Research on the Vulnerability Risk Assessment of Water Supply Network under Earthquake

2014 ◽  
Vol 1079-1080 ◽  
pp. 456-459
Author(s):  
Xiao Juan Li ◽  
Fei Min Shen
Keyword(s):  
Water Supply ◽  
Quantitative Methods ◽  
Seismic Vulnerability ◽  
Network System ◽  
Supply Network ◽  
Pipe Network ◽  
Water Supply Network ◽  
Qualitative And Quantitative ◽  
Qualitative And Quantitative Methods ◽  
Supply Pipe

The seismic vulnerability of water supply network system refers to the network after the quake affected degree of each node. Based on mutation progression method, water supply pipe network seismic vulnerability is analyzed. Position in network topology and node service features as factors, which influences the network vulnerability assessment indexes is determined. The vulnerability level of the network could then be evaluated using qualitative and quantitative methods. This approach is validated to be effective and appropriate through an application to a post earthquake analysis of a water supply network system.

Research on Hydraulic Model Establishment of Water Supply Network

2014 ◽  
Vol 1073-1076 ◽  
pp. 1027-1030
Author(s):  
Xin Zhang ◽  
Kun Zhang ◽  
Rui Ying Wu
Keyword(s):  
Water Supply ◽  
Real Time ◽  
Hydraulic Model ◽  
Operating Conditions ◽  
Security Evaluation ◽  
Supply Network ◽  
Pipe Network ◽  
Monitoring Point ◽  
Water Supply Network ◽  
Network Status

Under the existing technical and financial conditions, we can not do real-time monitoring of the water supply network in each point. The hydraulic model establishment has created favorable conditions for simulating pipe network hydraulic model.According to the information from pressure monitoring point of water supply pipe network , we can use batch adjustment principle to analyze the calculated variables’ value. With limited resources to simulate real-time network status, build pipe water conservancy network model and simulate network real-time operating conditions. Hydraulic model provides the basis for the water supply network security evaluation, scheduling scheme, pumps and piping renewal.

scholarly journals An Accurate Leakage Localization Method for Water Supply Network Based on Deep Learning Network

2022 ◽  
Author(s):  
Juan Li ◽  
Wenjun Zheng ◽  
Changgang Lu
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Supply Network ◽  
Pipe Network ◽  
Positioning Accuracy ◽  
Water Supply Network ◽  
Specific Location ◽  
Pipe Section ◽  
Leak Location ◽  
Deep Learning Network

Abstract In the water supply network, leakage of pipes will cause water loss and increase the risk of environmental pollution. For water supply systems, identifying the leak point can improve the efficiency of pipeline leak repair. Most existing leak location methods can only locate the leak point approximately to the node or pipe section of the pipe network, but cannot locate the specific location of the pipe section. This paper presents a framework for accurate location of water supply network leakage based on ResNet. The framework is to pinpoint leaks to specific locations along the pipeline. The leakage of two kinds of pipe networks is simulated. For a pipe network containing 40 pipes, the positioning accuracy of the pipe section is 0.94, and the MSE of the specific location of the leakage point is 0.000435. For the pipe network containing 117 pipes, the positioning accuracy of the pipe section is 0.91, and the MSE of the specific location of the leakage point is 0.0009177, and the leak location ability under different sensor arrangements is analyzed. Experiments verify the robustness and applicability of the framework.

scholarly journals Converting Traditional Water Supply Network Into 24x7, using Water GEMS to Optimize Design

2021 ◽  
Vol 10 (1) ◽  
pp. 280-284
Author(s):  
Mukund M. Pawar ◽  
Nitin P. Sonaje
Keyword(s):  
Water Supply ◽  
Water Distribution ◽  
Supply System ◽  
Water Supply System ◽  
Water Supply Systems ◽  
Optimization Approach ◽  
Supply Network ◽  
Pipe Network ◽  
Economic Point ◽  
Water Supply Network

Water is all-natural driving force. Entire world struggles to preserve it. Given that India is among the top 12 water poor countries, water wastage is a critical issue for us. India's population is increasing day by day and thus the demand for water is continuously increasing. This growing demand can be met through an efficient water distribution network which can be designed using modern hydraulic software such as Water GEMS. Using the Water GEMS software Pandharpur city is selected to convert existing water supply system into 24 * 7 continuous water supply systems. The largest investment is the pipes used in the water distribution system. The design, modeling and optimization of pipes in water supply system from an economic point of view are very important. Therefore optimal pipe network design for converting existing network into 24x7 water supply system networks is carried out in this paper to reduce the cost using WaterGEM software. Study of the existing water supply network system for one zone (Ambika Nagar Zone10) is initially carried out from the Pandharpur area. The effect on demand, head loss gradient, and pressure development of the forecasted population is studied. In addition, cost optimization of the pipe network for the proposed 24x7 water supply system is carried out using a genetic algorithms Darwin optimization approach.

The Status of Livelihood Vulnerability and Its CopingCapacities of Urban Squatters in Kathmandu Metropolitan City, Nepal

Patan Pragya ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 19-32
Author(s):  
Chhabi Ram Baral
Keyword(s):  
Data Collection ◽  
Urban Area ◽  
Urban Areas ◽  
Quantitative Methods ◽  
Urban Poverty ◽  
Rural Poverty ◽  
Poor People ◽  
Qualitative And Quantitative ◽  
Qualitative And Quantitative Methods ◽  
The Status

Urban poverty is one of multidimensional issue in Nepal. Increasing immigration from the outer parts of Kathmandu due to rural poverty, unemployment and weak security of the lives and the properties are core causes pushing people into urban areas. In this context how squatter urban area people sustain their livelihoods is major concern. The objectives of the study are to find out livelihood assets and capacities squatters coping with their livelihood vulnerability in adverse situation. Both qualitative and quantitative methods are applied for data collection. It is found that squatters social security is weak, victimized by severe health problems earning is not regular with lack of physical facilities and overall livelihood is critical. This study helps to understand what the changes that have occurred in livelihood patterns and how poor people survive in urban area.

Sign in / Sign up

Export Citation Format

Share Document