尼尔基大坝碾压式沥青混凝土心墙施工技术

Construction technique of roller compaction asphalt concrete core wall for the Ni'erji Dam

尼尔基水利枢纽大坝为我国高寒地区的第一座大型沥青混凝土心墙坝。碾压式沥青混凝土配合比及施工参数经试验确定,采用国产拌和设备拌和、自卸车运输、装载机上料、瑞士产摊铺机摊铺、德国产振动碾碾压。通过现场无损检测和现场钻孔取样检测等检验心墙质量,结果完全满足设计要求。施工实践证明,在高寒地区修建沥青混凝土心墙坝是可行的。

The Ni'erji Water Control Project is one of the key national projects during the Tenth Five-Year Plan period. The dam for the Project is a gravel dam with roller compaction asphalt concrete core wall. The construction techniques, methods, experience and suggestions on the roller compaction asphalt concrete core wall for the Ni′erji project can be used for reference in those similar projects.