endobj <> The trenchless rehabilitation allows a quick, cheap and durable rehabilitation of pipes within buildings, buried pipes and pipe connections. Google Scholar, Deb K, Pratap A, Agarwal S, Meyarivan T (2002) A fast and elitist multi objective algorithm: NSGA-II. Article Preview. - 45.56.220.45. uuid:d50b6990-ae17-11b2-0a00-f0ca6d4dfc7f RFP: Rehabilitation of Water and Drainage network, Yemen Mercy Corps is an international non-governmental organization working in Yemen since 2010. The organization implements a range of humanitarian programs including water, sanitation, hygiene, food security, livelihood development and child protection. 234 0 obj <> The approach integrates a multi-objective evolutionary algorithm (MOEA) and EPA-SWMM simulation model to find cost-effective rehabilitation measures under structural failure of critical elements in the network. A rehabilitation approach based on resiliency is proposed in this paper for urban drainage systems using structural improvement of bottlenecks. The system is expected to function to serve the storm water drainage needs of the Kandy Municipal Council (KMC) area and reduce the incidence of flooding and thereby improves the health and sanitation conditions of the urban community. 2020-04-07T13:52:21-07:00 endobj <> endobj 2020-04-07T13:52:21-07:00 <> Six rehabilitation methods were linked to hydraulic performance (pipe diameter) and breaking risk. <> The resilience-based approach enhances system capability to act very flexible against exceptional loads such as bridge/culvert blockage during the floods. endobj In such situations, high intensity rainfall causes heavy runoff that overwhelms the drainage system. endobj 240 0 obj Multi-Objective-Rehabilitation Of Urban Drainage Systems Within The Flood Risk Framework In this study, rather than focusing on modifying a specific model, we studied the performance of different calculation structures in a multi-objective optimization framework. <>14]/P 26 0 R/Pg 9 0 R/S/Link>> J Flood Risk Manag 10(3):326–338, Yazdi J, Salehi Neyshabouri SAA, Golian S (2014) A stochastic framework to assess the performance of flood warning systems based on rainfall-runoff modelling. <>12]/P 25 0 R/Pg 9 0 R/S/Link>> The function of the field drainage system is to control the water table, whereas the function of the main drainage system is to collect, transport, and dispose of the water through an outfall or outlet. Institute for Water Resources Hydrologic Engineering Center, Davis, Vojinovic Z, Sahlu S, Torres AS, Seyoum SD, Anvarifar F, Matungulu H, Barreto W, Savic D, Kapelan Z (2014) Multi-objective rehabilitation of urban drainage systems under uncertainties. endobj endobj The present paper deals with such issues and describes a methodology that has been developed to accommodate the effects of uncertainties into the design and rehabilitation of drainage systems. <> The approach outperforms the conventional methods (particularly compared to a previous rehabilitation proposal for the study area) when the system encounters unexpected blockage conditions. Results show that the optimal design obtained by the proposed approach can decrease network flooding from 3.5 × 106 m3 to near zero with at most 23% lower investment costs relative to the traditional design. Remediation techniques for mining waste and acid mine drainage. uuid:d50b698f-ae17-11b2-0a00-90d090010000 <> 29 0 obj endobj A rehabilitation approach based on resiliency is proposed in this paper for urban drainage systems using structural improvement of bottlenecks. This is a preview of subscription content, log in to check access. endobj Urban Water J 8(1):13–27, Tahmasebi Birgani Y, Yazdandoost F (2016) Role of resilience in sustainable urban Stormwater management. endobj 5 0 obj <> 241 0 obj Drainage systems also prevent the accumulation of stagnant water, which can encourage mosquitoes to breed. <> <> Therefore, it is necessary to boost it up regularly, especially if you are above 40, so that your body runs like a well-oiled machine. <> Tender for the Rehabilitation of Drainage System - in Ninawa. contributing additional runoff to this small urban watershed, additional new 50% of the existing drainage system and rehabilitation works should be implemented to modify the draining capacity of the existing scheme. The integration of these models allows the exploration of several planning scenarios, in this way is possible to help the decision makers with tools and methods to anticipate bottlenecks and solutions in the urban drainage system. 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