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聊城市骨干排涝河道经70年代初期大规模疏浚治理后,形成集排涝、防洪、蓄水灌溉为一体的防洪工程体系,经过20多年的运行,由于淤积、主槽边坡坍塌,使干流防洪排涝能力比原设计降低了40％～70％。为准确地反映现状条件下各干流河道的防洪排涝能力、以对可能发生的洪水进行科学调度,本文对漳卫河、徒骇河、马颊河3条河道行洪能力进行了对比分析。
After over large-scale dredging treatment in the early 1970s, Liaocheng’s backbone drainage channel has formed a flood control engineering system integrating drainage, flood control and water storage irrigation. After more than 20 years of operation, due to siltation, main slope collapses to flood and drain the main stream Ability to reduce the original design 40% to 70%. In order to accurately reflect the flood control and drainage capacity of all main rivers under current conditions and to conduct a scientific dispatch of possible floods, this paper compares and analyzes the flood discharge capacity of the three channels including Zhangwei River, Tuhai River and Majiahe River.