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Table 1 Dam material properties used for hydrogeological and slope stability modelling

From: The Kambarata 2 blast-fill dam, Kyrgyz Republic:blast event, geophysical monitoring and dam structure modelling

Material Hydraulic conductivity coeff. Kf initial (m/s) Hydraulic conductivity coeff. Kf calibrated (m/s) Cohesion C (kN/m2) Internal Friction angle Ф (°) Specific weight γ (kN/m3)
1: Blast-fill 4 10−3 3 10−5 200 38 20
2: Fill 3 10−3 3 10−4 20 30 20
3: Gravel 8 10−4 8 10−4 50 40 22
4: Gravel-sand 8 10−4 1 10−6 50 40 22
5: Loam-Tarmac 1 10−5 1 10−5 30 28 20
6: Clay layer 1 10−8 1 10−8 30 28 20
7-8: Bentonite grouts 1 10−10 1 10−10 30 28 20
9: Concrete screen 1 10−10 1 10−10 300 40 24
10: Alluvium 1 10−3 8 10−5 30 28 20
11: Bedrock 4 10−3 1 10−9 300 40 24
  1. Note: Bentonite grouts 8 were not modelled due to missing detailed data. Above values are assumed according to data known for bentonite grouts ‘7’.