Detachable diving drilling rig gauge protection device

Abstract

The invention relates to a detachable diving drill gauge protection device which comprises a round bottom steel plate, a plurality of steel hoops and a plurality of arc-shaped steel plates, the steel hoops are fixedly connected into a round gauge protection cylinder through the arc-shaped steel plates, and the bottom of the round gauge protection cylinder is fixedly connected with the round bottom steel plate. A plurality of bolt holes connected with a drill bit are formed in the round bottom steel plate, and a hole used for being connected with a drill bit drill rod is reserved in the center of the round bottom steel plate. Repeated disassembly and use can be realized, and the cost is greatly reduced. When the cast-in-situ bored pile is constructed, it is effectively guaranteed that the diameter of the cast-in-situ bored pile meets the design requirement, and meanwhile the perpendicularity of the pile body can be guaranteed.

Description

technical field [0001] The invention relates to a device for protecting the diameter of a detachable bored pile, in particular to a device suitable for ensuring that the diameter of the bored pile meets the design requirements during the construction of the bored pile, which can be used repeatedly after being connected with a drilling rig. Background technique [0002] With the continuous acceleration of the urbanization process, while super high-rise buildings rise from the ground and urban elevated roads continue to extend, the foundation construction of super high-rise buildings is also increasingly developing at a deeper level. The excavation depth is getting deeper and deeper, the surrounding environment of the project construction area is becoming more and more complex, and there are more and more protective buildings. This makes the construction quality requirements of pile foundations higher and higher. [0003] The quality control requirements for the construction ...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of insufficient hole diameter during the construction of existing bored piles, and provides a detachable gage device for submersible drilling rigs. By using the device, hole collapse occurs during drilling. Under the action of rotary cutting, the hole diameter is guaranteed to meet the quality requirements of bored piles; at the same time, after installing the device, a certain weight is given to the drill bit, which can ensure that the drill bit is in better contact with the stone surface when the drilling rig encounters a boulder during construction. , speed up the construction efficiency, improve the construction quality of bored piles, but also save construction time and reduce construction costs

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