Bedding rock surface bridge steel pipe support foundation and treatment method thereof
The invention discloses a bedding rock surface bridge steel pipe support foundation and a treatment method thereof, and relates to the technical field of support foundation treatment methods. The bedding rock surface bridge foundation treatment method comprises the steps of S1, work before hole form...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a bedding rock surface bridge steel pipe support foundation and a treatment method thereof, and relates to the technical field of support foundation treatment methods. The bedding rock surface bridge foundation treatment method comprises the steps of S1, work before hole forming, S2, anchor cable hole drilling, S3, anchor cable lowering, S4, tension reaction beam and anchortool mounting, S5, load application, S6, load holding, and S7, unloading. According to the bedding rock surface bridge foundation treatment method, main ribs tops are subjected to pre-bending treatment before bearing platform steel reinforcing ribs are bound, the steel reinforcing rib anchorage capacity and bearing platform punching-resisting capability can be improved, based on the anchor cableframe beam principle, a jack is used for exerting tension force to a steel strand, whether the micro pile stress condition is consistent with calculation or not is verified, a seamless steel pipe is adopted for following so as |
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