【摘要】：瀾滄江-湄公河航道上哈樂灘具有彎、淺、險、窄、急等特點。根據(jù)現(xiàn)場調(diào)查資料,結(jié)合數(shù)學(xué)模型計算結(jié)果,分析了哈樂灘成灘原因及礙航特性。哈樂灘右岸楠羅河山洪沖出的石塊及大卵石堆積在溪口形成沖洪積扇,近年來沖積扇發(fā)育,進一步侵占河床泄水斷面,同時岸線凹凸不平,導(dǎo)致灘險上段水流彎曲,中段坡陡流急,船舶枯水上灘困難。針對哈樂灘灘險成因及礙航特點,提出炸礁和修筑整治建筑物結(jié)合的措施,解決灘險礙航問題。
[Abstract]:Lancang-Mekong channel Hale beach has bend, shallow, dangerous, narrow, urgent and other characteristics. On the basis of field investigation data and mathematical model calculation results, the causes and navigation hindrance characteristics of Hale Beach are analyzed. The rocks and large pebbles flushed out of the mountain torrents of the Nanluo River on the right bank of Hale Beach formed alluvial fan at the mouth of the stream. In recent years, alluvial fans have developed, further encroaching on the drainage section of the riverbed, and at the same time, the bank line is uneven, resulting in the water flow bending in the upper section of the beach danger. The steeply current of the middle slope makes it difficult for the ship to go up to the beach with low water. In view of the cause of formation of Hale beach danger and the characteristics of hindrance to navigation, the measures of combination of reef blasting and building renovation are put forward to solve the problem of hindrance to navigation in Hale beach.
【作者單位】： 中交第二航務(wù)工程勘察設(shè)計院有限公司;
【分類號】：U617

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