Automatic retaining system and method for rectangular pipe jacking construction
The invention discloses a rectangular jacking pipe construction automatic retaining system which comprises a fixing frame and a retaining device, and the fixing frame is arranged in a starting well on the outer side of a jacking pipe; the retaining device comprises a retaining seat body, an automati...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a rectangular jacking pipe construction automatic retaining system which comprises a fixing frame and a retaining device, and the fixing frame is arranged in a starting well on the outer side of a jacking pipe; the retaining device comprises a retaining seat body, an automatic pop-up piece and a retaining rod; the retaining seat body is mounted on the fixing frame, a retaining groove is formed in the retaining seat body, an automatic pop-up piece is arranged at the bottom in the retaining groove, one end of the automatic pop-up piece is connected with the retaining groove, the movable end of the automatic pop-up piece is connected with one end of the retaining rod, the other end of the retaining rod is a working end, and the front side of the working end is an inclined plane; the working end of the retaining rod is matched with a retaining hole formed in the outer portion of the jacking pipe. The invention further provides an automatic retaining method for rectangular pipe jacking cons |
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