茅坪溪土石坝沥青混凝土心墙的力学特性与施工控制

MECHANICS PROPERTY AND CONSTRUCTION CONTROL OF THE ASPHALTIC CONCRETE CORE WALL IN EMBANKMENT DAM

茅坪溪土石坝是三峡工程的重要组成部分，与三峡大坝同属１等１级永久建筑物，该坝的特色是采用了碾压式沥青混凝土心墙防渗系统。在大量的试验研究、数值计算和施工技术研究的基础上，综合分析了沥青混凝土心墙所特有的力学性质，提出了严格控制心墙的力学参数变化，从而确保工程质量的施工控制方法。

The Maopingxi embankment dam with distinctive asphaltic concrete core wall, a top-grade permanent structure in the first-class structures in accordance with the Chinese specifications, is important part of the Three Gorges Project. Based on a large number of testing study, numerical calculation and construction technology studies, the mechanics property of the asphaltic concrete core wall is studied to have relation to the compound ratio, forming method, loading velocity, temperature and soak time. Finally, the methods of construction Control for the asphaltic concrete core wall are put forward.