坝体

坝体在地震波作用下的ANSYS模拟分析

Simulation analysis of dam body under ground seismic wave function with ANSYS software

堰顶横缝表面封堵和混凝土裂缝的化学灌浆处理，增强了混凝土的防渗性能，坝体渗漏量降为1.88m3／h，满足了设计要求。

The impermeability of the concrete has been greatly improved and leakage of the dam body is decreased up to 1 . 88 m3 / h , thus meeting the design requirement .

利用有限元工具ansys程序，对坝体简化断面按线弹性材料进行初步计算。

Do a primary calculation for the dam cross-section by using the ansys tool .

土石坝坝体CAD系统是水利部水利水电规划设计总院正式下达给我院的水利行业九五CAD重点开发项目。

The Earth Dam CAD System is a key developing subject assigned by the Ministry ' of Water Resources .

SH波入射时柔性基础上等腰三角形坝体结构的出平面反应

Antiplane response of isosceles triangular dike to incident SH waves

分析结果表明，二维总应力分析方法定性上能较为合理地给出坝体地震反应情况，Seed简化法直接用于坝体液化分析存在着一些问题，需要进一步改进。

Comparison shows that program QUAD-4 provides a better analysis qualitatively and the Seed 's method needs to improve for analyzing seismic responses of dam .

在材料措施方面，深入研究高碾压混凝土坝基础约束区采用外掺Mgo措施，利用其微膨胀性能补偿坝体降温过程中产生的温度应力，以防止大坝纵向裂缝的发生。

In the dam foundation restraint area , MgO can be mixed into concrete to prevent dam longitudinal crack .

采用GAP单元分析拱坝在静水压力作用下横缝中存在的各种间隙对坝体结构受力的影响，分析结果表明：横缝存在间隙对拱坝结构受力有不良影响；

An analysis by using the GAP element is performed to study the effects of different transverse joint 's gaps on the structural stresses of arch dam under static water pressure .

用2S控制图管理坝体的位移能及时发现坝体的异常变化。

The displacement of tailing dam be observed and investigated by " 2s " managing control sketch , the unusal changer can be discovered .

采用ANSYS结构分析软件，对某混凝土重力坝进行有限元应力分析，研究了地基弹性模量及地基不均匀性对坝体应力的影响，由此得出一些有益的结论，可供设计参考。

This paper makes FEM studies on stress of gravity dam with ANSYS software for structure analysis . It analyzed the influence of base 's elastic modulus and heterogeneity on dam stress and educes some useful conclusion for designers .

在主堆石区（3BⅠ）设立强透水区，以确保坝体的抗渗稳定性；

B ) a strong pervious zone was arranged in the main rockfill area ( 3BI ) to ensure the stability of anti seepage of dam body ;

实践证明，施工采用的RCC配合比基本合理，RCC施工工艺可行，现场试验为RCC坝体施工提供了可靠的依据。

The practice showed that the RCC mix proportion adopted in the construction is rational and its construction technique is feasible . The field tests provided the construction of RCC dam body with reliable basis .

为了便于RCC施工，在结构设计上对纵向围堰及二期工程坝体作了相应的调整；在施工方案和施工工艺上也进行了优化，这些都为RCC施工创造了条件。

In order to facilitate the RCC construction , the structural design of the longitudinal cofferdam and the second stage dam section is correspondingly revised , and the relevant construction schemes and constructional techniques are optimized .

采用非线性优化方法中的序列二次规划法（SQP）优化碾压混凝土重力坝坝体体型。

Sequential quadratic programming ( SQP ) method , one of nonlinear optimization methods , is adopted to optimize section configuration of roller_compacted concrete ( RCC ) gravity dams .

在三峡大坝施工现场，用坝体混凝土制做了6m×2m×10m的大体积混凝土模型，内置各种混凝土缺陷，对其开展面波探测可行性研究。

The concrete model made in a dimension 6 m by 2 m by 10 m with different flaws was used for researching the feasibility and practicality of surface wave in concrete flaws detection .

坝体采用C15混凝土砌石为坝体材料，以混凝土预制块为施工模板，工程投资省，运行安全可靠。

The dam body materials used C15 concrete stone_masonry , the construction mode adopted concrete precast products , saving project invest and running in safety .

AM-9和超细水泥浆液注浆处理坝体渗漏

Injection of Dam with AM-9 Grout and Microcement

根据研究，考虑到坝体结构布置、构造要求、RCC施工方法等因素，各坝段采用RCC的部位将有所不同，总的采用原则是在坝体多钢筋的大孔。

From study , because of constraint of structural layout and constitutional requirement of dam body and RCC construction method , etc , for different dam sections , the positions which are made up of RCC will be different from each other .

示例对水压荷载作用下坝体的应力和位移进行三维仿真分析，表明仅设置30m长的推力墩能消减50%的坝体下游面（水压荷载）拱向拉应力；位移减小20%；

Three-dimensional analyses of the stresses and displacement due to the hydraulic pressure showed that the downstream tensile stresses in the arch dam were reduced by 50 % and the deformation was reduced by 20 % .

根据设计要求，冶勒水电站工程右坝体深厚覆盖层防渗墙处理深度需达220m。

Base on the design requirements , the cut-off system in the right bank area of Yele hydropower station has to reach 220 m deep .

计算结果表明，横缝下游宽度达到2mm以上，坝体应力恶化，将会危害到拱坝的安全。

The results show that when transverse joints aperture is beyond 2 mm , the development of transverse joints will change the structural action to a considerable extent , thus endangering the dam safety .

为利用高密度电阻率法检测混凝土缺陷，在三峡大坝施工现场，用坝体混凝土制成6m×2m×10m的大体积混凝土模型，模型内置各种混凝土质量缺陷。

For adopting high density resistivity method to detect defects of concrete , a physical model dimensioning 6 m × 2 m × 10 m and containing diverse defects was fabricated in the construction site of the Three Gorges Project .

分析比较极限平衡法、数值分析方法和可靠性分析法三种边坡稳定计算方法，最终确定采用FLAC法计算坝体稳定性。

The paper analyzes and compares three kind calculation methods of slope stability , which are limit equilibrium method , the numerical analysis and reliability analysis method , and finally the FLAC method is determined to calculate the dam stability .

断层错动50cm对坝体包括坝壳和土质心墙本身不构成威胁，但将导致断层附近的混凝土防渗墙局部破坏。

If the dislocation is limited with 50 cm , it will not induce the failure of the dam itself , but will result in the local damage of the concrete cut-off wall nearby the fault .

应用高精度加权本质无振荡（WENO）格式构造了溃坝水流计算的数学模型，模拟了坝体瞬间全溃时洪水波的运动过程，并将计算值与理论解进行了比较。

In this paper , a mathematical model for simulating dam-break flows was set up based on the WENO ( Weighted Essentially Non-Oscillatory ) scheme , by which the process of flood wave movement caused by sudden dam-break was simulated .

高土石坝坝体填料的宏观抗剪强度研究

Study on the macro-shear strength of filled materials in earth-rock dams

坝体失稳是引发尾矿库溃坝或其他尾矿库事故的一个重要原因。

Dam instability is an important factor of accidents of tailings .

基于灰色系统的动态平差坝体变形预报

The Dam Distortion Forecast Of Dynamic Error-Balancing Based on Gray System

风化料在坝体防渗中的应用

The application prospect of weathered soil in seepage prevention of dam

下游坡比取0.75时，坝体和坝基的剪应力值符合要求；

When slope ratio is 0.75 , shearing stress is satisfied ;