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Slide Topic 5

The document discusses shear strength of soils. It aims to help students understand shear strength parameters, Mohr-Coulomb failure criteria, and methods to determine shear strength through testing. Key tests mentioned to find shear strength parameters (c and φ) include the shear box test, triaxial test, and vane shear test. The Mohr-Coulomb model relates shear strength to normal stress on the failure plane using the cohesion and friction angle.

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Nezrin
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50 views48 pages

Slide Topic 5

The document discusses shear strength of soils. It aims to help students understand shear strength parameters, Mohr-Coulomb failure criteria, and methods to determine shear strength through testing. Key tests mentioned to find shear strength parameters (c and φ) include the shear box test, triaxial test, and vane shear test. The Mohr-Coulomb model relates shear strength to normal stress on the failure plane using the cohesion and friction angle.

Uploaded by

Nezrin
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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TOPIC 3

SHEAR STRENGTH

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Course Learning Outcome (CLO)

Student should be able to:

1. Understand shear strength of soil


 State the parameter of shear strength of soil
 Define the shear strength of soil and its usage

2. Understand Mohr-Coulomb criteria for failure of soil


 Explain Coulomb and Mohr method
 State the criteria for failure of granular soil, cohesion soil
and granular-cohesion soil
 Relate shear failure plane and the parameter of shear
strength (c & ϕ) by drawing the Mohr circle

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Course Learning Outcome (CLO)

Student should be able to:

3. Apply the parameter of shear strength (c & ϕ)


 Use the testing to identify parameter of shear strength
i. Shear Box Test
ii. Unconfined Compression Test
iii. Tri-axial Test
iv. Vane Shear Test

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


3.1
Understand
Shear Strength
of Soil

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Usage of Shear Strength

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
3.2
Understand
Mohr-Coulomb
Criteria for
Failure
of Soil

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
3.3
Apply the
parameter of
shear strength
(c&ϕ)

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


3.3.1
Shear Box
(Direst Shear
Test)

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
 SHEAR BOX TEST
 VIDEO
 (Refer Video File)
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
3.3.2
Triaxial Test

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
TRIAXIAL TEST
VIDEO 1
(Refer Video File)
TRIAXIAL TEST
VIDEO 2
(Refer Video File)
Types of Triaxial Test
1. Unconsolidate & Undrained (UU)
2. Consolidate & Undrained (CU)
3. Consolidate & Drained (CD)

Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015


Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015
Ronnie Patrick Masida/Lecturer/JKA/POLIKK/JUNE 2015

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