River closure construction method for river-crossing cast-in-place bridge support foundation
The invention discloses a river-crossing cast-in-place bridge support foundation river channel closure construction method which comprises the following steps: determining closure design flow and closure conditions according to average flow of a river channel in unit time; a construction shortcut is...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
02.05.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a river-crossing cast-in-place bridge support foundation river channel closure construction method which comprises the following steps: determining closure design flow and closure conditions according to average flow of a river channel in unit time; a construction shortcut is arranged, and river channel desilting and rock ballast embankment are conducted; stone ballast occupation is carried out behind the embankment; in the occupation construction period, the flow guide pipes are buried in the mode of excavation after filling; dressed stone closure is carried out at the closure gap of the river channel; and after closure is completed, backfilling and compacting are conducted to form a cushion layer, and river channel closure construction is completed. According to the scheme, the project construction cost can be saved; meanwhile, after the support is dismantled, the filling slag can be used as abutment back filler, is recycled, is material-saving and environment-friendly, and conforms |
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Bibliography: | Application Number: CN202211681364 |