Answered: hould be the height of the water, h, in…

hould be the height of the water, h, in the cut so that the stability of the saturated clay is not lost? H = 5 m 7m 2 m J Saturated clay Sand Ysat 19 kN/m³ 4.5 m Ysat = 18 kN/m³

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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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

Q-3: A cut is made in a stiff, saturated clay that is underlain by a layer of sand (following figure). What
should be the height of the water, h, in the cut so that the stability of the saturated clay is not lost?
H = 5 m
7m
2 m
↓
Saturated clay
Sand
Ysat 19 kN/m³
4.5 m
Ysat = 18 kN/m³

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A layer of stiff saturated clay is underlain by a layer of sand (Figure 9.5). The sand is under artesian pressure. Calculate the maximum depth of cut H in meters that can be made in the clay. H1=8.1m, H2=3.56m, ysat(????)=18.9 kn/m3
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Using the value of b that prevails in part (a), determine b.1 the intersection of the resultant with the base b.2 the maximum and minimum pressure intensity at the base.
Y=15kN/m²³ Y=12.5 kN/m³ 0 p = 150 kPa e₁ = 0.95 KON.C.=0.57 m = 0.4 Y = 27.5 kN/m³ sand 9m Clay [ Bedrock * ↑ 3m ↓ 18m 5m ↓↓↓ A) What is the total vertical stress, o (in kPa) at the mid point of the clay layer? B) What is the pore water pressure, u linkPa) at the midpoint of the clay layer? c) What is the effective vertical Stress, o'v (in kPa) at the midpoint of the clay layer D) What is the over consolidated Ratio (OCR) at the midpoint of the clay layer? E) What is the total horizontal Stress (inkPa) at the midpoint of the clay layer?