Get the New FHWA Drilled Shaft Manual
Dan’s Speaking Schedule September 21-23, 2010 - NHI Drilled Shaft Course, Iowa
October 5-6, 2010 - 42nd STGEC, Charleston, West Virginia
October 14-15, 2010 - DFI 35th Conference on Deep Foundations, Hollywood, California
October 19-21, 2010 - - NHI Drilled Shaft Course, Iowa
November 10, 2010 - ADSC Drilled Shaft Seminar, New York, New York
December 1-2, 2010 - TRB 27th Bridge Conference, San Antonio, Texas
Other DBA Team Speaking Appearences Tim Siegel (Sept 30-Oct 1, 2010): North Carolina ASCE Section Annual Meeting, Asheville, NC
Robert Thompson (October 5-6, 2010):42nd STGEC, Charleston, West Virginia
Tim Siegel (October 29, 2010): Deep Foundation Design - Axial Capacity, Settlement, and Lateral Resistance, Norfolk, Virginia
Tim Siegel (December 16, 2010): Shallow Foundation Design, Atlanta, Georgia
Steve Dapp (January 11, 2011): 2011 Louisiana Transportation Conference, Baton Rouge, Louisiana
Conferences, Meetings, Seminars, Workshops
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By Robert Thompson, on August 30th, 2010
 The Lunda/Ames design-build joint venture (Lunda Construction Company of Black River Falls, Wisconsin and Ames Construction, Inc. of Burnsville, Minnesota) has been awarded a contract to build the new Highway 61 Hastings Bridge over the Mississippi River in Hastings, Minnesota. Parsons Transportation Group is the designer and DBA is performing geotechnical design of the bridge foundations and settlement mitigation as a sub-consultant to PTG.
Here is the exisiting bridge that is being replaced (viewing from upstream):
In addition to several relatively large approach spans, the new bridge will include a 545ft long free-standing arch main span with four lanes of traffic and a 12 foot wide common use pedestrian/bike path. The new bridge will allow additional parking and an artistic plaza area south of the river. An anti-icing system will be installed to help achieve the 100-year design life.
On the south side of the Mississippi River, the bridge foundations will consist of spread footings bearing on dolostone bedrock. The remaining bridge foundations will utilize 42in diameter pipe piles. Several Statnamic load tests, both axial and lateral, will be performed by our friends at AFT.
Settlement mitigation is required beneath the North Embankment due to several relatively thick and deep strata of compressible fine-grained soils. The embankment will also be heavily instrumented to evaluate performance of the embankment and mitigation technique.
Preliminary work including subsurface investigation has begun. The subsurface investigation is being performed by Braun Intertec under sub-contract to DBA. Test piles will be installed in early September, 2010 with subsequent load testing soon after.
The awarded design-build contract is for $120M. The estimated project completion date is May 13, 2013.
DBA Project Page here.
Mn/DOT Hastings Bridge Project Home Page
Here is a sampling of the local news on the project award:
Hastings Star-Gazette
South Washington County Bulletin
Minneapolis/St. Paul Business Journal
By Robert Thompson, on July 25th, 2010
 Robert made a presentation at the recent Alabama Section ASCE 2010 Summer Meeting on our participation in some pile load tests on a couple of the storm protection projects in New Orleans (see previous post here). DBA worked for Kiewit Engineering Company (KECo) and the two joint ventures on the projects, providing geotechnical consulting. We are collaborating with KECo on a couple of papers (maybe more) that include the test data. This presentation covered the basics of the test pile programs, highlighted some of the results, discussed the measured setup values for the piles (driven in the soft Louisiana clays), and looked at some comparisons of the dynamic and static load test results to the pile resistance predictions made by DBA during the course of our work. Please note that the Corps of Engineers (and their consultants) were the design engineers. Our work was in support of the contractor joint ventures, especially evaluating pile drivability and installation issues.
Some of the photos included in the presentation were obtained from the public Flickr albums posted by Team New Orleans, U.S. Army Corps of Engineers. There are a lot of good photos there of many of the ongoing projects around New Orleans, as well as an album of historical photos.
You can check out several webcams at the West Closure project here.
You can see Robert’s presentation here.
By Robert Thompson, on May 28th, 2010
By Robert Thompson, on May 25th, 2010
As geotechnical/foundation engineers, we don’t usually get to see much of what happens on a project after the foundations are completed, especially a project like a large bridge that can take years to complete. Technology such as the Internet, webcams, and digital photography have made it easy for us to see how things are progressing on projects, as well as maybe get images of the completed structure. As I have noted before, some projects are using Twitter and Facebook to keep the public informed on closures, delays or overall project progress as part of good public relations. Her are some updates on a few of our recent projects.
kcICON:
The main span is well underway, including the cables. The kcICON Facebook page is here.
 
Audubon Bridge:
Check out the webcam. You can download images if you like. YOu can also do a time-lapse from Day 1 of construction.
 
Beck Street Bridge:
Part of the I-15 Express Link project in Salt Lake City, UT. The photos below I obtained from the photos page on the project web site. We were involved in the design and construction of the foundations for the Beck Street Bridge only.
  
By Robert Thompson, on May 10th, 2010
Our support of Kiewit Engineering and two Kiewit joint ventures working on the flood control projects around New Orleans has completed. I posted on the support work we provided for the Gulf Intracoastal Waterway – West Closure Project here. The JV for that project is Gulf Intracoastal Constructors (GIC), a joint venture of Kiewit and Traylor Brothers.
Another project we worked on is the Chalmette Levee Loop Improvements LPV-145 project. The joint venture for this project is Chalmette Levee Constructors (CLC), a joint venture of Kiewit, Massman, and Traylor Brothers. Some information about the project can be found at Traylor Brothers website here. This project consists of building over 5 miles of T-wall on the levee. A test pile program with piles at 4 tests sites was completed, including static and dynamic tests on H-piles and open-ended pipe piles. Dynamic, static compression, and static tension tests were performed at 3 of the 4 sites. One site had only dynamic tests during driving. Our newest staff engineer, Aaron Hudson begin_of_the_skype_highlighting end_of_the_skype_highlighting, started his tenure at DBA by heading to New Orleans to help me with our work on this project.
During the test pile program, the project location was accessible only by boat. A temporary bridge has been constructed over Bayou Bienvenue to provide better access. The bridge is a pre-engineered bridge kit similar to the Bailey Bridge sets used by the U.S. Army starting in WWII, and still in use today by the Army and the private sector all over the world. I had some experience as an Army Engineer officer planning and executing the assembly and launch of Bailey Bridges. In the Army labor is plentiful, so there are not near as many cranes and other equipment available when assembling a bridge kit as there are on a modern construction site. Compare this photo from a training exercise near Fort Polk, Louisiana in 1989 (from my Army days) with one in our show below and at the website of the current Bailey Bridge manufacturer.
I have posted some photos from our visits there to our Picassa Albums (linked below). There are pictures of the test piles and the temporary bridge. Also included are some photos I took of the Inner Harbor Navigation Canal Barrier project. This project is amazing with 66-inch diameter cylinder piles and 18” pre-stressed concrete piles making up the bulk of the structure. Project photos at the Corps of Engineers site are here.
Update 7/25/10: Webcams of the West Closure Project are here. The Corps’ Team New Orleans has a Flickr page here with lots of great photos.
By Robert Thompson, on December 18th, 2009
By Robert Thompson, on October 30th, 2009
Who says we only work on drilled shafts?? Robert had the opportunity to work for Kiewit Engineering Company providing geotechnical engineering support to Gulf Intracoastal Constructors (GIC), a joint venture of Kiewit and Traylor Brothers on the Gulf Intracoastal Waterway West Closure Project near Belle Chase, Louisiana. The project is part of the overall flood protection system improvements that are supposed to protect New Orleans from future hurricanes. The key components of this particular project are a massive gate and pump station across the Gulf Intracoastal Waterway. Go For more information on the project, go here, here, and here (video from Corps of Engineers).
Robert spent a good part of the summer in New Orleans doing a variety of geotechnical engineering tasks to support the construction efforts of GIC. The main thing he worked on was the test pile program. The project included a massive test pile program with 24 test piles spread among 5 test sites with various combinations of dynamic, static axial, static tension, and static lateral tests. The piles were mostly open-ended steel pipe piles varying from 18” to 54” in diameter. A few 18” x 18” pre-stressed precast concrete piles were also thrown in for good measure. In addition to performing drivability studies and evaluating tests data, Robert got to spend some time in the wonderful June and July weather in southern Louisiana on the site observing pile installation and testing. And as always, he came back with a lot of pictures. Here are a few to enjoy.
By Robert Thompson, on March 25th, 2009
Last week’s International Foundation Congress and Equipment Exposition was a huge success! Dan gave a keynote address on Tuesday on managing risk in deep foundations within the design-build delivery model. Paul, Erik, and I also had papers to present. The technical sessions were excellent, the indoor exhibits were excellent, and the outdoor exhibits of foundation equipment were outstanding! The ADSC, Geo-Institute, and PDCA were the co-organizers of the event. A big hats off to all of the staff of all three organizations that made the event a huge success! Thanks and “atta boy” go to Mohamad Hussein, P.E. (Conference Chair) and to Dan (Technical Program Chair) for all of their work, as well as the rest of the organizing committee.
I have also blogged about the conference here at GeoPrac.net.
Here are some pictures of the outdoor exhibits:
  
There were over 300 papers included in the conference. The proceedings were published as three Geotechnical Special Publications:
GSP 185: Contemporary Topics in Deep Foundations
GSP 186: Contemporary Topics in In-Situ Testing, Analysis, and Reliability of Foundations
GSP 187: Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support
The editors, Magued Iskander, Ph.D., P.E. (Polytechnic Institute of New York University), Debra Laefer, Ph.D. (University College Dublin, Ireland), and Mohamad Hussein, P.E. (GRL) all had their work cut out for them.
I have added all seven papers authored by DBA team members to our site. The links are below, or you can go to our Publications page.
Axtell, P.J., Stark, T.D., and Dillon, J.C., 2009. “Strength Difference Between Clam-Shell and Long-Reach Excavator Constructed Cement-Bentonite Self-Hardening Slurry Walls”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support, Geotechnical Special Publication No. 187, ASCE, pp. 297-304.
Brown, D.A., 2009. “Management of Risk in Deep Foundations with Design-Build”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp. 1-11. Brown, D.A. and Thompson, W.R., 2009. “Drilled Shaft Performance in Cemented Calcareous Formations in the Southeast United States”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp. 119-126.
Loehr, J.E and Huaco, D.R., 2009. “Probabilistic Calibration of Resistance Factors for Slope Stability”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in In-Situ Testing, Analysis, and Reliability of Foundations, Geotechnical Special Publication No. 186, ASCE, pp. 297-304.
Parsons, R.L., Pierson, M., Han, J., Brennan, J.J., and Brown, D.A., 2009. “Lateral Load Capacity of Cast-in-Place Shafts Behind an MSE Wall”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in In-Situ Testing, Analysis, and Reliability of Foundations, Geotechnical Special Publication No. 186, ASCE, pp. 560-567.
Rollins, K.M., Adsero, M.E., and Brown, D.A., 2009. “Jet Grouting to Increase Lateral Resistance of Pile Group in Soft Clay”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support, Geotechnical Special Publication No. 187, ASCE, pp. 265-272.
Thompson, W.R., Hill, J.R., and Loehr, J. E., 2009. “Case History: Value Engineering of Driven H-Piles for Slope Stability on the Missouri River”, 2009 International Foundation Congress and Equipment Expo, Contemporary Topics in Deep Foundations, Geotechnical Special Publication No. 185, ASCE, pp207-214.
By Robert Thompson, on June 15th, 2008
Here are the latest publication I have added to our Publication Page:
Brown, D.A. and Thompson, W.R. 2008. “Performance of Drilled Shafts in Cemented Calcareous Formations in the Southeast”, Foundation Drilling, Vol. 29, No.3 March/April 2008
Brown, D.A. and Thompson, W.R., 2008. “BRF-00008(536) Drilled Shaft Load Test Assessment, Sumter County”, Report for the Alabama Department of Transportation.
Axtell, P.J., Loehr, J.E., and Jones, D.J. “Case History: Multiple Axial Statnamic Tests on a Drilled Shaft Embedded in Shale” Deep Foundations Institute 31st Annual Conference, October 4-6, 2006, Washington, D.C.
Brown, D.A. and R. Thompson, 2006. “Report of the Evaluation of Foundation Response to Storm Surge Loading, U.S. 90 Biloxi Bay Bridge” Coastal Research Institute, Univ. of South Alabama.
Axtell, P.J., Owen, J.W., and Vollink, S.D. “Increase in Pile Capacity with Time in Missouri River Alluvium” Fifth International Conference on Case Histories in Geotechnical Engineering, April 13-17, 2004, New York, NY.
Technorati : Case History, Deep Foundations, Drilled Shafts, Driven Piles, Engineering Research, Foundation Construction, Foundations, Geotechnical Engineering, Load Test, Test Pile, Test Shaft
By Robert Thompson, on November 27th, 2007
A preliminary call for papers has been released for the International Foundation Congress and Equipment Expo 2009 (IFCEE ’09) to be held in Orlando, Florida March 15-19, 2009. The meeting is a joint venture of The Geo-Institute of ASCE (GI), The International Association of Foundation Drilling (ADSC) and The Pile Driving Contractors Association (PDCA).
Information about the call for papers is here.
I’ll have links to the conference web site once it is up and running, as well as blogging additionla information when available. This promises to be a great conference much like the 2004 Geo-Support Conference.
Technorati : Deep Foundations, Engineering Research, Foundation Construction, Foundations, Geotechnical Engineering
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The Lunda/Ames design-build joint venture (Lunda Construction Company of Black River Falls, Wisconsin and Ames Construction, Inc. of Burnsville, Minnesota) has been awarded a contract to build the new Highway 61 Hastings Bridge over the Mississippi River in Hastings, Minnesota. Parsons Transportation Group is the designer and DBA is performing geotechnical design of the bridge foundations and settlement mitigation as a sub-consultant to PTG.
ADSC Drilled Shaft Foundations Seminar – Mar 19
PDCA 14th Annual International Conference and Expo – May 6-8
TRB 7th International Bridge Conference – Dec 1-2
