阿尔及利亚东西高速公路石笼网垫防护设计

Gabion Mat Protection Design for Algeria East-West Expressway

以阿尔及利亚东西高速公路山区河流改移工程为依托,采用半经验公式计算石笼网垫的满宁粗糙系数和容许切应力,根据水流切应力在直线和弯曲段的分布规律研究弯曲段加强防护的区域和长度,以切应力确定渠底和岸坡工程的网垫厚度和填充石块的平均粒径,对同类工程设计具有借鉴作用。

Relying on mountainous river diversion engineering for Algeria East-West Expressway,roughness coefficient and permissible shearing stress of gabion mat are calculated using semi-empirical formula.The area and length for strengthening protection in curved section are studied according to distribution rule of water flow shearing stress in straight and curved section.Gabion mat thickness and average grain size of filling stones for trench bottom and bank slope are determined based on shearing stress,which can be a reference for similar engineering design.