港珠澳大桥珠海口岸地下防水工程施工技术

Underground Waterproofing Construction Technology for Zhuhai Port of Hongkong-Zhuhai-Macao Bridge

介绍了港珠澳大桥珠海口岸地下工程采用聚乙烯丙纶复合防水卷材及其专用聚合物水泥粘结料作为主要防水材料、细部节点根据形状的不同设计制作专用配套节点型材的防水设计,详细阐述了桩头、阴阳角、变形缝、后浇带等节点部位的防水处理措施,并重点介绍了专用配套节点型材的施工工艺。

PE-PP composite waterproofing membrane and special polymer cement bonding material for this kind of membrane are adopted as main waterproofing materials for the underground work of Zhuhai Port of Hongkong-Zhuhai-Macao Bridge. For the details, special formed materials are designed for the waterproofing. The article elaborates on the waterproofing treatment measures for pile head, internal and external corners, deformation joint, post-cast strip and other details. It gives an emphasis on the construction technology of the formed materials for details.