Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation

Nowadays, underground space has become an important part of human development involving economics, social and needs. Some areas especially in the urbanized surroundings are in need of a better solution for an efficient transportation system. Shallow tunnel usually constructed beneath an existing hig...

Full description

Saved in:

Bibliographic Details
Main Author:	Abdul Latif, Mohd Fandey
Format:	Thesis
Language:	English
Published:	2016
Subjects:	T Technology
Online Access:	http://eprints.usm.my/46476/1/Effect%20Of%20Pipe%20Roof%20Support%20On%20The%20Ground%20Settlement%20Induced%20By%20Shallow%20Tunnel%20Excavation.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.46476
record_format	uketd_dc
spelling	my-usm-ep.464762021-11-17T03:42:17Z Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation 2016-12-01 Abdul Latif, Mohd Fandey T Technology TA1-2040 Engineering (General). Civil engineering (General) Nowadays, underground space has become an important part of human development involving economics, social and needs. Some areas especially in the urbanized surroundings are in need of a better solution for an efficient transportation system. Shallow tunnel usually constructed beneath an existing highway or an area with limited spaces to improve transportation network. In the present study, pipe roof support was analyzed to determine the optimum function of its system that acts as a temporary support. The pipe roof is formed by installing a number of horizontal concrete piles at the crown of the tunnel by using microtunnelling boring machine (MTBM). The analyses were done in a few separate cases by using 2D-Finite Element modeling. The models were differentiated according to three tunnel shapes which are circular, horseshoe and square. Each tunnel had been analyzed according to the effect of the pipe roof tunnel to depth (0.0d, 0.5d, 1.0d and 2.0d) and spacing between twin tunnels (0.0d, 0.5d, 1.0d and 2.0d). The last part of the analyses is the verification study on a pipe roof tunnel project at Padang Rengas, Perak. A simple ground profile of the tunnel project had been created by using the information gathered from the bore log of the in-situ. Based on the analyses, the results had shown that the settlement has been reduced up to 90% with the installation of pipe roof system. As the tunnel depth increase, the magnitude of settlement above the tunnel has reduced up to 60%. Meanwhile, for the twin tunnels, the magnitude of settlement has increased up to 70% at the second tunnel due to the excavation of the first tunnel that cause disturbance to the soil strength. The magnitude of settlement of a twin tunnels also reduced from up to 58% when the spacing between the tunnels increase. 2016-12 Thesis http://eprints.usm.my/46476/ http://eprints.usm.my/46476/1/Effect%20Of%20Pipe%20Roof%20Support%20On%20The%20Ground%20Settlement%20Induced%20By%20Shallow%20Tunnel%20Excavation.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 Abdul Latif, Mohd Fandey Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation
description	Nowadays, underground space has become an important part of human development involving economics, social and needs. Some areas especially in the urbanized surroundings are in need of a better solution for an efficient transportation system. Shallow tunnel usually constructed beneath an existing highway or an area with limited spaces to improve transportation network. In the present study, pipe roof support was analyzed to determine the optimum function of its system that acts as a temporary support. The pipe roof is formed by installing a number of horizontal concrete piles at the crown of the tunnel by using microtunnelling boring machine (MTBM). The analyses were done in a few separate cases by using 2D-Finite Element modeling. The models were differentiated according to three tunnel shapes which are circular, horseshoe and square. Each tunnel had been analyzed according to the effect of the pipe roof tunnel to depth (0.0d, 0.5d, 1.0d and 2.0d) and spacing between twin tunnels (0.0d, 0.5d, 1.0d and 2.0d). The last part of the analyses is the verification study on a pipe roof tunnel project at Padang Rengas, Perak. A simple ground profile of the tunnel project had been created by using the information gathered from the bore log of the in-situ. Based on the analyses, the results had shown that the settlement has been reduced up to 90% with the installation of pipe roof system. As the tunnel depth increase, the magnitude of settlement above the tunnel has reduced up to 60%. Meanwhile, for the twin tunnels, the magnitude of settlement has increased up to 70% at the second tunnel due to the excavation of the first tunnel that cause disturbance to the soil strength. The magnitude of settlement of a twin tunnels also reduced from up to 58% when the spacing between the tunnels increase.
format	Thesis
qualification_level	Master's degree
author	Abdul Latif, Mohd Fandey
author_facet	Abdul Latif, Mohd Fandey
author_sort	Abdul Latif, Mohd Fandey
title	Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation
title_short	Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation
title_full	Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation
title_fullStr	Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation
title_full_unstemmed	Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation
title_sort	effect of pipe roof support on the ground settlement induced by shallow tunnel excavation
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Awam
publishDate	2016
url	http://eprints.usm.my/46476/1/Effect%20Of%20Pipe%20Roof%20Support%20On%20The%20Ground%20Settlement%20Induced%20By%20Shallow%20Tunnel%20Excavation.pdf
_version_	1747821679833251840

Effect Of Pipe Roof Support On The Ground Settlement Induced By Shallow Tunnel Excavation

Similar Items