八字脑滩群航道整治数学模型计算与分析

发布时间：2018-05-15 09:01

  本文选题：航道工程 + 数学模型　； 参考：《重庆交通大学学报(自然科学版)》2016年02期

【摘要】：嘉陵江八字脑滩群位于凤仪航电枢纽库尾,由于马回电站发电泄水口与船闸出口分散布置,导致八字脑滩段右汊槽窄水浅,左汊又极其弯曲和狭窄,不具备通航条件;同时,大石塘滩段的沙卵石江心洲将嘉陵江水分为左右两汊,左汊较顺直,但枯期水深不足,右汊弯曲半径较小,不能满足高等级航道建设标准。针对嘉陵江八字脑滩群河段的碍航特征,应用数学模型对两种不同的整治方案进行水流条件以及泥沙淤积情况计算分析与比较。研究结果表明:该数学模型可较好地模拟河段水流的运动及泥沙的淤积情况;从整治效果看,方案一相对较优,泥沙回淤量较少,航槽相对稳定,可作为该滩整治方案,供设计参考。
[Abstract]:The Bazinaotan Group of Jialing River is located at the tail of Fengyi Navigation and Power Hub. Due to the scattered arrangement of the power discharge and the shiplock outlet of the Mahui Power Station, the right branch of the Bazinao beach section has narrow water, and the left branch is extremely curved and narrow, so it does not have navigable conditions; at the same time, The water of Jialing River is divided into two branches at Shitang beach, the left branch is straight, but the depth of water in dry period is insufficient, and the radius of right branch is small, which can not meet the construction standard of high grade waterway. In view of the characteristics of obstruction of navigation in the Bazhuangnaotan reach of Jialing River, two different regulation schemes were analyzed and compared by using mathematical models. The results show that the mathematical model can well simulate the flow movement and sediment deposition in the reach of the river, and from the view of the regulation effect, the first scheme is relatively better, the amount of sediment silting is less, and the channel is relatively stable, so it can be used as the regulation scheme of the beach. For design reference.
【作者单位】： 重庆交通大学水利水运工程教育部重点实验室国家内河航道整治工程技术研究中心;重庆交通大学西南水运工程科学研究所;重庆第二师范学院;
【基金】：国家自然科学基金项目(41306078) 内河航道整治技术交通行业重点实验室项目(NHHD-201514) 国家内河航道整治工程技术研究中心水利水运工程教育部重点实验室项目(SLK2016B03)
【分类号】：U617
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本文编号：1891816