Tunneling is one of the core com­petences of Marti. The com­pany has been in­volved as a special­ist con­tractor for the execu­tion of mech­anized and con­vention­al tunnel con­struc­tion works in re­lation to large-scale under­ground trans­por­tation and hydro­power pro­jects in Switzer­land and abroad. Marti is an ex­pert for under­ground pro­jects in both ur­ban and re­mote areas in va­rious kinds of geo­logical con­ditions.
www.marti-tunnel.ch

During the last five years Marti has be­come a trus­ted inter­nation­al part­ner for the exe­cu­tion of raise bo­ring and shaft con­struc­tion works. The de­vel­op­ment of the Marti raise bo­ring unit start­ed with two ver­tical pres­sure shafts (dia­meters up to 8.2 m / 27 ft; depth 430 m / 1,410 ft) for the 900 MW Nant de Drance pump-sto­rage plant in the south­west­ern part of Switzer­land and a job in Hong Kong. In 2016, the com­pany com­pleted work at the Chu­quica­mata copper mine in the north of Chi­le, the Uma Oya pro­ject in Sri Lanka and the­­ Búr­fell hydro­power plant in Ice­land. With our equip­ment, drilled shafts with dia­meters up to 6 m / 19.6 ft and depths up to 1,000 m / 3,280 ft are achiev­able.
www.marti.com

Es­tab­lished in 1965, Renesco has de­ve­loped from a local Swiss tunnel sea­ling com­pany to an inter­nation­ally reco­gnized spe­cial­ist for the exe­cu­tion of water­proof­ing and grou­ting solu­tions for all kinds of un­der­ground, hy­drau­lic and civil struc­tures. Our ser­vices in­clude sheet water­proof­ing / geo­mem­branes (such as PVC, FPO / TPO and HDPE), liquid applied / sprayed water­proofing, bon­ding sea­ling sys­tems for new struc­tures or res­tora­tion work. Full ser­vice in che­mi­cal and ce­men­titious grou­ting / in­jec­tion is avail­able in­clu­ding drilling services. To be able to meet our cus­tomers’ highest ex­pec­ta­tions with re­gard to the qua­lity and ef­fi­cien­cy of work, Renesco de­velops and con­stant­ly im­proves its equip­ment and method­ologies.
www.renesco.com

Marti Technik is a spe­cial­ist con­trac­tor for the de­vel­op­ment, ma­nu­fac­ture, sup­ply, op­era­tion and main­te­nance of cus­tomized belt con­vey­or sys­tems for tunnel pro­jects and other appli­ca­tions. The com­pany has ex­pe­ri­ence from abroad range of pro­jects to­tal­ing in more than 630,000 m or over 2,000,000 ft of con­vey­er belt length world­wide.
www.martitechnik.com