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Anchorage unit and construction method using same to ream ground anchor

A technology of anchors and anchor pads, which is applied in the direction of foundation structure engineering, construction, sheet pile walls, etc., and can solve problems such as high cost and time-consuming construction conditions

Inactive Publication Date: 2010-08-18
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, soil anchors, piles, deep-buried anchors, or large concrete townships are used to fix engineering structures, large-scale equipment or slope reinfor

Method used

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  • Anchorage unit and construction method using same to ream ground anchor
  • Anchorage unit and construction method using same to ream ground anchor
  • Anchorage unit and construction method using same to ream ground anchor

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Embodiment Construction

[0061] see Figure 1-14 .

[0062] An anchorage structure, comprising a cylindrical drill bit 1, the front end of the drill bit 1 is fixed with a cross-type cutting tool holder; A central channel connected to the cavity, an anchor plate 5 is fixed in the central channel, and the center of the anchor plate 5 is perforated; the inner wall of the cavity in the drill bit 1 is fixed with a horizontal pin 8, and the pin 8 A font-shaped agitating wing 11 is set on the top, and an anchor block 14 is fixed on the agitating wing 11. The agitating wing 11 is vertically accommodated in the cavity on the drill bit 1, and the ring on the drill bit 1 corresponding to the cavity Both sides of the wall are provided with a wing opening for the stirring wing 11 to turn out; the top of the drill bit 1 is fixedly set with a cylindrical drill seat 20, and the center of the drill bit seat 20 has a connecting channel, and the top of the drill bit seat 20 is fixed. A hollow drill rod 31 is sleeved; ...

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Abstract

The invention discloses an anchorage unit and a construction method using the same to ream a ground anchor. The construction method comprises the following steps: using a drill, to which a steel strand is bolted, to drill into the depths of the stratum under the condition that the surface soil is not dug out; rotating the drill, extruding the cement slurry and opening stirring blades at the same time; cutting, spalling, crushing and stirring the foundation soil; reaming to form an anchorage body made of cement-soil mixture with the diameter of the anchorage body being approximately 1.2m and the height thereof being approximately 2m; keeping the drill in the anchorage body to constitute the anchorage unit; then, rotating the anchorage unit, extruding the cement slurry and withdrawing a drill holder and a drill stem at the same time, so that a cement-soil protection layer can be formed outside the steel strand as an anchor cable; and forming the ground anchor after the cement-soil is solidified. By using a disposable drill as the frame of the anchorage unit, the invention has the advantage of reasonable structure, convenient construction and low construction cost, makes full use of the characteristics of the materials and greatly increases the pull-out resistance. Therefore, the anchorage unit is suitable for various anchoring angles, and the construction method constitutes a novel anchor method for fixing engineering structures and large equipment and reinforcing side slopes.

Description

Technical field: [0001] The invention mainly relates to a construction method and an anchor tool for fixing engineering structures, large-scale equipment or slope reinforcement, etc., and specifically to an anchor tool and a construction method for using the anchor tool for reaming ground anchors. Background technique: [0002] At present, soil anchors, piles, deep-buried anchors, or large concrete townships are used to fix engineering structures, large-scale equipment or slope reinforcement by cables. Although these anchoring methods have greater pull-out resistance, they are more costly. , Time-consuming and need better construction conditions. Invention content: [0003] The purpose of the present invention is to make up for the defects of the prior art, to provide a kind of anchor and the construction method of using it to carry out reaming ground anchor. Anchor points are drilled, cement slurry is pressed in, and the anchor end is reamed and stirred. The one-time-use...

Claims

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Application Information

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IPC IPC(8): E02D5/74E02D5/80
Inventor 汪哲荪李瑛霞张勇左登发陈清
Owner HEFEI UNIV OF TECH
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