It has much more advantages in the wet seasons . the main dam is the rolled asphalt rock - fill with the concrete core in nierji project 尼尔基水利枢纽工程主坝防渗型式采用碾压式沥青混凝土心墙坝。
2.
The rolled asphalt rock - fill dam with concrete core is one of new impervious structures in the rock - fill dams . it has very high imperviousness with ability to fit the deformation and it is easy to organize the construction 碾压式沥青混凝土心墙坝是土石坝的一种新型防渗结构，具有防渗性，能好、适应变形能力强、易于施工等特点。
