2013斗地主下载

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      1. 欢迎进入河北中泰信公路工程有限公司官方网站!主要业务:客土喷播,公路边坡绿化,边坡防护网施工!
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        公路边坡绿化需要秉承哪些基本原则?

        [ 发布日期:2018-05-30] 点击:14477

        公路边坡绿化主要目的是防止流水冲洗、风蚀、保护路基、降低噪音、吸收有害气体、创造柔美的行车环境。路堤边坡的绿化,因为土质和保水机能很差,应尽量不破坏天然地形地貌和植被,采用抗逆性强、根系发达、易于成活、便于治理、兼顾景观效果的多年生草本或木本植物。目前用于护坡的主要植物材料有紫穗槐、美国地锦、荆条、沙地柏、柠条、柽柳、垂叶榕等乔木种,长春藤、藤本月季、爬墙虎、紫藤、扶芳藤等藤本植物;杜鹃等灌木种;天堂草、狗牙根、假俭、锦鸡儿、金钟、小冠花等多年生草本植物。

        公路边坡绿化需要秉承哪些基本原则?

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        公路边坡绿化桥址所在河段,河岸的凹岸逐年迎受水流冲洗,会使河岸不断地坍塌。为保护桥梁和路堤安全,须在凹岸修筑防护建筑物。此外,因设桥引起河水流向变化,冲洗河岸而危及农田和村镇时,也须在河岸修建防护建筑物。这种建筑物通常又称为护岸。

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