There has been a lot of interest recently for Load and Resistance Factor Design (LRFD) guidance for Micropiles. The American Society of Civil Engineers (ASCE) is offering a webinar entitled Load and Resistance Factor Design (LRFD) for Geotechnical Engineering Features: Micro Pile Foundations. Information on the webinar can be obtained here. LRFD Methodology for this webinar is based on the approach used in the AASHTO LRFD Bridge Design Specifications which is probably the most extensive LRFD Specification applicable to geotechnical and foundation applications in existence today. I attended the first presentation of this webinar and found it to be helpful in understanding LRFD concepts as they relate specifically to micropiles within the framework of AASHTO LRFD Methodology. The presenter for the pilot presentation of the webinar was Jerry DiMaggio. Jerry has been an instrumental figure in the implementation of LRFD methodology to foundation applications for FHWA and AASHTO and is extremely knowledgeable on the topic. The ASCE website lists the date for the next webinar as March 3, 2011.
Also of interest in terms of LRFD for Micropiles will be the upcoming DFI / ADSC Micropile Seminar in Little Rock, AR on May 3-4, 2011. I will be giving a presentation on LRFD Design of Micropiles on Day 2 of the Seminar. Be sure to check the DFI website for more information and I hope to see you in Little Rock!