Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam

Research on the classification of rock mass quality in the intake tunnel Jlantah dam has not been carried out in detail because the research focuses on the location of the main dam so that empirical excavation methods and support systems have not been carried out. The rock mass quality will be used...

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Autores principales:	Putera Doni Apriadi, Hendrayana Heru, Setiawan Hendy
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/09e3ff096b914576810c525981e8ad4b
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spelling	oai:doaj.org-article:09e3ff096b914576810c525981e8ad4b2021-12-02T17:11:57ZAnalysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam2267-124210.1051/e3sconf/202132502009https://doaj.org/article/09e3ff096b914576810c525981e8ad4b2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/101/e3sconf_icst2021_02009.pdfhttps://doaj.org/toc/2267-1242Research on the classification of rock mass quality in the intake tunnel Jlantah dam has not been carried out in detail because the research focuses on the location of the main dam so that empirical excavation methods and support systems have not been carried out. The rock mass quality will be used as a parameter in determining the excavation method and tunnel support system that will be used in the Jlantah Dam intake tunnel. The investigation was carried out through engineering geological mapping, core drill evaluation, and supported by laboratory test data based on the Rock Mass Rating (RMR) and Q-system rock mass classification. The rock mass at the research location based on the RMR classification is in class IV (poor rock). Based on the Q-system method, a very poor rock class is obtained. Based on the analysis of the RMR and Q-system methods, the suitable support system for engineering geological conditions such as the intake tunnel of the Jlantah Dam is shotcrete 10 cm thick, steel set with a distance of 1.5 m and rockbolt length of 1.6 m with a distance of 1.5 m. The proper excavation method for the tunnel intake is top heading and bench.Putera Doni ApriadiHendrayana HeruSetiawan HendyEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 325, p 02009 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Putera Doni Apriadi Hendrayana Heru Setiawan Hendy Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam
description	Research on the classification of rock mass quality in the intake tunnel Jlantah dam has not been carried out in detail because the research focuses on the location of the main dam so that empirical excavation methods and support systems have not been carried out. The rock mass quality will be used as a parameter in determining the excavation method and tunnel support system that will be used in the Jlantah Dam intake tunnel. The investigation was carried out through engineering geological mapping, core drill evaluation, and supported by laboratory test data based on the Rock Mass Rating (RMR) and Q-system rock mass classification. The rock mass at the research location based on the RMR classification is in class IV (poor rock). Based on the Q-system method, a very poor rock class is obtained. Based on the analysis of the RMR and Q-system methods, the suitable support system for engineering geological conditions such as the intake tunnel of the Jlantah Dam is shotcrete 10 cm thick, steel set with a distance of 1.5 m and rockbolt length of 1.6 m with a distance of 1.5 m. The proper excavation method for the tunnel intake is top heading and bench.
format	article
author	Putera Doni Apriadi Hendrayana Heru Setiawan Hendy
author_facet	Putera Doni Apriadi Hendrayana Heru Setiawan Hendy
author_sort	Putera Doni Apriadi
title	Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam
title_short	Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam
title_full	Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam
title_fullStr	Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam
title_full_unstemmed	Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam
title_sort	analysis of support systems and excavation methods based on rock mass quality in the intake tunnel of the jlantah dam
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/09e3ff096b914576810c525981e8ad4b
work_keys_str_mv	AT puteradoniapriadi analysisofsupportsystemsandexcavationmethodsbasedonrockmassqualityintheintaketunnelofthejlantahdam AT hendrayanaheru analysisofsupportsystemsandexcavationmethodsbasedonrockmassqualityintheintaketunnelofthejlantahdam AT setiawanhendy analysisofsupportsystemsandexcavationmethodsbasedonrockmassqualityintheintaketunnelofthejlantahdam
_version_	1718381419236950016

Analysis of Support Systems and Excavation Methods Based on Rock Mass Quality in the Intake Tunnel of the Jlantah Dam

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