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- Research Development of Safety Analysis for High Concrete Dam. 高混凝土坝安全分析方法的研究进展。
- With concrete dam ageing, the change takes place in it's deformation modulus. 随着坝龄的增长,混凝土大坝的变形模量将发生变化。
- Literally thousands of concrete dams are providing water supply shortage, irrigation, flood control, and power generation. 可以毫不夸张地说,有成千上万座混凝土水坝正在供灌溉,给水、防洪、发电之用。
- This type of clinonear was designed for measuring unidirectional deflection of concrete dams or the variation of inclination of rocks and fault dips. QX-10遥测倾斜仪是为监测混凝土大坝坝体单方向倾角变形而研制的。
- The thermo stresses in the concrete dam will produce because of changing of weather temperatures. 由于气温的交替变化,处于寒区的混凝土大坝必然产生温度应力。
- This doctoral dissertation discusses the rockery part's seepage system control of large concrete dams which has always been a problem for the construction department. 本博士论文研究实际设计部门提出的大型混凝土坝岸岩绕坝渗流系统的控制问题。
- The problem of thermal stress and a need for temperature control in the mass concrete construction also occur in the roller compacted concrete dams(RCCD). 大体积混凝土的温度应力问题与温度控制要求在碾压混凝土坝中同样存在。
- This paper instance gallery in concrete dams, discusses design idea of CAD software on blocks of steel bar of gallery and method of connect technology of the blocks is solved. 以混凝土坝内廊道结构为例,论述了廊道cad软件设计中钢筋的模块化设计思想和解决模块间拼接技术难题的方法。
- Therefore it provides a new effective way for discerning elastic parameters of concrete dam body and rocky foundation. 从而为识别混凝土坝体和岩石基础弹性常数提供了一条新的有效途径。
- The physical equation and elastic matrix for the rolled concrete dam is deduced based on the anisotropic elasticity. 由各向异性体的物理方程推导了碾压混凝土的物理方程和弹性矩阵。
- The conclusion shows the characteristics of RCD concrete dam stress field in the very cold area and it will be helpful for design and construction. 仿真计算结果揭示了北方寒冷地区碾压混凝土坝温度应力的特征,从而为混凝土入仓温度控制标准的制定和边界保温方法的选择提供依据。
- A new method for anti - seepage coating of roller compacted concrete dam by using wet - mix shotcreting polyacrylate emulsion cement mortar(PAE mortar) is presented in this paper. 针对碾压砼坝上游面的防渗,提出了湿法喷涂丙乳砂浆集中防渗的新方案。
- The concrete in concrete gravity dam,especially in RCC dam,is a stratified structure,so that its stratification feature is key to the safety of concrete dam. 在混凝土重力坝尤其是碾压混凝土坝中,混凝土为成层结构,因而层面特性对混凝土坝的安全至关重要,个别坝段水平薄弱面的存在对混凝土坝的整体安全性有重要影响。
- As the limit state equation of concrete dam is highly nonlinear and can t be expressed in an explicit form,the adaptive importance sampling method is suggested in this paper. 在大坝可靠度计算中,其功能函数具有高度非线性和无法显式表达的特性,解决此类问题的常用方法有响应面法、蒙特卡罗法、重要抽样法等。
- In recent years, there has been a big advancement in the rolling concrete dam construction, but there still exist some problems in the impervious structure. 碾压砼筑坝近年来已有了很大发展,但其防渗结构方面仍存在问题。
- Based on qualitative analysis,the observational data of compression stress metre in a concrete dam have been analyzed quantitatively in this paper by mathematical mode. 在定性分析的基础上,通过建立数学模型,对某混凝土坝压应力计观测资料进行了定量分析。
- In combination with the progress on construction technology in RCC dam and conventional concrete dam in China in recent years, a new concept RCC dam is further discussed. 结合我国近年来在碾压混凝土坝和常态混凝土坝的进展,再论新概念碾压混凝土坝。
- Now ,the construction technique of rolled concrete dam with high temperature condition is one of the most attended research subjects by the domestic and foreign RCC constructers . 高温条件下碾压混凝土坝(RCC)施工技术已成为国内外从事RCC工作者最受关注的研究课题之一。
- Abstract: Based on the results of percolation test for core samples from a certain roller compact concrete dam in China, this paper presents a summary review on the law of precolation features of roller compact concrete. 文摘:根据国内某碾压混凝土工程坝体芯样渗透特性试验成果,对碾压混凝土渗透特性规律进行了总结评述。
- In the paper, Combining with engineering examples, based on the characteristics of the corrosion to concrete dam, when implementing the above-mentioned code, the main points and method of evaluating the corrosion from water to concrete dam are proposed. 该文结合工程实例分析 ,依据水对混凝土坝腐蚀的特点 ,提出了执行该规范时对水坝混凝土受水腐蚀的评价要点和方法