Research and Application of Prefabrication Molds for Long-Distance Dense Perforated Collecting Water Box Culverts
The long-distance dense perforated collecting water box culverts of emergency water source project(surface water)in the main urban area of Shijiazhuang has a total length of 3 633 m.This structure adopts prefabricated thin-wall reinforced concrete structure,and the water collection holes on the four sides of the wall are large inside and small outside,and the opening rate is as high as 10%.In the precast construction of dense perforated collecting water box culverts,there are many problems such as multiple cross-hoisting operations,frequent assembly and removal of internal molds,difficult hole formation,tight construction period and heavy tasks.In this paper,a kind of fast installation and dismantling prefabricated mold for the vertical mold pouring construction is proposed,and the design scheme and key technology of sliding side mold,integral installation and dismantling inner mold,water collection hole forming mold and dismantling tool are analyzed.Through the application effect analysis of the project,it shows that the design of the prefabricated mold is reasonable,safe and efficient,and it effectively solved the problem of prefabrication of the long-distance dense perforated collecting water box culverts,which is expected to provide reference for the construction of similar structures.
dense perforatedcollecting water box culvertsprefabricated moldsliding side moldintegral installation and dismantling
NETL
NSTL
万方数据
