碾壓式土壩 的英文怎麼說
中文拼音 [niǎnyāshìtǔbà]
碾壓式土壩
英文
rolled-earth dam-
On the basis of investigations into the progressive yield process and the possible failure modes of rcc gravity dams, the quasi - elasticity design limit state of the ctrtical stability criterion is proposed and the real working state of the dams designed according to the ctriterion is discussed. a check formula using the material strength reducing factor as the safety index and a simplified formula similar to against sliding stability fromula are derived. finally, the corresponding design safety factors are given by using fem calculations with various influence parameters to be taken into account
本文在研究碾壓混凝土重力壩漸進破壞過程和可能失穩方式的基礎上，提出了以準彈性臨界作為穩定臨界準則的設計極限狀態，分析了按該準則設計的大壩的實際工作狀態，導出了以準彈性強度儲備系數為設計安全指標的審查公式以及形式與抗剪斷公式相同的簡化公式，探討了定量計算考慮各種因素影響的相應設計安全系數的合理取值，並與現行規范方法進行了比較Practice in seepage prevention structures of roller - compacted concrete dams
碾壓混凝土壩防滲結構型式的工程實踐Specifications for rolled earth - rockfill dam construction
碾壓式土石壩施工規范Based on several actual cases, the temperature control measures for roller compacted concrete ( rcc ) gravity dam and arch dam such as structural jointing for construction ; lowering of concrete placing temperature ; water pipe cooling ; surface insulation ; inclined - layer placing etc., the measures to improve the material properties i. e. the application of micro - expanding concrete ; enhancement of material crack - resistance property and the requirement for the simulative analysis on both the temperature field and stress field as well as some problems concerned are summarized herein on the basis of the analysis on the material properties ; construction characteristics and the changing characteristics of the thermal stress of roller compacted concrete
摘要從碾壓混凝土的材料特性、施工特點、溫度場溫度應力的變化特點入手，結合幾個工程總結了碾壓混凝土重力壩、拱壩的分縫方式，降低澆築溫度、水管冷卻、表面保溫、施斜層碾壓等溫控措施，採用微膨脹混凝土、提高材料抗裂性能等改善材料性能措施及碾壓混凝土溫度場、應力場模擬分析的要求和應注意的問題。Extruded concrete curb technology was introduced in 20th congress icold held in beijing in year 2000, this method draw more attention for its improving the compaction of transition material, excellent performance of slope protection, and convenient construction. this extruded concrete curb technology was developed in ita dam construction in brazil, the ita method consists of building and extruded concrete curb by using an extruding machine before the construction of a layer of the transition material, then spread and level the transition material in layers inside the curb, and compact the layer by vib ' ratory roller horizontally
巴西工程界在埃塔（ ita ）面板堆石壩建設中，借鑒道路園林工程中道沿機的擠壓滑模原理，創造性使用邊墻施工法，在每填築一層墊層料之前，用擠壓式邊墻機製作出一個半透水混凝土小墻，然後在其內側按設計鋪填壩料，用振動碾平面碾壓，合格后重復以上工序。In harsh climate region, the air temperature changes greatly between winter and summer. rcc dam are usually placed without bulk and longitudinal joints, and left free in winter. thus, it ' s unique thermal stress time - space distribution rule increases the difficulty of temperature control and crack control of rcc dam
由於嚴寒地區冬季氣候寒冷、年內氣溫變化幅度大；碾壓混凝土壩採取通倉澆築、不分縱縫以及越冬長間歇式的施工方法，使其具有獨特的溫度應力時空分佈規律，更增加了碾壓混凝土壩溫控與防裂難度。The pilot study of causes of cracks in puding rcc arch dam
高碾壓混凝土拱壩分縫形式及破壞機理研究It has much more advantages in the wet seasons. the main dam is the rolled asphalt rock - fill with the concrete core in nierji project
尼爾基水利樞紐工程主壩防滲型式採用碾壓式瀝青混凝土心墻壩。At mean time, it is very important to study and adopt new dam construction techniques in the world, such as to focus on the wide application of the rock - fill concrete deck and rolled asphalt concrete core dams
同時，學習和引進國外壩工新技術，如重點推廣應用的混凝土面板堆石壩和碾壓式瀝青混凝土心墻壩等新壩型。The rolled asphalt rock - fill dam with concrete core is one of new impervious structures in the rock - fill dams. it has very high imperviousness with ability to fit the deformation and it is easy to organize the construction
碾壓式瀝青混凝土心墻壩是土石壩的一種新型防滲結構，具有防滲性，能好、適應變形能力強、易於施工等特點。Design code for rolled earth - rock fill dams
碾壓式土石壩設計規范Design guide for rolled earth - rock fill dams in small size water resources and hydroelectric engineering
小型水利水電工程.碾壓式土石壩設計導則Analysis of effect of precrack in roller compacted concrete gravity dam
整體式碾壓混凝土重力壩預裂縫的效應與分析The asphalt concrete has very good flexibility to fit different kinds of settlements. if there were cracks, the asphalt concrete would be able to self - heal up with the act of the dam gravity. besides that, the impervious asphalt concrete is much easier to construct than the impervious earth material
碾壓式瀝青混凝土的滲透系數一般小於1 10 ~ （ - 7 ） 10 ~ （ - 8 ） cm s ；瀝青混凝土具有較好的柔性，能較好地適應各種不均勻沉陷，如果一旦發生裂縫，在壩體應力作用下，瀝青混凝土有自愈閉合能力；瀝青混凝土防滲體比土質防滲體易於施工，在多雨季節更顯出其優越性。分享友人