The utility model provides an ecological drainage ditch, including a drainage ditch; the bottom of the drainage ditch is paved with a plain earth tamping layer, and a seepage pipe is laid in the plain earth tamping layer; the pipe wall of the seepage pipe is wrapped with a geomembrane, and the end of the seepage pipe is sealed with a sealing plug; and the inner part of the drain ditch is sequentially returned from bottom to top; The pebble layer, water absorbing layer and topsoil layer are filled with grass seeds in the top soil layer. The inner part of the drainage ditch of the utility model is filled with fillings, and when the rainwater enters, the flow speed will be slowed down, the suspended load in the flowing water will be reduced, and then the amount of soil brought out with the flowing water will be reduced, thus playing a role of water purification; the ecological drainage ditch is provided with a water absorbing layer and a seepage pipe, after the rainwater enters the water absorbing layer, most of the rainwater will be filled into the water absorbing layer until the water is saturated Seepage pipes and other excess rainwater are discharged from the pebble layer, so the drainage ditch has certain functions of water storage, seepage and drainage; the drainage ditch is equipped with surface soil layer, which is mixed with grass seeds. The grass seeds can play a greening role on the surface of the drainage ditch after germination and improve the rate of regional greening.
【技术实现步骤摘要】
一种生态排水沟
本技术涉及一种生态排水沟,属于水土保持
技术介绍
2013年12月,习近平总书记在中央城镇化工作会议上提出了“海绵城市”的概念,随后国务院办公厅印发了《关于推进海绵城市建设的指导意见》,建设自然积存、自然渗透和自然净化的海绵城市已是当前城镇建设的大势所趋。海绵城市的核心是充分发挥绿地、道路等设施对于雨水的吸纳和蓄渗,使城市像海绵一样,在适应环境变化等方面有良好的“弹性”,降水多时能够吸水蓄水渗水净水,而当水资源紧缺时可将储存的水资源释放并加以利用。排水沟作为重要的水土保持措施,在生产建设项目中被广泛使用,现状排水沟类型虽多,但建设的基本目的是排出地表集水或将原有水系改线,功能较为单一,且主要以纯工程措施为主,这类排水沟保土能力较弱,土壤极易随雨水进入排水系统,堵塞排水沟或市政管网。此外,现状排水沟多无蓄水功能,雨天将雨水快速排出,干旱需浇灌时多采用喷灌、滴灌、洒水车洒水等措施,增加植被养护成本。随着城镇化速度的加快,人民群众对生态建设的要求越来越高,海绵城市的雨洪管理理念也逐步深入人心,仅具有单一排水功能的排水沟已不符合公众意愿及海绵城市 ...
【技术保护点】
1.一种生态排水沟,包括排水沟(5),其特征在于:所述排水沟(5)的底部铺设素土夯实层(6),在素土夯实层(6)内敷设有渗水管(4);所述渗水管(4)的管壁上包裹有土工膜(7),在渗水管(4)的末端设有封闭塞;所述排水沟(5)的内部由下到上依次回填有卵石层(3)、吸水层(2)、表土层(1)。
【技术特征摘要】
1.一种生态排水沟,包括排水沟(5),其特征在于:所述排水沟(5)的底部铺设素土夯实层(6),在素土夯实层(6)内敷设有渗水管(4);所述渗水管(4)的管壁上包裹有土工膜(7),在渗水管(4)的末端设有封闭塞;所述排水沟(5)的内部由下到上依次回填有卵石层(3)、吸水层(2)、表土层(1)。2.如权利要求1所述的生态排水沟,其特征在于:所述排水沟(5)的底部和内壁均铺设有土工膜(7)。3.如权利要求1所述的生态排水...
【专利技术属性】
技术研发人员:陈凡,孙荣,魏浪,张习传,赵俊,张宇,唐达,
申请(专利权)人:中国电建集团贵阳勘测设计研究院有限公司,
类型:新型
国别省市:贵州,52
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