a. How high will the water rise in the piezometer immediately after the application of the surface load of 3 ksf? b. What is the degree of consolidation from the 3 ksf at point A, when h=15 ft.? c. Find h when the degree of consolidation at A is 60%. P= 3ksf Sand W.T. Sand 15 ft 20 ft Clay 4 ft 10 ft A Rock

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Geotechnical problem

**Problem 12:**

a. How high will the water rise in the piezometer immediately after the application of the surface load of 3 ksf?

b. What is the degree of consolidation from the 3 ksf at point A, when \( h = 15 \, \text{ft}? \)

c. Find \( h \) when the degree of consolidation at A is 60%.

**Diagram Explanation:**

- The diagram shows a cross-section composed of different soil layers above a rock base.
- At the top, there is a sand layer with a total height of 20 ft. The water table (W.T.) is located within this sand layer.
- Below the sand layer is a clay layer that is 10 ft thick.
- The very bottom is a rock layer.
- Point A is located 4 ft into the clay layer from the bottom.
- The surface is subjected to a pressure \( P = 3 \, \text{ksf} \).
- A piezometer is installed at the side, measuring the height (\( h \)) from a reference point to the observed water level.
Transcribed Image Text:**Problem 12:** a. How high will the water rise in the piezometer immediately after the application of the surface load of 3 ksf? b. What is the degree of consolidation from the 3 ksf at point A, when \( h = 15 \, \text{ft}? \) c. Find \( h \) when the degree of consolidation at A is 60%. **Diagram Explanation:** - The diagram shows a cross-section composed of different soil layers above a rock base. - At the top, there is a sand layer with a total height of 20 ft. The water table (W.T.) is located within this sand layer. - Below the sand layer is a clay layer that is 10 ft thick. - The very bottom is a rock layer. - Point A is located 4 ft into the clay layer from the bottom. - The surface is subjected to a pressure \( P = 3 \, \text{ksf} \). - A piezometer is installed at the side, measuring the height (\( h \)) from a reference point to the observed water level.
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