Variable diameter stirring type anchor rod and construction method thereof

A construction method and stirring technology, which is applied in the direction of foundation structure engineering, building, sheet pile wall, etc., can solve the problems of increased construction cost, easy pull-out of anchor rods, and many anchor rods, and achieves the improvement of pull-out resistance and anchorage The effect of less rod consumption and reduced labor intensity

Active Publication Date: 2014-03-26
FANGYUAN CONSTR GRP REAL ESTATE DEVT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the patent [CN201292529Y], a stirring bolt is disclosed, which includes a rod body, and a slurry outlet pipe and a stirring blade are installed at the front end of the rod body. This structure is simple in processing, simple in positioning process, and reliable in quality. A cement-soil cylinder is form

Method used

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  • Variable diameter stirring type anchor rod and construction method thereof
  • Variable diameter stirring type anchor rod and construction method thereof
  • Variable diameter stirring type anchor rod and construction method thereof

Examples

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Example Embodiment

[0034] Example one:

[0035] A variable-diameter stirring type anchor rod includes a hollow anchor rod body 1 and a drill bit 2 fixed at the front end of the anchor rod body 1. The length of the anchor rod body 1 is 6 to 30 meters. In this embodiment, 15 Meter-long bolt body 1, the front end of the bolt body 1 is provided with a grout pipe 3, the bolt body 1 communicates with the grout pipe 3, and the front end of the bolt body 1 is also fixed with a stirring body 4, the first stirring The inner end of the blade 41 is fixed on the outer wall of the anchor body 1, and the stirring body 4 includes a first stirring blade 41 fixedly connected to the pipe wall of the anchor body 1 and perpendicular to the center line of the anchor body 1, and the stirring body 4 It also includes a second mixing blade 42. The first mixing blade 41 is hinged with one end of the second mixing blade 42, and the second mixing blade 42 can swing along the hinge point in the plane where the blade surface of ...

Example Embodiment

[0040] Embodiment two:

[0041] The content of this embodiment is roughly the same as that of the first embodiment, except that there is only one first stirring blade 41.

Example Embodiment

[0042] Embodiment three:

[0043] The content of this embodiment is roughly the same as that of the first embodiment, except that there are 2 to 5 stirring bodies 4, and all stirring bodies 4 are evenly arranged along the circumferential direction of the outer peripheral wall of the anchor body 1, and a plurality of stirring bodies 4 The mixing efficiency can be improved, so that the coagulant and the soil can be better mixed evenly. The multiple mixing bodies 4 are distributed on the outer peripheral wall of the anchor body 1, making the anchor body 1 easier to maintain uniform rotation and uniform drilling , Improve construction quality.

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Abstract

The invention provides a variable diameter stirring type anchor rod and a construction method thereof, and belongs to the technical field of the building construction equipment. According to the invention, the technical problem that pulling resistance generated by the traditional anchor rod on a cemented soil enlarging body is not big enough is solved. The anchor rod comprises an anchor rod body, wherein the front end of the anchor rod body is provided with at least one slurry discharging tube and is also fixedly provided with at least one stirring body; the stirring body comprises a first stirring vane which is fixedly connected with the tube wall of the anchor rod body and is vertical to the center line of the anchor rod body; the stirring body also comprises a second stirring vane; the first stirring vane is hinged to one end of the second stirring vane; the second stirring vane can swing in a plane on which the vane surface of the first stirring vane is positioned along a hinged point; a spacing assembly which enables an included angle between the first stirring vane and the second stirring vane to be smaller than 180 degrees is arranged between the second stirring vane and the first stirring vane. The construction method comprises the following steps of: putting the anchor rod, drilling holes and grouting. The invention has the advantages that the constructed cemented soil enlarging body has bigger pulling resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of building construction equipment, and relates to a variable-diameter stirring anchor rod and a construction method thereof. Background technique [0002] When enclosing basement pits, roadbeds, etc., bolts are often used, and their function is to provide tension for the enclosure structure and prevent the enclosure structure (that is, the wall) from collapsing and loss. [0003] In the patent [CN201292529Y], a stirring bolt is disclosed, which includes a rod body, and a slurry outlet pipe and a stirring blade are installed at the front end of the rod body. This structure is simple in processing, simple in positioning process, and reliable in quality. A cement-soil cylinder is formed in the protective structure, and the friction between the soil and the soil is small, that is, the tensile force that can be provided for the enclosure structure is small, and the anchor is easy to pull out. Therefore, its stre...

Claims

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Application Information

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IPC IPC(8): E02D5/74
Inventor 陈志军朱跃民周海军金崇正阮冠华杨国兵
Owner FANGYUAN CONSTR GRP REAL ESTATE DEVT CO LTD
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