Highway tunnel karst cave plate span supporting system and construction method
The invention relates to the technical field of highway tunnel construction, and discloses a highway tunnel karst cave plate span supporting system and a construction method.The construction method comprises the steps that S1, a normal section of a tunnel is constructed, and a reinforced lining sect...
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Main Authors | , , , , , , , , , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
14.11.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to the technical field of highway tunnel construction, and discloses a highway tunnel karst cave plate span supporting system and a construction method.The construction method comprises the steps that S1, a normal section of a tunnel is constructed, and a reinforced lining section is arranged at the end of a tunnel karst cave section for transition; s2, expanding excavation is conducted on the tunnel karst cave which is not completely exposed according to the tunnel section measurement result; s3, building a construction platform at the karst cave section of the tunnel; s4, plate span structure cushion platform construction is conducted at the two ends of the tunnel karst cave section; s5, plate span structure construction is conducted so that the plate span structure can be supported on the plate span structure cushion table; s6, after the slab span structure of the karst cave section is constructed, primary support is conducted on the slab span section, and active support is formed; an |
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Bibliography: | Application Number: CN202311014153 |