Anti-floating anchor rod reinforcing structure

Abstract

The utility model discloses an anti-floating anchor rod reinforcing structure, and relates to the technical field of anti-floating anchor rods. According to the technical key points, the anchor rod comprises an anchor rod body, the anchor rod body is sleeved with a plurality of hole wall supporting assemblies, the hole wall supporting assemblies are distributed in the axis direction of the anchor rod body, the hole wall supporting assemblies are fixedly connected with the anchor rod body, and the centers of the hole wall supporting assemblies are inserted in a penetrating mode through pouring pipes; the pouring pipe is rotationally connected with the multiple hole wall supporting assemblies. The anchor rod has the advantages that the bond stress of the anchor rod body can be improved through the arranged hole wall supporting assembly, settlement displacement of the anchor rod body is reduced, uneven settlement of nodes of the anchor rod body is avoided, and the anti-floating safety coefficient of an upper assembly of the anchor rod body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti floating anchor rod, specifically is a kind of anti floating anchor rod reinforcing structure. BACKGROUND

[0002] As a kind of geotechnical anchoring structure, anti floating anchor rod is the core component of foundation anti floating by prestressed application technology.The structure system is mainly by high-strength steel strand or tendon to form the force main body, and anchoring section adopts grouting process and forms composite anchoring system with rock mass.When underground water level fluctuates significantly or there is pressure-bearing water layer in engineering site, the water buoyancy of underground structure exceeds its self-weight and additional load combination effect, and anti floating anchor rod transmits pullout force to deep bearing stratum through prestressed tensioning system, and load balance is realized by using the friction effect between grouting body and rock mass interface.In building engineering practice, as the core component of underground structure anti floating system, the reasonable design and construction quality of anti floating anchor rod are directly related to the long-term stability and structural safety of underground building.

[0003] In the construction of building engineering anti floating anchor rod, the traditional process has significant technical bottleneck.In soft soil bottom layer or strong weathered rock layer and other complex geological conditions, due to irregular hole wall shape and poor soil self-stability, conventional construction method is easy to cause insufficient interface bonding degree between anchor grouting body and hole wall.This interface defect can significantly reduce the gripping force of anchoring body, and further cause anchor system settlement displacement, causing engineering accidents of large elevation deviation of group anchor system, and uneven settlement of each anchor node will cause stress redistribution phenomenon, which directly affects the anti floating safety factor of upper structure. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an anti floating anchor rod reinforcing structure, which significantly improves the stability and support effect of anchor rod under complex geological conditions by the hole wall support assembly and adjusting mechanism.

[0005] The above-mentioned purpose of the utility model is realized by the following technical scheme:

[0006] An anti floating anchor rod reinforcing structure, comprising an anchor rod body, a plurality of hole wall support assemblies are sleeved on the anchor rod body, the plurality of hole wall support assemblies are distributed along the axis direction of the anchor rod body, the hole wall support assemblies are fixedly connected with the anchor rod body, the centers of the plurality of hole wall support assemblies are penetrated and inserted through pouring pipes, and the pouring pipes are rotatably connected with the plurality of hole wall support assemblies.

[0007] In a preferred example, the hole wall support assembly can be further configured as follows: the hole wall support assembly comprises a support disc, a plurality of guard plates are installed on the support disc, the guard plates are arc-shaped plates, and the plurality of guard plates are attached to the anchor rod vertical rib of the anchor rod body.

[0008] The hole wall supporting assembly further comprises a reinforcing disc, which is located above the supporting disc and sleeved on the pouring pipe, and the reinforcing disc is rotationally connected with the pouring pipe; the supporting disc is further provided with an adjusting mechanism and a plurality of guide grooves; a top rod is slidingly inserted into the guide grooves; the adjusting mechanism is in contact with one end of the top rod; the other end of the top rod is provided with a movable groove; and a limiting assembly is installed in the movable groove and hinged in the movable groove.

[0009] In a preferred example, the reinforcing disc and the supporting disc are provided with a dustproof pipe therebetween, and the dustproof pipe is in contact with the reinforcing disc and the supporting disc.

[0010] In a preferred example, the limiting assembly comprises a limiting claw plate and a claw tooth, the claw tooth is located on the limiting claw plate and integrally arranged thereon, and the limiting claw plate is hinged in the movable groove; when the adjusting mechanism is rotated by a certain angle, the top rod can be pushed, and the top rod can rotate the limiting assembly.

[0011] In a preferred example, the adjusting mechanism comprises an adjusting block, the adjusting block is inserted into the supporting disc and coaxially arranged thereon, the adjusting block can rotate in the supporting disc, the pouring pipe is inserted into the shaft of the adjusting block and fixedly connected thereto, and the outer side of the connecting groove is provided with a limiting arc-shaped groove, an adjusting straight groove and a sliding-in groove matched with the top rod.

[0012] In a preferred example, the reinforcing disc is internally provided with a cavity structure, the reinforcing disc is externally provided with an annular rail, a plurality of supporting grooves are formed on the side of the reinforcing disc close to the plurality of protective plates, the plurality of supporting grooves are on the same horizontal plane, the annular rail is clamped in the plurality of supporting grooves, and the reinforcing disc can rotate along the axis thereof.

[0013] In a preferred example, the dustproof pipe is internally provided with a cavity structure, the inner side of the dustproof pipe is in communication with the inner side of the supporting disc, and the bottom end of the dustproof pipe can rotate on the upper surface of the supporting disc.

[0014] In summary, the utility model has at least one of the following beneficial technical effects:

[0015] On the one hand, the hole wall supporting assembly can improve the gripping force of the anchor rod body, reduce the settlement displacement of the anchor rod body, avoid the uneven settlement of the anchor rod body node, and improve the anti-floating safety factor of the upper assembly of the anchor rod body.

[0016] On the other hand, the anti-floating anchor rod reinforcing structure significantly improves the stability and supporting effect of the anti-floating anchor rod under complex geological conditions, ensures the high consistency of multiple anchor rod reinforcing structures, and better adapts to complex geological conditions such as soft soil or irregular hole wall. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the technical solution;

[0018] Figure 2 is a schematic diagram of the structure of the hole wall supporting assembly in the technical solution;

[0019] Figure 3 is a schematic diagram of the structure of the supporting disc cooperating with the adjusting mechanism in the technical solution;

[0020] Figure 4 is a schematic diagram of the structure of the protective plate in the technical solution;

[0021] Figure 5 is a schematic diagram of the structure of the reinforcing disc in the technical solution;

[0022] Figure 6 is a schematic diagram of the structure of the adjusting structure in the technical solution.

[0023] Reference signs: 1, anchor rod body; 11, anchor rod vertical rib; 2, hole wall supporting assembly; 21, supporting disc; 22, protective plate; 23, reinforcing disc; 24, dustproof pipe; 25, adjusting mechanism; 251, adjusting block; 252, connecting groove; 253, limiting arc-shaped groove; 254, adjusting straight groove; 255, sliding-in groove; 26, jacking rod; 27, limiting assembly; 271, limiting claw plate; 272, claw tooth; 28, guide groove; 29, supporting groove; 210, annular rail; 3, pouring pipe; 4, movable groove. DETAILED DESCRIPTION

[0024] The utility model will be further described in detail below in combination with the drawings.

[0025] As Figures 1-6 shown, the anti-floating anchor rod reinforcing structure disclosed by the technical solution comprises an anchor rod body 1, the anchor rod body 1 is provided with a plurality of hole wall supporting assemblies 2, and in the drawing, there are three hole wall supporting assemblies 2; the plurality of hole wall supporting assemblies 2 are distributed along the axial direction of the anchor rod body 1; the hole wall supporting assemblies 2 are fixedly connected with the anchor rod body 1; the centers of the plurality of hole wall supporting assemblies 2 are all penetrated and inserted through pouring pipes 3; and the pouring pipes 3 are rotationally connected with the plurality of hole wall supporting assemblies 2.The hole wall supporting assemblies 2 arranged can improve the gripping force of the anchor rod body 1, reduce the settlement displacement of the anchor rod body 1, avoid uneven settlement of the nodes of the anchor rod body 1, and improve the anti-floating safety factor of the upper assembly of the anchor rod body 1.

[0026] Further, the hole wall supporting assembly 2 comprises a supporting disc 21, a plurality of guard plates 22 are mounted on the supporting disc 21, the guard plates 22 are arc-shaped plates, and the plurality of guard plates 22 are attached to the anchor rod vertical ribs 11 of the anchor rod body 1;

[0027] The hole wall supporting assembly 2 further comprises a reinforcing disc 23, the reinforcing disc 23 is located above the supporting disc 21 and is sleeved on the pouring pipe 3, the reinforcing disc 23 is rotationally connected with the pouring pipe 3, the supporting disc 21 is further provided with an adjusting mechanism 25, a plurality of guide grooves 28 are formed in the supporting disc 21, a top rod 26 is slidably inserted into the guide grooves 28, the adjusting mechanism 25 is attached to one end of the top rod 26, an active groove 4 is formed in the other end of the top rod 26, and a limiting assembly 27 is mounted in the active groove 4 and is hinged in the active groove 4.

[0028] The adjusting mechanism 25 and the top rod 26 are arranged to push the limiting assembly 27 out, the limiting assembly 27 is in contact with the hole wall, the friction between the anchor rod body 1 and the hole wall is increased, the stability of the anchor rod body 1 in the hole is enhanced, the holding force of the anchor rod body 1 is improved, and the settlement displacement of the anchor rod body 1 is reduced.

[0029] Further, the limiting assembly 27 comprises a limiting claw plate 271 and a claw tooth 272, the claw tooth 272 is located on the limiting claw plate and is integrally arranged with the limiting claw plate, and the limiting claw plate 271 is hinged in the active groove 4; when the adjusting mechanism 25 is rotated by a certain angle, the top rod 26 can be pushed, and the top rod 26 can rotate the limiting assembly 27.

[0030] The limiting claw plate 271 and the claw tooth 272 are not limited in structure, as long as the claw tooth 272 can be wedged into the hole wall, the purpose is to increase the friction between the limiting assembly 27 and the hole, and to avoid the settlement of the anchor rod body 1; in addition, the structure is compact and small, and the soil entering the device can be greatly reduced.

[0031] Further, a dustproof pipe 24 is arranged between the reinforcing disc 23 and the supporting disc 21, and the dustproof pipe 24 is attached to the reinforcing disc 23 and the supporting disc 21.

[0032] The dustproof pipe 24 arranged herein plays a sealing role, can prevent soil from entering the adjusting structure, prevent the soil from piling up in the adjusting structure to cause blockage, and improve the use rate and service life of the device.

[0033] Further, the dustproof pipe 24 is a hollow structure, the inner side of the dustproof pipe 24 is communicated with the inner side of the supporting disc 21, and the bottom end of the dustproof pipe 24 can rotate on the upper surface of the supporting disc 21. The hollow structure can save materials on one hand, and can avoid the contact between the dustproof pipe 24 and the pouring pipe 3 on the other hand, thereby reducing the static friction to be overcome when the pouring pipe 3 rotates.

[0034] Further, the adjusting mechanism 25 comprises an adjusting block 251 which is coaxially arranged on the support disc 21 and can rotate in the support disc 21, the pouring pipe 3 is arranged through the shaft center of the adjusting block 251 and is fixedly connected with the adjusting block 251, and the outer side of the connecting groove 252 is provided with a limiting arc-shaped groove 253 matched with the top rod 26, an adjusting straight groove 254 and a sliding-in groove 255.

[0035] The structure of the adjusting block 251 can more accurately drive the position of the top rod 26 when the adjusting block 251 rotates, and the both ends of the top rod 26 are also designed as spherical shapes, so that the matching precision between the top rod 26 and the adjusting block 251 can be improved. The specific movement process is as follows: the rear end of the top rod 26 gradually slides on the surface of the adjusting straight groove 254 until the rear end of the top rod 26 slides to the maximum diameter range of the adjusting block 251 through the sliding-in groove 255, and correspondingly, the top rod 26 is extruded by the adjusting straight groove 254 and moves away from the adjusting block 251.

[0036] In a preferred example, the utility model can be further configured as follows: the inside of the reinforcing disc 23 is a cavity structure, the reinforcing disc 23 is provided with an annular rail 210 on the outside, a plurality of supporting grooves 29 are arranged on the side close to the reinforcing disc 23, the plurality of supporting grooves 29 are on the same horizontal plane, and the annular rail 210 is clamped in the plurality of supporting grooves 29 and can rotate along the axis of the reinforcing disc 23.

[0037] The shape of the reinforcing disc 23 is essentially a three-section hollow cylinder, the inside of the reinforcing disc 23 is fixedly connected with the pouring pipe 3, and the outside of the reinforcing disc 23 is rotationally connected with the inside of the supporting groove 29, so that the stability of the contact part between the anchor rod body 1 and the support disc 21 is ensured, and deformation is avoided.

[0038] The implementation principle of the embodiment is as follows:

[0039] The construction site is cleaned of sundries and obstacles, the site is leveled to create good conditions for construction, the hole position of the anti-floating anchor rod reinforcing structure is accurately placed by a surveyor according to design drawings and using a total station and other surveying instruments, and the hole position is marked with wooden stakes or lime, and the diameter of the hole position should be matched with the diameter of the support disc 21.

[0040] The processed anti-floating anchor rod reinforcing structure is slowly put into the drilled hole, the pouring pipe 3 is ensured to be centered and the hole wall supporting assembly 2 can be stably supported in the hole wall, the error between the hole wall and the hole wall supporting assembly 2 is avoided to cause the height inconsistency of the plurality of anchor rod reinforcing structures, when the insertion depth of the anchor rod body 1 meets the design requirement, the worker rotates the pouring pipe 3 counterclockwise, in the rotating process of the pouring pipe 3, the reinforcing disc 23 and the adjusting mechanism 25 connected with the reinforcing disc 23 are synchronously rotated, in the rotating process of the reinforcing disc 23, the reinforcing disc 23 is supported by the support grooves 29 of the guard plate 22 to ensure the rotating stability, the contact position between the anchor rod body 1 and the supporting disc 21 is not easy to be deformed, the dustproof pipe 24 plays a role of shielding the soil for the adjusting mechanism 25 inside the supporting disc 21;

[0041] With the counterclockwise rotation of the adjusting block 251, the rear end of the jacking rod 26 gradually slides on the surface of the adjusting straight groove 254, until the rear end of the jacking rod 26 slides to the maximum diameter range of the adjusting block 251 through the sliding-in groove 255, at this time, the corresponding jacking rod 26 is extruded by the adjusting straight groove 254 and moves away from the adjusting block 251, the limiting claw plate 271 rotatingly connected inside the movable groove is extruded by the jacking rod 26 and automatically rotates outward by 90 degrees to become a horizontal state, so that the jacking rod 26 limits the limiting claw plate 271 in the horizontal state, the jacking limiting claw plate 271 is tightly fitted with the hole wall and is in a state of tightly biting the hole wall, and the claw tooth 272 increases the friction between the hole wall, thereby providing stable support effect for the anchor rod body 1.

[0042] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. An anti-floating anchor reinforcement structure comprising an anchor rod body (1), characterized in that, The anchor rod body (1) is sleeved with a plurality of hole wall support assemblies (2), the plurality of hole wall support assemblies (2) are distributed along the axis direction of the anchor rod body (1), the hole wall support assemblies (2) are fixedly connected with the anchor rod body (1), the centers of the plurality of hole wall support assemblies (2) are penetrated and arranged by pouring pipes (3), and the pouring pipes (3) are rotatably connected with the plurality of hole wall support assemblies (2).

2. An anti-floating anchor reinforcement structure according to claim 1, characterized in that, The hole wall support assembly (2) comprises a support disc (21), a plurality of guard plates (22) are installed on the support disc (21), the guard plates (22) are arc-shaped plates, and the plurality of guard plates (22) are attached to the anchor rod vertical ribs (11) of the anchor rod body (1); The hole wall support assembly (2) further comprises a reinforcing disc (23), the reinforcing disc (23) is located above the support disc (21) and is sleeved on the pouring pipe (3), the reinforcing disc (23) is rotatably connected with the pouring pipe (3), an adjusting mechanism (25) is further installed on the support disc (21), a plurality of guide grooves (28) are further formed in the support disc (21), a top rod (26) is slidably arranged in the guide grooves (28), one end of the top rod (26) is attached to the adjusting mechanism (25), an active groove (4) is formed in the other end of the top rod (26), a limiting assembly (27) is installed in the active groove (4), and the limiting assembly (27) is hinged in the active groove (4).

3. An anti-floating anchor reinforcement structure according to claim 2, characterized in that, A dustproof pipe (24) is arranged between the reinforcing disc (23) and the support disc (21), and the dustproof pipe (24) is attached to the reinforcing disc (23) and the support disc (21).

4. An anti-floating anchor reinforcement structure according to claim 2, wherein The limiting assembly (27) comprises a limiting claw plate (271) and a claw tooth (272), the claw tooth (272) is located on the limiting claw plate (271) and is integrally arranged with the limiting claw plate (271), the limiting claw plate (271) is hinged in the active groove, and when the adjusting mechanism (25) is rotated by a certain angle, the top rod (26) can be pushed, and the top rod (26) can rotate the limiting assembly (27).

5. An anti-floating anchor reinforcement structure according to claim 2, wherein The adjusting mechanism (25) comprises an adjusting block (251), the adjusting block (251) is arranged on the support disc (21) and coaxially arranged with the support disc (21), the adjusting block (251) can rotate in the support disc (21), the shaft center of the adjusting block (251) is provided with a connecting groove (252), the pouring pipe (3) is penetratingly arranged in the shaft center of the adjusting block (251) and fixedly connected with the adjusting block (251), and the outer side of the connecting groove (252) is provided with a limiting arc-shaped groove (253) matched with the top rod (26), an adjusting straight groove (254) and a sliding-in groove (255).

6. An anti-float anchor reinforcement structure according to claim 2, wherein The inside of the reinforcing disc (23) is a hollow structure, the outside of the reinforcing disc (23) is provided with an annular rail (210), a plurality of support grooves (29) are formed on the side of the reinforcing disc (23) close to the plurality of protective plates (22), the plurality of support grooves (29) are in the same horizontal plane, the annular rail (210) is clamped in the plurality of support grooves (29), and the reinforcing disc (23) can rotate about the axis.

7. An anti-float anchor reinforcement structure according to claim 3, wherein The inside of the dustproof pipe (24) is a hollow structure, the inside of the dustproof pipe (24) is in communication with the inside of the support disc (21), and the bottom end of the dustproof pipe (24) can rotate on the upper surface of the support disc (21).

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