石馬河流域阻水橋梁防洪評(píng)價(jià)分析

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摘 要：石馬河流域內(nèi)樟木頭鎮(zhèn)現(xiàn)有8座舊橋不能滿足防洪要求，需對(duì)現(xiàn)有橋梁進(jìn)行改擴(kuò)建。該研究以圣羅蘭橋?yàn)槔?，從阻水橋梁?duì)石馬河流域的壅水、河勢(shì)影響、堤防穩(wěn)定和河道沖淤方面的影響進(jìn)行了系統(tǒng)分析，并根據(jù)舊橋阻水嚴(yán)重的情況及工程建設(shè)對(duì)河道的影響，提出了合理的安全防護(hù)措施。

關(guān)鍵詞：防洪評(píng)價(jià);阻水;河勢(shì)影響

中圖分類號(hào) U442.3+3 文獻(xiàn)標(biāo)識(shí)碼 A 文章編號(hào) 1007-7731（2022）05-0159-03

Abstract： The existing 8 old bridges in Zhangmutou town of the Shima river basin can′t meet the flood control requirements， existing bridges need to be renovated and extended. This study takes the Saint Laurent Bridge as an example， based on the analysis of the influence of blocked bridges on the stability of embankments and river erosion and silting in Shima River Basin， reasonable safety protection measures are put forward according to the serious water blocking situation of old Bridges and the influence of engineering construction on river.

Key words： Flood control evaluation; Water blocking; River situation impact

在河道管理范圍內(nèi)開(kāi)展工程建設(shè)活動(dòng)，往往會(huì)導(dǎo)致河道水流形態(tài)變化，不利于河道維持沖淤平衡，甚至有的工程會(huì)影響河道水質(zhì)和河勢(shì)穩(wěn)定，對(duì)水利工程管理和防汛搶險(xiǎn)有著較大影響[1]。（剩余3399字）