Anti-frostbite swelling method for mold bag concrete channel through polystyrene board
The invention discloses an anti-frostbite swelling method for a mold bag concrete channel through a polystyrene board and belongs to the technical field of channel projects. The anti-frostbite swelling method for the mold bag concrete channel through the polystyrene board comprises the following ste...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses an anti-frostbite swelling method for a mold bag concrete channel through a polystyrene board and belongs to the technical field of channel projects. The anti-frostbite swelling method for the mold bag concrete channel through the polystyrene board comprises the following steps that channel bed foundation soil a mold bag to be laid is compacted, and a channel slope is flattened; after the channel slope is flattened, the polystyrene board is laid on the channel slope face, and the thickness of the polystyrene board is 4 cm-12 cm; and the mold bag is laid on an insulationboard, before filling of concrete, the mold bag is soaked with water, and the thickness of the mold bag concrete is controlled to be 8 cm-15 cm. By laying the polystyrene board in a mold bag concretechannel lining, the frostbite swelling deformation of the channel foundation soil can be reduced, the frostbite swelling damage is restrained, the service life of a channel can also be prolonged, andthe maintaining cost of th |
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