This document discusses methods for analyzing slope stability using the method of slices. It describes Taylor diagrams, the basic theory of slicing slopes, and calculating the safety factor. The ordinary and Bishop methods of slices are explained. The Bishop method is recommended as it includes interslice normal forces and satisfies moment equilibrium, though it neglects interslice shear forces. A safety factor between 1.3 to 1.5 is recommended for critical slopes, and 1.5 for cut slopes in fine-grained soils.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Geotechnical Engineering-II [Lec #3: Direct Shear Test)Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Geotechnical Engineering-II [Lec #3: Direct Shear Test)Muhammad Irfan
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Detailed content on shear strength of soils, principles of effective stresses, tests conducted to determine the shear strength of soils and its applications, dilatancy, thixotropy and sensitivity.
Introduction
Geostatic Stresses
Boussinesq’s Equation
Vertical Stresses Under A Circular Area
Vertical Stresses Under A Rectangular Area
Equation Point Load Method
Newmark’s Influence Chart
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
This presentation is all about Shear Strength of Soil and it's importance in Civil Engineering, application of shear strength, direct shear test, mohr's circle, mohr's coulomb, shear strength, triaxial shear test, unconfined compression test, vane shear test
Detailed content on shear strength of soils, principles of effective stresses, tests conducted to determine the shear strength of soils and its applications, dilatancy, thixotropy and sensitivity.
Introduction
Geostatic Stresses
Boussinesq’s Equation
Vertical Stresses Under A Circular Area
Vertical Stresses Under A Rectangular Area
Equation Point Load Method
Newmark’s Influence Chart
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.
This presentation is all about Shear Strength of Soil and it's importance in Civil Engineering, application of shear strength, direct shear test, mohr's circle, mohr's coulomb, shear strength, triaxial shear test, unconfined compression test, vane shear test
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
8. SLICED METHOD
• THIS METHOD CAN BE USED FOR SOIL IN DIFFERENT SHEARING RESISTANCE
ALONG THE FAILURE PLANE
• PROPOSED BY FELLENIUS ,BISHOP, JANBU, ETC
• ASSUMED CIRCULAR FAILURE PLANE
9. REGULATION OF SLICES
1. SLICED PERFORMED VERTICAL DIRECTION
2. THE WIDTH OF THE SLICE DOES NOT HAVE THE SAME MEASUREMENT
3. ONE SLICE MUST HAVE ONE TYPE OF SOIL IN THE FAILURE SURFACE
4. THE WIDTH OF THE SLICE MUST BE SUCH THAT THE CURVE (FAILURE PLANE)
CAN BE CONSIDERED A STRAIGHT LINE
5. THE TOTAL WEIGHT OF SOIL IN A SLICE IS THE SOIL WEDGE ITSELF, INCLUDING
WATER AND EXTERNAL LOAD
12. • FIRSTLY IT IS ASSUMED THAT THE SIDE FORCES T AND E MAY BE NEGLECTED
AND SECONDLY, THAT THE NORMAL FORCE N, MAY BE DETERMINED SIMPLY BY
RESOLVING THE WEIGHT W OF THE SLICE IN A DIRECTION NORMAL TO THE
ARC, AT THE MID POINT OF THE SLICE
• 𝑁 = 𝑊 𝑐𝑜𝑠𝛼
• WHERE IS THE ANGLE OF INCLINATION OF THE POTENTIAL FAILURE ARC TO
THE HORIZONTAL AT THE MID POINT OF THE SLICE
• THE DRIVING FORCE IS 𝑊 𝑠𝑖𝑛𝛼
14. STEP BY STEP PROCEDURE
1. DRAW CROSS-SECTION TO NATURAL SCALE
2. SELECT FAILURE SURFACE
3. DIVIDE THE FAILURE MASS INTO SOME SLICES
4. COMPUTE TOTAL WEIGHT ( WT ) OF EACH SLICE
5. COMPUTE FRICTIONAL RESISTING FORCE FOR EACH SLICE N TANΦ – UL
6. COMPUTE COHESIVE RESISTING FORCE FOR EACH SLICE CL
7. COMPUTE TANGENTIAL DRIVING FORCE (T) FOR EACH SLICE
8. SUM RESISTING AND DRIVING FORCES FOR ALL SLICES AND COMPUTE FS
15.
16.
17.
18. BISHOP METHOD
- Also known as Simplified Bishop method
- Includes interslice normal forces
- Neglects interslice shear forces
- Satisfies only moment equilibrium
23. RECOMMENDED STABILITY METHODS
• ORDINARY METHOD OF SLICES (OMS) IGNORES BOTH SHEAR AND NORMAL
INTERSLICE FORCES AND ONLY MOMENT EQUILIBRIUM
• BISHOP METHOD
- ALSO KNOWN AS SIMPLIFIED BISHOP METHOD
- INCLUDES INTERSLICE NORMAL FORCES
- NEGLECTS INTERSLICE SHEAR FORCES
- SATISFIES ONLY MOMENT EQUILIBRIUM
24. OTHERS
• SIMPLIFIED JANBU METHOD
- INCLUDES INTERSLICE NORMAL FORCES
- NEGLECTS INTERSLICE SHEAR FORCES
- SATISFIES ONLY HORIZONTAL FORCE EQUILIBRIUM
• SPENCER METHOD
- INCLUDES BOTH NORMAL AND SHEAR INTERSLICE FORCES
- CONSIDERS MOMENT EQUILIBRIUM
- MORE ACCURATE THAN OTHER METHODS
25. RECOMMENDED STABILITY METHODS
OMS IS CONSERVATIVE AND GIVES UNREALISTICALLY LOWER FS THAN BISHOP OR
OTHER REFINED METHODS
FOR PURELY COHESIVE SOILS, OMS AND BISHOP METHOD GIVE IDENTICAL RESULTS
FOR FRICTIONAL SOILS, BISHOP METHOD SHOULD BE USED AS A MINIMUM
RECOMMENDATION: USE BISHOP, SIMPLIFIED JANBU OR SPENCER
26. REMARKS ON SAFETY FACTOR
USE FS = 1.3 TO 1.5 FOR CRITICAL SLOPES SUCH AS END SLOPES UNDER
ABUTMENTS, SLOPES
• CONTAINING FOOTINGS, MAJOR RETAINING STRUCTURES
USE FS = 1.5 FOR CUT SLOPES IN FINE-GRAINED SOILS WHICH CAN LOSE
STRENGTH WITH TIME