Cast-in-place pile lengthened pile casing for bad foundation
The utility model discloses a cast-in-place pile lengthened casing for bad foundation, which comprises a bottom cylinder, the upper surface of the bottom cylinder is provided with a first clamping groove, the inner wall of the first clamping groove is in lap joint with a first connecting ring, the u...
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Format: | Patent |
Sprache: | chi ; eng |
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