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1 概述沥青砼由于具有极好的防渗性能(渗透系数可达10~(-7)～10~(-8)cm/s)和较好的塑性和柔性,能很好地适应水工建筑物的不均匀沉陷和变形,因而被广泛应用于各种水工建筑物中作为防渗体。我国采用沥青砼修筑土石坝的防渗墙是从70年代初开始的,起步虽较晚,但近20多年来发展很快,特别是1985年大连碧流河水库采用半机械化施工方法建成了国内(除香港外)第一座碾压式沥青砼心墙土石坝(最大坝高53.5m),对我国碾压式沥青砼心墙筑坝技术的发展起到了推动作用。
1 Overview Asphalt concrete with excellent impermeability (permeability coefficient of up to 10 ~ (-7) ~ 10 ~ (-8) cm / s) and good plasticity and flexibility, can be well adapted to hydraulic construction Uneven subsidence and deformation of objects, which is widely used in various hydraulic structures as anti-seepage body. China’s use of asphalt concrete earth dam construction of impervious wall is from the early 70s, although the start is late, but the rapid development of nearly 20 years, especially in 1985, Dalian Biliuhe reservoir using semi-mechanized construction methods built domestic (Except Hong Kong) the first roller compacted asphalt concrete core earth dam (the maximum dam height 53.5m), China’s roller compacted asphalt concrete core wall dam technology has played a catalytic role.