Evaluation of Alternative Techniques for Excavation Damage Characterization
2016 (English)In: ITA-AITES World Tunnel Congress 2016, WTC 2016 , 2 pp. 1168 - 1177 . / [ed] Society for Mining, Metallurgy & Exploration (SME), United States of America, 2016, 1168-1177 p.Conference paper (Refereed)
Numerous aspects of underground construction, from structural stability to construction costs, depended on the tunnel quality, including blast damage and the Excavation Damage Zone. Accurately quantifying the extent and severity of damaged rock is a problem. Recent technical developments in the field of Measurement While Drilling (MWD), including software for on-board logging and on-site analysis, have shown potential for rock-mass characterization. Ground Penetrating Radar (GPR) and P-wave velocity measurement have also improved and show similar potential. This paper explores the use of MWD, GPR and P-wave velocity measurements and uses them in techniques for excavation damage characterization and prediction. The paper is based on data collected from a small underground wastecollection site in central Stockholm, Sweden. The data is correlated against rock-mass characteristics and their responses are evaluated. Results indicate potential for excavation damage characterization for all tested techniques, which could minimize blasting damage and improve the over-all tunnel quality.
Place, publisher, year, edition, pages
United States of America, 2016. 1168-1177 p.
Excavation Damage Zone, Measurement While Drilling, EDZ, MWD, Drill & Blast, Tunnelling
Other Civil Engineering
Research subject Mining and Rock Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-60017OAI: oai:DiVA.org:ltu-60017DiVA: diva2:1040717
ITA-AITES World Tunnel Congress 2016
FunderRock Engineering Research Foundation (BeFo)