Box culvert settlement joint construction method

Abstract

The invention relates to a construction method for a settlement joint of a box culvert. The construction method comprises the following steps: positioning and paying off; paying off on the plug template to determine the central position of the dowel bar, and then drilling according to the diameter of the dowel bar; reinforcing and mounting the steel-edged water-stop belt; the horizontal part of the steel edge water stop belt is reinforced and flattened; the machined dowel bar is installed in a hole position of a plug template, and the position of the dowel bar is adjusted; a dowel bar part on the outer side of the plug template is inserted into a sleeve of a dowel bar fixing frame, and then the dowel bar fixing frame is connected with the plug template through a drag hook; pouring concrete; mounting an embedded part; the embedded part is dismantled; sealing paste is used for crack pouring. According to the construction method, the construction quality problem of the steel edge water stop belt, the dowel bar and the sealant of the box culvert settlement joint is effectively solved through the matching effect of the reinforcing batten, the steel bar support, the dowel bar fixing frame and the shaping square steel, the construction method is simple in process and convenient to operate, manpower is saved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of settlement joints, in particular to a construction method for box culvert settlement joints. Background technique [0002] The rainwater box culvert refers to a culvert built with reinforced concrete box-shaped pipe joints. It consists of one or more square or rectangular sections. The box culvert is provided with settlement joints in sections along the length of the cave body. Settlement joints refer to vertical joints set up to prevent building damage caused by uneven settlement of various parts of the building. When the height, load and structural form of the adjacent parts of the house are very different and the foundation is weak, the house may have uneven settlement, causing some weak parts to crack. To this end, settlement joints should be set at appropriate locations such as complex plane or body shape transitions, height changes, loads, foundation compressibility, and foundation treatment method...

AI Technical Summary

Problems solved by technology

[0003] In the traditional construction process, the construction of the steel edge rubber waterstop is generally reinforced directly from the middle with two upper and lower templates, which cannot effectively fix the rubber waterstop and easily cause position deviation

The horizontal section is drilled and fixed by binding wires and main reinforcement, which destroys the waterproof performance of the waterstop and cannot effectively ensure the smoothness and straightness of the waterstop; the installation and construction of the dowel bar adopts concrete pouring and vibration On the one hand, it is impossible to ensure the exact position and exposed length of the dowel bar, and on the other hand, the problem of steel bar obstruction is not considered in advance. In case of steel bar obstruction, it will not be possible to manually adjust the accurate position during the concrete pouring process; The construction of the sulfur two-component sealant uses fully buried polyethylene foam joint caulking boards. After the concrete is poured, the cutting machine is used to cut and fill the joints, which cannot effectively ensure the depth of the joints, and wastes manpower and material resources

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