California Soil Mechanics, Bearing Capacity and Slope Stabilization
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Please log into the webinar 15 – 30 minutes before start time.
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8:00 – 8:30 am PDT
8:30 am – 12:15 pm PDT
12:15 – 1:15 pm PDT
1:15 – 4:30 pm PDT
Robert G. Trazo, M.Sc., PE, GE, D.GE
Soil Investigation and Classification
Properties of soil
• Importance of recognizing soil properties
• Formation of soils
• Types of soils in California
Soil investigation on California construction sites
• Site reconnaissance
• Geology and visual observations
• Drilling and boring
• Test pits
• Establishing appropriate investigational methods
• Obtaining and reviewing geotechnical reports
Reviewing Hydraulic and Mechanical Properties of Soils
Compressibility of soil
• Saturation, hydraulic gradient, and conductivity
Drained and undrained shear strength
• Vertical and lateral earth pressure
Stress and failure in soils
Determining and Increasing Bearing Capacity
Calculating bearing capacity
Bearing capacity of shallow foundations
Bearing capacity of piers and piles
Increasing bearing capacity
• Draining and compaction
• Soil improvement
Determining and Increasing Slope Stability
Natural and engineered slopes
Reviewing basic concepts of slope stability
Understanding slope failures
Impact of surface water and groundwater
Examining slope stabilization methods
• Draining and compaction
• Soil improvement
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Non-Credit for CA Architects
7.0 AIA LU|HSW (AIA credits only available for attending live Webinar)
International Code Council
.7 CEUs (Sitework)
LA CES (LA CES credits only available for attending live Webinar)
6.5 HSW PDHs
*Continuing education not mandatory in California
Continuing Education Credit Information
This webinar is open to the public and offers a non-credit continuing education
opportunity to California architects, engineers, and landscape architects.
The American Institute of Architects Continuing Education System has approved this
course for 6.5 LU|HSW (Sponsor No. J885). Only full participation is reportable to the
The International Code Council has approved this event for .65 CEUs in the specialty area
of Sitework (Preferred Provider No. 1232).
The Landscape Architecture Continuing Education System has approved this course for
6.5 HSW PDHs. Only full participation is reportable to the LA CES.
Completion certificates will be awarded to participants who complete this event, respond
to all prompts, and earn a passing score (80%) on the quiz that follows the presentation
(multiple attempts allowed).
Robert G. Trazo
Southern California Geotechnical, Inc.
Southern California Geotechnical, Inc. (SCG) specializes in providing great service to its fantastic clients on commercial, industrial, residential, public, governmental and retail projects. The company has been structured since its founding in 1998 as a streamlined organization with hands-on involvement by the principals of the company. Because of that, SCG has been and continues to be a valued and trusted member of development design teams in Southern California. Mr. Trazo has 23 years’ experience in the geotechnical industry beginning with analyzing forensic projects associated with the 1994 Northridge Earthquake and Malibu landslides to building large residential, municipal and bridge projects in Orange County to building large commercial, industrial and retail buildings throughout Southern California. Mr. Trazo has served as a part-time professor of civil engineering at California Polytechnic University, Pomona since 2003. Mr. Trazo has also taught the American Society of Civil Engineers (ASCE) Review Class for California Professional Engineer license exam students since 2001. In addition, Mr. Trazo has served the California Board of Professional Engineers since 2005 as a geotechnical exam development team member and as a geotechnical subject matter technical expert reviewing cases involving other geotechnical engineers in California. Mr. Trazo is a devoted family man and is involved with community service projects throughout Southern California.
AIA Provider Statement:
HalfMoon Education Inc. is a registered provider of AIA-approved continuing education under Provider Number J885. All registered AIA/CES Providers must comply with the AIA Standards for Continuing Education Programs. Any questions or concerns about this provider of learning program may be sent to AIA/CES (email@example.com or (800) AIA 3837, Option 3).
This learning program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.
AIA continuing education credit has been reviewed and approved by AIA/CES. Learners must complete the entire learning program to receive continuing education credit. AIA continuing education Learning Units earned upon completion of this course will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.
Course Title: California Soil Mechanics, Bearing Capacity and Slope Stabilization
Delivery Method: Live Online
Course Description: This 6.5 hour live lecture presentation examines soil investigation and classification, hydraulic and mechanical properties of soils, determining and increasing bearing capacity, and determining and increasing slope stability.
Learning Objective 1:
Learners will be able to describe the need to need to understand the properties of soil on particular development soils and value of conducting soil investigations to determine the appropriate type and design of that foundation, which will ensure its longevity and safety.
Learning Objective 2:
Learners will be able to articulate the need to understand the hydraulic and mechanical properties of site soils so that soil compressibility and drainage can be considered for foundation design.
Learning Objective 3:
Learners will be able to calculate soil bearing capacities for shallow foundations, piers and piles, and they will be able to explain how to increase bearing capacity through draining, compaction, and soil improvement.
Learning Objective 4:
Learners will be able to differentiate the stability of natural and engineered slopes, explain why slopes fail, and describe slope stabilization methods to avoid slope failure and landslides.
LUs: 6.5 LU Type: LU|HSWs.
Prerequisites: Familiarity with site development and earthwork
Advance Preparation: None
Program Level: Intermediate
Course Expiration Date: TBD
Complaint Resolution Policy:
Complaints regarding this course can be emailed to firstname.lastname@example.org or by calling (715) 835-5900. A HalfMoon Education representative will respond within 72 hours to resolve the complaint, which will include, but not limited to, access to another CE activity at no or reduced cost or a full or partial refund. Each instance will be resolved on a case-by-case situation.