Trench shield assembly

Details Trench shield assembly Trench shield assembly

E - Fixed Constructions

02

D

E02D 29/02 (2006.01) E02D 17/08 (2006.01)

Patent

CA 2076237

TRENCH SHIELD ASSEMBLY Abstract of the Disclosure A trench shield assembly (12) having first and second shield walls (14,16) maintained spaced apart by a plurality of spacer struts (30) at the front end of the shield walls and an archway (32) secured at the rear end of the shield walls. Each shield wall is constructed from a plurality of beams (18) that are stacked on top of each other and secured together. Each beam includes a central web (20) and first and second face flanges (22, 24). When stacked and secured, the first face flanges define a first exterior skin (26) of the shield wall and the second face flanges define a second exterior skin (28) of the shield wall. The ends of the spacer struts project through transverse passages (44) defined in the shield walls. Stops (46) formed on the spacer struts, at a location spaced from the ends of the struts, limit the degree of insertion of the struts into the transverse passages. A locking plate (50) is secured to eachprojecting end of the struts to prevent withdrawal of the struts from the passages.

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