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Deterioration and Optimal Rehabilitation Modelling for Urban Water Distribution Systems - IHE Delft PhD Thesis Series Yi Zhou 1. izdevums
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Deterioration and Optimal Rehabilitation Modelling for Urban Water Distribution Systems - IHE Delft PhD Thesis Series
Yi Zhou
Pipe failures in water distribution systems can have a serious impact and hence it?s important to maintain the condition and integrity of the distribution system. This book presents a whole-life cost optimisation model for the rehabilitation of water distribution systems. It combines a pipe breakage number prediction model with a pipe criticality assessment model, which enables the creation of a well-constructed and more tightly constrained optimisation model. The pipe breakage number prediction model combines information on the physical characteristics of the pipes with historical information on breakage and failure rates. A weighted multiple nonlinear regression analysis is applied to describe the condition of different pipe groups. The criticality assessment model combines a pipe?s condition with its hydraulic significance through a modified TOPSIS. This model enables the optimisation to focus its efforts on those important pipes. The whole life cost optimal rehabilitation model is a multiple-objective and multiple-stage model, which provides a suite of rehabilitation decisions that minimise the whole life cost while maximising its long-term performance. The optimisation model is solved using a modified NSGA-II. The utility of the developed models is that it allows decision makers to prioritize their rehabilitation strategy in a proactive and cost-effective manner.
236 pages
| Mediji | Grāmatas Paperback Book (Grāmata ar mīksto vāku un līmēto muguru) |
| Izlaists | 2018. gada 13. jūnijs |
| ISBN13 | 9781138322813 |
| Izdevēji | Taylor & Francis Ltd |
| Lapas | 248 |
| Izmēri | 241 × 170 × 23 mm · 628 g |
| Valoda | Angļu |
