This document discusses different methods for classifying soils, including particle size classification, textural classification, Highway Research Board (HRB) classification, Unified Soil Classification System (USCS), and Indian Standard Classification System (ISCS). The key points are:
1) Soils can be classified based on their particle size, texture, engineering properties for pavement or other uses, plasticity characteristics, and percentage of sand, silt and clay.
2) Classification systems group soils with similar properties together to describe and understand their engineering behavior.
3) The ISCS system is based on the USCS but further subdivides fine-grained soils into low, intermediate and high plasticity groups based on
This presentation covers the topic of particle size classification, dry sieve analysis, wet sieve analysis, sedimentation analysis, stokes law, methods of sedimentation analysis, Indian Standard Soil classification system.
This presentation covers the topic of particle size classification, dry sieve analysis, wet sieve analysis, sedimentation analysis, stokes law, methods of sedimentation analysis, Indian Standard Soil classification system.
About Subsurface investigation, Depth of foundation, Significant depth, Types of investigation, Steps involved, Methods of boring, Types of samples and samplers, Core recovery and RQD.
This ppt is more useful for Civil Engineering students.
I have prepared this ppt during my college days as a part of semester evaluation . Hope this will help to current civil students for their ppt presentations and in many more activities as a part of their semester assessments.
I have prepared this ppt as per the syllabus concerned in the particular topic of the subject, so one can directly use it just by editing their names.
Know the necessity of ground improvement
Understand the various ground improvement techniques available
Select design suitable ground improvement technique for existing soil conditions in the field
It includes the definition, properties, classification of groundwater with appropriate examples and figures in details. It also deals about the formation of groundwater. The properties of aquifers (all of 7) are described here in details with figures and mathematical terms.
About Subsurface investigation, Depth of foundation, Significant depth, Types of investigation, Steps involved, Methods of boring, Types of samples and samplers, Core recovery and RQD.
This ppt is more useful for Civil Engineering students.
I have prepared this ppt during my college days as a part of semester evaluation . Hope this will help to current civil students for their ppt presentations and in many more activities as a part of their semester assessments.
I have prepared this ppt as per the syllabus concerned in the particular topic of the subject, so one can directly use it just by editing their names.
Know the necessity of ground improvement
Understand the various ground improvement techniques available
Select design suitable ground improvement technique for existing soil conditions in the field
It includes the definition, properties, classification of groundwater with appropriate examples and figures in details. It also deals about the formation of groundwater. The properties of aquifers (all of 7) are described here in details with figures and mathematical terms.
SOIL TEXTURE
SIZE OF THE PARTICLES
HOW THESE PARTICLES CAN BE SEPARATED
TEXTURAL GROUPS
TEXTURAL CLASSES OF SOILS
PROPERTIES
WHY DIFFERENT SOIL TEXTURES HAVE THE PROPERTIES THEY DO ?
ROLE OF SOIL TEXTURE
A soil is composed primarily of minerals which are produced from parent material that is weathered or broken into small pieces. Like the classification systems for plants and animals, the soil classification system contains several levels of details, from the most general to the most specific types. The most general level of classification system is the soil order, of which there are 12 major types. This module explains these classes.
Mainly this presentation covers about how to understand and analyse soil as highway sub-grade material..
discussed about the basic properties of soil, classification of soils, tests to conduct on soil and how soil can be selected as highway material..
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Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
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Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
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When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
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Immunizing Image Classifiers Against Localized Adversary Attacks
Classification of soil
1. CLASSIFICATION OF SOILS
CREATED BY :-
ALAY MEHTA 141080106011
SHIVANI PATEL 141080106021
KAVIN RAVAL 141080106026
KUNTAL SONI 141080106028
by
PranameshChakraborty
GEOTECHNICS AND APPLIED GEOLOGY
[G.T.A.G.]
3. Purpose
Arrange various types of soils into groups
according to their engineering or various
other characteristics.
Soil possessing similar characteristics can
be placed in the same group.
3
4. CLASSIFICATION OF SOIL
1. Particle Size Classification
2. Textural Classification
3. Highway Research Board (HRB) Classification
4. Unified Soil Classification System (USCS)
5. Indian Standard Classification System (ISCS)
6. Soils arranged according to grain sizes.
Terms such as gravel, sand, silt and clay are used
to indicate grain sizes.
These terms are used only as designation of
particle sizes.
They do not signify naturally occurring soil types.
Naturally occurring soil are mixture of particles of
different sizes.
Introduction
6
9. Soil classification of composite soils exclusively
based on Particle Size Distribution.
Most popular is the Triangular Classification of
U.S. Public Roads Administration.
Classification based on % of sand, silt and clay
size.
More suitable for describing coarse grained soil.
Clay soil properties are less dependent on particle
size distribution.
Introduction
9
12. Based on both particle-size composition as well
as plasticity characteristics.
Mostly used for pavement construction.
7 primary groups (A-1, A-2,…., A-7).
A-1 subdivided into 2 subgroups.
A-2 subdivided into 4 subgroups.
Introduction
13. Used to describe performance of soil when used for
pavement construction.
Not used to place a soil in a particular group.
It means rating the value of soil as a subgrade material
within its own group.
Higher the value of GI, poorer is the quality of material.
Group Index (GI)
14. Group Index of a soil depends on:
1. Amount of material passing 75 micron IS sieve.
2. Liquid Limit.
3. Plastic Limit.
GROUP INDEX (GI) DETERMINATION
15. Classification Group Symbols
Main Soil
Type
Prefix Subgroup Suffix
Classification
Group symbols
Gravel G
Well-graded
Poorly-graded
Silty
Clayey
W
P
M
C
GW
GP
GM
GC
Sand S
Well-graded
Poorly-graded
Silty
Clayey
W
P
M
C
SW
SP
SM
SC
Silt M
LL < 50%
LL > 50%
L
H
ML
MH
Clay C
LL < 50%
LL > 50%
L
H
CL
CH
Organic O
LL < 50%
LL > 50%
L
H
OL
OH
Peat Pt Pt
16. Group Symbols and Group Names
Group Symbol Typical Name
GW Well-graded gravels.
GP Poorly-graded gravels.
GM Silty gravels.
GC Clayey gravels
SW Well-graded sands.
SP Poorly-graded sands.
SM Silty sands.
SC Clayey sands.
17. Group Symbol Typical Name
CL Inorganic clays of low plasticity.
ML Inorganic silts with slight plasticity.
OL Organic soil of low plasticity.
CH Inorganic clays of high plasticity.
MH Inorganic silts with high plasticity.
OH Organic soil of high plasticity.
Pt Peat.
Group Symbols and Group Names
19. Introduction
Based on USCS system
Modifications are:
Fine grained soils subdivided into 3 groups
(low, intermediate and high plasticity) as against
two groups(low and high) in USCS.
wL <35=L, 35<wL <5o=I, wL >50=H
Thus, soil classified into 18 groups as against
15 in USCS.
19
20. Classification Group Symbols
Main Soil
Type
Prefix Subgroup Suffix
Classification
Group symbols
Gravel G
Well-graded
Poorly-graded
Silty
Clayey
W
P
M
C
GW
GP
GM
GC
Sand S
Well-graded
Poorly-graded
Silty
Clayey
W
P
M
C
SW
SP
SM
SC
Silt M
LL < 35%
35<LL<>50
LL > 50%
L
I
H
ML
MI
MH
Clay C
LL < 35%
35<LL<>50
LL > 50%
L
I
H
CL
CI
CH
Organic O
LL < 35%
35<LL<>50
LL > 50%
L
I
H
OL
OI
OH
Peat Pt Pt 20
21. Plasticity Chart
High Plasticity use H - wL >50
Intermediate Plasticity use I – 35< wL >50
Low Plasticity use L - wL <35
Below A-line, use M (Silt) or
O (Organic)
Above A-line, use C - Clay