A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Telescopic pumpable props
A grout fillable prop has an inner member and an outer member adapted for movement between an extended use position and a retracted position. A grout inlet is formed in an upper part of a sidewall of the outer member to allow grout to pass into the prop. The inner member and the outer member have wall portions with plastic properties and are self-supporting. An installation fitting is fitted to the grout inlet and adapted to hold a grout filling tool without the use of separate fasteners. A one way valve is fitted to the installation fitting. The one way valve is formed of a length of lay flat hose one end of which is attached to the installation fitting. The hose locates inside the prop when the installation fitting is attached to the prop.
Telescopic pumpable props
A grout fillable prop has an inner member and an outer member adapted for movement between an extended use position and a retracted position. A grout inlet is formed in an upper part of a sidewall of the outer member to allow grout to pass into the prop. The inner member and the outer member have wall portions with plastic properties and are self-supporting. An installation fitting is fitted to the grout inlet and adapted to hold a grout filling tool without the use of separate fasteners. A one way valve is fitted to the installation fitting. The one way valve is formed of a length of lay flat hose one end of which is attached to the installation fitting. The hose locates inside the prop when the installation fitting is attached to the prop.
Telescopic pumpable props
BARNETT CRAIG DOUGLAS (author) / PIKE PHILLIP MARTIN (author)
2015-09-22
Patent
Electronic Resource
English
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