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The site of a proposed north-south road will cut through the western side of a hill....

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Civil Engineering

The site of a proposed north-south road will cut through thewestern side of a hill. The proposed cutting is 13 m high with abatter angle of 70 degrees. The site has been drilled by a singlediamond drill hole. In the drill hole, 10 m of dolerite overlies 5m of sandstone. RQD for the dolerite is 80% and RQD for thesandstone is 50%. There was 20 cm of core loss at 5 m and 40 cm ofcore loss between 9.6 m and 10 m. Core samples were sent off forUCS measurements and came back with UCS for dolerite = 150 MPa andUCS for sandstone = 80 MPa. What further information do you need toconsider the stability of the proposed road cutting? Suggest bothgeophysical and geological techniques that you could use in yourassessment and why they would be useful.

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