Answered: Dry sand y = 16.5 kN/m 1.5 m…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Refer to Figure P3.3. Vane shear tests were conducted in the
clay layer. The vane (tapered) dimensions were 63.5 mm
(d) 3 127 mm (h), iB 5 iT 5 458 (see Figure 3.23). For the test at A, the torque required to cause failure was 51 N ? m.
For the clay, given: liquid limit 5 46 and plastic limit 5 21.
Estimate the undrained
cohesion of the clay for use in the
design by using
Bjerrum’s l relationship

Dry sand
y = 16.5 kN/m
1.5 m
Groundwater
table
Sand
1.5 m
Ysat = 19 kN/m3
1.5 m
•8
Clay
Yat = 16.8 kN/m3
1.5 m
* A •8
1.5 m
•9
1.5 m
10
Sand
FIGURE P3.3

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