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Anti-grout-leaking sleeve joint for tension-compression composite anchor rod and anchor rod

A casing joint and composite technology, which is applied in construction, sheet pile walls, foundation structure engineering, etc., can solve the problems of grouting, engineering safety hazards, etc., and achieve the effects of good sealing performance, engineering safety, and fast connection

Pending Publication Date: 2019-06-07
XIAMEN YCUCG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that grouting is easy to form in the casing of tension-compression composite anchor rods in actual engineering, which brings serious safety hazards to the project, the present invention provides a new type of joint that can effectively prevent grouting in the casing, which can not only be used on the bearing plate Tightly connect the casing and the bearing plate, and the construction is very convenient

Method used

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  • Anti-grout-leaking sleeve joint for tension-compression composite anchor rod and anchor rod
  • Anti-grout-leaking sleeve joint for tension-compression composite anchor rod and anchor rod
  • Anti-grout-leaking sleeve joint for tension-compression composite anchor rod and anchor rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] First refer to Figure 1 to Figure 9 , a T-shaped connection sleeve 10 for a tension-compression compound anchor rod, comprising a T-shaped sleeve body and a rib hole 103 formed in the sleeve body, and the rib hole 103 extends axially from the sleeve body One end of the sleeve passes through to the other end, the sleeve body has a first cylinder section 101 and a first cylinder section 102 integrally formed, the outer diameter of the first cylinder section 101 is smaller than the outer diameter of the second cylinder section 102, and the connecting rib The hole 103 is a threaded hole matched with the anchor rod body 13 .

[0073] As a preferred mode of the present invention, the diameter of the connecting rib hole 103 is 10-30mm. As a preferred mode of the present invention, the outer diameter of the first barrel section 101 is 16-40 mm, and the outer diameter of the second barrel section 102 is 10-20 mm larger than that of the first barrel section 101 . As a preferre...

Embodiment 2

[0080] refer to Figure 10 to Figure 17 , the present invention also proposes a reinforced pressure-bearing plate for tension-compression composite bolts, including a pressure-bearing plate 11, on which the pressure-bearing plate 11 is provided with a grouting pipe perforation 112 and a rib hole 111, the pressure-bearing One end of the plate 11 along the axial direction is provided with a plurality of rib grooves 23, in the embodiment, six rib grooves 23 are shown, and the rib grooves 23 are provided with internal threads 231, and also include a plurality of reinforcing ribs 20 , the number of reinforcing ribs 20 corresponds to six, and a plurality of reinforcing ribs 20 are correspondingly threaded in the connecting rib groove 23 .

[0081] As a preferred mode of the present invention, a plurality of reinforcing ribs 20 are arranged in parallel. As a preferred mode of the present invention, the thickness of the pressure bearing plate body is 20-40 mm. As a preferred mode of...

Embodiment 3

[0087] refer to Figure 18 to Figure 30 , the present invention also proposes an anti-cross-slurry casing joint for tension-compression composite anchor rods, including a screw connection pipe 30 threadedly connected with the pressure bearing plate 11, a socket pipe 31 sleeved outside the sleeve pipe 135, and a sleeve joint The screw sleeve 32 outside the sleeve pipe 31, specifically, the sleeve pipe 31 is sleeved outside the sleeve pipe 135 by hot-melt bonding, and the two axial ends of the sleeve pipe 30 are respectively set as a first end 301 and a second end 302 , the first end 301 is screwed in the screw groove 33 of the pressure bearing plate 11, the second end 302 is screwed with a screw sleeve 32, and the end of the screw sleeve 32 forms a limiting protrusion extending toward the center of the screw sleeve 32. Edge 321, threaded thread 322 is provided in screw sleeve 32, socket pipe 31 is penetrated in screw sleeve 32 and sleeve pipe 31 forms support flange 311 in scre...

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Abstract

The invention relates to an anti-grout-leaking sleeve joint for a tension-compression composite anchor rod and an anchor rod. The anti-grout-leaking sleeve joint for the tension-compression compositeanchor rod includes a screw joint pipe connected with a bearing plate in a threaded mode and a socketed pipe connected outside a sleeve in a sleeving mode; a first end and a second end are correspondingly arranged on the two ends of the screw joint pipe in the axial direction, the first end is screw-jointed in the bearing plate, the second end is connected with a screw sleeve in a threaded mode, and a limiting flange extending towards the center of the screw sleeve is formed at the end of the screw sleeve; and the socketed pipe is arranged in the screw sleeve in a penetrating mode to form a supporting flange in the screw sleeve, and the supporting flange abuts between the end of the screw joint pipe and the limiting flange. According to the technical scheme of the anti-grout-leaking sleevejoint for the tension-compression composite anchor rod and the anchor rod, the sleeve is tightly connected with the bearing plate through the socketed pipe, the screw joint pipe and the screw sleevein sequence, no gaps exist between all connecting parts, and the sealing performance is good; the isolation between an inner rib body of the sleeve and a grouting body outside the sleeve can be completely ensured; and the grouting body can also be subjected to high-pressure grouting, the grout-leaking phenomenon in the sleeve can be completely eradicated, and the safety of the project is effectively guaranteed.

Description

technical field [0001] The invention relates to an anti-slurry casing joint and an anchor rod used for tension-compression composite anchor rods. Background technique [0002] The tensile-compression composite anchor (as disclosed in Patent No.: ZL201420450678.5) has significantly improved bearing capacity and greatly reduced engineering cost, and has been applied in practical projects one after another. The tension-compression composite bolt technology has broad application prospects in anchoring projects such as slopes, foundation pits, water conservancy, dams, mines, and underground engineering. [0003] The load transfer sequence of the tension-compression composite bolt is as follows: the rock and soil mass transfers the load to the anchor head through the support structure, and the anchor head transfers the load to the bearing plate through the free section and the pressure-bearing anchorage section, and the bearing plate will After the load is decomposed, it is trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/74E02D15/04
Inventor 程强傅玲玲施新新欧金坤侯也婷涂兵雄
Owner XIAMEN YCUCG
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