Hole reaming equipment and construction method of multi-branch anchorage system

A construction method and an anchoring technology, which is applied in the fields of drilling equipment, earthwork drilling, infrastructure engineering, etc., can solve problems such as unsatisfactory reaming effect, oil pipes occupying the anchor hole space, and anchoring bodies that cannot form multi-branch discs, etc., to achieve Avoid passing through unfavorable formations, improve construction conditions, and reduce the effect of over-redline problems

Active Publication Date: 2021-07-13
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] However, the anchor rod reaming equipment provided by the prior art is mainly aimed at soft soil areas, using the front hydraulic cylinder to push the telescopic arm to squeeze the soil to form a local enlarged body, but the reaming effect is not ideal for high-density soil layers, and cannot be formed. Multi-branch anchors, and the oil pipe of the front hydraulic cylinder is easy to occupy the limited anchor hole space

Method used

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  • Hole reaming equipment and construction method of multi-branch anchorage system
  • Hole reaming equipment and construction method of multi-branch anchorage system
  • Hole reaming equipment and construction method of multi-branch anchorage system

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Embodiment Construction

[0033] Such as Figure 1~4 As shown, a multi-branch anchoring system reaming equipment includes a fixing plate 2 for fixing at the anchor hole 9 of the soil body, and the fixing plate 2 is connected with a hollow pipe 1 for extending into the anchor hole, and the fixed The rear side of the plate 2 is connected with a motor 7 through a hydraulic cylinder 3, the main shaft of the motor 7 is connected with a spiral soil removal rod 6 passing through the hollow pipe 1, and the front end of the spiral soil removal rod 6 protrudes from the front end of the hollow pipe. The front end of the pipe 1 is provided with a reaming head 8 which is driven to rotate by the spiral soil removal rod 6 and controlled to expand and contract by the axial movement of the spiral soil removal rod 6 . The hole reaming equipment of the present invention drives the spiral soil removal rod 6 to move axially through the hydraulic cylinder, and then realizes the expansion and contraction of the reaming head....

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Abstract

The invention relates to a multi-branch anchoring system hole reaming equipment and a construction method, comprising a fixing plate for fixing at the anchor hole of the soil body, the fixing plate is connected with a hollow tube for extending into the anchor hole, the fixing plate The rear side is connected with a motor through a hydraulic cylinder, and the main shaft of the motor is connected with a spiral soil cleaning rod passing through the hollow tube. Control telescopic reaming head. The reaming equipment of the multi-branch anchoring system of the present invention adopts the method of applying pressure-cutting soil-transporting slag to carry out reaming, which is convenient and quick to use, and has good reaming effect, and can be used for rock and soil bodies with different conditions, whether it is soft soil or high density The soil can be reamed with this equipment and the reaming effect is remarkable; the structural design is compact and reasonable, does not occupy limited anchor hole space, and maximizes the reaming efficiency.

Description

technical field [0001] The invention relates to hole reaming equipment and a construction method of a multi-branch anchorage system, belonging to the technical field of rock-soil anchorage engineering. Background technique [0002] In recent years, in the field of geotechnical engineering at home and abroad, there is a problem of the effective length of the anchorage section of the grouted anchor. By increasing the length of the anchorage section, the anchorage force cannot be effectively increased. Anchor, conical anchor, helical blade anchor and enlarged head anchor, etc. Therefore, it is an important measure to increase the bearing capacity of the anchor by enlarging the inner end of the anchor to increase the stress area. [0003] Reaming bolt support technology has been maturely used in soft soil foundation pit engineering, and has achieved good support effect. The reaming is to perform positioning and quantitative reaming according to the design requirements after th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/32E21B17/22E02D5/74E02D15/04
CPCE02D5/74E02D15/04E21B10/32E21B10/322E21B17/22
Inventor 简文彬杨坚罗金妹黄聪惠黄炜李先忠
Owner FUZHOU UNIV
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