-4- Question 3 (a) Determine the factor of safety for the 2.5 m high vertical cut as shown in Fig. 23a using the Culmann

[answerhappygod]

4 Question 3 A Determine The Factor Of Safety For The 2 5 M High Vertical Cut As Shown In Fig 23a Using The Culmann 1 (26.03 KiB) Viewed 24 times

-4- Question 3 (a) Determine the factor of safety for the 2.5 m high vertical cut as shown in Fig. 23a using the Culmann Method. 777 y = 19 LN m2 c= 20 kPa 2.5 m 0 = 32° TYT Fig. 23a (50%) (b) In site formations work, describe briefly the following means of ground improvement methods: (1) Pre-compression (11) Vibro-compaction (111) Chemical stabilisation and grouting (iv) Soil Reinforcement (40%) (c) During a borehole drilling, the SPT hammer advancement records for a 450mm penetration in a SPT Measurement are found as follows: (1) 42 blows for the first 150 mm penetration (11) 47 blows for the second 150 mm penetration (111) 50 blows for the last 150 mm penetration Estimate the SPT (or N) value for the soil layer encountered. (10%)