Flexible & Rigid Retaining Wall Systems Design Workshop (1.2 CEUs)

Venue: Webinar/Online

Location: Webinar/Online, Canada

Event Date/Time: May 28, 2012 End Date/Time: May 28, 2012
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Description

Objective:

To present an in-depth review of design, application and construction of flexible and rigid retaining walls systems.

Description:

The goal of this course is to provide participants with state-of-the-practice design tools and construction techniques to expand implementation of safe and cost-effective earth retention technologies. This course addresses the selection, design, construction, and performance of earth retaining structures used for support of earth fills and excavations or cut slopes. The instructor covers factors that affect wall selection. Class discussions will include design procedures and case histories, demonstrating the selection, design, and performance of various earth retaining structures. Detailed information on subsurface investigation, soil and rock property design, parameter selection, lateral earth pressures for wall system design, and load and resistance factor design (LRFD) for retaining walls is provided.

After Attending This Workshop You Will Be Able To:

Recognize potential applications for retention structures used in civil engineering practice

Select the most technically appropriate and cost-effective type of retaining wall for the application, based on a thorough knowledge of available systems

Examine and select appropriate material properties, soil design parameters, and earth pressure diagrams

Prepare conceptual and basic (i.e., for simple geometry) designs using appropriate design methods, factors of safety, earth pressure diagrams, and field verification methods, and be able to appraise contractor-submitted designs

Demonstrate a clear understanding of retaining wall construction and maintenance design rigid and flexible retaining walls systems

Analyze retaining wall failure and understand reasons behind it

Design simple reinforced slopes using geosynthetics

Have a better understanding of retaining structures in terms of design, applications, development limitations and construction

Be able to compare different retaining systems and make an informed decision based on the technical and economic feasibility of each system

Demonstrate a clear understanding of retaining wall construction and maintenance design rigid and flexible retaining walls systems

Analyze retaining wall failure and understand reasons behind it

Design simple reinforced slopes using geosynthetics

Have a better understanding of retaining structures in terms of design, applications, development limitations and construction

Be able to compare different retaining systems and make an informed decision based on the technical and economic feasibility of each system

Target Audience:

Consultants; contractors; bridge/structures, geotechnical, and roadway design engineers; engineering geologists; and consultant review specialists; civil engineers; designers; construction managers; municipal and transportation engineers; owners; management, specification, and contracting specialists; construction engineers involved in design and contracting aspects of retaining structures; other technical personnel interested in the technology of building and analyzing existing retaining wall systems.

Special Features:

You will receive a free copy of the following Design software: SRWALL latest edition for Segmental Retaining Wall Design, and a hard copy of the Design Manual for Segmental Retaining Walls, provided by National Concrete Masonry Association, worth more than $240. An in class demo session will be conducted for this specific software.

Materials Required:

Standard engineering calculator with scientific functions

Laptop for software training

Program Outline (12 PDH)

Day I:

Engineering properties of soils, and soil classification

Compaction

Stress analysis

Consolidation

Shear strength of soils

Soil behavior, fine grained soil versus coarse grained soils

The effective stress concept

Lateral Earth Pressure

Active and passive earth pressures

Design theories for lateral earth pressures

Special types of lateral earth pressures: lateral earth pressures due to earthquakes, pressures in silos, elevators and bunkers- frost action load

Gravity and cantilever retaining wall design

Application of Lateral earth pressure theories to design- stability checks- possibilities of retaining wall failures

Structural design of cantilever retaining structures

Supported and unsupported Excavations

Excavation in rock, granular soil, and clay

Short and long term stabilities

Cantilevered unbraced wall, anchored walls, strutted walls

Multiple tie-backs and load distribution

Sheet Pile Structures

Cantilever sheet pile walls, general - cantilever sheet piling

Penetrating sand and clay Special cases - anchored sheet piles, design methods for sheet piles

Structural Design Example for Cantilever Retaining Wall Based On the Canadian Bridge Design Code

Day II:

Mechanically Stabilized Earth

Retaining Walls

Soil reinforcement

Considerations in soil reinforcement

Metal strips

Nonbiodegradable fabrics

Geogrids

General design considerations

Retaining walls with metallic strip reinforcement

Step by step design procedure using metallic strip reinforcement

Retaining walls with geotextile reinforcement

Retaining walls with geogrid reinforcement

Applications of reinforced earth; false bridge abutments and true bridge abutments

Workshop:

Participants will work on the design of the retaining wall under instructor guidance

Slope Stability Analyses

General Approach & Some Concepts Used in Stability Analysis

Limit Equilibrium Method

Factor of Safety

Modes of Failure

Total vs. Effective Stress Analysis

Reinforced slopes

Workshop using SRWall software

Retaining Structures In The Canadian Codes Of Design

Canadian Foundation Engineering Manual (CFEM)

Canadian Highway Bridge Design Code (CHBDC)

Limit state design for retaining structures

Retaining Wall Rehabilitation

Permanent soil nail retaining wall

Rehabilitation of concrete cantilever retaining wall with soil anchors

Instructor:

Dr. Gamal Abdelaziz, P.Eng, MSc. has a Ph.D. in Geotechnical Engineering from Concordia University, Montreal, Canada.

Currently he is a senior geotechnical engineer and adjunct professor at Ryerson university, Toronto, Ontario. He has over 22 years of experience in geotechnical and structural engineering, foundation design, teaching, research and consulting in Canada and overseas.

Dr. Abdelaziz is a former adjunct professor at University of Western Ontario, London, Ontario, Canada , visiting professor at Ryerson University, Toronto, Canada and part time professor at Seneca College, Toronto, Canada.

Dr. Abdelaziz is specialized in numerical modeling for solving sophisticated geotechnical engineering problems with respect to pile foundation and the linear and nonlinear analysis of soil-structure interaction. He designed charts to predict pressures acting on tunnels, and developed analytical model for pile bearing capacity prediction.

Dr. Abdelaziz authored a number of technical papers and delivered numerous internal and external workshops on various geotechnical and Municipal engineering topics. Dr. Abdelaziz has been involved in a number of projects in Canada and overseas, such as tunneling, silos, buildings, retaining structures, siphons, irrigation networks and many other civil engineering projects in terms of design and construction.

Dr. Abdelaziz is a member in different professional societies such as APEGGA, PEO, CGS, CDA, TAC and ABPA. He is also a reviewer for the Canadian Geotechnical Journal.

Venue