Combined sleeve spiral steel pile and mounting method
The invention discloses a combined sleeve spiral steel pile and an installation method. The combined sleeve spiral steel pile comprises a small-diameter steel pile body provided with small-diameter blades and a large-diameter steel pile body provided with large-diameter blades, a top connecting piec...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a combined sleeve spiral steel pile and an installation method. The combined sleeve spiral steel pile comprises a small-diameter steel pile body provided with small-diameter blades and a large-diameter steel pile body provided with large-diameter blades, a top connecting piece is arranged at the top of the small-diameter steel pile body, a bottom connecting piece is arranged at the bottom of the large-diameter steel pile body, and a top plate is arranged at the top of the large-diameter steel pile body; the small-diameter steel pile and the large-diameter steel pile have a first combined state and a second combined state, and in the first combined state, the bottom connecting piece and the top connecting piece are connected through a separable one-way rotation limiting structure, so that when the large-diameter steel pile rotates, the small-diameter steel pile is driven to rotate through the one-way rotation limiting structure; in the second combination state, the top of the small-diam |
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