VIBROINJECTION DEVICE FOR SOFT GROUNDS STABILIZATION Russian patent published in 2002 - IPC

FIELD: construction engineering. SUBSTANCE: vibration device for soft grounds stabilization has vibratory pile driver-puller and perforated injector with slurry line, for instance, in the form of hollow rod; supporting frame having guides with regulated angle of inclination; lifting hydraulic cylinders connected with vibratory pile driver-puller and installed for resting on supporting frame during its lifting; clamping hydraulic cylinders for locking of vibratory pile driver-puller on injector rod; unbalanced masses with drives for sinking and pulling out of vibratory pile driver-puller with injector; and pneumohydraulic accumulator hydraulically communicated with working cavities of hydraulic cylinders. Invention provides for stability of injector rod, stabilization of ground in building basements, including cases with inclined position of injector, with no need of load-lifting crane. Device ensures longitudinal stability of rod with its considerable length, step sinking of injector operation at an angle to vertical, and spaces confined in height. EFFECT: higher efficiency. 2 dwg