Table 1: Potential for surfacing internal erosion in glacial moraine core embankment dams

1 January 2000


Table 1: Potential for surfacing internal erosion in glacial moraine core embankment dams Kenny & Lau 1 (1985, 1986)1. Internally unstable if H/F 9 DB95 regardless of internal stability. Foster & Fell (2001) continuing erosion boundary. Re-grade core soil on the 4.75mm sieve. 3. Sherard and Dunnigan (1989) no erosion boundary (soil group 2 base soils).
Max filter D15 (mm) Unstable core / unstable filter Unstable core and stable filter or stable core and unstable filter Stable core / stable filter
≥ 1.4 2 High2 Increased Neutral
>0.7, <1.4 Increased Neutral Reduced
≤0.7 3 Neutral Reduced Low



Privacy Policy
We have updated our privacy policy. In the latest update it explains what cookies are and how we use them on our site. To learn more about cookies and their benefits, please view our privacy policy. Please be aware that parts of this site will not function correctly if you disable cookies. By continuing to use this site, you consent to our use of cookies in accordance with our privacy policy unless you have disabled them.