Construction method of large diameter assembled steel bellows culvert

Abstract

The invention discloses a construction method for a large-diameter assembled steel corrugated pipe culvert. The assembling construction of a corrugated pipe comprises the following steps of (1) arranging corrugated assembling culvert slabs in sequence in advance; (2) extending to the two sides with the midpoint of the central axis of the culvert as reference until reaching the two ends of an opening of the culvert; (3) assembling pipe culvert units: assembling each two corrugated assembling culvert slabs on the upper and lower sides of the corrugated pipe through butt-jointing the circular arc end surfaces; and closely pasting a rubber corrugated circular arc gasket and an arc steel plate on the circular arc internal side surface right against the butt-jointed seam from outside to inside; and fixing the rubber corrugated circular arc gasket and the arc steel plate through bolts; (4) detecting whether the section shapes and axis deflections of the assembled pipe culvert units reach standards or not; performing follow-up correction on the section shapes and the axis deflections of the assembled pipe culvert units; and performing once correction on the section shapes and the axis deflections of the assembled pipe culvert units; and performing once when every 5 meters pipe culvert is assembled; and (5) tightening all bolts by using an electric definite torque wrench according to a tightening force torque of 340 N.m + / - 70 N.m after the pipe culvert is completely finished. The large-diameter assembled steel corrugated pipe culvert, which is constructed by using the construction method, has the advantages of stable structure, high strength and high bearing capacity.

Description

technical field [0001] The invention belongs to the technical field of culvert construction, and in particular relates to a large-diameter assembled steel bellows culvert construction method. Background technique [0002] Assembled steel bellows is composed of multiple corrugated assembled culvert plates connected by bolts. It has thin plates, light weight, easy transportation and storage, simple construction process, convenient on-site installation and other good construction characteristics. It can solve the problem of The problem of structural damage to bridges and pipe culverts in cold northern regions, fast assembly and short construction period, is widely used in water supply and drainage in construction projects, such as expressway embankment drainage and flood protection, to avoid embankment from flood impact, and to protect the service life of roads . Due to the improper construction method of the current assembled steel bellows culvert, the completed culvert has i...

AI Technical Summary

Problems solved by technology

Due to the improper construction method of the current assembled steel bellows culvert, the strength of the completed culvert is not enough, the bearing capacity is poor, the culvert structure is unstable, the axial deviation is large, and the bellows culvert is easy to deform

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