CN218669425U

CN218669425U - Resistance-increasing type combined anchor rod

Info

Publication number: CN218669425U
Application number: CN202220797123.2U
Authority: CN
Inventors: 李文强; 吴燕开; 马艳慧
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2023-03-21
Anticipated expiration: 2032-04-08

Abstract

The utility model relates to a resistance-increasing formula combination stock, it is by the shell anchor head that rises, the body of rod, connecting piece, sleeve pipe, only starch stopper, backing plate, nut are constituteed, the connecting piece comprises outer tube, band rod driving gear and slider, adopts the shell anchor head that rises, can fix the stock position well, through the connecting piece can increase the length of stock in the soil body, and the sleeve pipe passes through external screw thread connection with band rod driving gear, drives band rod driving gear through the sleeve pipe and rotates, and band rod driving gear rotates and makes the slider motion, and the slider top is the toper, exerts very little power and just can make the slider stretch into the soil body, increases and hinders the completion back, with second section body of rod and band rod driving gear female connection, dismantles the sleeve pipe again, and the circulation is used, will end starch stopper and backing plate and install in proper order at the body of rod afterbody again, the nut is with backing plate rigidity, this kind of structure that has, built-in slider can stretch into the soil body, can effectual increase the soil body, and the interaction force between the soil layer can be put forward with the improvement soil layer, satisfies the support requirement.

Description

Resistance-increasing type combined anchor rod

Technical Field

The utility model belongs to tunnel stock field, concretely relates to resistance-increasing type combination stock.

Background

In the underground engineering related to geotechnical engineering, in projects such as foundation pit and side slope, the anchor rod reinforcement technology is widely used due to advantages such as simple structure, convenient operation, low manufacturing cost and the like, stratum deformation collapse or instability can be prevented, the integrity of stratum is improved, the anchor rod can generate uplift force by utilizing the contact of the anchor rod and a soil body, in the existing project, the contact area of the anchor rod and the soil body is limited, the uplift force cannot be improved, the supporting requirement cannot be met, the number of the anchor rods can only be continuously increased to meet the supporting requirement, and if the soil layer is disturbed in the later stage, sufficient safety guarantee cannot be provided.

Disclosure of Invention

An object of the utility model is to the above problem, provide a resistance-increasing formula combination stock, this kind of structure that the stock has, built-in slider can stretch into the soil body, and the interact power that can be effectual between increase stock and the soil produces the synergism with surrounding soil layer, improves resistance to plucking ability, satisfies the requirement of strutting.

In order to achieve the purpose, the following technical scheme is provided in the experiment, and the resistance-increasing combined anchor rod comprises an expansion shell anchor head, a rod body, a connecting piece, a sleeve, a slurry stop plug, a base plate and a nut, wherein the expansion shell anchor head is driven into a soil body and then expands, the connecting piece comprises an outer tube, a transmission gear with a rod and a sliding block, the connecting piece is in threaded connection with the rod bodies at two ends, the sleeve is in threaded connection with the transmission gear with the rod, the slurry stop plug and the base plate are sequentially arranged at the tail part of the rod body, and the nut fixes the position of the base plate.

Furthermore, the rod body is a solid screw-thread steel rod body,

furthermore, the diameters of the two ends of the outer pipe are different,

further, the belt rod transmission gear rod is provided with an internal thread and an external thread,

furthermore, the diameter of the transmission gear rod with the rod is larger than the diameter of the thin end of the outer pipe and smaller than the diameter of the thick end of the outer pipe,

furthermore, the sliding blocks are 3 blocks and are uniformly arranged,

furthermore, the top of the sliding block is conical, and the sliding block is provided with gear grains,

furthermore, lubricating oil is smeared between the transmission gear with the rod and the sliding block,

furthermore, the sleeve can be disassembled through threads and recycled,

furthermore, the threaded connection is tightly connected in the same rotating direction,

the utility model has the advantages that: the utility model relates to a resistance-increasing formula combination stock, adopt the shell anchor head that rises, can fix the stock position well, through the connecting piece, can increase the length of stock in the soil body, the sleeve pipe passes through external screw thread connection with the driving gear of area pole, it rotates to drive the driving gear of area pole through the sleeve pipe, the driving gear of area pole rotates and makes the slider motion, the slider top is the toper, exert very little power and just can make the slider stretch into the soil body, after the resistance-increasing is accomplished, with second section body of rod and driving gear internal thread connection, after second section body of rod is fixed, dismantle the sleeve pipe again, recycle, will end thick liquid stopper and backing plate and install in proper order at body of rod afterbody again, the nut is with backing plate rigidity, this kind of structure that has, built-in slider can stretch into the soil body, can effectual increase the interaction force between stock and the soil, produce the synergism with surrounding soil layer, improve the resistance to plucking ability, satisfy the requirement of strutting.

Drawings

Figure 1 the structure of the present invention is schematically illustrated

FIG. 2 is a schematic view of the outer tube

FIG. 3 schematic view of a belt link gear tooth

FIG. 4 is a schematic view of a connector structure

FIG. 5 schematic view of a cannula

The labels in the figure are: 1-shell-expanding anchor head, 2-rod body, 3-outer tube, 4-slide block, 5-grout-stopping plug, 6-backing plate, 7-nut, 8-driving gear with rod, 9-sleeve,

Detailed Description

The invention will be further elucidated with reference to the drawings in an embodiment of the invention. As shown in the figure, do the utility model discloses a resistance-increasing formula combination stock, its characterized in that can extend in soil after rising shell anchor head (1), the body of rod (2), connecting piece, end thick liquid stopper (5), backing plate (6), nut (7), sleeve pipe (9) including rising shell anchor head (1), the body of rod (2) are the solid screw-thread steel body of rod, be divided two, the connecting piece comprises outer tube (3), band rod driving tooth (8) and slider (4), the one end and the body of rod (2) threaded connection that the connecting piece diameter is little, other end internally mounted band rod driving tooth (8) and slider (4), band rod driving tooth (8) and sleeve pipe (9) external screw thread connection, sleeve pipe (9) rotate, drive band rod driving tooth (8) and rotate and make slider (4) motion, slider (4) top are the toper, exert very little power and just can make slider (4) stretch into, after the resistance-increasing is accomplished, with second section of rod (2) and band rod driving tooth (8) connection, second section (2) fixed screw-thread bolt (6) is installed at the fixed back body of rod (6), nut (7) is in proper order to end thick liquid stopper (6) the body of rod (6) is dismantled the body of rod (6) and is used the backing plate (6) and is dismantled.

The concrete steps of the utility model are used:

1. according to the construction demand, confirm the length of every stock body of rod (2) and sleeve pipe (9), put slider (4) in the hole that outer tube (3) inside was reserved in proper order, put into outer tube (3) with band-tape unit drive tooth (8), prevent slider (4) rotation, will rise shell anchor head (1), first section body of rod (2), connecting piece and sleeve pipe (9) threaded connection in proper order.

2. And mechanically forming a hole at the position required by the support, wherein the diameter of the hole is required to meet the diameter of the outer pipe (3) in the connecting piece, and the hole can be smoothly entered.

3. Cleaning the drilled hole, extending the prefabricated anchor rod into the hole, applying pressure on the sleeve (9) after the anchor rod reaches the top end, so that the shell expansion anchor head (1) can go deep into the soil body, and ensuring that the first section of rod body (2) can not rotate in the subsequent rotation.

4. The sleeve (9) is rotated by using machinery, the transmission gear (8) with the rod rotates to enable the sliding block (4) to move, the top of the sliding block (4) is conical, and the sliding block (4) can extend into a soil body by applying a small force.

5. After resistance increase is completed, the second section of rod body (2) is in internal thread connection with the transmission gear (8) with the rod in the connecting piece, and after the second section of rod body (2) is fixed, the sleeve (9) is detached and recycled.

6. And a certain tension is applied to the anchor rod, so that the slide block (4) is in closer contact with the soil body.

7. Grout is injected into the holes, the grout stopping plugs (5) and the backing plates (6) are sequentially arranged at the tail parts of the rod bodies (2), and the backing plates (6) are fixed by nuts (9).

8. And tensioning and locking after curing to reach the strength.

Claims

1. The utility model provides a resistance-increasing formula combination stock, its characterized in that is including rising shell anchor head (1), the body of rod (2), connecting piece, grout stop plug (5), backing plate (6), nut (7), sleeve pipe (9), rising shell anchor head (1) can extend in soil after receiving pressure, the body of rod (2) are the solid screw steel body of rod, the connecting piece comprises outer tube (3), band pole driving tooth (8) and slider (4), the one end that the connecting piece diameter is little is threaded connection with the body of rod (2), and other end band pole driving tooth (8) and sleeve pipe (9) external screw thread connection rotate, and drive band pole driving tooth (8) rotate and make slider (4) motion, and slider (4) top is the toper, and it just can make slider (4) stretch into the soil body to exert very little power, increases and hinders after accomplishing, with second section body of rod (2) and band pole driving tooth (8) internal thread connection, dismantles sleeve pipe (9) again, recycles, grout stop plug (5) and install in proper order at the body of rod (2) afterbody backing plate (7) the nut position will be fixed.

2. The resistance-increasing type combined anchor rod according to claim 1, wherein: the connecting piece comprises outer tube (3), belt link driving tooth (8) and slider (4).

3. The resistance-increasing type combined anchor rod according to claim 1, wherein: the transmission gear (8) with the rod is provided with internal and external threads.