Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia

The Meninting Dam under construction on Lombok Island, West Nusa Tenggara, Indonesia, requires a good planning to build a diversion tunnel to support its development and mobilization. The diversion tunnel is planned to be built through rocks with medium to poor rock mass quality. The planning stage...

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Autores principales:	Wijaya Brilyan Jati, Warmada I Wayan, Indrawan I Gde Budi
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/024837401ec84e0c8528b080f37d8ef9
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spelling	oai:doaj.org-article:024837401ec84e0c8528b080f37d8ef92021-12-02T17:11:56ZModified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia2267-124210.1051/e3sconf/202132502001https://doaj.org/article/024837401ec84e0c8528b080f37d8ef92021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/101/e3sconf_icst2021_02001.pdfhttps://doaj.org/toc/2267-1242The Meninting Dam under construction on Lombok Island, West Nusa Tenggara, Indonesia, requires a good planning to build a diversion tunnel to support its development and mobilization. The diversion tunnel is planned to be built through rocks with medium to poor rock mass quality. The planning stage involves various parameters, i.e., the rock mass classification, using either the RMR or GSI method. Converting values from one method to another makes planning work easier. However, the constraints found were the limitations of the observational data, such as discontinuity conditions. The objective of this article is to discuss the alternative depiction of discontinuity conditions in rock mass using RMR method. An alternative equation was developed to obtain a prediction model for determining the RMR value, based on GSI data. The evaluation showed that the mathematical models developed in this research had a small gap of error compared to other values. The models then can be used to predict RMR value based on GSI data and vice versa, with a higher degree of accuracy and precision according to the actual rock surface conditions, especially in the construction site of diversion tunnel at Meninting Dam.Wijaya Brilyan JatiWarmada I WayanIndrawan I Gde BudiEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 325, p 02001 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Wijaya Brilyan Jati Warmada I Wayan Indrawan I Gde Budi Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia
description	The Meninting Dam under construction on Lombok Island, West Nusa Tenggara, Indonesia, requires a good planning to build a diversion tunnel to support its development and mobilization. The diversion tunnel is planned to be built through rocks with medium to poor rock mass quality. The planning stage involves various parameters, i.e., the rock mass classification, using either the RMR or GSI method. Converting values from one method to another makes planning work easier. However, the constraints found were the limitations of the observational data, such as discontinuity conditions. The objective of this article is to discuss the alternative depiction of discontinuity conditions in rock mass using RMR method. An alternative equation was developed to obtain a prediction model for determining the RMR value, based on GSI data. The evaluation showed that the mathematical models developed in this research had a small gap of error compared to other values. The models then can be used to predict RMR value based on GSI data and vice versa, with a higher degree of accuracy and precision according to the actual rock surface conditions, especially in the construction site of diversion tunnel at Meninting Dam.
format	article
author	Wijaya Brilyan Jati Warmada I Wayan Indrawan I Gde Budi
author_facet	Wijaya Brilyan Jati Warmada I Wayan Indrawan I Gde Budi
author_sort	Wijaya Brilyan Jati
title	Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia
title_short	Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia
title_full	Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia
title_fullStr	Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia
title_full_unstemmed	Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia
title_sort	modified rmr to determine rock mass quality, study case of diversion tunnel in meninting dam, west nusa tenggara, indonesia
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/024837401ec84e0c8528b080f37d8ef9
work_keys_str_mv	AT wijayabrilyanjati modifiedrmrtodeterminerockmassqualitystudycaseofdiversiontunnelinmenintingdamwestnusatenggaraindonesia AT warmadaiwayan modifiedrmrtodeterminerockmassqualitystudycaseofdiversiontunnelinmenintingdamwestnusatenggaraindonesia AT indrawanigdebudi modifiedrmrtodeterminerockmassqualitystudycaseofdiversiontunnelinmenintingdamwestnusatenggaraindonesia
_version_	1718381417846538240

Modified RMR to determine rock mass quality, study case of diversion tunnel in Meninting Dam, West Nusa Tenggara, Indonesia

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