| 摘要 |
An annular assembly, or ring cell, is provided for testing the load beari ng capacity of piles. The ring cell walls of the annular assembly can be mad e of stamped material. The ring cell walls can be an outer ring wall and an inner ring wall. Alternately, the ring cell walls can have a "U"-type shape cross-section including an outer ring wall, an inner ring wall, and a top wa ll. Fluid can be provided to the annular assembly through fluid supply lines into an expansion zone. The expansion zone can be a space having a bladder for filling with fluid. In another embodiment, the expansion zone can be a s pace between a filler material capable of withstanding high pressure separat ed with a membrane. The pressure of the fluid in the expansion zone can be m onitored during testing.
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