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US 4,112,692 AGranted
Soil compaction system
OwnerLowell M. Anderson, William D. Simmonsinventors
Life of this patent
Estimating the term…
Abstract
A method of compacting granular material with continuously vibrating a hollow pipe. The vibrating pipe is lowered into the material to be compacted with a crane type apparatus, maintained in a lowered position for a period of time and then withdrawn from the material. The vibration imparted to the material is increased by a number of annular rings located along the outer surface of the vibrating pipe.
Claims20
Vibratile apparatus for deep sub-surface compaction of granular soil material using continuously applied vibrational energy, comprising
- (a) probe means for transmitting a wave-like harmonic vibrational motion below the surface of the granular soil material when subjected to the continuously applied vibrational energy, said probe means including an elongated thin-walled member having opposed lateral surfaces separated only by the wall thickness of said elongated thin-walled member and having a substantially uniform cross-sectional shape perpendicular to its longitudinal axis, said elongated thin-walled member being shaped for insertion endwise into the granular soil material to cause both said opposed lateral surfaces to contact directly and transmit vibrational energy into the granular soil material to cause compaction of the granular soil material on both sides of said elongated thinwalled member;
- and
- (b) vibration increasing means attached to one of said lateral surfaces of said elongated thin-walled member for increasing the amount of vibrational energy conveyed into the granular soil material adjacent said one lateral surface while the other said lateral surface of said thin-walled member is still in contact with the granular soil material, said vibration increasing means including at least one continuous raised lateral projection extending outwardly across the full horizontal extent of said one lateral surface when said probe means is inserted into the granular material.
A vibratile system for deep sub-surface compaction of granular soil material using continuously applied vibrational energy, comprising
- (a) vibrating means for continuously creating vibrations at a predetermined frequency;
- (b) probe means for transmitting a wave-like harmonic vibrational motion below the surface of the granular soil material when subjected to the vibrational energy created by said vibrating means, said probe means including an elongated thin-walled member having opposed lateral surfaces separated only by the wall thickness of said elongated thin-walled member and having a substantially uniform cross-sectional shape perpendicular to its longitudinal axis;
- (c) coupling means for coupling said vibrating means to said elongated thin-walled member to cause said member to vibrate continuously at substantially the same frequency as said vibratory means in a direction substantially parallel to the longitudinal axis of said elongated thin-walled member;
- (d) support means for supporting said vibrating means, said probe and said coupling means to cause said elongated thin-walled member to be inserted into and withdrawn from the granular soil material to cause both said lateral surfaces to contact, vibrate and compact the granular soil material while said elongated thin-walled member is continuously vibrated by said vibration means through said coupling means;
- and
- (e) vibration increasing means attached to one of said lateral surfaces of said elongated thin-walled member for increasing the amount of vibrational energy conveyed into the granular soil material adjacent said one lateral surface while the other said lateral surface of said thin-walled member is still in contact with the granular soil material adjacent the other said lateral surface, said vibration increasing means including at least one continuous raised lateral projection extending outwardly across the full horizontal extent of said one lateral surface when said probe means is inserted into the granular material.
3 more elements
Dependencies are inferred from the claim text.