Rockmore International
Tel: +1 503 682 1001
Fax: +1 503 682 1002
Email: pejman@rockmore-intl.com
Web: www.rockmore-intl.com
Rockmore International is a leading manufacturer of Rock Drilling Tools used in percussive drilling applications. Serving the global construction and mining sectors, Rockmore tools have supplied the tunnelling drill and blast sector for more than 50 years.
These drilling tools consist of drill bits, drill rods, shank adapters, and couplings constituting the entire drill string for drilling operations for the most advanced drilling applications and drilling equipment. Rockmore Drilling Tools are designed and developed with continuous client feed-back to ensure that optimum tool designs are used at the pertaining project to attain maximum drilling efficiencies.
With an advanced research and development programme to keep ahead of drilling technologies, Rockmore is distinguished by quality drilling solutions that are delivered with dependent customer service.
From the Alps to the Andes, these tools continue to advance tunnel projects around the world by ensuring that drilling at the face is the most efficient and effective as possible.
tacs
Tel: +49 89 578 39616
Fax: +49 89 578 39632
Email: info@tacsgmbh.de
Web: www.tacsgmbh.de
A new software package from tacs is part of the acs guidance system used to show the actual position of a TBM, the position of the last erected ring and how the last erected ring fits into the TBM tail or ‘clearance window’.
The acs Viewer is connected with the TBM guidance computer. It requests the guidance data and backs up the acs databases to the surface. The new software package has two principle new features: 1) After ring erection an export file with all relevant data is automatically created to be used for further data processing or importing into an overall project database system.
2) For several TBMs it is possible to run several acs Viewer programs on one surface computer, each connected to one TBM.
This has been developed with Kenny Construction on the 18km long ECIS project in Los Angeles where four acs Viewer programs are connected to the four Lovat TBMs.
VMT
Tel: +49 7251 96 99 0
Fax: +49 7251 96 99 22
Email: international@vmt-gmbh.de
Web: www.vmt-gmbh.de
VMT is a survey technology company dedicated to the supply of goods and services for the machine bored tunnelling industry. Initially specialising in guidance systems for both segmentally lined and extended distance or curved pipe jacking applications, VMT has extended it scope of activities to include industrial deformation measurements as well as consultancy services.
Growth continues having received the order for the 120th SLS-T Guidance system for segmentally lined tunnels. This includes Heathrow Airside Road Tunnel, CTRL contracts 220 & 320, as well as projects in Asia Europe and the Americas. Equipment has been supplied on a wide range of machine types from manufacturers such as Herrenknecht, Kawasaki, Lovat and Wirth.
The number of guidance systems supplied for curved and extended distance pipe jacking applications is now also approaching the 120 mark. The ability to accurately perform curved drives frequently enables valued engineering design to substantially reduce costs with the elimination of unnecessary shafts.
Deformation measurements including the Ring Convergence Measurement System for evaluation of the change in shape of the ring in the area within the confines of the back up where conventional techniques are problematic to say the least are now in use on several projects in Europe.
The industrial measurement side of the company has introduced a Laser Interferometer system to enhance the speed and accuracy of its earlier Photogrammetric System for the measurement of the moulds used in the manufacture of segments as well as the segments themselves.
Extensive use of this technique has been made on the CTRL project. The system only requires one operator.
Wirth
Tel: +49 2431 83355
Email: heinz-peter.vogts@wirth-europe.com
Web: www.wirth-europe.com
This Reaming TBM is capable of boring diameters of up to 14.4m. The new aspects of the procedure are the disk cutters arranged on radially displaceable skids. During the cutter rotation they are spirally moved to the outside.
By varying, radial displacement of the cutters the circular shape of the tunnel can be flattened, a method that reduces the tunnel cross-section and limits the material needed for planing the invert.
By using the undercutting technique the energy consumption is reduced as the rock is broken against a free surface and therefore in the more coarse cuttings compared to conventional TBMs. A further advantage compared to the conventional method is the careful excavation and the depth of pull re-adjustable at any time, adapted to the geology.
