GPR in use experiences from Finland. Jari Marjeta

Transcription

1 GPR in use experiences from Finland Jari Marjeta

2 Carement Oy Independent, nationwide, infra sector company, which provides measuring services along with other consultant services = no heavy traditional planning 25 minimum of engineer level employees + ~15 periodic 6 offices; Jyväskylä, Kalajoki, Oulu, Rovaniemi, Suonenjoki and Vantaa 4 representatives in: Joensuu, Lahti, Salo, Seinäjoki

3 Carement Oy Main customer Transport Agency/ and Regional Centers, 70 %, decreasing (2011), aim is 50/50 The annual value/ amount of municipal and city customers is increasing every year (Condition Management = network level (Joensuu), support services (Kalajoki) etc. B to B is starting to happen, special knowhow is bought Industry and mining of course a future market Some new possibilities in energy markets, windmills, nuke, water, geothermal systems.

4 Carement Oy Turnover 2011, 2,4 M - Northern 1 M - Rovaniemi 0,6 M - GPR related projects 2011 ~0,38 M - 42 % of that from Transport Agencies along with Regional Centers - City Services 45 % - Others 13 % (watercompanies, forest roads,

5 Equipment and used software GPR VW Transporter GPR Van + Indagon GPS SIR-20 and SIR ,2 Horn, 270 MHz, 400 MHz, 2600 MHz

6 Equipment and used software OTHERS Inventorycars (10 VW Caddy) + Indagon Car mounted sampling drill Profilometer (sub) FWD (sub)

7 Equipment and used software SOFTWARE RADAN + Structure Scan Roaddoctor PRO * 3 Roaddoctor Designer Raoddoctor Cam Link *2 ArcGis * 4 and MapInfo 3D WIN, cityprojects Autocad, cityprojects

8 Air voids content measurements No measurements for contractors, only as an expert in special cases (no activity in bigger scale), too competed! PANK approval for organization and GPR test every year (RAMK), just in case First time city customers more every year 2012 first case with deviation method and pavement thickness interpretation Larger areas GPR+GPS+VIDEO, like new dumps, harbours, parking areas etc (voids, thicknesses)

9 Road construction quality control Some projects, not that many (VT 6 TYL, Pultra-Kiikku) No demand for contractors, so why do it? 2012 wheel path remix quality project

10 Bridge deck surveys Only one project 2010, Pajakkakoski Aim was to determine how many -% of the deck you have to open and calculate the budget based on GPR (amplitude analysis) Results were good, but bridges are not that sexy any more = you do the things like you have always done (GPR has a bad name?), no active marketing

11 Road rehabilitation projects Using GPR as one of the tools Main business area , with some 1200 km of government roads done with tuned Guideline methods The size of the projects is coming down, although the updating of the old plans has started City projects

12 Road rehabilitation projects Basic content GPR (horn+400) Profilometer (rutting, 5mIRI, slope) FWD with backcalculation and dimensioning Damage inventory Historic data

13 Road rehabilitation projects Joensuu city street management project 4 years 700 km of measurements Partnership based Yearly budget, we propose what and when Yearly paving and structure renovation programs, along with repair debt etc.

14 Site investigations with GPR For city areal planning, new areas New road lines Wind mills, foundation and roads Ground cables (air->ground) Ice thickness (winter roads)

15 Site investigations with GPR Penttilä sawmill renovation

16 What else have we done with GPR Thickness of the gravel, quality and drainage on top of the bedrock Main tunnels in 350 m deep Paving 2012 Agnico Eagle, Kittilä gold mine Pääkonttori Rovaniemen toimisto Kalajoentie 6 PL 15, KALAJOKI ROVANIEMI etunimi.sukunimi@carement.fi Puh Puh y-tunnus Fax

17 What else have we done with GPR Possible road routes with help of GPR The quality of the mill foundation bedrock with GPR Some tests have been done Windmill site investigations Pääkonttori Rovaniemen toimisto Kalajoentie 6 PL 15, KALAJOKI ROVANIEMI etunimi.sukunimi@carement.fi Puh Puh y-tunnus Fax

18 THANK YOU! Jari Marjeta