丁坝

基于BP神经网络的丁坝坝头冲刷深度预测模型

The groin abutment degradation depth prediction model based on BP neural network

强潮河口丁坝坝头块体抗冲稳定分析

Erosion-Resisting Characteristics of Blocks on Groin Head in Micro-Tidal River Mouths

研究了C.丁坝水力学特性研究

A Study on Hydraulic Properties of Groyne Research

其桩周土模型采用Winkler假定，应用有限差分法将桩式丁坝框架结构的各梁柱单元离散后联立起来，从而求得整个结构的动力响应。

Adopting Winkler model for soils , the dynamic response of the whole structure was obtained by means of finite difference method .

基于RNG紊流模型，采用VOF法、空度法和璧面函数法分别处理自由面、不规则边界和壁边界，对丁坝附近的水流进行了模拟和研究。

RNG turbulent model combining with VOF method , porosity method and wall function was used to simulate and research the flow around a spur-dike .

其次，采用标准K&ε紊流模型和追踪自由水面的VOF方法对涌潮冲击排桩式丁坝进行了数值模拟；

Secondly , the standard k - ε turbulence model and VOF for surface tracking are applied to numerical simulation of the bore against the sheet-pile groin .

由此可见，把水深平均的平面二维数学模型，结合Galerkin加权余量法和NewtonRaphson迭代法来模拟淹没丁坝存在状态下的二维水流形态是合理的。

From above , the conclusion is drawn that it is feasible to use planar 2-D depth - averaged model , combined with Galerkin method of Weighted Residuals and Newton-Raphson iteration , to simulate the 2-D flow with submerged spur-dike .

强潮河口漫水丁坝上游冲刷的研究

Study of Upstream Scour Around Submerged Groins in Macro-tidal River Mouth

线性与非线性紊流模型及其在丁坝绕流中的应用

Application of linear and non-linear turbulent models in spur dike flow

丁坝绕流及局部冲刷坑二维数值模拟

Two-dimensional Numerical Simulation on Spur Dike Circumfluence and Local Scour Hole

丁坝的冲刷机理和局部冲刷计算

Basic Theories for Scour of Spurs and Computation of Local Scour

丁坝局部冲深计算的理论探讨

Theoretical discussion on calculation of local scour depth of spur dikes

丁坝冲刷及整流桩防护措施研究

Study on Protective Measures for Groins and Its Protective Means Scouring

丁坝浑水冲刷试验研究

Study of the unclear water local scour depth of spur dike

淹没丁坝平面二维水流数值模拟研究

Mathematical Simulation of Planar 2-D Flow with Submerged Spur - dike

丁坝坝头基础防护的方法探讨

The Probe in to the Protection Methods of T-embankment Head Base

透水丁坝工程设计参数的合理选择

Rational selection of the designing parameter for the permeable groin engineering

丁坝的布置方法直接影响到工程的效果，其关键是利用丁坝的坝后回流区。

The engineering effect is affected directly by layout of groins .

单排井柱桩透水丁坝的分水缓流作用效果

Water Diversion and Retarding Action Effect of Single Permeable Pile Groins

丁坝对弯道水流影响的分析

Analysis on the Effects of Spur-dikes on Flow State in Channel Bend

涌潮翻越丁坝过程数值试验初步研究

Numerical study of the process of tidal bore turning over the groin

非淹没丁坝动水压力研究

Study on dynamical head pressure formed near spur dike of non-overflow type

典型丁坝拆除水动力条件研究

Research of Hydrodynamic Condition in Demolition of Classical Spur Dikes

漫水丁坝周围水流结构及其冲刷深度计算

The Flow Structure and the Computation of Erosion Depth around Submerged Spur

丁坝错口距离的最优值、极限值研究

Study on the Optimum and the Limit of Alternate Space between Groins

分析了丁坝附近水位在纵横向上的变化规律。

Variations of water surface along longitudinal and horizontal direction are analyzed .

透水丁坝坝后回流区长度研究

On the Length of Circulation Region of Seepage Spur Dike

天然河道淹没丁坝群水流计算平面二维流带模型

Model of 2-D for Flow-Belt in Natural Rivers with Submerged Spur-dikes Group

丁坝在山区航道整治的应用及效果

Application of Spur Dike in Regulation of Mountainous Channel and Its Effect

惯性回流流态。三个丁坝流态研究

Inertia inverse flow . Study on flow patterns over spur-dikes