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US 4,718,792 AGranted
Prefabricated retaining-wall elements for protection, consolidation and/or facing of excavations, ground anchor and assembly devices, and procedure for application of these elements and devices
OwnerClaude C. Louisinventor
Life of this patent
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Abstract
In this slope facing process, facing elements (4) are assembled in situ, their edges having means of jointing with adjacent elements; drainage (D) is provided over the whole height of the face (1) of an excavation between this face and the facing (R) of elements (4) behind which a void-filling material (B) is injected, consisting for example of lean mortar or a swelling material.
Claims17
A method for facing and/or supporting, with prefabricated facing elements, natural or artificial slopes of an excavation in the ground such as a cut, bank, trench, pit, tunnel, comprising the steps of:
- (a) making in the ground an excavation having a face;
- (b) providing a plurality of ground anchors having outer ends;
- (c) driving the anchors into the ground, through the face of the excavation, and cementing the anchors into the ground, so that portions of the outer ends of the anchors project from the face to provide exposed ends;
- (d) providing an adjustable stop on the outer end of each anchor, and adjusting the stop;
- (e) positioning against the stops, on the exposed ends of the anchors, facing elements comprised of primarily solid prefabricated facing elements whose edges are provided with means for joining with adjacent elements, so that the adjusted stops align the prefabricated elements, and space the elements from the excavated face;
- (f) providing drainage over the height of the excavation, between the face of the excavation and the prefabricated facing elements;
- (g) injecting a filling material in the space between the facing elements and the excavated face;
- and
- (h) fixing the prefabricated elements to the ground anchors.
6 more elements
Dependencies are inferred from the claim text.