Site Measurement of Shotcreting Dust

by Yukinobu Yosida, Japan Highway Public Corp, Japan,
Goichi Fukuchi, Japan Highway Public Corp, Japan,

Document Type: Proceeding Paper

Part of: Shotcrete for Underground Support V


Shotcreting is broadly used today as an excellent lining system, which enables to assure rapidly the stability of excavated rock surface. This system however leaves room for improvements upon such as adhesion to rock surface, early age strength, rebound and generation of dust. The paper deals, focussing on the dust suppression among these subjects, with results of measurement of dust concentration in the vicinity of shotcretig site in tunnels, under several work conditions.

Subject Headings: Dust | Adhesives | Strength of materials | Rocks | Linings | Tunneling | Excavation | Shotcrete

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