沥青混凝土面板在大坝加固工程中的应用

The Application of Pitch Concrete Panel in Reinforcement Project of Dam

针对罗湾水电站大坝运行过程中存在的裂缝张开及渗漏析钙问题,采用沥青混凝土面板作防渗处理,一期工程施工完成后对坝体渗流量及扬压力的多年运行监测数据分析研究表明,该沥青混凝土防渗面板对减少坝体渗水有着积极的意义,可有效防止坝体裂缝张开及渗漏析钙,提高坝体运行的安全性。本文详细介绍了罗湾大坝沥青混凝土防渗面板的设计特点,重点阐述了沥青混凝土施工工艺及技术要求。

As for the existing crack stretch and seepage analysis calcium in the process of dam operation of Luo wan hydro station, we adopt pitch concrete panel to do anti-seepage treatment, Many years of operation monitoring data analysis research of dam body seepage quantity and raised pressure after completion of phase 1 construction project indicates that the pitch concrete anti-seep- age panel is good for reducing creep age of dam body. It can prevent crack stretch and seepage analysis calcium of dam body effectively and improve the safety of dam body operation. The paper introduces design characteristics of Luo wan main dam pitch concrete anti-seepage panel in detail and describes construction process and technical requirements of pitch concrete.