Tunnel tube concrete lining in loose rock - has fluid concrete pressed into annular gap at pressure above rock pressure

Tunnel tube concrete lining in loose rock - has fluid concrete pressed into annular gap at pressure above rock pressure

A tube is driven forward, a following support structure (5) is introduced, and a connecting annular gap between this and the rock is filled with a fluid substance, in providing concrete lining for a tunnel, esp. in loose rock. The filling substance is fluid support lining concrete pressed into the g...

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Hauptverfasser: ERLER,ECKART, MAGNUS,WOLF, BABENDERERDE,SIEGMUND
Format: Patent
Sprache:eng ; ger
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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creator ERLER,ECKART
MAGNUS,WOLF
BABENDERERDE,SIEGMUND
description A tube is driven forward, a following support structure (5) is introduced, and a connecting annular gap between this and the rock is filled with a fluid substance, in providing concrete lining for a tunnel, esp. in loose rock. The filling substance is fluid support lining concrete pressed into the gap. Concreting pressure is applied such as to build up a hydrostatic pressure exceeding that of the rock. The pressure is maintained by interpolation of control elements which stabilise it. Uses can be made of concrete which expands on setting hard. Lining is evenly and reliably embedded round the entire periphery, with surrounding rock prestressed and all stresses absorbed.
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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
title Tunnel tube concrete lining in loose rock - has fluid concrete pressed into annular gap at pressure above rock pressure
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