Pressure dispersion type anchoring device and method

Abstract

The invention relates to the technical field of pressure dispersion type anchoring devices, in particular to a pressure dispersion type anchoring device and method.The pressure dispersion type anchoring device comprises an anchor cable sleeve plate, a steel wire bundle is arranged at the bottom of the anchor cable sleeve plate, a mounting groove is formed in the periphery of the outer side of the steel wire bundle, telescopic grooves are formed in the two sides of the mounting groove, and springs are arranged in the telescopic grooves; the outer side of the spring is connected with a limiting clamping plate; the pressure dispersion type anchoring device and method have the beneficial effects that when the pressure dispersion type anchoring device and method are used under the medium-hard surrounding rock condition, limiting clamping plates on the two sides of a mounting groove are shifted to be retracted into telescopic grooves, then a mounting block is inserted into the mounting groove, then the limiting clamping plates are loosened and shifted, and the pressure dispersion type anchoring device and method are used for anchoring the medium-hard surrounding rock; the limiting clamping plate is bounced into the limiting inserting groove formed in the mounting block through the tension of the spring, the mounting block is pre-fixed, and after all the mounting blocks are mounted in all the mounting grooves, the fixing ring is mounted on the anchor cable sleeve plate.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure dispersion type anchoring devices, and in particular to a pressure dispersion type anchoring device and method. Background Art

[0002] The anchoring of the anchor cable is to penetrate the weak surface into the intact rock mass by drilling in a certain direction, insert the prestressed anchor cable, and then consolidate it with an anchoring agent to form a structure with a certain tensile strength. The bonding force between the anchoring part of the anchor cable and the rock mass is the most important performance parameter of the anchor cable. The anchor cable structure is generally composed of three parts: the amplitude anchor head, the anchor cable body and the outer anchor head. The inner anchor head, also known as the anchor section or anchor root, is the foundation for the anchor cable to provide prestress in the rock mass. According to its structural form, it is divided into two categories: mechanical and bonding. The bonding type is further divided into mortar bonding and resin bonding. The mortar type is further divided into secondary grouting and primary grouting.

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

[0004] However, in actual construction of the above patent, when the anchor cable head covers drive the digging blades to dig holes and drill holes, if the surrounding rock of the construction site is relatively soft, it is possible to dig holes and drill holes. However, when the surrounding rock is medium-hard or above, the digging blades alone are not sufficient to perform the digging operation. It is often necessary to use a drilling rig to dig holes in advance before installing the anchor cables. Summary of the invention

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

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anchor cable sleeve, a steel wire bundle is arranged at the bottom of the anchor cable sleeve, installation grooves are opened around the outer side of the steel wire bundle, expansion grooves are opened on both sides of the installation groove, a spring is arranged in the expansion groove, and the outer side of the spring is connected to a limiting clamping plate; and a mounting block, the outer side of the mounting block is connected to a crushing block, and a plurality of groups of crushing teeth are arranged around the crushing block; a fixing ring, a plurality of groups of limiting plug rods are arranged on the top of the fixing ring.

[0007] Preferably, the top of the anchor sleeve is connected to the steel wire bundle on all sides, and a plurality of groups of reserved holes are provided on the anchor sleeve, so that the steel wire bundle can be installed on the anchor sleeve, and a plurality of groups of auxiliary sleeves are segmentedly provided on the steel wire bundle, and the auxiliary sleeves provide auxiliary support to the anchor sleeve, and a plurality of groups of reserved holes are provided on the auxiliary sleeve.

[0008] Preferably, an anchor sleeve is provided at the outer end of the steel wire bundle, through which a tensile test can be carried out, and a through hole is opened in the middle of the anchor sleeve plate, auxiliary sleeve plate, anchor sleeve and anchor sleeve head, into which a grouting sleeve can be inserted to allow the grouting sleeve to grout the hole.

[0009] Preferably, a plurality of groups of hole-digging tools are provided on the surface of the anchor cable sleeve at the same time, and the anchor cable sleeve can dig holes in construction sites with relatively soft soil through the hole-digging tools.

[0010] Preferably, the mounting block can be inserted into the mounting grooves provided around the outer side of the anchor cable sleeve to enhance the hole digging capability.

[0011] Preferably, a limiting slot is provided on the mounting block, and the springs in the telescopic slots on both sides of the mounting slot can bounce the limiting card into the limiting slot through tension, thereby fixing the mounting block in the fixing slot.

[0012] Preferably, a plurality of threaded holes are provided around the bottom of the anchor sleeve, and a plurality of through holes are provided on the fixing ring at the same time. The through holes correspond to the threaded holes one by one, and fixing screws are inserted into the overlapping through holes and the threaded holes to fix the fixing ring to the bottom of the anchor sleeve.

[0013] Preferably, the bottom of the limit card plate and the mounting block are both provided with through holes, and the limit rod arranged on the top of the fixing ring can be inserted into the through hole to fix the limit card plate in the limit slot opened in the mounting block, thereby fixing the mounting block in the mounting groove.

[0014] A construction method of a pressure dispersion anchoring device comprises the following steps: 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; 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.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 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

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the anchor cable sleeve of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the anchor cable sleeve of the present invention; Figure 4 It is a schematic diagram of the top view of the structure of the anchor cable sleeve of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the telescopic groove of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing ring of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the broken block of the present invention.

[0017] In the figure: anchor cable sleeve 1, wire bundle 2, auxiliary sleeve 3, reserved hole 4, anchor sleeve 5, grouting sleeve 6, anchor cable sleeve head 7, mounting groove 8, telescopic groove 9, spring 10, limit clamping plate 11, mounting block 12, crushing block 13, crushing tooth 14, limit slot 15, through hole 16, fixing ring 17, fixing screw 18, limit rod 19, threaded hole 20, digging tool 21. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail 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, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 7The present invention provides a technical solution: an anchor cable sleeve 1, a steel wire bundle 2 is arranged at the bottom of the anchor cable sleeve 1, a mounting groove 8 is opened around the outer side of the steel wire bundle 2, telescopic grooves 9 are opened on both sides of the mounting groove 8, a spring 10 is arranged in the telescopic groove 9, and the outer side of the spring 10 is connected to a limit card plate 11; and a mounting block 12, the outer side of the mounting block 12 is connected to a crushing block 13, and a plurality of groups of crushing teeth 14 are arranged around the crushing block 13; a fixing ring 17, and a plurality of groups of limit plug rods 19 are arranged on the top of the fixing ring 17; the top of the anchor cable sleeve 1 is connected around The steel wire bundle 2 is provided with a plurality of groups of reserved holes 4 on the anchor cable sleeve 1, so that the anchor cable sleeve 1 can be installed on the steel wire bundle 2. The steel wire bundle 2 is provided with a plurality of groups of auxiliary sleeves 3 in sections, and the auxiliary sleeves 3 provide auxiliary support for the anchor cable sleeve 1. The auxiliary sleeves 3 are provided with a plurality of groups of reserved holes 4 at the same time; an anchor sleeve 5 is provided at the outer end of the steel wire bundle 2, and a tensile test can be performed through the anchor sleeve 5. A through hole is provided in the middle of the anchor cable sleeve 1, the auxiliary sleeve 3, the anchor sleeve 5, and the anchor cable sleeve head 7, and a grouting sleeve 6 can be inserted in the through hole, so that the grouting sleeve 6 can be connected to the anchor cable sleeve 7. Grouting is performed in the hole; a plurality of groups of hole digging tools 21 are arranged on the surface of the anchor cable sleeve 7 at the same time, and the anchor cable sleeve 7 can dig holes in construction sites with relatively soft soil through the hole digging tools 21; the mounting block 12 can be inserted into the mounting groove 8 provided around the outer side of the anchor cable sleeve 7 to enhance the hole digging ability; a limited slot 15 is provided on the mounting block 12, and the spring 10 in the telescopic slot 9 on both sides of the mounting slot 8 can bounce the limited card plate 11 into the limited slot 15 through tension, so as to fix the mounting block 12 in the mounting slot 8; the bottom of the anchor cable sleeve 7 There are multiple groups of threaded holes 20 around, and there are multiple groups of through holes on the fixing ring 17. The through holes correspond to the threaded holes 20 one by one. The fixing screws 18 are inserted into the overlapping through holes and the threaded holes 20, so that the fixing ring 17 can be fixed to the bottom of the anchor cable sleeve 7; through holes 16 are simultaneously provided at the bottom of the limiting clamping plate 11 and the mounting block 12, and the limiting plug rod 19 set on the top of the fixing ring 17 can be inserted into the through hole 16 to fix the limiting clamping plate 11 in the limiting slot 15 opened on the mounting block 12, thereby fixing the mounting block 12 in the mounting groove 8.

[0020] 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.

[0021] 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-dispersed anchoring device, characterized in that: include: An anchor cable sleeve (1), the top of which is fixedly connected to a steel wire bundle (2), the outer side of the steel wire bundle (2) is provided with a mounting groove (8), both sides of the mounting groove (8) are provided with telescopic grooves (9), the inner wall of the telescopic groove (9) is fixedly connected to a spring (10), the outer side of the spring (10) is connected to a limit clamping plate (11); 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), the outer side of the mounting block (12) is connected to a crushing block (13), and the crushing block (13) is provided with a plurality of groups of crushing teeth (14) for crushing stones around the crushing block (13); A fixing ring (17) is fixedly mounted on the bottom of the anchor cable sleeve (1) by means of fixing screws (18) arranged at the bottom of (1), and a plurality of groups of limit rods (19) are fixedly mounted on the top of the fixing ring (17), and the limit rods (19) are inserted into through holes (16) opened at the bottom of the mounting block (12).

2. A pressure dispersing anchoring device according to claim 1, characterized in that: The top of the anchor cable sleeve (1) is connected to the steel wire bundle (2) on all sides, and the anchor cable sleeve (1) is provided with a plurality of groups of reserved holes (4) so ​​that the anchor cable sleeve (1) can be installed with the steel wire bundle (2). The steel wire bundle (2) is provided with a plurality of groups of auxiliary sleeves (3) in sections, and the auxiliary sleeves (3) provide auxiliary support for the anchor cable sleeve (1). The auxiliary sleeves (3) are provided with a plurality of groups of reserved holes (4) on the auxiliary sleeves (3).

3. A pressure dispersing anchoring device according to claim 2, characterized in that: An anchor sleeve (5) is provided at the outer end of the steel wire bundle (2), and a tensile test can be performed through the anchor sleeve (5). A through hole is provided in the middle of the anchor sleeve plate (1), the auxiliary sleeve plate (3), the anchor sleeve (5), and the anchor sleeve head (7), and a grouting sleeve (6) can be inserted into the through hole.

4. A pressure dispersing anchoring device according to claim 3, characterized in that: The surface of the anchor cable sleeve (7) is provided with a plurality of groups of hole digging tools (21), and the anchor cable sleeve (7) can dig holes in construction sites with relatively soft soil through the hole digging tools (21).

5. A pressure dispersing anchoring device according to claim 4, characterized in that: The mounting block (12) can be inserted into a mounting groove (8) provided around the outer side of the anchor cable sleeve (7).

6. A pressure dispersing anchoring device according to claim 5, characterized in that: The mounting block (12) is provided with a limit slot (15), and the springs (10) in the telescopic slots (9) on both sides of the mounting slot (8) can spring the limit clamping plate (11) into the limit slot (15) through tension.

7. A pressure dispersing anchoring device according to claim 6, characterized in that: The bottom of the anchor cable sleeve (7) is provided with a plurality of threaded holes (20) around its periphery, and the fixing ring (17) is provided with a plurality of through holes at the same time, and the through holes correspond to the threaded holes (20) one by one.

8. A pressure dispersing anchoring device according to claim 7, characterized in that: The bottoms of the limiting clamping plate (11) and the mounting block (12) are both provided with through holes (16), and the limiting plug rod (19) arranged on the top of the fixing ring (17) can be inserted into the through hole (16).

9. A construction method of a pressure dispersion anchoring device according to any one of claims 1 to 8, characterized in that: The following steps are involved: 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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