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Hole wall reinforcing structure of large-diameter deep and long pile construction hole

A reinforced structure, large-diameter technology, applied in drilling equipment and methods, wellbore/well components, measurement, etc., can solve the problems of hole wall contact, inability to compact the hole wall, limited radial travel, etc. The effect of the retaining wall

Pending Publication Date: 2022-04-29
中国水利水电建设工程咨询贵阳有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The pipe drilling system has a good compaction function on the hole wall when the shape of the hole wall is relatively regular; The radial stroke of the rod is limited, and it is difficult to contact the hole wall, so that it cannot play the role of tamping the hole wall

Method used

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  • Hole wall reinforcing structure of large-diameter deep and long pile construction hole
  • Hole wall reinforcing structure of large-diameter deep and long pile construction hole
  • Hole wall reinforcing structure of large-diameter deep and long pile construction hole

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Embodiment Construction

[0032] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0033] Such as Figure 1 to Figure 6 As shown, the hole wall reinforcement structure of a large-diameter deep-long pile construction hole according to the present invention includes a rotating shaft 1 and a drill bit 4, and the drill bit 4 is connected with the rotating shaft 1 through a mounting frame 2. On the mounting frame 2 A plurality of hole wall reinforcement mechanisms are slidingly installed, and the hole wall reinforcement mechanisms can move along the radial direction of the drill bit 4 . During the drilling process, the rotating shaft 1 drives the drill bit 4 to rotate through the mounting frame 2, and each hole wall reinforcement mechanism will hit the hole wall under the action of centrifugal force. After the collision, it will retreat a certain distance, and then hit the hole wall again under the action of centrifu...

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Abstract

The invention discloses a hole wall reinforcing structure of a large-diameter deep and long pile construction hole, and belongs to the technical field of building construction equipment. The structure comprises a rotating shaft and a drill bit, the drill bit is connected with the rotating shaft through a mounting frame, a plurality of hole wall reinforcing mechanisms are movably arranged on the mounting frame, and the hole wall reinforcing mechanisms can move in the radial direction of the drill bit. In the drilling process, all the hole wall reinforcing mechanisms can continuously hit and compact the hole walls under the centrifugal force and the collision effect; meanwhile, the hole wall reinforcing mechanism is in sliding connection with the mounting frame, so that the process of striking and tamping the hole wall by the hole wall reinforcing mechanism is more flexible and is basically not limited by conditions such as the shape of the hole wall.

Description

technical field [0001] The invention relates to a hole wall reinforcement structure for a large-diameter deep-long pile construction hole, which belongs to the technical field of building construction equipment. Background technique [0002] When driving pile holes, it is necessary to consider the soil properties around the construction site, and use mud retaining wall or steel casing to ensure the stability of the hole wall. However, in the actual construction process, due to the influence of various factors, there will still be collapses. hole condition. [0003] The Chinese patent document whose publication number is CN110952929A discloses a pipe-following drilling system with the function of hole wall compaction. When the drill pipe rotates and the casing follows up, the connecting cylinder will slide into the hole along with the casing. When the drill pipe rotates, it will drive the rotating part to rotate, so the rotating part can drive the spherical protrusion to rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/00E21B21/00E21B33/138E21B47/00
CPCE21B7/00E21B21/00E21B33/138E21B47/00
Inventor 那明齐吴双红潘成罗治勇江泰安
Owner 中国水利水电建设工程咨询贵阳有限公司
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