landslide management using geospatial technology (lmgt)

landslide management using geospatial technology (lmgt) landslide management using geospatial technology (lmgt)

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13.07.2015 Views

(Cont’d)No6Landslide HazardIdentifica-tionsEngineeringcharacteristics ofsoils and rocksFactors Parameter Soil Shear Strength () (kN/m 2 )‣ < 20‣ 20 – 40‣ 40 – 75‣ 75 – 150‣ 150 – 300‣ > 300 Standard penetration test (SPT) (N) Cohesive soil‣ 0 – 2‣ 2 – 4‣ 4 – 8‣ 8 – 15‣ 15 – 30‣ > 30or, Non-cohesive soil‣ 0 – 4‣ 4 – 10‣ 10 – 30‣ 30 – 50‣ > 50RatingValue5.04.03.02.01.00.55.04.03.02.01.00.55.04.03.02.01.0

(Cont’d)No6LandslideHazardIdentifica-tionsEngineeringcharacteristicsof soils androcksFactors Parameter Rock Shear Stress () (kN/m 2 )‣ < 25‣ 25 – 50‣ 50 – 100‣ 100 – 250‣ > 250 Rock quality designation (RQD) (%)‣ < 25‣ 25 – 50‣ 50 – 75‣ 75 – 90‣ 90 – 100RatingValue5.04.03.02.01.05.04.03.02.01.0

(Cont’d)No6Landslide HazardIdentifica-tionsEngineeringcharacteristics ofsoils and rocksFactors Parameter Soil Shear Strength () (kN/m 2 )‣ < 20‣ 20 – 40‣ 40 – 75‣ 75 – 150‣ 150 – 300‣ > 300 Standard penetration test (SPT) (N) Cohesive soil‣ 0 – 2‣ 2 – 4‣ 4 – 8‣ 8 – 15‣ 15 – 30‣ > 30or, Non-cohesive soil‣ 0 – 4‣ 4 – 10‣ 10 – 30‣ 30 – 50‣ > 50RatingValue5.04.03.02.01.00.55.04.03.02.01.00.55.04.03.02.01.0

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