Method and device for protecting boiler foundation anchor bolt through movable type precast concrete pier

Abstract

The invention concretely relates to a method and a device for protecting a boiler foundation anchor bolt through a movable type precast concrete pier. The method is characterized by comprising the following steps of (1) paving an isolating membrane on the surface of a foundation, and installing a template along the periphery of the foundation, wherein the height of the template is not lower than the height of an exposed part of the anchor bolt; (2) using a bolt sleeve pipe for sleeving the anchor bolt, and adopting fine sand for filling and compacting a gap between the bolt sleeve pipe and the bolt; (3) casting plain concrete on the surface of the boiler foundation, and casting and compacting the periphery of the bolt sleeve pipe; (4) after the concrete achieves the strength, removing the template, and finishing concrete pier construction. The device is characterized in that the vertical bolt sleeve pipe is embedded in the concrete pier, is in a cylindrical shape, and is provided with an upper opening and a lower opening; the upper end port of the bolt sleeve pipe is flush to the upper end face of the plain concrete pier; the lower end port of the bolt sleeve pipe is flush to the lower end face of the plain concrete pier; the isolating membrane is arranged on the lower end face of the concrete pier. The method and the device provided by the invention have the advantages of convenience in construction, short period, good protection performance, low cost, and environment protection.

Description

technical field [0001] The invention belongs to the technical field of industrial building construction, and in particular relates to a method and a device for protecting boiler foundation anchor bolts by a movable prefabricated concrete pier. Background technique [0002] In the construction process in the field of industrial construction engineering, it is very common for the foundation of the equipment to embed the anchor bolts. However, the number of anchor bolts for the boiler foundation is large. During the later equipment installation process, the embedded anchor bolts will inevitably be damaged. , especially in the stage of earthwork backfill, the damage of earthwork machinery to anchor bolts is immeasurable. In order to solve the above problems, many construction workers currently use steel casings to protect bolts and cast-in-place plain concrete to protect bolts. The above methods require the use of a large number of steel casings, which are costly and have a long...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to solve the defects of poor protection performance, high cost and long construction period of the pre-embedded anchor bolts of the boiler foundation in the current method of using steel casing protection bolts and cast-in-place plain concrete to provide a movable prefabricated concrete The pier protection boiler foundation anchor bolt technology and its device use the prefabricated concrete pier to protect the anchor bolts, which has a large weight, high strength, good protection effect, short construction period, and the concrete pier can be used repeatedly. reduced costs

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