And diversion cofferdam of wider water-passing riverway penetrates through lower part of urban comprehensive pipe gallery
The utility model provides a diversion cofferdam for an urban comprehensive pipe gallery to penetrate through a wider water passing river channel, which comprises a soil cofferdam around a foundationpit, row piles made of steel plates are arranged on the soil cofferdam, secondary ribs are fixedly co...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides a diversion cofferdam for an urban comprehensive pipe gallery to penetrate through a wider water passing river channel, which comprises a soil cofferdam around a foundationpit, row piles made of steel plates are arranged on the soil cofferdam, secondary ribs are fixedly connected behind the row piles, the row piles are arranged along an upper opening of the soil cofferdam in a line, and a connecting structure is arranged between adjacent row pile splicing seams; inclined struts are arranged on the rear sides of the row piles, the inclined struts are inclined by 45 degrees, the lower ends of the inclined struts are inserted into the soil cofferdam, and the upper ends of the inclined struts are fixedly connected with transverse main ribs; according to the scheme,scouring of water flow to the side wall of the cofferdam is effectively resisted, the stability is good, water flow is prevented from seeping into the foundation pit along loose soil, and the cost islower than that of a stone |
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