Jet Grouting for Water Cutoff and Excavation Support
Date: Friday, May 24, 2019
Time: 11:00AM (ASU & UCD)
12:00PM (NMSU)
2:00PM (GT)
Location: Arizona State University and Zoom (online)
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Matthew J. Nierrmann, PE
Vice President, Research & Development
Schnabel Foundation Copmany
Sterling, VA
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Jet grouting is a versatile ground treatment method for water cutoff and excavation support applications. The jet grouting method uses small diameter tooling and high velocity fluids to erode soil and mix with cementitious grout, creating soil-cement columns in a variety of shapes and sizes. This presentation will describe the basics of jet grouting and outline the key parameters for its use. Three case histories will be presented to illustrate the versatility of the method for water cutoff and excavation support. The first project used jet grouting to build a partially unreinforced circular shaft and tunnel structure that was tied into an existing brick sewer. The second project used jet grouting to seal full-depth gaps in a cement deep soil mix wall for a cut and cover subway tunnel. The third project used jet grouting to form a seal slab at the bottom of a braced sheetpile excavation in sand beneath the water table.
Matt Niermann is the Vice President of Research & Development for Schnabel Foundation Company in Sterling, Virginia. He received his BS and MS degrees in civil engineering from the University of Illinois at Urbana-Champaign and is a registered P.E. in Virginia and Ohio. Matt has over 20 years of experience in the design and construction of earth retaining structures, specialized foundations, and ground improvement. Matt is currently serving as chairman of the Post Tensioning Institute’s Prestressed Rock and Soil Anchor Committee. He is also active in several DFI and ADSC technical committees.
To participate online via Zoom:
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Meeting ID: 250 294 5270
International numbers available: https://zoom.us/u/JefTQ
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Important Dates
May 20 & 23, 2019
REU Mentor Training
Zoom links below
May 24, 2019
Industry - Matthew J. Niermann PE
Schnabel Foundation
Jet Grouting for Water Cutoff and Excavation Support
Arizona State University
(Information to the left)
May 29, 2019 - every Wednesday
REU Weekly Programming
Zoom link below
June 18-21, 2019
Geo-Institute & Engineering Mechanics Institute
Joint Conference at Caltech
Pasadena, CA
(see information below)
October 28, 2019 (Rehearsal Day)
October 29-31, 2019
NSF Site Visit to CBBG
Arizona State University
Tempe, Arizona
(Additional information forthcoming)
April 5, 2020 (Student Retreat)
April 6 - 7, 2020
YR5 CBBG Mid-Year Meeting
University of California Davis
(Additional information forthcoming)
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REU Mentor Training
There will be two mentor training sessions to go over the REU program and tips on mentoring undergraduate students. All REU graduate student mentors are expected to attend one of the sessions. While the sessions are scheduled for 90 minutes, the last 30 minutes is for questions. The sessions will cover the same content, so you only need to schedule one. If you are a REU mentor and cannot attend either session, please contact Colleen Bronner (cebronner@ucdavis.edu). Although tailored for the REU program, anyone in CBBG is welcome to attend either session. The sessions are listed below:
Monday May 20,
9:00AM to 10:30AM (ASU & UCD) / 10:00AM to 11:30AM (NMSU) / 12:00PM to 1:30PM (GT)
https://ucdaviscoe.zoom.us/j/889099415
Thursday May 23
8:00AM to 9:30AM (ASU & UCD) / 9:00AM to 10:30AM (NMSU) / 11:00AM to 12:30PM (GT)
https://ucdaviscoe.zoom.us/j/595710950
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REU Weekly Programming
The REU participants will be attending 3-hour weekly webinar sessions on Wednesdays starting on May 29th. The first two weeks these sessions will contain orientation-type material. More details on these sessions will be distributed in the near future.
Time: 9:00AM UCD / 10:00AM NMSU / 12:00PM GT
Meeting Link: https://ucdaviscoe.zoom.us/j/799977353
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NIEHS Superfund Research Program (SRP) - Progress in Research Webinars
Biogeochemical Interactions in Remediation Webinars
May 20, 2019
The NIEHS Superfund Research Program (SRP) invites you to join us for our next Progress in Research webinar series “Biogeochemical Interactions Affecting Bioavailability for in situ Remediation,” April 22, May 13, and May 20. This series will feature work from SRP Individual Research Projects, problem-solving grants focusing on the mechanisms of biogeochemical interactions impacting remediation of contaminated sediment, surface water, and groundwater. By understanding these complex interactions, we are better equipped to optimize remediation strategies and, therefore, improve science-based decision making for site management, priority-setting, and remedy selection. This series will share the results from these research projects.
The webinars are free and open to the public. More information and links to register are also available on the SRP Progress in Research website.
Session III – Mercury Bioremediation and Biotransformation Under Varying Biogeochemical Conditions
May 20, 2019 • 1:00 – 3:00 p.m. EDT
Session III Registration
In session 3, we will hear from SRP-funded individual research project grantees at Duke University and University of Maryland-Baltimore County. These investigators are conducting mechanistic laboratory studies to understand how varying site conditions might impact microbiological processes and, in turn, shift the direction of bioremediation in sediments.
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