Surveying the different factors of falling in the TOYSARKAN STATE tunnel

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Showing Abstract of Surveying the different factors of falling in the TOYSARKAN STATE tunnel

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Title	Surveying the different factors of falling in the TOYSARKAN STATE tunnel
Topic:	Cave-in, Settlement and ditching	Published Year:	2004
Presentation:	Oral	Published in:	[ 6th Iranian Tunneling Conference ]
Original Language:	Persian	Full Text Size:	Not Available

Abstract of the Article

Note: English CIVILICA is in its Trial Period so Full Texts can not be provided! Persian users can download it here

Surveying the different factors of falling in the TOYSARKAN STATE tunnel

Authors:
[ SEYED MOHAMAD HASAN NAZARI ] - engineering geology MS, MAHAB GHODS engineering group
[ RAVANBAKHSH AMIRI ] - mine engineering MS
[ ALIREZA KOLIVAND ] - mine engineering student

Abstract:

TOYSARKAN tunnel with the length of 675 meter and section of 27 m is under excavation. Excavation operations are started from 2 span internal and external, that the external span is applied but the internal span because of the falling in the distance of 134 meter are stopped. Because of falling many amount of rocks are entered inside the tunnel and are find a dept settlement in the tunnel as a well and had many hazard to the instruments of the tunnel. In this paper after coming a introduction the project are explained and are given something about the geology of the region. And the many kind of un stability are explained. And with using the UNWEDGE (1992 HOEK) and the information they analysis and designed. In the end with bring the many kind of the falling in tunnel the results are gave.

Keywords:

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