A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modified stone column drill
A granular stone column drill which includes a first drill, a second drill and a displacement device, where—the first drill includes a tube within which the second drill at least partially, co-axially, lies; —the second drill includes a drill flight and first terminal end; —the displacement device includes a displacement unit and at least one guidance means; —the displacement unit includes a guide channel and an exposed wall such that the guide channel extends into the exposed wall; —the exposed wall lies approximately parallel to a centerline of the second drill; and—the at least one guidance means are located within the guide channel; such that the guide channel is a continuous circumferential channel that follows a wave like path, and either the at least one guidance means or the displacement unit is releasably or permanently attached to the second drill.
Modified stone column drill
A granular stone column drill which includes a first drill, a second drill and a displacement device, where—the first drill includes a tube within which the second drill at least partially, co-axially, lies; —the second drill includes a drill flight and first terminal end; —the displacement device includes a displacement unit and at least one guidance means; —the displacement unit includes a guide channel and an exposed wall such that the guide channel extends into the exposed wall; —the exposed wall lies approximately parallel to a centerline of the second drill; and—the at least one guidance means are located within the guide channel; such that the guide channel is a continuous circumferential channel that follows a wave like path, and either the at least one guidance means or the displacement unit is releasably or permanently attached to the second drill.
Modified stone column drill
MCMILLAN JARON LYELL (author)
2016-06-14
Patent
Electronic Resource
English
IPC:
E02D
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