Mechanical Stabilized Earth (MSE) Wall Performance (Earns 1.5 PDH)

Monthly Technical Presentation and Dinner Meeting
Tuesday, December 18, 2012

Topic: Mechanical Stabilized Earth (MSE) Wall Performance (Earns 1.5 PDH)

Date: Tuesday, December 18, 2012

Location: Radisson Valley Forge Hotel and Conference Center
1160 First Avenue
King of Prussia, PA 19406

Cost: members $45; non-members $50; students $15

The occurrence of field failures of MSE walls is far too common. The Geosynthetics Institute has investigated many such failures which are subdivided into serviceability and collapses. The lecture will discuss the causes of poor performance, such as:
  • silt and/or clay backfill
  • poor or no CQA inspection
  • global stability issues
  • internal and external stability issues
This lecture will also describe a major effort of quantifying the seepage pressure under a variety of practical situation of MSE walls. To accomplish this, a finite difference computer code was developed to simulate mitigation or elimination of seepage pressure in poor draining soils. The drainage systems used for relieving hydrostatic pressure are invariably geosynthetic and can be used very effectively in the following applications:
  • Base Drain Alone
  • Back Drain Alone (Pipe Outlets) 
  • Base and Back Drain 
  • Internal GT or GC Drains
Presenter: George R. Koerner, Ph.D., P.E. & CQA: Dr. Koerner is Director of the
Geosynthetic Institute. He is in charge of laboratory accreditation, certification, information
and education at GSI. He also manages research projects and has published over 100
technical papers in his 25 year association with geosynthetics. George’s doctorate is from
Drexel University in Geotechnical Engineering. He is a registered professional engineer in
Pennsylvania and New Jersey and an ASQ Certified Quality Auditor.

Meeting schedule:
5:30 - 6:00 Social and Registration
6:00 - 6:30 Dinner (chicken/fish/vegetarian - please note preference in your response)
6:30 - 8:00 Program

To register (REQUIRED):
Please contact Dr. Nazhat Aboobaker by 12/14/2012.
email:;  tel: 215-896-6264
Make checks payable to SEI-Phila Chapter at the door.