Continuous sliding support gantry for a large passage

Details Continuous sliding support gantry for a large passage Continuous sliding support gantry for a large passage

1980-07-07

1982-11-09

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405291, E21D 1534

Patent

active

043582249

ABSTRACT:
A gantry support for supporting a roof of a passage includes two parallel supporting units each having a lower frame provided with articulated tracks and an upper frame carried by props and two cross-members. The two cross-members carry an intermediate upper frame in the form of a beam which is slidable on guide elements and adapted to be clamped to the roof by small jacks. As the support advances the beam remains clamped against the roof of the passage until the beam reaches an end stop. The small jack is then released and the beam slidably advanced along the guide elements by means of a further jack.

REFERENCES:
patent: 2826898 (1958-03-01), Joy
patent: 3115754 (1963-12-01), Joseph
patent: 4189258 (1980-02-01), Maykemper et al.

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