生态护坡在蕲春特殊地质条件下的应用  

Application of ecological slope protection under special geological conditions in Qichun

作　　者：刘瑞勇 王晓燕 李冬 LIU Ruiyong;WANG Xiaoyan;LI Dong(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China;Changjiang Waterway Institute of Planning and Design,Wuhan 430040,China;Changjiang Waterway Survey Design and Research Institute(Wuhan)Co.,Ltd.,Wuhan 430040,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063 [2]长江航道规划设计研究院,湖北武汉430040 [3]长江航道勘察设计院(武汉)有限公司,湖北武汉430040

出　　处：《水运工程》2023年第8期144-148,共5页Port & Waterway Engineering

摘　　要：针对李家洲边滩地形地貌及地质条件,根据滩面地势平坦、流速缓慢,表层为软塑、局部流塑状淤泥质粉质黏土,具有高含水率、高孔隙比、低渗透性、较高灵敏度、低强度、高压缩性、流变性等工程性质,陆上滩面防护选择透水性好、能促进泥沙落淤、有利于植被生长、改善滩面生态环境、环保性较好的三维加筋网垫。大大减少了滩面的土方开挖,有利于水土保持,对自然生态、水流环境影响小,具有生态修复功能,整体生态效果良好。稳定了当前滩槽格局,防止航道条件向不利方向发展。In view of the landform and geological conditions of Lijiazhou beach,according to the flat terrain and slow flow velocity of the beach surface,the surface layer is soft plastic,local flow plastic muddy silty clay,which has high water content,high void ratio,low permeability,high sensitivity,low strength,high compressibility,rheology and other engineering properties.For onshore beach surface protection,3D stiffened mesh cushion with good permeability,which can promote sediment deposition,facilitate vegetation growth,improve the ecological environment of beach surface,and have good environmental protection,shall be selected.It greatly reduces the earthwork excavation on the beach surface,which is conducive to water and soil conservation,has little impact on the natural ecology and water flow environment,has the ecological restoration function,and the overall ecological effect is good.The current pattern of shoal and channel has been stabilized to prevent the channel conditions from developing in an unfavorable direction.

关 键 词：蕲春 地质条件 护滩结构形式 三维加筋网垫 

分 类 号：U617[交通运输工程—船舶及航道工程]