2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)最新文献_第2页

Static and dynamic analysis of arch dam using 3D scaled boundary finite element method 采用三维比例边界有限元法对拱坝进行静动力分析

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656270

Xinxing Jiang, H. Zhong, Deyu Li, Lulu Chai, L. Xu, Hongke Pan

{"title":"Static and dynamic analysis of arch dam using 3D scaled boundary finite element method","authors":"Xinxing Jiang, H. Zhong, Deyu Li, Lulu Chai, L. Xu, Hongke Pan","doi":"10.1109/ICHCESWIDR54323.2021.9656270","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656270","url":null,"abstract":"The static and dynamic analysis of the arch dam is performed using the 3D scaled boundary finite element method (SBFEM). Only the boundaries are discretized and the solution in the radial direction is described analytically, which reduces the dimensions by one and leads to results with high precision. The previous substructure method used in arch dams depends on the partition form of substructures due to the irregular geometries and sometimes may lead to difficulty in choosing the scaling center. To solve these problems, the hexahedral elements modelled by the SBFEM are developed. The element mass matrix and stiffness matrix are given, and the elastodynamic equations using the SBFEM are established. The Newmark integration method is applied to obtain the dynamic response of the arch dam. Numerical examples are carried out to verify the accuracy and stability of the hexahedral elements modelled by 3D SBFEM. The first example is a cuboid subjected to static loads. The calculated nodal displacements are found to be identical to the analytical solution. The second example is the static and dynamic numerical simulation of an arch dam. The displacements and stresses of static and dynamic loading conditions are calculated and compared to the results of ANSYS, respectively. Good agreement is observed for the results of SBFEM and ANSYS. The good accuracy and stability of 3D SBFEM make it be an attractive alternative method for the static and dynamic analysis of arch dams.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129263594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Explicit Finite Element Analysis of the Concrete Arch Dams from Local Damage to Whole Failure 混凝土拱坝从局部破坏到整体破坏的显式有限元分析

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656349

Shanshan Cui, Shuaizhao Jing, Jie Liu

引用次数: 0

Research on restoration and landscape remodeling of mining wasteland based on Brandi’s theory of restoration 基于Brandi恢复理论的矿山废弃地恢复与景观重塑研究

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656400

Zihan Yang

引用次数: 0

Study on hydraulic characteristics and optimization of the combined weir and hole baffle fishway rest pool 堰-孔挡板组合式鱼道休息池水力特性及优化研究

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656370

Xin Lian, Z. Ye, Wenwei Gu

{"title":"Study on hydraulic characteristics and optimization of the combined weir and hole baffle fishway rest pool","authors":"Xin Lian, Z. Ye, Wenwei Gu","doi":"10.1109/ICHCESWIDR54323.2021.9656370","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656370","url":null,"abstract":"According to the fish passage requirements of Cao’e River lock, a three-dimensional turbulent flow model of the fish passage with weir-hole combination bulkhead chamber was established, and the effects of lengthening the resting pool length and adjusting the bulkhead distribution on the resting pool were analyzed in terms of the flow pattern of the chamber, turbulent kinetic energy and the attenuation of the mainstream along the course. The results of the study show that: the three working conditions all have obvious mainstream against the wall phenomenon, two times the length of the fishway resting pool can basically meet the hydraulic requirements of fish on the resting pool, to three times the length of the pool, the resting pool reflux area increases insignificantly; for the straight section of the resting pool chamber, the heterolateral distribution than the same side of the distribution can produce more favorable flow patterns; resting pool length and the same side of the bulkhead heterolateral distribution on the resting pool turbulent kinetic energy effect is small.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"470 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123877807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Method to Simulate of Seismic Wave Prompting of SDOF System SDOF系统地震波激发的模拟方法

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656346

Z. Zeng, Qiujie Wang, Shuxiang Zhao, Guang-yuan Huang

引用次数: 0

An adaptive local mesh refinement strategy in numerical manifold method 数值流形法中的自适应局部网格细化策略

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656277

Dengxue Liu, Youliang Zhang, Shuling Huang, X. Ding, Yuting Zhang, Jun He

引用次数: 0

Influence of Automatic Detection on the Dynamic Response of the Large Diameter Bored Pile 自动检测对大直径钻孔灌注桩动力响应的影响

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656296

Hongsheng Wu, Yong Liu, HuiMin Cai, Yuedong Wu, Jian Liu

{"title":"Influence of Automatic Detection on the Dynamic Response of the Large Diameter Bored Pile","authors":"Hongsheng Wu, Yong Liu, HuiMin Cai, Yuedong Wu, Jian Liu","doi":"10.1109/ICHCESWIDR54323.2021.9656296","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656296","url":null,"abstract":"Information is the foundation of smart water conservancy, and we must attach great importance to the collection, monitoring and analysis of information; knowledge is the core of smart water conservancy, and new information technology must be applied to strengthen information mining, extraction and knowledge accumulation. The influence of automatic detection on the dynamic response of the large diameter bored pile is analyzed in this study. First, the sediment is considered as a fictitious soil pile and the Rayleigh-Love rod theory is introduced to establish the longitudinal dynamic governing equations for the pile and the fictitious soil pile to approximately consider the three-dimensional effect of the pile. Then, the dynamic governing equation for the surrounding soil is built based on the three-dimensional axisymmetric model. By means of Laplace transform, impedance function recursion and inverse Fourier transform, the dynamic governing equations for the soil-pile system are solved to derive the solution for dynamic response of the pile in the frequency and time domain. Based on the established solution, parameter sensitivity analysis is carried out to portray the three-dimensional effect of the large diameter bored pile and the influence of the thickness, density and longitudinal wave velocity of the sediment on the dynamic response of the pile. Finally, the reliability of the proposed solution is verified by comparing with the measured result.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125461137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parameter calibration of VIC model based on intelligent algorithm 基于智能算法的VIC模型参数标定

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656297

Yuqin Gao, Chenchen Zhao, Tong Zhou, Di Wu, Yue Liu

{"title":"Parameter calibration of VIC model based on intelligent algorithm","authors":"Yuqin Gao, Chenchen Zhao, Tong Zhou, Di Wu, Yue Liu","doi":"10.1109/ICHCESWIDR54323.2021.9656297","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656297","url":null,"abstract":"The parameters of the hydrological model are important parts of the model, and parameter calibration plays a key role in the output of the model. To analyze the influence of different calibration methods on the simulation results of the VIC hydrological model, the parameter calibration methods are coupled with the VIC model combining the characteristics of the Qinhuai River Basin. Three automatic optimization methods, including the genetic algorithm, simulated annealing algorithm and SCE-UA(shuffle complex evolution algorithm) algorithm, are used to automatically calibrate the 6 parameters of the VIC model. Three evaluation methods of the Nash efficiency coefficient (NSE), mean square error (MSE) and percentage deviation (PBIAS) are used to optimize the parameters. The model’s simulated runoff results are compared and analyzed. The results show that the SCE-UA algorithm with the Nash efficiency coefficient as the objective function can make the VIC model parameter calibration achieve ideal results. Different objective functions have different effects on the peak runoff during the model simulation verification period. By optimizing the parameters with the Nash efficiency coefficient and mean square error as objective functions, the simulated peak runoff is more similar to the measured data. The results can provide a reference for other models parameters automatic calibration, and are of great practical significance for rapid emergency response of hydrological simulation and forecasting.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125576337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Retardation and Sudden Stoppage Laws of Single-Particle Sediments with Different Forms of Motion in Hydraulic Jump Region 水跃区不同运动形式的单颗粒沉积物缓速与骤停规律研究

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656268

G. G. Wang, W. L. Xu, S. Fu, W. Wei

{"title":"Study on Retardation and Sudden Stoppage Laws of Single-Particle Sediments with Different Forms of Motion in Hydraulic Jump Region","authors":"G. G. Wang, W. L. Xu, S. Fu, W. Wei","doi":"10.1109/ICHCESWIDR54323.2021.9656268","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656268","url":null,"abstract":"The mountain torrents triggered by heavy rainfall usually flow into rivers by carrying a large quantity of sediment particles. Under the retardation of local hydraulic jump, which is common in natural river course, the upstream sediments will silt up in the hydraulic jump region, thus blocking the river course, leading to the rise of riverbed water level and causing more serious mountain torrent disasters. In this study, the influences of different forms of motion of single-particle sediments in hydraulic jump region on the retardation and sudden stoppage characteristics in this region were explored through flume experiment. The experimental results revealed that single-particle sediments presented three forms of motion-translation, rolling and saltation-during the retardation and sudden stoppage process in the hydraulic jump region. The forms of motion had a bearing on the speed and acceleration changes, peak acceleration and silting position of single-particle sediments. When the single-particle sediments did translational motion, their speed dropped more quickly, the peak acceleration was greater and they silted up at a nearer position. Under the saltation motion, their speed declined more slowly, the peak acceleration was smaller, and they silted up at a farther position. The situation was between the two when the single-particle sediments made rolling motion.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115749265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deformation Prediction Method of Deep Foundation Pit Support Structure Based On GA-BP 基于GA-BP的深基坑支护结构变形预测方法

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656371

Junwei Wen, Ruixia Guo

{"title":"Deformation Prediction Method of Deep Foundation Pit Support Structure Based On GA-BP","authors":"Junwei Wen, Ruixia Guo","doi":"10.1109/ICHCESWIDR54323.2021.9656371","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656371","url":null,"abstract":"Aiming at the low prediction quantile of the traditional deformation prediction method of deep foundation pit support structure, a deformation prediction method of deep foundation pit support structure based on GA-BP is designed. Through the field measured deformation information of deep foundation pit retaining structure, the deformation element grid of deep foundation pit retaining structure is divided, the time fractal characteristics of deep foundation pit retaining structure deformation structure are analyzed, and the deformation prediction mapping error of deep foundation pit retaining structure is calculated based on the training data of GA-BP algorithm, so as to realize the deformation prediction of deep foundation pit retaining structure. The experimental results show that the fractal dimension of the designed prediction method is significantly higher than that of the control group, which can solve the problem of low prediction quantile of the traditional deformation prediction method of deep foundation pit support structure.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132130534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0