Machine for and method of hardening soft ground

Details Machine for and method of hardening soft ground Machine for and method of hardening soft ground

1982-03-08

1983-09-06

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405263, 405258, E02D 312

Patent

active

044026307

ABSTRACT:
Agitation shafts provided with agitation vanes at lower portions thereof are fixed rotatably around a support cylinder to form a soft ground hardening machine. A direction control unit is provided at a lower portion of the support cylinder so as to control the direction in which the machine is inserted into and withdrawn from the soft ground. In a method of hardening the soft ground by using this machine, the direction in which the machine is inserted into and withdrawn from the soft ground is controlled as the direction in which the machine is being inserted into or withdrawn from the soft ground is measured.

REFERENCES:
patent: 2782605 (1952-09-01), Wertz et al.
patent: 3800544 (1974-04-01), Nakanishi
patent: 4084383 (1978-04-01), Kukino et al.

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