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October Geo-Institute Meeting

posted Sep 7, 2017, 5:30 AM by Carrie Nicholson   [ updated Sep 7, 2017, 8:05 AM ]
Please join the Maryland Geo-Institute for its October meeting with 
speaker Jonathan Bennett, P.E. and D.GE, on a Tale of Two Stabilizations.

 

 Date and Schedule
Wednesday, October 4, 2017
5:30 pm Cocktails (cash bar) 
6:30 pm Dinner 
7:00 pm Presentation 
 
Location:
The Engineer’s Club 
11 W Mount Vernon Place 
Baltimore, Maryland 
Information:  www.esb.org 
 
Cost:
$45 per person / $15 students 
Credit Card Payments Only – details below 


 Presentation Notes

A Tale of Two Stabilizations

Collectively, these two case histories illustrate how the specific conditions of a particular slope or landslide stabilization project necessitate creative approaches to a design and construction solution in addition to the value of a collaborative problem solving approach between engineer and contractor.

 Old Croton Trailway Stabilization

 In March 2015, a 185 year old gravity stone retaining wall supporting a 50 foot slope failed, resulting in a landslide of approximately 500 cubic yards of fill, glacial till, boulders, and deleterious materials. The landslide debris collided with an 8-story, 100-unit apartment building and exposed the historic (inactive) Croton Aqueduct. The building was immediately evacuated and temporary stabilization was provided by the local fire department. The New York Office of General Services invited Moretrench American Corp. to work on the emergency design-build team to stabilize the slope, protect the buildings above and below the slope, and rebuild the wall.

 Stabilization of S.R. 38 Emlenton Hill Improvements

As part of the reconstruction of S.R. 0038, Section A00, a roadway fill was constructed to accommodate realignment of S.R. 0038 between the I-80 Exit 42 interchange and the S.R. 0268 intersection near the bridge over the Allegheny River into Emlenton Borough. Structural retaining walls were constructed to support the realigned roadway along the steeply sloped hillside. The tallest of these walls consists of a tied-back soldier pile retaining wall requiring embedment into rock. Finite element models were created for each design height to analyze construction staging for the unique bottom up construction.

 This project case history discusses the intricacies of the wall design along with some of the challenges associated with its location along the steeply sloped hillside and includes the construction process, specialty equipment and unique procedures which were required to install the soldier piles, steel wales and the rock anchors using bottom-up construction methods.

 Speaker Biography:

Mr. Bennett has been involved in the design and management of specialty geotechnical construction projects throughout the Mid Atlantic United States for over 20 years. He specializes in the design and analysis of deep foundations, ground anchors and anchored structures primarily focusing on tieback walls, soil nailing, micropiles, drilled shafts, augercast piles, foundation underpinning, tiedowns and grouting for structural support. Mr. Bennett earned his BS and MS degrees in civil engineering, specializing in structures and soil mechanics, from West Virginia Institute of Technology and has completed a Master of Engineering and Technology Management degree from George Washington University. He is a registered Professional Engineer, an active member of ADSC, ASCE and DFI, and sits on a number of industry technical committees including the ADSC/DFI Micropile Committee (Immediate Past Co-Chairman), the ASCE Geo-Institute Earth Retention Systems Committee , and DFI Tiebacks and Soil Nailing Committee (Past Chairman).

Mr. Bennett serves as Business Development Manager for Moretrench American Corporation in the Mid-Atlantic and Midwest regions of the United States.

Payment Procedure:

We now accept registrations by credit card payments only. 
Please complete the two-step registration and 

Contact geo@ascemd.org if you have any questions or need assistance.

Interested in becoming a Geo-Institute corporate sponsor?
E-mail geo@ascemd.org for information.