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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 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 strength is weak, and the required anchor A large number increases the construction cost

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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Effect test

Embodiment 1

[0035]A variable-diameter stirring anchor, including a hollow anchor body 1 and a drill bit 2 fixed at the front end of the anchor body 1, the length of the anchor body 1 is 6 to 30 meters, and 15 meters are selected in this embodiment. Meter-long bolt body 1, the front end of the bolt body 1 is provided with a slurry outlet pipe 3, the bolt body 1 communicates with the slurry outlet pipe 3, and the front end of the bolt body 1 is also fixedly equipped with a stirring body 4, the first stirring The inner end of leaf 41 is fixed on the outer wall of anchor body 1, and stirring body 4 comprises the first stirring blade 41 that is fixedly connected with the pipe wall of anchor body 1 and perpendicular to the centerline of anchor body 1, and stirring body 4 Also comprise a second stirring blade 42, the first stirring blade 41 is hinged with one end of the second stirring blade 42, and the second stirring blade 42 can swing in the plane where the first stirring blade 41 blade surfac...

Embodiment 2

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

Embodiment 3

[0043] The content of this embodiment is roughly the same as that of Embodiment 1, except that there are 2 to 5 stirring bodies 4, and all stirring bodies 4 are evenly arranged along the outer peripheral wall of the bolt body 1, and multiple stirring bodies 4 It can improve the stirring efficiency, so that the coagulant and the soil can be mixed evenly, and the multiple stirring bodies 4 are evenly distributed on the outer peripheral wall of the anchor body 1, so that the anchor body 1 is easier to maintain uniform rotation and uniform speed drilling. , Improve the 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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