drainage system Articles
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City drainage in ancient China
This paper gives an overview of the evolution of city drainage in ancient China, and analyzes the achievement of drainage of such cities as Pingliangtai in Henan province, Xibo of Shang Dynasty, Linzi, the capital of the State of Qi, Chang'an, the capital of Han and Tang Dynasties, Kaifeng, the Eastern Capital of Northern Song Dynasty, Ganzhou, Dadu, the capital of Yuan Dynasty; and Beijing, the ...
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Multi-objective rehabilitation of urban drainage systems under uncertainties
Urban drainage systems are subject to many drivers which can affect their performance and functioning. Typically, climate change, urbanisation and population growth along with aging of pipes may lead to uncontrollable discharges and surface flooding. So far, many researchers and practitioners concerned with optimal design and rehabilitation of urban drainage systems have applied deterministic ...
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Dropshaft cascades in urban drainage systems
Dropshaft cascades are typical elements of sewer systems in steep urban catchment basins. The design of a dropshaft cascade, which is generally addressed as an optimization problem, also needs to consider the subsequent effects induced on the flow by the different elements of the cascade. Experimental research has been performed at the hydraulic engineering laboratory of the University of ...
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Project - Artificial Grass AirDrain Drainage Installed at OSU T. Boone Pickens Stadium
Artificial Grass Drainage System installed at Oklahoma State Universities T. Boone Pickens Stadium they enjoy advantages that only a modern synthetic drainage system can provide. 100% vertical drainage under the entire synthetic turf surface allows for playability under almost any weather conditions. Making infill migration almost a thing of the past. The AirField drainage system exhibits a ...
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Past, present, and future design of urban drainage systems with focus on Danish experiences
Climate change will influence the water cycle substantially, and extreme precipitation will become more frequent in many regions in the years to come. How should this fact be incorporated into design of urban drainage systems, if at all? And how important is climate change compared to other changes over time? Based on an analysis of the underlying key drivers of changes that are expected to ...
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Modelling overland flows and drainage augmentations in Dubbo - Case Study
Introduction: Dubbo has experienced a number of overland flooding problems at several locations within the city. Council had formulated possible augmentation works to address the problems and was keen to confirm that the proposed works would address the local flooding problems. The drainage system in Dubbo faces a number of challenges due to the relatively flat grades on stormwater drainage lines ...
By Innovyze
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Cost benefit analysis
Flooding protection measures are often expensive. A cost benefit analysis can help to prioritise flood protection measures. Within the SAWA project an approach for cost benefit analysis (CBA) of flooding protection was developed (find the description under case studies below). In the following, some aspects to consider making a CBA are shown and some difficulties are pointed out. Compared with ...
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Urban drainage system planning and design – challenges with climate change and urbanization: a review
Urban drainage systems are in general failing in their functions mainly due to non-stationary climate and rapid urbanization. As these systems are becoming less efficient, issues such as sewer overflows and increase in urban flooding leading to surge in pollutant loads to receiving water bodies are becoming pervasive rapidly. A comprehensive investigation is required to understand these factors ...
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Performance assessment of separate and combined sewer systems in metropolitan areas in southern China
To assess the performance of urban drainage systems in metropolitan areas in southern China, 12 urban drainage systems, including nine separate sewer systems (SSSs) and three combined sewer systems (CSSs) were monitored from 2008 to 2012 in Shanghai and Hefei. Illicit connection rates of SSS were determined. The results indicate that serious illicit connections exist for most SSSs. Annual ...
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Water balance: case study of a constructed wetland as part of the bio-ecological drainage system (BIOECODS)
The Bio-ecological Drainage System, or BIOECODS, is an urban drainage system located at the Engineering Campus, Universiti Sains Malaysia. It consists of a constructed wetland as a part of the urban drainage system to carry storm water in a closed system. In this closed system, the constructed wetland was designed particularly for further treatment of storm water. For the purpose of studying the ...
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Project - Synthetic Turf With AirDrain at Softball Field in Benton, AR
AirDrain Drainage under Synthetic Turf Softball Field at Benton Arkansas High DOC Sports Construction and Legacy Links leaders in the synthetic turf building community completed a fantastic Softball installation featuring the AirField airdrain drainage system in Benton Arkansas, and the results speak for themselves. Here is the ASTM D4716 Flow Rate per Unit Width and Hydraulic Transmissivity ...
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Enlightenment from ancient Chinese urban and rural stormwater management practices
Hundreds of years ago, the ancient Chinese implemented several outstanding projects to cope with the changing climate and violent floods. Some of these projects are still in use today. These projects evolved from the experience and knowledge accumulated through the long coexistence of people with nature. The concepts behind these ancient stormwater management practices, such as low-impact ...
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An integrated cellular automata evolutionary-based approach for evaluating future scenarios and the expansion of urban drainage networks
The paper describes and demonstrates an integrated cellular automata evolutionary-based approach for evaluating future scenarios including the expansion of urban drainage networks. The approach can be used to derive a drainage network layout based on future land use scenarios. Two techniques are used to derive the layout of the system: one using agent-based modelling and the other using similar ...
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An integrated modeling approach to predict flooding on urban basin - Case Study
Introduction: Flooding on urban basins is intensifying due to rapid urbanization. Flooding primarily occurs because of drainage congestion of inland flow and/or over bank flow of river during severe rainfall event. Rapid urbanization is causing a major change in rainfall-runoff phenomenon and the drainage system as well. The overland flow pattern is becoming complex due to huge structural ...
By Innovyze
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GIS applications in urban drainage master planning - Case Study
Introduction: The City of Stratford, Ontario, located 150 km (94 mi.) west of Toronto, initiated the development of an infrastructure asset database in the early 1990’s and continues to develop digital mapping to support the maintenance and management of municipal services. In continuing these efforts, the City initiated the City-Wide Storm System Master Plan (the Study) in 2002 to evaluate ...
By Innovyze
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An appraisal of the qualifying role of hydraulic heritage systems: a case study of Qanats in central Iran
Hydraulic heritage systems, both underground and exposed, have been known to be sustainable for millennia. Persian and also Roman aqueducts are examples of such hydrosystems. Their value is often overlooked but they have undeniable advantages: they have functional interconnectedness with their surrounding society and ecology, which sometimes leads to revitalization plans. By using the notion ...
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Paleoflood marks in sandur morphometry as the result of the glacier surge (NW Poland)
In the Pomeranian marginal zone of the last Pleistocene glaciation specific morphometric features are found. They represent indicators of surging events affecting the individual outlet glacier lobes of the Scandinavian Ice Sheet margin. They are assumed to have been active during the climate warming of the Weichselian glaciation decay. Many tunnel valleys deep-rooted in the proximal slopes of ...
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Void Formation , what CCTV doesn`t show
A Brief Overview of Cavity Formation and Investigation in Drainage Pipes. CCTV investigation is used to assess structural condition of drainage pipes. Major faults and Breaks are relitively easy to identify , however CCTV does not show what is present around the pipe. Many major defects are caused by small pipe defects resulting in soil migration leading to major void formation and eventually to ...
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Cadbury Schweppes - Case Study
The effluent now initially treated by the Forbuster system efficiently removes the solid debris before de-oiling the effluent. Wedge wire screen now works as designed to remove fine solids and carbon from the ovens. All downstream processes operating at peak efficiencies. Site is now compliant with the effluent standards required, odor was dispelled and sludge haulage costs significantly reduced. ...
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Cadbury Schweppes, Bristol - Case Study
Customer: CADBURY SCHWEPPES Location: Bristol, UK Installation Date: 10th December 2005 Industry Sector: Manufacture of chocolate confectionary Pre-install Issues: The particular issue for this site was the contamination of waste water with Palm Oil used in the production process. The oil was passing through the conventional grease traps and contaminating the waste water plant. The ...
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