scholarly journals Application Analysis of Information Technology in the Yellow River Flood Control Project Management

2021 ◽  
Vol 768 (1) ◽  
pp. 012115
Author(s):  
Yuan Zhanjun ◽  
Zhao Liang
Keyword(s):  
Information Technology ◽  
Project Management ◽  
Flood Control ◽  
Yellow River ◽  
The Yellow River ◽  
Application Analysis ◽  
River Flood

scholarly journals Evaluation of Environmental and Ecological Impacts of the Leading Large-Scale Reservoir on the Upper Reaches of the Yellow River

2019 ◽  
Vol 11 (14) ◽  
pp. 3818
Author(s):  
Jun Qiu ◽  
Tie-Jian Li ◽  
Fang-Fang Li
Keyword(s):  
Flood Control ◽  
Large Scale ◽  
Yellow River ◽  
Yellow River Basin ◽  
Water Area ◽  
Economic Benefits ◽  
Control Area ◽  
Ecological Impacts ◽  
The Yellow River ◽  
Water Demands

Large-scale reservoirs have played a significant role in meeting various water demands and socio-economic development, while they also lead to undeniable impacts on the environment and ecology. The Longyangxia reservoir located on the Yellow River is the first large-scale reservoir on the upper Yellow River with a control area of 18% of the entire Yellow River Basin. Since it was put into operation in 1987, it has made great contributions to the national economy for over 30 years. In this study, the socio-economic benefits of the Longyangxia reservoir in power generation, water supply, flood control, and ice prevention are investigated. More importantly, its impacts on the ecology and environment are also presented and analyzed, such as the impacts on river morphology, flow regimes, peak flow, fish, phytoplankton, and zooplankton. It can be concluded that the construction of the Longyangxia reservoir contributes greatly to socio-economic benefits, the water area nearby has formed a new ecological environment, and the trophic level of the aquatic environment has probably increased.

Effect of Projects within River Courses on Flood Control through Superposition Calculation Method

2014 ◽  
Vol 641-642 ◽  
pp. 167-170
Author(s):  
Xin Liu ◽  
Feng Qun Wang ◽  
Juan Du ◽  
Li Qin Li
Keyword(s):  
Calculation Method ◽  
Flood Control ◽  
Yellow River ◽  
Water Area ◽  
The Yellow River ◽  
Actual Situation ◽  
River Floodplain ◽  
Floodplain Development ◽  
Scientific Decision ◽  
Control Management

Henan Yellow River floodplain is the area for flood flowing, flood detention and sand sediment; it is also necessary for the production and living. With the rapid economic development along the Yellow River, floodplain development is increasing, occupying some land and water area. Due to the lack of unified planning, they have brought certain difficulties to flood control management and scientific decision-making. This paper first proposed specific superposition scope and calculation method for projects within river courses. Compared with the previous single calculation of backwater and scouring, it more truly, accurately reflect the actual situation of projects within river courses.

scholarly journals Irrigation, damming, and streamflow fluctuations of the Yellow River

2020 ◽  
Author(s):  
Zun Yin ◽  
Catherine Ottlé ◽  
Philippe Ciais ◽  
Feng Zhou ◽  
Xuhui Wang ◽  
...  
Keyword(s):  
Land Surface ◽  
Flood Control ◽  
Yellow River ◽  
Dominant Factor ◽  
Anthropogenic Factors ◽  
The Yellow River ◽  
Surface Model ◽  
Operation Rules ◽  
Monthly Streamflow ◽  
Artificial Reservoirs

Abstract. The streamflow of the Yellow River is strongly affected by human activities of irrigation and dam regulation. Many attribution studies focused on the long-term trend of discharge, yet the contributions of these anthropogenic factors to streamflow fluctuations have not been well quantified. This study aims to quantify the roles of irrigation and artificial reservoirs in monthly streamflow fluctuations of the Yellow River from 1982 to 2014 by using the global land surface model ORCHIDEE with a new developed irrigation module, and a separate offline dam operation model. Validation with obsevations demonstrates the ability of our model in simulating the main hydrological processes under human disturbances in the Yellow River basin. Irrigation is found to be the dominant factor leading to 63.7 % reduction of the annual discharges. It might lead to discharge increase in the summer if irrigation is widely applied during a dry spring. After illustrating dam regulation as the primary driver affecting streamflow seasonality, we simulated the changes of water storages in several large artificial reservoirs by a new developed dam model, which does not require any prior knowledge from observations but only implements two simple operation rules based on their inherent regulation capacities: reducing peak flows for flood control and securing base flows during the dry season. Inclusion of dams with this simplified model substantially improved the simulated discharge by at least 42 %. Moreover, simulated water storage changes of the LongYangXia and LiuJiaXia dams coincide well with observations with a high correlation value of about 0.9. We also found that the artificial reservoirs can affect the inter-annual fluctuations of the streamflows, which however was not reproduced faithfully by our dam model due to lack of annual operation rules. From the mismatches between simulations and observations, we inferred the potential impacts of multiple medium reservoirs and five large irrigation districts (e.g., the Hetao Plateau), which were ignored in most previous hydrological studies.

Experimental Research on Preventing Root-Stones Loss with Tetrahedron-Like Concrete Penetrating Frames

2011 ◽  
Vol 233-235 ◽  
pp. 1930-1934
Author(s):  
Jie Shi ◽  
Xiao Lei Zhang ◽  
Zun Xin Huang
Keyword(s):  
Water Flow ◽  
Experimental Research ◽  
Flood Control ◽  
Yellow River ◽  
The Yellow River ◽  
Direct Impact ◽  
The Lower Yellow River ◽  
Scour Holes ◽  
Protection Technology ◽  
Flood Diversion

The root-stones loss for flood control project is serious in the Lower Yellow River, and the tetrahedron-like concrete penetrating frame is a new protection technology. The Experiment on preventing root-stones loss of flood diversion and regulation works in Taohuayu with tetrahedron-like concrete penetrating frames in the Xingyang reach of the Yellow River. The experiment results show that: (1) the technology of tetrahedron-like concrete penetrating frame is simple, and it can make root-stones very steady; (2) the tetrahedron-like concrete penetrating frame can effectively reduce the depth of scour holes in front of dam and slow the direct impact of water flow on the dam body; (3) the tetrahedron-like concrete penetrating frame can effectively reduce root-stones loss and save lots of stones; (4) the tetrahedron-like concrete penetrating frames could be made use of for the project foundation stabilization, and they are thrown into the slope of root-stones and the riverbed outside slope toe within a certain width to increase the effect of root-stones protection better.

scholarly journals Brief discussion on the water-sediment regulation in the Ningxia-Inner Mongolia reach of the Yellow River under the changing environment

2018 ◽  
Vol 246 ◽  
pp. 01035
Author(s):  
Xiaonan Li ◽  
Chen Zhang ◽  
Hongwu Zhang ◽  
Lisheng Zhang ◽  
Deyu Zhong
Keyword(s):  
Inner Mongolia ◽  
Flood Control ◽  
Yellow River ◽  
Three Dimensional ◽  
Sediment Concentration ◽  
The Yellow River ◽  
Three Dimensional Model ◽  
Response Characteristics ◽  
Discharge Duration ◽  
Gauging Station

The effective reservoir sediment regulation measure is extremely significant for the sedimentladen river. It should not only extend the reservoir life, but also pose favorable conditions for the management of the river-reservoir system. Especially, the remarkable changes in the hydrological processes challenge to the system in some respects, like flood control, rive training, ecological environment improvement and so on. This paper gives a brief discussion on the representative existing problems in Ningxia-Inner Mongolia reach of the Yellow River. The water-sediment parameters and artificial regulation factors are then summed through a comprehensive literature review. Then we investigate the response to the different scales of floods in the Inner Mongolia reach through a three-dimensional model, in which the simulation region is from Bayangaole gauging station to Toudaoguai gauging station. With respect to the riverbed deformation, it is effective to control the relationship between the incoming water and sediment to restrain the shrinkage of the main channel; and surely that there exists a nonlinear relationship between channel scouring and incoming water-sediment conditions. Through data analysis and simulation results, the response characteristics of different watersediment regulation boundary conditions can be obtained, such as the ratio between sediment concentration and discharge, the discharge duration and the discharge, which is favorable to further water-sediment regulation of the reservoir and the management in Ningxia-Inner Mongolia reach of the Yellow River.

scholarly journals Experimental Study of EICP Combined with Organic Materials for Silt Improvement in the Yellow River Flood Area

2020 ◽  
Vol 10 (21) ◽  
pp. 7678
Author(s):  
Hua Yuan ◽  
Guanzhou Ren ◽  
Kang Liu ◽  
Wei Zheng ◽  
Zhiliang Zhao
Keyword(s):  
Calcium Carbonate ◽  
Organic Materials ◽  
Yellow River ◽  
Optimum Concentration ◽  
The Yellow River ◽  
Brown Sugar ◽  
Nucleation Sites ◽  
Carbonate Deposition ◽  
River Flood ◽  
Calcium Carbonate Deposition

Enzyme-induced carbonate precipitation (EICP) is an emerging biogeotechnical technique that uses free urease to improve soil. Despite its advantages of eliminating complex microbial cultures and reducing reaction byproducts, its efficiency is considered lower than that of microbial induced calcite precipitation (MICP) due to the lack of nucleation sites that induce calcium carbonate deposition. To enhance the strengthening efficiency of EICP for fine-grained soils, an improved EICP method that involves adding an appropriate mass concentration of organic materials (skim milk powder, glutinous rice powder, and brown sugar) into urease solution was proposed and applied to reinforce silt in the Yellow River flood area of China. The preferred concentration and ratio of cementation solution and the optimum concentration of each of the organic materials were determined. Then, the reinforcement effect of the improved EICP at the optimum concentration was compared with the control group, and the reinforcement mechanism for this method was discussed. The results show that after the organic material inclusions, soil strength can be enhanced by 33% compared with EICP-treated soil and is nearly four times higher than that of untreated soil. The superiority of this method over traditional EICP and MICP mainly stems from its ability to provide templates and nucleation sites for calcium carbonate deposition and to improve the size, morphology, and structure of calcium carbonate crystals.

The Corresponding Numerical Analysis of Dike Typical Diseases and Electrolog Data

2011 ◽  
Vol 103 ◽  
pp. 246-251
Author(s):  
Qing Ming Zhang ◽  
Shuai Xu ◽  
Yuan Bao Leng
Keyword(s):  
Numerical Simulation ◽  
Control System ◽  
Steady State ◽  
Flood Control ◽  
Yellow River ◽  
High Density ◽  
Current Transfer ◽  
Electrical Method ◽  
Steady State Current ◽  
River Flood

Dike is an important component of Yellow River flood control system, but its security situation is not optimistic. High-density electrical method is an effective mean of dike typical diseases detection, we use steady-state current transfer analysis of software ANSYS to establish the numerical simulation model to analyze the detection resolution effects of dike typical diseases depth and scale changes on different detection devices of high-density electrical method, establish the correspondence of dike typical disease and electrolog data.

Test Study of Pore Water Pressure during Dynamic Compaction at the Subgrade of Highway in the Yellow River Flood Area

2011 ◽  
Vol 374-377 ◽  
pp. 436-439
Author(s):  
Kai Yao ◽  
Zhan Yong Yao ◽  
Xiu Guang Song ◽  
Qing Sen Shang
Keyword(s):  
Pore Water ◽  
Pore Water Pressure ◽  
Yellow River ◽  
Water Pressure ◽  
Dynamic Compaction ◽  
The Yellow River ◽  
Silty Clay ◽  
Excess Pore Water Pressure ◽  
River Flood ◽  
Excess Pore

The Yellow River flood area mainly consisted of silt and silty clay. Water level observing holes and pore water pressure gauges were embedded in the test section. The observation results showed that: The pore water pressure of 3m and 5m grew slowly at the beginning. With the increase of ramming strike and the total ramming strike energy, the fourth hit pore water pressure mutated and then grew slowly. The pore water pressure of 7m and 9m grew slowly all the time. Because of the well point dewatering, the excess pore water pressure dissipated very soon. 70~75% of the excess pore water pressure of the first pass dissipated 3 hours after ramming strike, then the excess pore water pressure dissipated slowly. The excess pore water pressure of 3m and 5m grew significantly, so the effective reinforcing depth of dynamic compaction was 5m.

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