The Preliminary of Silting Reduction in Estuary ─ A Case of Luermen Drainage Tainan

  • 陳 冠中

Student thesis: Doctoral Thesis

Abstract

Luermen Stream estuary is located at southwest coast of Taiwan between Tsenwen Stream and Yanshui Stream Siltation from drainage along Luermen Stream Chronic chronically accumulates in river channel because of slow flow velocity In addition Luermen Stream estuary is located at surf zone so longshore current cannot flush away siltation As a result siltation in river channel become very serious By performing in-situ investigation and simulation of estuary training jetty extension by 50 100 and 150m Simulation results showed that training jetty extension reduces siltation more effectively in winter than in summer because wave direction In winter volume of siltation reducing increases with length of training jetty extension Considering cost and benefit training jetty extension by 100m is the most beneficial In addition training jetty effect was reversed in some area after training jetty extension increased from 100 to 150m
Date of Award2020
Original languageEnglish
SupervisorJan-Mou Leu (Supervisor)

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