碩士 / 國立交通大學 / 環境工程所 / 90 / The rapid development of an industrial district may significantly increases the amount of wastewater generated within the district and therefore exceeds the transport capability originally designed of its sewer network. Excessive overload, or called surcharge, of a sewer network can cause serious flooding problems during the peak season. Two alternatives are usually employed to resolve this surcharge problem: (1) placing relief sewer pipes to divert flow from overloaded pipes into other downstream pipes that can accept the diverted flow; and (2) replacing overloaded pipes by larger ones. Various factors including flow rate, velocity, depth, and capacity of the sewer network should be carefully evaluated before a good alternative can be selected. This study proposed a systematic design procedure to facilitate this analysis for obtaining appropriate alternatives to resolve a surcharge problem. The EXTRAN module of the SWMM model is used to simulate the flow pattern in a sewer network. A case study for the west portion of the sewer network in the Hsinchu Science-based Industrial Park is implemented. Feasible layouts for resolving the surcharge problem are generated by the proposed procedure. Appropriate alternatives are selected primarily based a cost function. The results show that layouts with pipe replacements are more cost effective than those with relief pipes. However, both relief and replacement approaches can effectively resolve the surcharge problem of the studied area.
| Identifer | oai:union.ndltd.org:TW/090NCTU0515022 |
| Date | January 2002 |
| Creators | Chang-Chi Chen, 陳長祺 |
| Contributors | Jehng-Jung Kao, 高正忠 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 0 |
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