profile network and offices vsl brands vsl academy r & d values safety quality history construction partner alternative contracting schemes fully integrated solutions local offers backed by an international network strong engineering and design capabilities strong project expertise from post tensioning to engineered solutions a pioneer in post tensioning business lines ground engineering diaphragm walls and piles ground improvement ground investigation vsol ground anchors construction bridges buildings slab on grade lng & lpg containment structures nuclear containment structures offshore structures heavy lifting formwork buildings & bridges repair strengthening & preservation structural diagnostics & monitoring repair & strengthening infrastructure protection systems & technologies post tensioning strand systems bearings bars & post tensioning bar systems stay cable systems damping systems for stays damping systems for buildings joints sustainable development sustainability policy sustainable solutions sustainable solutions design with pt offers significant savings save natural resources during construction enhance durability during the life cycle sustainable actions community actions sustainable construction careers join us more about our professions current opportunities creating solutionstogether your construction partner news sustainable development works begin at south ventilation building to admiralty tunnels site intrafor has just launched the works of the south ventilation building to admiralty tunnels site in hong kong scl 1128 as part of the shatin to central link scheme . this project commissioned by mtr corporation aims to the extension of the railway network connecting the new territories and kowloon to hk island . intrafor will execute the construction of two launch shafts for the excavation of four new underground tunnels and of one shaft for a new ventilation building . the three shafts will be constructed using diaphragm wall techniques . intrafor will also execute ground improvement treatments including tam tubes manchettes jet grouting and compensation grouting along the tunnels alignment . more news vsl integra secures full scope rehabilitation contract vsl in switzerland acting under the brand name vsl integra has been awarded a contract for repair and strengthening works at the headquarters of fors in studen near biel . vsl will act as main contractor and will undertake architectural and structural design work including quality management all of the rehabilitation work including concrete removal drilling to insert reinforcement and fixings formwork and concreting work as well as the installation and stressing of the post tensioning system demolition dismantling and rehabilitation works and all secondary works . more news quieter crossing in slovakia installation of a post tensioned deck was chosen as a quieter alternative than the traditional steel for a rail bridge crossing the v h river in an urban area of tren n in slovakia . the new bridge is being built as part of the upgrade of the nov mesto nad v hom p chov railway . the project for slovak railways is being co financed by eu funds and built by b gl and kr sl to a design by betoning . the seven span viaduct is 340m long and is being constructed by the balanced cantilever method . vsl is supplying tie bars and post tensioning together with pt plus ducting . more news press releases vsl news magazine project references brochures videos the company company profile network and offices vsl brands vsl academy r & d values safety quality history construction partner alternative contracting schemes fully integrated solutions local offers backed by an international network strong engineering and design capabilities strong project expertise from post tensioning to engineered solutions a pioneer in post tensioning business lines ground engineering diaphragm walls and piles ground improvement ground investigation vsol ground anchors construction bridges buildings slab on grade lng & lpg containment structures nuclear containment structures offshore structures heavy lifting formwork buildings & bridges repair strengthening & preservation structural diagnostics & monitoring repair & strengthening infrastructure protection systems & technologies post tensioning strand systems bearings bars & post tensioning bar systems stay cable systems damping systems for stays damping systems for buildings joints sustainable development sustainability policy sustainable solutions sustainable solutions design with pt offers significant savings save natural resources during construction enhance durability during the life cycle sustainable actions community actions sustainable construction careers join us about our professions current opportunities contact us download press releases vsl news magazine project references brochures videos 2013 welcome to vsl international ltd. ch 053.3.001.465 2 disclaimer accessibility