A pressure-dispersive anchoring device and method

Abstract

The present invention relates to the technical field of pressure-dispersed anchoring devices, and specifically to a pressure-dispersed anchoring device and method, comprising: an anchor sleeve, a steel wire bundle is arranged at the bottom of the anchor sleeve, installation grooves are arranged around the outer side of the steel wire bundle, expansion grooves are arranged on both sides of the installation groove, springs are arranged in the expansion grooves, and the outer side of the spring is connected to a limit card plate; the beneficial effect is: the pressure-dispersed anchoring device and method proposed by the present invention, when used under medium-hard surrounding rock conditions, the limit card plates on both sides of the installation groove are moved to shrink the limit card plates into the expansion grooves, and then the installation block is inserted into the installation groove, and then the limit card plates are released and moved, and the limit card plates are rebounded into the limit slots opened on the installation block by the tension of the spring, and the installation block is pre-fixed. When the installation blocks are all installed in all the installation grooves, the installation fixing ring of the anchor sleeve is passed.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure-dispersed anchoring devices, and specifically provides a pressure-dispersed anchoring device and method. Background Art

[0002] The anchoring of the cable bolt penetrates a weak surface in a certain direction and extends deep into the intact rock mass through drilling, inserts a prestressed cable bolt, and then consolidates it with an anchoring agent to form a structure with a certain tensile capacity. The bonding force between the anchoring part of the cable bolt and the rock mass is the most important performance parameter of the cable bolt. The cable bolt structure generally consists of three parts: an internal anchor head, a cable bolt body, and an external anchor head. The internal anchor head, also known as the anchoring section or anchor root, is the foundation for the cable bolt to provide prestress in the rock mass. According to its structural form, it is divided into two categories: mechanical type and cemented type. The cemented type is further divided into two categories: mortar cemented and resin cemented. The mortar type is further divided into secondary grouting and primary grouting types.

[0003] In the prior art, the publication number is: CN202122950131.4, which discloses a pressure-dispersed high-strength anchoring force cable bolt assembly, including: a cable bolt disc sleeve plate, an internal sliding groove is arranged on the inner wall side of the cable bolt disc sleeve plate, a cable bolt head sleeve is arranged in the internal sliding groove through the sleeve plate, the cable bolt head sleeve is movably connected with the cable bolt disc sleeve plate, a dust plate is arranged on the front surface of the cable bolt head sleeve, a plurality of digging blades are arranged on the outer surface of the cable bolt head sleeve, the cable bolt head sleeve can rotate 360° on the inner wall side of the cable bolt disc sleeve plate through the movable connection of the sleeve plate and the internal sliding groove, a plurality of first reserved openings are arranged on the surface of the cable bolt disc sleeve plate, and a plurality of first nut sleeves are arranged on the back surface of the cable bolt disc sleeve plate. The pressure-dispersed high-strength anchoring force cable bolt assembly provided by the invention has a reasonable structure, high flexibility of the anchor head, and is provided with corresponding rotating digging blades, which can improve the stability during pipe burying and effectively reduce the wear of the cable bolt during use.

[0004] However, in actual construction of the above patent, when the cable bolt head sleeve drives the digging blade to dig a hole and drill a hole, if the surrounding rock of the construction site is relatively soft, it can dig a hole and drill a hole. However, when the surrounding rock is medium-hard or above, it is not sufficient to carry out the hole-digging operation only through the digging blade. Usually, it is necessary to use a drill to dig a hole in advance before the cable bolt can be installed. Summary of the Invention

[0005] The purpose of the present invention is to provide a pressure-dispersed anchoring device and method to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: a cable anchor sleeve plate, a steel wire bundle is provided at the bottom of the cable anchor sleeve plate, mounting grooves are formed around the outer side of the steel wire bundle, telescopic grooves are formed on both sides of the mounting grooves, springs are arranged in the telescopic grooves, and limiting clamping plates are connected to the outer sides of the springs; and a mounting block, a crushing block is connected to the outer side of the mounting block, and a plurality of groups of crushing teeth are arranged around the crushing block; a fixing ring, and a plurality of groups of limiting insertion rods are arranged on the top of the fixing ring.

[0007] Preferably, steel wire bundles are connected around the top of the cable anchor sleeve plate, and a plurality of groups of reserved holes are formed in the cable anchor sleeve plate at the same time, so that the cable anchor sleeve plate can be used to install the steel wire bundles. A plurality of groups of auxiliary sleeve plates are sleeved on the steel wire bundles in sections, and the auxiliary sleeve plates assist in supporting the cable anchor sleeve plate, and a plurality of groups of reserved holes are formed in the auxiliary sleeve plates at the same time.

[0008] Preferably, an anchor sleeve is arranged at the outer end of the steel wire bundle, and tensile tests can be carried out through the anchor sleeve. Through holes are formed in the middle of the cable anchor sleeve plate, the auxiliary sleeve plate, the anchor sleeve and the cable anchor head, and a grouting sleeve can be inserted into the through holes, so that the grouting sleeve can grout into the hole.

[0009] Preferably, a plurality of groups of hole-digging cutters are arranged on the surface of the cable anchor head, and the cable anchor head can dig pits in a construction site with relatively soft soil through the hole-digging cutters.

[0010] Preferably, the mounting block can be inserted into the mounting grooves formed around the outer side of the cable anchor head to enhance the hole-digging ability.

[0011] Preferably, limiting slots are formed in the mounting block, and the springs in the telescopic grooves on both sides of the mounting groove can pop the limiting clamping plates into the limiting slots through tension to fix the mounting block in the fixed mounting groove.

[0012] Preferably, a plurality of groups of threaded holes are formed around the bottom of the cable anchor head, and a plurality of groups of through holes are formed in the fixing ring at the same time. The through holes and the threaded holes correspond to each other one by one. By inserting fixing screws into the overlapping through holes and threaded holes, the fixing ring can be fixed to the bottom of the cable anchor head.

[0013] Preferably, through holes are formed at the bottoms of the limiting clamping plates and the mounting block at the same time, and the limiting insertion rods arranged on the top of the fixing ring can be inserted into the through holes to fix the limiting clamping plates in the limiting slots formed in the mounting block, so as to fix the mounting block in the mounting groove.

[0014] A construction method of a pressure-dispersed anchoring device includes the following steps:

[0015] Step 1: When used in soft surrounding rock, the hole digging tool set around the anchor sleeve head at the bottom of the anchor sleeve plate starts to mechanically dig holes in the set direction, and the auxiliary sleeve plate connected to the top of the anchor sleeve plate is sent into the hole. The steel wire bundle is stabilized by the auxiliary sleeve plate to prevent the steel wire bundle from being skewed. When the anchor sleeve plate reaches the predetermined location, the hole is grouting through the anchor sleeve plate, the auxiliary sleeve plate, and the grouting sleeve in the middle of the anchor sleeve, and the grouting sleeve is slowly pulled out. After the grouting is completed, wait for the cement slurry to solidify, and then stretch the anchor sleeve to perform the tensile test on the anchor cable;

[0016] Step 2: When used in medium-hard or above surrounding rock, the limit clamps on both sides of the installation slot are moved to shrink the limit clamps into the telescopic slots, and then the installation block is inserted into the installation slot. The limit clamps are released and moved. The limit clamps are rebounded into the limit slots opened on the installation block by the tension of the spring to pre-fix the installation block. When all the installation blocks are installed in all the installation slots, the installation fixing ring of the anchor cable sleeve is inserted, and the limit plug rod set on the top of the fixing ring is inserted into the through holes opened at the bottom of the installation block and the limit clamp, so as to pre-fix the installation block with the limit clamp.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes a pressure dispersion anchoring device and method. When used in areas with hard texture or containing a large amount of stones, the limit card plates on both sides of the installation groove are moved to shrink the limit card plates into the telescopic grooves, and then the installation block is inserted into the installation groove. The limit card plates are then released and moved. The limit card plates are rebounded into the limit slots provided on the installation block by the tension of the springs to pre-fix the installation block. When all the installation blocks are installed in all the installation grooves, the installation fixing rings are placed on the anchor cable sleeves, and the limit card plates are set on the top of the fixing rings. The insert rod is inserted into the through holes opened at the bottom of the mounting block and the limit clamp plate, and the limit clamp plate is pre-fixed on the mounting block to prevent the spring from driving the limit clamp plate to shrink, causing the mounting block to fall from the mounting groove; then, the fixing screw is inserted into the overlapping part of the threaded holes opened at the bottom of the fixing ring and the anchor cable sleeve to fix the fixing ring to the bottom of the anchor cable sleeve; at this time, when the anchor cable sleeve drives the digging tool to dig a hole, the crushing block connected to the outside of the mounting block can crush the stone in the hole through the crushing teeth to prevent the stone from obstructing the normal digging of the digging tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the anchor cable sleeve of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the anchor cable sleeve of the present invention;

[0022] Figure 4 It is a schematic top view structure diagram of the anchor cable socket head of the present invention;

[0023] Figure 5 It is a schematic sectional structure diagram of the telescopic groove of the present invention;

[0024] Figure 6 It is a schematic three-dimensional structure diagram of the fixing ring of the present invention;

[0025] Figure 7 It is a schematic three-dimensional structure diagram of the broken block of the present invention.

[0026] In the figure: anchor cable socket plate 1, steel wire bundle 2, auxiliary socket plate 3, reserved hole 4, anchor socket 5, grouting sleeve 6, anchor cable socket head 7, installation groove 8, telescopic groove 9, spring 10, limit clamping plate 11, installation block 12, broken block 13, broken teeth 14, limit slot 15, through hole 16, fixing ring 17, fixing screw 18, limit insertion rod 19, threaded hole 20, hole-digging tool 21. Specific embodiments

[0027] In order to clearly and completely describe the purpose and technical solution of the present invention, and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 to 7, the present invention provides a technical solution: a cable anchor sleeve plate 1, a steel wire bundle 2 is arranged at the bottom of the cable anchor sleeve plate 1, mounting grooves 8 are formed around the outer side of the steel wire bundle 2, telescopic grooves 9 are formed on both sides of the mounting grooves 8, springs 10 are arranged in the telescopic grooves 9, and limiting clamping plates 11 are connected to the outer sides of the springs 10; and a mounting block 12, a crushing block 13 is connected to the outer side of the mounting block 12, and multiple groups of crushing teeth 14 are arranged around the crushing block 13; a fixing ring 17, multiple groups of limiting insertion rods 19 are arranged at the top of the fixing ring 17; steel wire bundles 2 are connected to the periphery of the top of the cable anchor sleeve plate 1, and multiple groups of reserved holes 4 are formed in the cable anchor sleeve plate 1 at the same time, so that the cable anchor sleeve plate 1 can be used for installing the steel wire bundles 2. Multiple groups of auxiliary sleeve plates 3 are sleeved on the steel wire bundles 2 in sections, the auxiliary sleeve plates 3 assist in supporting the cable anchor sleeve plate 1, and multiple groups of reserved holes 4 are formed in the auxiliary sleeve plates 3 at the same time; an anchor sleeve 5 is arranged at the outer end of the steel wire bundle 2, and tensile tests can be carried out through the anchor sleeve 5. Through holes are formed in the middle of the cable anchor sleeve plate 1, the auxiliary sleeve plate 3, the anchor sleeve 5 and the cable anchor head 7, and a grouting sleeve 6 can be inserted into the through holes, so that the grouting sleeve 6 can grout into the hole; multiple groups of hole-digging cutters 21 are arranged on the surface of the cable anchor head 7, and the cable anchor head 7 can dig pits in a construction site with relatively soft soil through the hole-digging cutters 21; the mounting block 12 can be inserted into the mounting groove 8 formed around the outer side of the cable anchor head 7 to enhance the hole-digging ability; a limiting slot 15 is formed in the mounting block 12, and the springs 10 in the telescopic grooves 9 on both sides of the mounting groove 8 can eject the limiting clamping plates 11 into the limiting slot 15 through tension to fix the mounting block 12 in the fixed mounting groove 8; multiple groups of threaded holes 20 are formed around the bottom of the cable anchor head 7, multiple groups of through holes are formed in the fixing ring 17 at the same time, and the through holes correspond to the threaded holes 20 one by one. By inserting fixing screws 18 into the overlapping through holes and threaded holes 20, the fixing ring 17 can be fixed to the bottom of the cable anchor head 7; through holes 16 are formed in the bottoms of the limiting clamping plates 11 and the mounting block 12 at the same time, and the limiting insertion rods 19 arranged at the top of the fixing ring 17 can be inserted into the through holes 16 to fix the limiting clamping plates 11 in the limiting slots 15 formed in the mounting block 12, so as to fix the mounting block 12 in the mounting groove 8.

[0029] In actual use, when it is used in soft soil areas, the hole digging tool 21 arranged around the anchor cable sleeve 7 at the bottom of the anchor cable sleeve 1 starts to mechanically dig a hole in the set direction, and the auxiliary sleeve 3 connected to the top of the anchor cable sleeve 1 is sent into the hole, and the wire bundle 2 is stabilized by the auxiliary sleeve 3 to prevent the wire bundle 2 from being skewed. When the anchor cable sleeve 1 reaches the predetermined location, the hole is grouting through the anchor cable sleeve 1, the auxiliary sleeve 3, and the grouting sleeve 6 in the middle of the anchor sleeve 5, and the grouting sleeve 6 is slowly pulled out. After the grouting is completed, wait for the cement slurry to solidify, and then stretch the anchor sleeve 5 to perform a tensile test on the anchor cable; when it is used in areas with hard texture or containing a large amount of stones, the limit clamps 11 on both sides of the installation groove 8 are toggled to shrink the limit clamps 11 into the telescopic groove 9, and then the installation block 12 is inserted into the installation groove 8, and then the limit clamps 11 are toggled, and the limit clamps 11 are released through the spring 1 0 tension springs into the limit slot 15 opened on the mounting block 12 to pre-fix the mounting block 12. When all the mounting grooves 8 have been fully installed in the mounting blocks 12, the fixing ring 17 of the anchor cable sleeve 1 is installed, and the limiting plug rod 19 set on the top of the fixing ring 17 is inserted into the through hole 16 opened at the bottom of the fixing block 12 and the limiting card plate 11 to fix the pre-fixation of the mounting block 12 by the limiting card plate 11 to prevent the spring 10 from driving the limiting card plate 11 to shrink, causing the mounting block 12 to fall from the mounting groove 8. Then, the fixing screw 18 is inserted into the overlapping part of the threaded hole 20 opened at the bottom of the fixing ring 17 and the anchor cable sleeve 1 to fix the fixing ring 17 to the bottom of the anchor cable sleeve 1. At this time, when the anchor cable sleeve head 7 drives the digging tool 21 to dig a hole, the crushing block 13 connected to the outside of the mounting block 12 can crush the stone in the hole through the crushing teeth 14 to prevent the stone from obstructing the normal digging of the digging tool 21.

[0030] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A pressure-dispersive anchoring device, characterized in that: Comprising: A cable anchor sleeve plate (1), a steel wire bundle (2) is fixedly connected to the top of the cable anchor sleeve plate (1), mounting grooves (8) are formed around the outer side of the steel wire bundle (2), telescopic grooves (9) are formed on both sides of the mounting groove (8), a spring (10) is fixedly connected to the inner wall of the telescopic groove (9), and a limit clamping plate (11) is connected to the outer side of the spring (10); and A mounting block (12), the mounting block (12) corresponds to the mounting groove (8), the mounting block (12) is inserted into the telescopic groove (9), a crushing block (13) is connected to the outer side of the mounting block (12), and multiple groups of crushing teeth (14) for crushing stones are arranged around the crushing block (13); A fixing ring (17), the fixing ring (17) is fixedly mounted at the bottom of the cable anchor sleeve plate (1) through fixing screws (18) arranged at the bottom of (1), multiple groups of limit insertion rods (19) are fixedly mounted on the top of the fixing ring (17), and the limit insertion rods (19) are inserted into through holes (16) formed at the bottom of the mounting block (12); The top of the cable anchor sleeve plate (1) is connected with a steel wire bundle (2) around it, multiple groups of reserved holes (4) are formed in the cable anchor sleeve plate (1) at the same time, so that the cable anchor sleeve plate (1) can be used for installing the steel wire bundle (2), multiple groups of auxiliary sleeve plates (3) are sleeved on the steel wire bundle (2) in sections, the auxiliary sleeve plates (3) assist in supporting the cable anchor sleeve plate (1), and multiple groups of reserved holes (4) are formed in the auxiliary sleeve plates (3) at the same time; An anchor sleeve (5) is arranged at the outer end of the steel wire bundle (2), and tensile tests can be carried out through the anchor sleeve (5). Through holes are formed in the middle of the cable anchor sleeve plate (1), the auxiliary sleeve plate (3), the anchor sleeve (5), and the cable anchor head (7), and a grouting sleeve (6) can be inserted into the through holes; Multiple groups of hole-digging cutters (21) are arranged on the surface of the cable anchor head (7), and the cable anchor head (7) can dig pits in a construction site with relatively soft soil through the hole-digging cutters (21); The mounting block (12) can be inserted into the mounting groove (8) formed around the outer side of the cable anchor head (7); A limit slot (15) is formed in the mounting block (12), and the spring (10) in the telescopic grooves (9) on both sides of the mounting groove (8) can pop the limit clamping plate (11) into the limit slot (15) through tension.

2. The pressure-dispersive anchoring device according to claim 1, wherein: Multiple groups of threaded holes (20) are formed around the bottom of the cable anchor head (7), and multiple groups of through holes are formed in the fixing ring (17) at the same time, and the through holes correspond to the threaded holes (20) one by one.

3. The pressure-dispersive anchoring device according to claim 2, wherein: Through holes (16) are formed at the bottom of the limit clamping plate (11) and the mounting block (12) at the same time, and the limit insertion rods (19) arranged on the top of the fixing ring (17) can be inserted into the through holes (16).

4. A construction method of a pressure-dispersive anchoring device as described in any one of claims 1-3, characterized in that: Including the following steps: Step 1: When used in soft soil areas, the hole digging tool (21) arranged around the anchor cable sleeve head (7) at the bottom of the anchor cable sleeve (1) starts to mechanically dig a hole in a set direction, and the auxiliary sleeve (3) connected to the top of the anchor cable sleeve (1) is sent into the hole. The steel wire bundle (2) is stabilized by the auxiliary sleeve (3) to prevent the steel wire bundle (2) from being skewed. When the anchor cable sleeve (1) reaches the predetermined location, the hole is grouted by the grouting sleeve (6) in the middle of the anchor cable sleeve (1), the auxiliary sleeve (3) and the anchor sleeve (5), and the grouting sleeve (6) is slowly withdrawn. After the grouting is completed, the cement slurry is solidified, and then the anchor sleeve (5) is stretched to perform a tensile test on the anchor cable; Step 2: When the device is used in an area with a hard texture or a large amount of stones, the limiting card plates (11) on both sides of the installation groove (8) are moved to shrink the limiting card plates (11) into the telescopic groove (9), and then the installation block (12) is inserted into the installation groove (8). The limiting card plates (11) are released and moved. The limiting card plates (11) are rebounded into the limiting slots (15) provided on the installation block (12) by the tension of the spring (10), and the installation block (12) is pre-fixed. When all the installation blocks (12) are installed in all the installation grooves (8), the fixing ring (17) is installed on the anchor cable sleeve (1), and the limiting plug rod (19) provided on the top of the fixing ring (17) is inserted into the through holes (16) provided on the bottom of the installation block (12) and the limiting card plates (11), so that the limiting card plates (11) are pre-fixed to the installation block (12).

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