Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern

The Surge Chamber Cavern (SCC) as part of underground power station in Hulu Terengganu Hydro Electric Project (HEP) is provided to protect the tailrace tunnel from water hammer effect due to fluctuation of water. The SCC is located is located downstream of the powerhouse and discharges in to a si...

Full description

Saved in:

Bibliographic Details
Main Author:	Mochamad, Trisugiwo
Format:	Thesis
Language:	English
Published:	2017
Subjects:	T Technology
Online Access:	http://eprints.usm.my/45748/1/Geomechanical%20Influence%20On%20Rock%20Mass%20Deformation%20At%20Hulu%20Terengganu%20Hydroelectric%20Power%20Surge%20Chamber%20Cavern.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.45748
record_format	uketd_dc
spelling	my-usm-ep.457482021-11-17T03:42:16Z Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern 2017-04 Mochamad, Trisugiwo T Technology TA1-2040 Engineering (General). Civil engineering (General) The Surge Chamber Cavern (SCC) as part of underground power station in Hulu Terengganu Hydro Electric Project (HEP) is provided to protect the tailrace tunnel from water hammer effect due to fluctuation of water. The SCC is located is located downstream of the powerhouse and discharges in to a single inclined long tailrace tunnel under pressure. The SCC has D shape with dimension of 14 m span, 46 m high, 65 m length and constructed 200 m under surface. The problem statements are the SCC was excavated in jointed volcanic rock formation, homogeneous isotropic, and has stressed; presence of “buckling” at middle section of long walls; some geological overbreaks and the cavern has constructed without concrete support (unlined).The objective this study are characterised of rock, mechanical properties, insitustress condition of rock mass; analyse the effect of rock mass properties due to the deformation and to compare between the numerical analysis and monitoring data due to deformation of SCC. The data collected on site were used to analysis Dip, Unwedge and Phase2 software for numerical analysis and analysing of displacement monitoring.From this study, it was concluded that rock mass of SCC classified as a good rock however it was deformed, it was visualized on site as buckling, some overbreak/collapse and creep, the maximum displacement 26.45 mm on the middle of long-wall. The peak displacement had been happened during excavation period and observing shows the displacement is still continuing as creep, ≤0.05 mm/ month. 2017-04 Thesis http://eprints.usm.my/45748/ http://eprints.usm.my/45748/1/Geomechanical%20Influence%20On%20Rock%20Mass%20Deformation%20At%20Hulu%20Terengganu%20Hydroelectric%20Power%20Surge%20Chamber%20Cavern.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Awam
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T Technology T Technology
spellingShingle	T Technology T Technology Mochamad, Trisugiwo Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern
description	The Surge Chamber Cavern (SCC) as part of underground power station in Hulu Terengganu Hydro Electric Project (HEP) is provided to protect the tailrace tunnel from water hammer effect due to fluctuation of water. The SCC is located is located downstream of the powerhouse and discharges in to a single inclined long tailrace tunnel under pressure. The SCC has D shape with dimension of 14 m span, 46 m high, 65 m length and constructed 200 m under surface. The problem statements are the SCC was excavated in jointed volcanic rock formation, homogeneous isotropic, and has stressed; presence of “buckling” at middle section of long walls; some geological overbreaks and the cavern has constructed without concrete support (unlined).The objective this study are characterised of rock, mechanical properties, insitustress condition of rock mass; analyse the effect of rock mass properties due to the deformation and to compare between the numerical analysis and monitoring data due to deformation of SCC. The data collected on site were used to analysis Dip, Unwedge and Phase2 software for numerical analysis and analysing of displacement monitoring.From this study, it was concluded that rock mass of SCC classified as a good rock however it was deformed, it was visualized on site as buckling, some overbreak/collapse and creep, the maximum displacement 26.45 mm on the middle of long-wall. The peak displacement had been happened during excavation period and observing shows the displacement is still continuing as creep, ≤0.05 mm/ month.
format	Thesis
qualification_level	Master's degree
author	Mochamad, Trisugiwo
author_facet	Mochamad, Trisugiwo
author_sort	Mochamad, Trisugiwo
title	Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern
title_short	Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern
title_full	Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern
title_fullStr	Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern
title_full_unstemmed	Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern
title_sort	geomechanical influence on rock mass deformation at hulu terengganu hydroelectric power surge chamber cavern
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Awam
publishDate	2017
url	http://eprints.usm.my/45748/1/Geomechanical%20Influence%20On%20Rock%20Mass%20Deformation%20At%20Hulu%20Terengganu%20Hydroelectric%20Power%20Surge%20Chamber%20Cavern.pdf
_version_	1747821557533638656

Geomechanical Influence On Rock Mass Deformation At Hulu Terengganu Hydroelectric Power Surge Chamber Cavern

Similar Items