cooling arch 中文意思是什麼
cooling arch
解釋
冷卻拱（玻）-
Combined with practical data of shannxi lin hekou hydropower plant, the temperature filed of m and n schemes during construction and operation are simulated and analyzed. the isoline map of stable temperature field of the arch crest girder section and the vertical section in the center of arch dam, the isoline map of unstable temperature field of the arch crest girder section and the vertical section in the center of arch darn during construction and operation and the maximal and minimal temperature value during construction and operation are provided. the distribution law of temperature in the dam and the form reason of high - temperature zone are analyzed and the effect and feasibility of cooling and the zone of cooling are discussed
結合陜西藺河口水電站工程實際資料，對m方案和n方案溫度場進行了施工期和運行期全過程模擬計算分析，給出了拱冠梁剖面和壩體中心縱剖面準穩定溫度場等值線圖以及施工期、運行期拱冠梁剖面和壩體中心縱剖面非穩定溫度場等值線圖，提供了施工期逐月和運行期每年最高、最低溫度等成果，分析了壩體溫度分佈規律以及高溫區形成的原因，並探討了預埋冷卻水管的效果和可行性以及預埋冷卻水管的區域。 -
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。 -
By using the finite element numerical simulating method, and studies based on the practical project xiluodu arch dam, this paper studies systematically the type of joints, placing temperature, protection methods on the surface of concrete dams, the first stage artificial cooling method including different cooling water temperatures, cooling lasting days and cooling pipes arrangement
本文利用數值模擬計算方法，以溪洛渡實際工程為依託，對大體積混凝土施工中常採用的溫控措施對混凝土溫度變化的影響規律進行了全面系統的研究，包括分縫分塊方式、澆築溫度、混凝土間歇時間、一期冷卻方式（包括不同進水溫度、不同水管布置、不同通水時間）等。 -
According to the concrete ages of different grout compartments, the concrete temperature rising process and the arching temperatures etc., aiming at the optimization of technology and economy, the paper studies systematically the feasibility of applying different temperature control measures in different seasons and at different elevations ; and obtains characteristic parameters of arch dam temperature fields and stress fields so as to provide a basis for construction units to implement second stage cooling or third stage cooling according to particular demand at that time
為了達到技術上與經濟上雙優的目的，根據不同灌漿區的混凝土齡欺、混凝土溫升過程、封拱溫度等，系統研究了在不同季節里、在不同高程上採取不同溫控措施的可行性，得到了拱壩溫度場與應力場的特徵參數，為施工單位根據當時的特定需要，進行二期冷卻或三期冷卻提供了依據。 -
Pipe cooling is one of the most temperature control measures of concrete of arch dams
水管冷卻是拱壩混凝土的主要溫控措施之一。 -
Computational method of cooling pipe in massive concrete of arch dam
拱壩大體積混凝土冷卻水管計算方法 -
Analysis of the second stage artificial cooling way of xiluodu arch dam with numerical simulation method
溪洛渡拱壩二期冷卻方式模擬分析研究 -
In this paper, a 3d finite element analysis software ( fzfx3d ) was compiled to simulate the construction process of mass concrete structures constructed with sequence method. based on the practical project xiluodu arch dam, the dam ' s construction process was simulated by a small time step size, 0. 5 or 1 days. the environmental temperature change, hydration heat rise, artificial cooling, creep, volume deformatio
運用laplace變換方法將溫度的求解表示為只與空間坐標及澆築時間有關的函數，從而避免了用隱式差分法、有限元法求解時需求解聯立方程的因而對測點選擇的依賴，也避免了顯式差分法求解穩定性受時間步長，測點間距大小限制的缺點，因而具有測點布置靈活的特點。
分享友人