam type is especial importance, during the designed research of the rock - fill dam, particular under the rock - fill dam with very deeply cover layer, the stress and strain of the middle wall and cutting interpenetration wall of the dam foundation is mostly sensitive, whether the. design of dam is scientific and reasonable, it is very important for cutting interpenetration and stability of the dam, the article offer the reference for the design of cutting interpenetration in the foundation with deep cover with earth the water conservancy in xiaban zone, based on the study and analysis the design of cutting seep in the foundation with deep cover with earth, cutting interpenetration concrete wall and the joining model of cutting interpenetration material in body of dam and the applying effect in the practical worko based on the foundation which absorbed and summarize the achievement of design and research in the inter and outer country, for the project of the clay vertical middle wall and vertical cutting interpenetration, the asphalt concrete vertical middle wall and vertical cutting interpenetration the clay inclined middle wall and the lever carpet layer cutting interpenetration, respectively in terms of the different stage of complete period sluice period and working condition, adopting nonlinear calculate and analysis with the finite element method ; carrying the analysis and study with the 3d finite element method as to the different joining model of the left bank high slope cutting interpenetration body and the foundation concert cutting interpenetration wall ; carrying the analysis and study with the 3d finite element method as to the effect of the wall stress and strain because of the different elasticity modulus of the concert cutting interpenetration wall through the analysis and study with the different project. have comparatively all - around comprehended the various model dam, particular the distribute rule of stress and strain of the cutting interpenetration system, provide for the important evidence of the plastic area size the join model of the foundation cutting interpenetrate wall and dam body cutting interpenetrate system the choice of the dam model and the design of the structure of the dam body, the result of research and advice have very importance value in design and building for the similarity project
工程設計中，壩型的選取顯得尤為重要，特別對于壩基有深厚覆蓋層的堆石壩，心墻和壩基防滲墻的應力和變形是壩體、壩基最敏感的部位，設計方案是否安全、科學和合理，對大壩防滲和穩定起到至觀重要的作用。本文研究分析了國內外深厚覆蓋層基礎防滲設計、壩基混凝土防滲墻與壩體防滲體銜接形式及工程實際應用效果，為下坂地水利樞紐工程深厚覆蓋層基礎防滲設計的方案選擇提供了參考；在吸收和歸納了國內外堆石壩的設計研究成果的基礎上，對粘土心墻和壩基垂直防滲方案、瀝青混凝土心墻和壩基垂直防滲方案以及粘土斜心墻和壩基水平鋪蓋防滲方案，分別按竣工期和蓄水運行期的不同工作情況進行了有限元非線性計算分析；對左岸高陡邊坡的大壩防滲體與基礎混凝土防滲墻的不同結合型式進行了三維有限元靜力計算分析和研究；對混凝土防滲墻不同彈性模量對墻體應力和變位的影響進行了三維有限元靜力計算分析和研究。通過對不同方案的計算分析和研究，比較全面的了解了各方案壩體，尤其是防滲體的應力和變形分佈規律，為壩型選擇、壩體結構設計、基礎防滲墻與壩體防滲體的結合型式以及塑性區大小的確定提供了重要依據。 -
Testing hardened concrete - depth of penetration of water under pressure
硬化混凝土試驗.加壓時水的滲透深度 -
Testing hardened concrete - part 8 : depth of penetration of water under pressure
硬化混凝土試驗.第8部分:加壓時水的滲透深度 -
Standard test methods for water vapor retarders used in contact with earth under concrete slabs, on walls, or as ground cover
混凝土板墻或土壤覆層的與地面接觸的水氣隔層的標準試驗方法 -
During the construction of concrete cut - off wall of the auxiliary dam in huangbizhuang reservoir, in the section with complex geographical condition, especially the closure section of concrete cut - off wall ( about 120m ), the deterioration of the underground water ' s flow state and the existence of the overseep channel in the stratum result in the several collapses in the dam crest. through the analysis of ever } 1 collapse ' s reason, the proposal of handling measure and its effect, the paper expounds and proves that the cut - off wall can be safely constructed and devoted into normal usage after dealing with collapse. the psper improves the construction technique and method of concrete cut - off wall especially under complex geological condition and in the overseep stratum
本文通過對歷次塌坑的原因分析及歷次塌坑處理措施的提出和對歷次塌坑處理效果的分析，論證了塌坑處理後防滲墻能安全施工和投入正常運用；完善了在復雜地質條件及強滲漏地層混凝土防滲墻的施工工藝和施工方法；提出了對病險水庫加固及在地質條件復雜地層中修建混凝土防滲墻的施工要點；同時提出了在強滲漏地層修建防滲墻的關鍵是在防滲墻施工前通過預注漿封閉強滲漏通道的重要論點；對塌坑一些處理措施中的不足之處亦進行了分析研究，供國內類似工程借鑒。
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