Now, assume groundwater table is far, referring to the Figure B, calculate the dry unit weight for 2nd layer (depth below existing ground surface from 2 m till 4.5 m). Assume the specific gravity is 2.65 and unit weight of water is 10 kN/m3. Answer in kPa with two decimal place only. (Please write down value only. Don't input unit in the answer)

Now, assume groundwater table is far, referring to the Figure B, calculate the dry unit weight for 2nd layer (depth below existing ground surface from 2 m till 4.5 m). Assume the specific gravity is 2.65 and unit weight of water is 10 kN/m3. Answer in kPa with two decimal place only. (Please write down value only. Don't input unit in the answer)

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

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.

Question

Figure B: Stress diagram
Total Stress (6)
Pore Water Pressure (u)
Effective Stress (o')
26.2 kPa
26.2 kPa
-2.0 m
\71.2 kPa
25 kPa
i) ?? kPa
-4.5 m
Vii) ?? kPa
70 kPa
90.3 kPa
-9.0 m
Figure B Stress diagram
Now, assume groundwater table is far, referring to the Figure B, calculate
the dry unit weight for 2nd layer (depth below existing ground surface
from 2 m till 4.5 m). Assume the specific gravity is 2.65 and unit weight of
water is 10 kN/m3. Answer in kPa with two decimal place only. (Please
write down value only. Don't input unit in the answer)
Your answer

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