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Article: Comparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators

TitleComparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators
Authors
KeywordsEDZ
Electronic detonator
Nonel detonator
Tunnel blasting
Issue Date2014
Citation
Rock Mechanics and Rock Engineering, 2014, v. 47, n. 2, p. 809-816 How to Cite?
AbstractThe article presents comparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators. The nonel detonator is a common type of detonator used in drill-and-blast tunnel excavations, while the use of electronic detonators in recent years has also been gaining popularity in complex tunneling conditions. The tunnel has an overburden of 25 to 40 m. The field study involves an ultrasonic wave measurement in drill holes at two different tunnel sections separately excavated by using electronic detonators and nonel detonators. The results demonstrate that using electronic detonators can help limit the EDZ development in drill-and-blast tunnel excavations. The disturbed zone is dominated by a change of stress and hydraulic head state. The changes in rock mass properties are insignificant or reversible. The presence of the failed zone and damaged zone affects the short-term and long-term stability of the tunnel.
Persistent Identifierhttp://hdl.handle.net/10722/214034
ISSN
2015 Impact Factor: 2.386
2015 SCImago Journal Rankings: 1.939

 

DC FieldValueLanguage
dc.contributor.authorFu, Hongxian-
dc.contributor.authorWong, Louis Ngai Yuen-
dc.contributor.authorZhao, Yong-
dc.contributor.authorShen, Zhou-
dc.contributor.authorZhang, Chengping-
dc.contributor.authorLi, Yanzhi-
dc.date.accessioned2015-08-19T13:41:36Z-
dc.date.available2015-08-19T13:41:36Z-
dc.date.issued2014-
dc.identifier.citationRock Mechanics and Rock Engineering, 2014, v. 47, n. 2, p. 809-816-
dc.identifier.issn0723-2632-
dc.identifier.urihttp://hdl.handle.net/10722/214034-
dc.description.abstractThe article presents comparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators. The nonel detonator is a common type of detonator used in drill-and-blast tunnel excavations, while the use of electronic detonators in recent years has also been gaining popularity in complex tunneling conditions. The tunnel has an overburden of 25 to 40 m. The field study involves an ultrasonic wave measurement in drill holes at two different tunnel sections separately excavated by using electronic detonators and nonel detonators. The results demonstrate that using electronic detonators can help limit the EDZ development in drill-and-blast tunnel excavations. The disturbed zone is dominated by a change of stress and hydraulic head state. The changes in rock mass properties are insignificant or reversible. The presence of the failed zone and damaged zone affects the short-term and long-term stability of the tunnel.-
dc.languageeng-
dc.relation.ispartofRock Mechanics and Rock Engineering-
dc.subjectEDZ-
dc.subjectElectronic detonator-
dc.subjectNonel detonator-
dc.subjectTunnel blasting-
dc.titleComparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00603-013-0419-2-
dc.identifier.scopuseid_2-s2.0-84896696410-
dc.identifier.volume47-
dc.identifier.issue2-
dc.identifier.spage809-
dc.identifier.epage816-

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