ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA

The traditional mining the main problem to risk for excavation, it is located in the southeast part of Yogyakarta special province, Indonesia. This mining will be built in the area that contains various types of rock, i.e. andesitic breccia, and tuffaceous sandstone. Before this underground structur...

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Main Authors: , SOMKHIT DALASANG, , Dr. Wahyu Wilopo, S. T., M.Eng.
Format: Thesis
Published: [Yogyakarta] : Universitas Gadjah Mada 2013
Subjects:
ETD
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author , SOMKHIT DALASANG
, Dr. Wahyu Wilopo, S. T., M.Eng.
author_facet , SOMKHIT DALASANG
, Dr. Wahyu Wilopo, S. T., M.Eng.
author_sort , SOMKHIT DALASANG
collection UGM
description The traditional mining the main problem to risk for excavation, it is located in the southeast part of Yogyakarta special province, Indonesia. This mining will be built in the area that contains various types of rock, i.e. andesitic breccia, and tuffaceous sandstone. Before this underground structure will be constructed, the main problems that may occur during the excavation need to be considered which relating to rock mass instabilities. Thus, to minimize and avoid those problems, it is necessary to do the detail site investigation related to geological conditions in order to estimate the rock mass quality in this area. This research is mainly aimed to evaluate the rock mass classification by applying one empirical methods such as Rock Mass Rating (RMR) .The purpose of RMR system is to classify the quality of rock mass by using surface data, in order to guide the excavation method and also to give the recommendation of mining supports as well as the unsupported span and stand-up time. Moreover, according to RMR method, which depended on the rock mass conditions in the study area, this research has also tried to figure out the engineering potential risks that may occur during the mining construction and attempted to suggest the appropriate method to control and prevent such those potential risks. Based on RMR determination by using surface data, the qualities of rock masses in the study area are classified to be good and fair rock, the good rocks are found on andesitic and andesitic breccias (RMR=70-77, unsupported span is 8.3 m, stand-up time is 333.33 days)
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spelling oai:generic.eprints.org:1192242016-03-04T08:43:21Z https://repository.ugm.ac.id/119224/ ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA , SOMKHIT DALASANG , Dr. Wahyu Wilopo, S. T., M.Eng. ETD The traditional mining the main problem to risk for excavation, it is located in the southeast part of Yogyakarta special province, Indonesia. This mining will be built in the area that contains various types of rock, i.e. andesitic breccia, and tuffaceous sandstone. Before this underground structure will be constructed, the main problems that may occur during the excavation need to be considered which relating to rock mass instabilities. Thus, to minimize and avoid those problems, it is necessary to do the detail site investigation related to geological conditions in order to estimate the rock mass quality in this area. This research is mainly aimed to evaluate the rock mass classification by applying one empirical methods such as Rock Mass Rating (RMR) .The purpose of RMR system is to classify the quality of rock mass by using surface data, in order to guide the excavation method and also to give the recommendation of mining supports as well as the unsupported span and stand-up time. Moreover, according to RMR method, which depended on the rock mass conditions in the study area, this research has also tried to figure out the engineering potential risks that may occur during the mining construction and attempted to suggest the appropriate method to control and prevent such those potential risks. Based on RMR determination by using surface data, the qualities of rock masses in the study area are classified to be good and fair rock, the good rocks are found on andesitic and andesitic breccias (RMR=70-77, unsupported span is 8.3 m, stand-up time is 333.33 days) [Yogyakarta] : Universitas Gadjah Mada 2013 Thesis NonPeerReviewed , SOMKHIT DALASANG and , Dr. Wahyu Wilopo, S. T., M.Eng. (2013) ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=59220
spellingShingle ETD
, SOMKHIT DALASANG
, Dr. Wahyu Wilopo, S. T., M.Eng.
ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA
title ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA
title_full ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA
title_fullStr ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA
title_full_unstemmed ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA
title_short ROCK MASS CLASSIFICATION IN BAWURAN AREA, YOGYAKARTA SPECIAL PROVINCE, INDONESIA
title_sort rock mass classification in bawuran area yogyakarta special province indonesia
topic ETD
work_keys_str_mv AT somkhitdalasang rockmassclassificationinbawuranareayogyakartaspecialprovinceindonesia
AT drwahyuwilopostmeng rockmassclassificationinbawuranareayogyakartaspecialprovinceindonesia