1. A fill is placed at the ground surface over the entire site and the weight of the fill is expected to cause a surcharge pressure of 1000 lb/ft?. This surcharge pressure can cause a consolidation of the clay layer. q=1000 psf >fty GWT 5 ft Medium dense sand, 20 ft above GWT, ya=110 pcf below GWT, Ysa= 115 pcf NC clay, y= 120 pcf eo=0.8 C=0.30 50 ft Cy=0.1 ft2/day Sand (a) Calculate the maximum consolidation settlement of the clay layer caused by this uniform loading of q=1000 lb/ft? at the middle of the clay layer. (b) Determine how long (in days) it will take for a settlement of 3 inches to occur. (c) At 8 months after the fill is placed, determine the water pressure at the top of the clay layer at that time. [Note1: at any depth, the water pressure is the sum of the hydrostatic water pressure plus the remaining excess pore water pressure]

1. A fill is placed at the ground surface over the entire site and the weight of the fill is expected to cause a surcharge pressure of 1000 lb/ft?. This surcharge pressure can cause a consolidation of the clay layer. q=1000 psf >fty GWT 5 ft Medium dense sand, 20 ft above GWT, ya=110 pcf below GWT, Ysa= 115 pcf NC clay, y= 120 pcf eo=0.8 C=0.30 50 ft Cy=0.1 ft2/day Sand (a) Calculate the maximum consolidation settlement of the clay layer caused by this uniform loading of q=1000 lb/ft? at the middle of the clay layer. (b) Determine how long (in days) it will take for a settlement of 3 inches to occur. (c) At 8 months after the fill is placed, determine the water pressure at the top of the clay layer at that time. [Note1: at any depth, the water pressure is the sum of the hydrostatic water pressure plus the remaining excess pore water pressure]

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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