Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1982-09-16
1985-02-26
Husar, Cornelius J.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
405259, 37189, 254108, B66F 104, E02D 500, E02F 324, E21D 2100
Patent
active
045015171
ABSTRACT:
An apparatus and a method for excavating and pile reinforcing trenches is disclosed. A box-like central structure serves as a frame within which excavation by customary means, e.g., externally positioned back hoes, takes place. The outside walls of said central structure form temporary trench walls supporting the surrounding dirt. The inside walls of said central structure form a rear section, behind which flat piling is driven in before the entire unit advances. Advancement is carried out by means of longitudinal anchoring to the earth in the direction of travel of the apparatus and a longitudinal propulsion mechanism riding on the box frame and alternatively drilling and pushing periodically. In addition, end aligned shafts with cutting members are disposed within the front edges of the box frame walls to facilitate tunneling forward during the propulsion cycle.
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Husar Cornelius J.
Ostfeld David
Stodola Nancy J.
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