determine the following A sample of soil has the following grain-sizecharacteristics:* SOIL CLASSIFICATION100Percent Passing• TRIANGULAR CLASSIFICATION CHART (by USDA)USDA= US. Department of AgricultureSize (mm)102.000100900.0757420Procedure:0.056080ldentfy % of soll components% gravel =% sand% sılt% clay0.0053230100%% Passingz.coomm% Passing% Passing o.002mm700.00215.Clay% Passing200omm% Passing o.osomm –% Passing oc02mmPlot the % sand, % sılt, and %clay on therrespective aves on the triangular dhart byprojecting lines peapendicular to the axes.%3D400-050mmDetermine the following:1. Percentage of siltClassification of the soil using the Triangular6050O%.2.50SiltyclaySàndyclayClassification Chart.6040Silty clayloamClay loàmSoil7030 -Sandy clayloamThe pornt of intersection of these lines is takenas the dpproptiate soll classification.8020LoàmSilty lóam90Notes:10LoamySandy loamsol componentSandSiltparticle sze (mm)sand100gravelsand>2.000mm10090807060504030102.000 mm – 0.050mmPercentage of sandsilt0.050mm – 0.002mmclay<0.002 mmercentage of silt20Percentage of clay

Answered: Image /qna-images/answer/c5bbd956-0796-4721-969d-bfba26be4e4f.jpg

100 Percent Passing 10 100 90 74 20 60 80 32 70- 15 Clay 40 60 - 50 he soil using the Triangular 50 Silty clay Sàndy clay 60 40 Silty clay loam Clay loàm Soil 30 Sandy clay loam 20 Loàm Silty loam 10 Percenta Percentage of clay

100 Percent Passing 10 100 90 74 20 60 80 32 70- 15 Clay 40 60 - 50 he soil using the Triangular 50 Silty clay Sàndy clay 60 40 Silty clay loam Clay loàm Soil 30 Sandy clay loam 20 Loàm Silty loam 10 Percenta Percentage of clay

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

determine the following

A sample of soil has the following grain-size
characteristics:
* SOIL CLASSIFICATION
100
Percent Passing
• TRIANGULAR CLASSIFICATION CHART (by USDA)
USDA= US. Department of Agriculture
Size (mm)
10
2.000
100
90
0.075
74
20
Procedure:
0.05
60
80
ldentfy % of soll components
% gravel =
% sand
% sılt
% clay
0.005
32
30
100%
% Passingz.coomm
% Passing
% Passing o.002mm
70
0.002
15.
Clay
% Passing200omm
% Passing o.osomm –
% Passing oc02mm
Plot the % sand, % sılt, and %clay on ther
respective aves on the triangular dhart by
projecting lines peapendicular to the axes.
%3D
40
0-050mm
Determine the following:
1. Percentage of silt
Classification of the soil using the Triangular
60
50
O%.
2.
50
Silty
clay
Sàndy
clay
Classification Chart.
60
40
Silty clay
loam
Clay loàm
Soil
70
30 -
Sandy clay
loam
The pornt of intersection of these lines is taken
as the dpproptiate soll classification.
80
20
Loàm
Silty lóam
90
Notes:
10
Loamy
Sandy loam
sol component
Sand
Silt
particle sze (mm)
sand
100
gravel
sand
>2.000mm
100
90
80
70
60
50
40
30
10
2.000 mm – 0.050mm
Percentage of sand
silt
0.050mm – 0.002mm
clay
<0.002 mm
ercentage of silt
20
Percentage of clay

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