METHOD AND APPARATUS FOR TESTING LOAD-BEARING CAPACITY

摘要

In an embodiment, a hydraulic jack is provided having a first portion and a second portion. The first portion attached to a first section of a structure and the second portion attached to a second section of the structure. When a pressurized fluid is forced between the first portion and the second portion, a load is transferred to the first section and the second section by the pressure of the fluid on the first portion and the second portion. The first section and the second section are forced apart by the load, thus creating or enlarging at least one void in the structure. The pressurized fluid fills or partially fills one or more of the at least one void, thereby increasing the surface area effectively normal to the direction of the load in contact with the pressurized fluid.

主权项

1. A method of applying a load to a pile, comprising:
locating a top portion below a top section of a pile, wherein the top portion is attached to the top section of the pile; locating a bottom portion below and proximate the top portion and above a bottom section of the pile, wherein the bottom portion is attached to the bottom section of the pile, wherein at least a portion of the cross-section of the top portion and at least a portion of the cross-section of the bottom portion is open, and wherein the top section of the pile and the bottom section of the pile are contiguous through the open portion of the cross-section of the top portion and the open portion of the cross-section of the bottom portion; injecting a fluid between the top portion and the bottom portion, such that the top portion and the bottom portion are pushed apart, the top portion pushes up on the top section of the pile, the bottom portion pushes down on the bottom section of the pile, and at least one void is created between the top section of the pile and the bottom section of the pile in a portion of the pile extending through the open portion of the cross-section of the top portion and the open portion of the cross-section of the bottom portion, wherein once the at least one void is created the fluid fills at least a portion of one or more of the at least one void.