Resources Contact Us Home
Methods for forming a short aggregate pier and a product formed from said methods

Image Number 2 for United States Patent #6354766.

Methods for augmenting the load bearing characteristics of short aggregate piers include preloading matrix soils, adding chemical additives to matrix soils and using mesh reinforcement in matrix soils and in cooperation with the aggregate lifts associated with pier constructions. Methods for expanding the feasibility of short aggregate piers include the use of gradations of aggregate, reducing friction between the short aggregate pier and adjacent matrix soils using liners or lubricating materials, controlling liquefaction by employing aggregate drains in short aggregate pier constructions, the use of non-impact forces alone or in conjunction with vibratory forces in construction short aggregate pier lifts, and the use of indigenous materials in short aggregate pier constructions. Other methods for augmenting the construction of short aggregate piers include the use of variable dimensioned lifts, the use of interlocking aggregates and recycled materials, such as recycled concrete, the use of temporary casings to protect pier cavities, and the use of load sensors to monitor stresses within short aggregate pier constructions and pressure cells to measure load/deformation characteristics. The invention also includes systems for lateral load stabilization and uplift anchoring utilizes short aggregate pier construction techniques; systems to apply preload to short aggregate piers to increase their stiffness. The invention also includes an apparatus for applying preload to short aggregate pier and matrix soils and other constructions incorporates a pair of half shells operatively associated with an actuator for moving them outward. Once inserted into the pier cavity, the half shells are forced outward to apply preload forces to the pier cavity walls and matrix soil.

  Recently Added Patents
System for purifying air through germicidal irradiation and method of manufacture
Cooling method and device for cooling a medium-voltage electrical installation in a protective sheath
System and methods for weak authentication data reinforcement
Methods and apparatus to determine impressions using distributed demographic information
Method of adenoviral vector synthesis
Lens driving device
Message value indicator
  Randomly Featured Patents
Ferroelectric capacitors with metal oxide for inhibiting fatigue
Double annular combustor
2/6 pole single-phase induction motor having shared windings
Multiple gas injection apparatus for LPCVD equipment
Joint lubrication with P2Y purinergic receptor agonists
Gear reducing device
Maintaining the nozzle surface of an ink writing head
Anti-heparan sulfate antibody, method for detection of heparan sulfate, and kit for detection of heparan sulfate
Substituted aryl- and heteroaryl-phenyloxazolidinones
Denture adhesive comprising a polymeric activator and methods of preparing the same