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Document ID (ISN)37019
CIS number 82-249
ISSN - Serial title 0010-244X - Cahiers des Comités de prévention du bâtiment et des travaux publics
Year 1981
Convention or series no.
Author(s) De Gélis B.
Title A machine for spraying concrete in tunnels
Original title Une machine à projeter le béton en galerie [in French]
Bibliographic information Mar.-Apr. 1981, No.2, p.51-53. Illus.
Abstract Review of the hazards and working conditions during wall consolidation in a newly driven tunnel, and description of a new technical development to deal with the problems of spraying wet concrete (a gun shooting ready-mixed concrete). The machine comprises 3 sub-units: 1. a vehicle on which are mounted the pumps, tanks and hoses; 2. the jib on which is mounted the cabin fitted with a telescopic boom carrying the concrete gun; 3. the concrete gun itself. Only the boom carrying the concrete gun is actually in the danger zone; the control cab is located in the section of the tunnel where the walls have already been consolidated, i.e. are safe from any falling rock.
Descriptors (primary) tunnelling; shotcreting; concrete work; support of mineworkings
Descriptors (secondary) protection against falls of rock; booths; description of equipment
Document type D - Periodical articles
Subject(s) Construction industry
Broad subject area(s)
Browse category(ies) Surface treatment