杭州奥体博览中心种植屋面关键技术探讨

Discussion on Key Technology for Planted Roof of Hangzhou Olympic Sports Center

杭州奥体博览中心屋面为大跨度单体钢混结构,坡度为2%,设计为屋顶花园,对防水阻根、排蓄水和浇灌养护都提出了较高的要求。该种植屋面工程耐根穿刺层选用双重阻根技术的铜复合胎基改性沥青耐根穿刺防水卷材;排蓄水层选用陶粒,集排水、蓄水功能于一体;浇灌采用地埋式仿生精确灌溉水管,实现了水肥的高效利用。本文介绍了防水阻根、排蓄水和浇灌三大关键技术在种植屋面工程中的应用。

The roof of Hangzhou Olympic Sports Center is large span single steel concrete structure and the slope is 2%. It is designed as planted roof and puts forward higher requirements to waterproofing and root resistance, drainage and water storage, irrigation and maintenance. Double root resistant copper reinforced modified asphalt waterproofing membrane is used as root resistant layer, ceramsite is selected as drainage and water storage layer, buried bionic precision irrigation pipe is applied as irrigation layer which can achieve high efficient use of water and fertilizer. This article introduces application of three key technologies such as waterproofing and root resistance, drainage and water storage, irrigation in planted roof project.