合肥滨湖景观河道与生态湿地防渗工程案例

一、项目概况

本项目位于合肥市滨湖新区，紧邻巢湖流域，属于城市滨水生态修复重点工程，涵盖景观河道、亲水浅滩、生态缓冲湿地、小型蓄水水系等施工板块，治理水系总长度1.6km。该区域地下水位高、土壤砂性重，传统硬质护坡防渗效果差、易漏水，不仅难以维持景观水位，还存在水土生态割裂问题。项目核心需求为长效防渗保水+生态景观兼容，既要实现零渗漏蓄水，又要保障水系生态性、景观性，满足市民亲水休闲功能，由山东兴兆新材料提供全套生态防渗材料及技术服务。

二、工程建设难点

本次景观河道施工区别于传统水利工程，核心难点集中在生态与施工适配层面：一是水系弯道多、异形亲水台阶、浅滩结构复杂，传统混凝土衬砌施工难度大、成型效果差，且极易出现开裂渗漏；二是项目定位生态景观水系，要求防渗结构可覆土绿化、适配水生植物生长，不能完全阻断水土连通；三是景观水系长期露天暴晒、常年积水浸泡，对材料抗紫外线、耐水浸泡、环保无毒性能要求严苛；四是城区施工工期紧、现场管控标准高，要求材料适配快速施工、零污染、无异味。

三、材料选型与定制方案

结合滨湖景观河道的生态属性与结构特点，兴兆采用轻量化、生态化、适配性极强的防渗配置：平整浅水河床、大面积景观水域选用1.0mm国标全新料光面HDPE土工膜，铺设平整、焊接严密、性价比高，可快速完成大面积防渗施工；弯道、台阶、湿地分区等异形复杂节点，选用200g一布一膜复合土工膜，柔性更强、贴合度更高，可完美适配各类异形结构，无施工死角。项目总计供应生态防渗材料3.2万㎡，所有产品均为环保无毒国标材质，无有害物质析出，完全符合巢湖流域生态环保治理标准。

四、现场施工要点

针对景观工程特性，施工全程兼顾防渗质量与景观效果。基面精细化找平，杜绝凸起硬物破坏膜体；柔性膜材随地形自然贴合，不破坏原有水系地形肌理；焊缝平整规整，杜绝凸起瑕疵影响后续覆土绿化；施工完成后及时覆盖素土保护层，分层铺设水草、芦苇等水生植物，构建自然生态岸线。全程采用机械化快速施工，高效适配城区施工工期要求，施工过程无扬尘、无噪音污染，符合城区环保施工规范。

五、项目落地效果

项目投入使用后，景观水系水位长期稳定，彻底解决砂质地层水体渗漏、水位骤降问题，无需频繁补水运维。防渗体系完整无渗漏、无塌陷，异形节点贴合度良好，无任何渗水隐患。覆土绿化完成后，水系生态环境全面提升，水生植物长势良好，亲水景观效果优越，完美实现“防渗保水+生态修复+景观提升”三重目标，成为合肥市滨湖水环境治理标杆示范段，为城市生态河道建设提供了优质参考案例。

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