排水板与HDPE土工膜组合防排水系统在车库屋顶的设计与施工
排水板与HDPE土工膜组合防排水系统在车库屋顶的设计与施工
关于排水板与HDPE土工膜组合防排水系统在北京第十四中学屋顶绿化工程的设计与施工，首先要了解材料的特点，才能发挥材料的作用。排水板是由高密度聚乙烯制成，具有排水功能，适用于大型广场绿化、车库顶板绿化等工程。有良好的隔水、隔热、强度高、柔性好、防潮性能；HDPE土工膜也被称为“高密度聚乙烯土工膜”，具有优良的耐环境应力开裂性能，抗低温、抗老化、耐腐蚀性能，以及较大的使用温度范围(-60--+60)和较长的使用寿命 (70年)，广泛使用在车库屋顶隔根层、垃圾填埋场防渗，人工湖防渗，尾矿处理等防渗工程。
北京市第十四中学屋面绿化工程在原屋面基础上,选用聚乙烯丙纶双面复合防水卷材作为普通防水层、1.5mm厚HDPE土工膜作为耐根穿刺防水层、2cm厚HDPE蓄排水板作为排水层,形成一个防渗、隔根、排水的系统，并且隔根层的HDPE土工膜本身也具有非常强的防渗性能，所以整个屋顶绿化采用了双道柔性防水加排水的设计，这样的施工效果好，并种植根浅、易生长养护的植物形成种植屋面。该屋面荷载未超标,关键节点防水阻根效果好,排水通畅,景观效果佳,被评为北京市2011年度园林绿化工程。具体技术方案可以来邮咨询：13505480586@163.com.
On the combination of drainage plate and HDPE geotechnical membrane waterproof and drainage system in the design and construction of the fourteenth middle school in Beijing roof greening projects, we must first understand the characteristics of materials, to maximize the role of material. Drainage plate is made of high density polyethylene, with drainage function, suitable for large green square, the garage roof greening engineering. Good waterproof, heat insulation, high strength, good flexibility, moisture-proof performance; HDPE geotechnical membrane has also been called the "high density polyethylene geomembrane", which has excellent resistance to environmental stress cracking resistance, low temperature resistance, aging resistance, corrosion resistance, and large temperature range (-60--+60) use life and long (70 years), widely used in the garage roof root separation layer, landfill, the artificial lake seepage, seepage engineering tailings disposal etc..
关键词：排水板 HDPE土工膜 车库屋顶绿化 隔根层
