Tension Track Milled Joint - TTMJ

06/05/2019

Sign up to our newsletter! In the last number we talk about the Field Trials, started in Cesena from March 2019, with a 20m deep rectangular test shaft and a pouring test. We also take a look on our next activities and we are pleased to share our experince at , guest of Soilmec stand.

TTMJ FIELD TRIALS
The first phase of the field trials of the TTMJ System took place in Cesena, Italy in March 2019.
A 20m deep rectangular test shaft, normally used for testing hydromills, was used for the tests. To simulate forming a joint, the face of three concrete beams were trimmed to full depth by the TTMJ Trimmer. The beams had three different surface profiles and two different concrete strengths.
A pouring test, simulating placing concrete into an adjacent diaphragm wall panel, also took place in March 2019. An optic fibre monitoring system was used to assess the flow and quality of the concrete into the TTMJ track and around the headed bars.
A split test is planned to take place this May, to measure the strength of the tension connection across the joint.

16/04/2019

The team has been busy during the days at , showing the project's program and the results obtained so far during the field test.
We had visits of professionals from various countries and specialized contractors, interested in how the TTMJ can be used to obtain high quality joints at high depth for the construction of .
Of particular interest is the capability of the TTMJ joints to act as continuous reinforcement in seismic areas.
A 2metre long sample of the pre-cast beam used for the Field Test was on display, to demonstrate the high quality finish level after trimming.
Follow us on www.ttmj-h2020.eu!

26/03/2019

TTMJ on GeoDrilling International

New Diaphragm wall technology project - Tension Track Milled Joint trials are underway in Italy

25/03/2019

The TTMJ team will be in attendance on the Soilmec stand at - booth FN.522, outdoor exhibition area. A 3D 1:20 scale model of the trimmer will be on display as well as samples of the guide track and the trimmed concrete. Seminars on the TTMJ System will also be available from April 9 to 12. To attend one of the seminars please email [email protected].

March 24, 2019: Tension Track Milled Joint - TTMJ posted images on LinkedIn

13/03/2019

The TTMJ team continue the testing program to demonstrate the potential of the system. The special trimmer was used to plane the second pre-cast concrete beam, in two elements, 10 m long each. This concrete beam (UCS=50 MPa) was built with bulges projecting up to 400 cm from the face, simulating the bulges in the short face of an excavated panel.
In this case, the speed of advance of the TTMJ trimmer was maintained at approximately 50 cm per minute, and the bulges created no or little impact.

31/08/2018

On August the 24th, Trevi started the excavation of the shaft at Soilmec facility, one of the enabling works planned for the ex*****on of the TTMJ system test field. Learn more...

The activity is part of the enabling works planned for the ex*****on of the TTMJ system test field

25/06/2018

TTMJ Consortium has been asked to contribute to a workshop on Enbankment Dams at the 26th ICOLD World Congress.

The Congress will take place in Vienna from 1 to 7 July 2018

13/06/2018

Members of the Consortium gathered in Rome University "La Sapienza" for the DFI-EFFC conference (June 5-8, 2018). The venue was the occasion to organize also a Consortium Meeting. John Coupland made a presentation about the progress of the TTMJ development to date to D. Nicholson, C. Barker, F. Petrella and M. Musarra who are the Arup personnel who will be involved in the field trials. The aim of the presentation was to provide all the attendees with a clear overview of the project status. The informal meeting was held in the Chiostro (cloister), just in front of the TTMJ booth.
During the three days, professionals of several nationalities stopped by the booth interested in the new method and the progress of the project. The status of the project was also presented in the session dedicated to Diaphragm Walls, and moved great interest in the audience.

04/06/2018

TTMJ will be part of DFI-EFFC International Conference on Deep Foundations and Ground Improvement, event organized by Deep Foundations Institute (DFI) along with European Federation of Foundation Contractors (EFFC) in Rome from June 5 to 8, 2018. If you are into it, we invite you to take part in the conference and meet us at booth 117.

Rome, University La Sapienza, June 5-8, 2018

23/03/2018

TTMJ and other Research & Innovation projects are presented in a special March 2018 edition of “Platinum – Business Leaders” magazine, supplement to Il Sole 24 Ore, the most important Italian national daily business newspaper.

Coordination and problem solving in a pioneering technical solution to eliminate safety, quality and environmental risks in underground works.

23/01/2018

TREVI, CCMJ and ARUP team members met in Brussels at EASME headquarter for a project monitoring meeting with PO, focused on Tension Track Milled Joint project (TTMJ). Learn more at https://goo.gl/jiDxiC