CONSTRUCTION TECHNOLOGY OF EXISTING DIVERSION BOX CULVERT PROTECTION
With the improvement of land utilization,more and more content is involved in the protection of existing buildings,and it is of great significance to do a good job in the protection of existing facilities.Taking the box culvert protection construction of a project as an example,by analyzing three types of box culvert protection schemes,namely row pile+tie beam+prefabricated cover plate protection,foundation treatment+strip foundation+prefabricated cover plate protection,and unilateral buried cantilever retaining wall protection,the major difficulties of the existing box culvert construction are analyzed and the corresponding treatment measures are formulated,and the main technological processes and construction points of the construction of full casing bored pile,sleeve valve pipe grouting foundation reinforcement and buried retaining wall are expounded,which can provide reference for similar projects.
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