CN110617094B - Damping positioning composite grouting anchor rod capable of strengthening anchoring effect - Google Patents
Damping positioning composite grouting anchor rod capable of strengthening anchoring effect Download PDFInfo
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- CN110617094B CN110617094B CN201910921929.0A CN201910921929A CN110617094B CN 110617094 B CN110617094 B CN 110617094B CN 201910921929 A CN201910921929 A CN 201910921929A CN 110617094 B CN110617094 B CN 110617094B
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- 230000000694 effects Effects 0.000 title claims abstract description 16
- 238000004873 anchoring Methods 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000013016 damping Methods 0.000 title claims abstract description 9
- 238000005728 strengthening Methods 0.000 title claims abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000002787 reinforcement Effects 0.000 claims description 46
- 230000003014 reinforcing effect Effects 0.000 claims description 36
- 239000004570 mortar (masonry) Substances 0.000 claims description 15
- 230000035939 shock Effects 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008093 supporting effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Abstract
The invention provides a damping and positioning composite grouting anchor rod capable of strengthening an anchoring effect, which comprises a plurality of positioning devices and a plurality of drill rods, wherein two ends of each positioning device are connected with the drill rods; the positioning device comprises an outer sleeve, an inner sleeve sleeved in the outer sleeve and a plurality of elastic pieces; the side wall of the outer sleeve is provided with a plurality of abdication holes in a penetrating way along the circumferential direction, and relative displacement along the extending direction of the outer sleeve is arranged between the outer sleeve and the inner sleeve, so that the outer sleeve is provided with a first position and a second position which are opposite to the inner sleeve; the elastic pieces are arranged on the inner sleeve and have a compression state and a recovery state, when the outer sleeve is positioned at the first position, the elastic pieces are positioned at the compression state, when the outer sleeve is positioned at the second position, the elastic pieces are in one-to-one opposite to the plurality of abdicating holes, and the elastic pieces penetrate through the abdicating holes and are positioned at the recovery state and are used for being propped against the wall of the drilling hole. The technical scheme provided by the invention aims at adjusting the anchor rod to the middle position of the drilling hole, so that slurry around the anchor rod is uniformly distributed, and the anchor rod support is more effective.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering protection, in particular to a damping positioning composite grouting anchor rod capable of strengthening an anchoring effect.
Background
In geotechnical engineering, an anchoring technology is an important technology and is widely applied to reinforcement of a geotechnical body. In the acting process, the anchoring force is provided, so that the dispersed rock-soil body can keep a relatively complete state, and the stability of the rock-soil body structure is ensured. In addition, the anchoring technology has the characteristics of safety, high efficiency and economy in support, and can effectively prevent deformation and collapse damage of the rock-soil body. The anchor bolt support is one of the most effective support modes in the geotechnical engineering field by virtue of the excellent characteristics.
However, in the engineering application field, on one hand, the rock-soil mass is broken to cause landslide accidents to easily occur in the side slope, and in the process of using the anchor rod for supporting, the connection effect of the anchor rod in the supporting process becomes weaker and weaker due to the broken rock-soil mass, so that the rock-soil mass needs to be formed into a whole, and the stability of the anchor rod-rock-soil mass structure is ensured; on the other hand, in the state that the anchor bolt support is kept stable, the anchor bolt is influenced by various excavation disturbances, so that the anchor bolt is loosened, the support effect is influenced, and therefore the anchor bolt is required to have certain adjusting capability for coping with various stress disturbances. In addition, the stock is in the support in-process, if do not take measures, can sink to the drilling bottom because of the action of gravity to make the thick liquids can not keep fine connection with the stock, the stock should be can effectually play in the drilling, need make the stock keep in central point in getting into the drilling, just so slip casting in-process can make stock around the thick liquids distribute evenly, make the anchor support more effective.
Disclosure of Invention
In view of this, the embodiment of the invention provides a damping positioning composite grouting anchor rod capable of enhancing the anchoring effect, which aims at adjusting the anchor rod to the middle position of a drilling hole, so that slurry around the anchor rod is uniformly distributed, and the anchor rod support is more effective.
The embodiment of the invention provides a damping and positioning composite grouting anchor rod capable of strengthening an anchoring effect, which comprises a plurality of positioning devices and a plurality of drill rods, wherein two ends of each positioning device are used for being connected with the drill rods to form an anchor rod body, and a plurality of grouting holes are formed in the side wall of the anchor rod body in a penetrating manner so as to enable mortar in the anchor rod body to pass through;
The positioning device comprises an outer sleeve, an inner sleeve sleeved in the outer sleeve and a plurality of elastic pieces, one end of the outer sleeve, which is far away from the inner sleeve, is used for being connected with the adjacent drill rod, and one end of the inner sleeve, which is far away from the outer sleeve, is used for being connected with the adjacent drill rod; the side wall of the outer sleeve is provided with a plurality of abdication holes in a penetrating way along the circumferential direction, and relative displacement along the extending direction of the outer sleeve is arranged between the outer sleeve and the inner sleeve, so that the outer sleeve is provided with a first position and a second position which are opposite to the inner sleeve;
The elastic pieces are circumferentially distributed at intervals along the inner sleeve, extend radially along the inner sleeve and are arranged on the inner sleeve, the elastic pieces are in a compression state and a recovery state, when the outer sleeve is located at the first position, the elastic pieces are located in the compression state and located between the outer side wall of the inner sleeve and the inner side wall of the outer sleeve, when the outer sleeve is located at the second position, the elastic pieces are in one-to-one opposite to the yielding holes, and the elastic pieces penetrate through the yielding holes and are located in the recovery state and are used for being in butt joint with the wall of a drilling hole.
Further, the inner sleeve further comprises a fixed block, wherein the fixed block is positioned in the inner sleeve; the position of the inner sleeve, which is opposite to the fixed block, is provided with a plurality of through holes in a penetrating way, one end of the elastic piece is positioned on the inner sleeve and connected with the fixed block, and the other end of the elastic piece extends out of the inner sleeve through the through holes;
When the elastic piece is in a compression state, the elastic piece is abutted to the inner side wall of the outer sleeve, and when the elastic piece is in a recovery state, the through holes are in one-to-one correspondence with the yielding holes.
Further, the elastic piece comprises a spring and a fixed rod; the fixed rod radially extends along the inner sleeve, one end of the fixed rod is positioned in the inner sleeve and connected with the fixed block through a spring, and the other end of the fixed rod penetrates through the through hole and extends out of the inner sleeve;
When the elastic piece is in a compression state, the fixed rod is abutted with the inner side wall of the outer sleeve, and when the elastic piece is in a recovery state, the fixed rod passes through the abdication hole and is abutted with the side wall of the drilling hole.
Further, the fixing rod is far away from one end of the spring and is bent towards two sides to form a fitting portion, so that the fixing rod is in a T-shaped arrangement, and the fitting portion is in an arc-shaped arrangement to be matched with the side wall of the drilling hole.
Further, one end of the inner sleeve is connected with one end of the outer sleeve, which is close to the end of the inner sleeve, through a connecting spring.
Further, the inner sleeve is close to the outer protruding portion of one end lateral wall of the outer sleeve outwards, the inner side wall of the outer sleeve inwards protrudes to form an annular inner protruding portion, the annular inner protruding portion is located between the first annular outer protruding portion and one end of the inner sleeve away from the outer sleeve, and the first annular outer protruding portion is matched with the annular inner protruding portion so as to limit the relative position of the inner sleeve and the outer sleeve.
Further, the outer side wall of one end of the inner sleeve far away from the outer sleeve outwards protrudes to form a second annular outer part, and the second annular outer part is matched with one end of the outer sleeve close to the inner sleeve so as to limit the relative position of the inner sleeve and the outer sleeve.
Further, the anchor rod body further comprises a plurality of reinforcing devices, wherein the reinforcing devices comprise reinforcing sleeves and reinforcing members, two ends of each reinforcing sleeve are used for being connected with the drill rod, and the grouting holes are formed in the side wall of each reinforcing sleeve;
The side wall of the reinforcing sleeve is provided with a plurality of through holes in a penetrating way at intervals along the circumferential direction, the reinforcing member is movably arranged on the side wall of the through holes, and the reinforcing member is provided with an initial position positioned in the reinforcing sleeve and a reinforcing position with one end penetrating through the through holes and positioned outside the reinforcing sleeve; the reinforcement is pressed by the mortar in the reinforcement sleeve to move from the initial position to the reinforcement position.
Further, the reinforcement includes the base plate and follows the overhanging board of base plate one end bending type, the reinforcement rotate install in perforation lateral wall, the reinforcement is located when the reinforcement is located the reinforcement position, overhanging board passes the perforation is located outside the reinforcement sleeve pipe.
Further, the base plate is in a fan-shaped arrangement, and the overhanging plate and the base plate are vertically arranged;
When the reinforcement is positioned at the initial position, the base plate is perpendicular to the axial direction of the reinforcement sleeve, a plurality of base plates are combined into a circular structure, and the overhanging plate is positioned in the through hole.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: through being equipped with positioner between adjacent drilling rod, make have relative displacement between outer tube and the interior sleeve pipe through bulldozing or tensile stock, make the outer tube remove to the second position by first position, thereby make the elastic component relative with the hole of stepping down, because the elasticity recovery effect of elastic component, the elastic component passes the hole of stepping down and drilling pore wall looks butt, and then can adjust the stock to the intermediate position of drilling, avoid the drilling rod because the action of gravity is located the drilling rod bottom, or the drilling rod is in the inclination in the drilling, make at slip casting in-process, just can make stock around slurry distribution even, make the anchor bolt support more effective.
Drawings
FIG. 1 is a schematic view of an embodiment of a shock absorbing and positioning composite grouting anchor capable of enhancing anchoring action;
FIG. 2 is a schematic view of the positioning device in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the positioning device of FIG. 1;
FIG. 4 is a schematic vertical cross-section of the positioning device of FIG. 1;
FIG. 5 is a schematic view of the reinforcing sleeve of FIG. 1;
FIG. 6 is a schematic view of the structure of the reinforcing apparatus of FIG. 1 (with the reinforcement members in the reinforcing position);
FIG. 7 is a schematic cross-sectional view of the fastening device of FIG. 1 (with the reinforcement member in a reinforced position);
FIG. 8 is a schematic longitudinal section through the fastening device of FIG. 1 (with the reinforcement member in an initial position);
FIG. 9 is a schematic diagram of the structure of the fastener of FIG. 1;
In the figure: 1 positioning device, 11 inner sleeve, 111 through holes, 12 outer sleeve, 13 abdication holes, 14 elastic pieces, 141 springs, 142 fixing rods, 143 attaching parts, 144 fixing blocks, 15 first annular outer convex parts, 16 connecting springs, 17 annular inner convex parts, 18 second annular outer convex parts, 19 annular bulges, 2 drill rods, 3 reinforcing devices, 31 reinforcing sleeves, 32 perforation holes, 33 grouting holes, 34 reinforcing parts, 341 overhanging plates, 342 base plates, 4 grouting plugs, 5 arched backing plates and 6 nuts.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a shock absorbing and positioning composite grouting anchor capable of enhancing an anchoring effect, which comprises a plurality of positioning devices 1, a plurality of drill rods 2, a plurality of reinforcing devices 3, a grout stop 4, an arch backing plate 5 and nuts 6.
The positioning device is characterized in that two ends of the positioning device 1 and two ends of the reinforcing device 3 are used for being connected with the drill rod 2 to form an anchor rod body, the anchor rod body is used for being placed in a drill hole, the arch-shaped base plate 5 and the grout stop plug 4 are fixedly connected with the anchor rod body, and the nut 6 is in threaded connection with the anchor rod body (in the prior art, and specific description is not made here).
Referring to fig. 2 to 4, the positioning device 1 includes an outer sleeve 12, an inner sleeve 11 sleeved in the outer sleeve 12, and a plurality of elastic members 14, wherein an end of the outer sleeve 12 away from the inner sleeve 11 is used for connecting with an adjacent drill rod 2, and an end of the inner sleeve 11 away from the outer sleeve 12 is used for connecting with an adjacent drill rod 2; the side wall of the outer sleeve 12 is provided with a plurality of abdication holes 13 along the circumferential direction, relative displacement along the extending direction of the outer sleeve 12 is arranged between the outer sleeve 12 and the inner sleeve 11, so that the outer sleeve 12 is provided with a first position and a second position opposite to the inner sleeve 11, an anchor rod is arranged in a borehole, and the outer sleeve 12 can be driven to move from the first position to the second position by stretching or pushing one end of the anchor rod outside the borehole.
Specifically, one end of the inner sleeve 11 is connected with one end of the outer sleeve 12, which is close to the end of the inner sleeve 11, through a connecting spring 16, when the connecting spring 16 is in an initial state, the outer sleeve 12 can be fixed at the first position, and the connecting spring 16 is in a compressed or stretched state by pushing or stretching the anchor rod, so that the outer sleeve 12 is moved from the first position to the second position, and a certain damping effect can be provided, so that the anchor rod has an adjusting capability under a certain external force. In this embodiment, one end of the outer sleeve 12 far away from the inner sleeve 11 is bent inwards to form an annular protrusion 19, one end of the connecting spring 16 is connected with one end of the inner sleeve 11 near the outer sleeve 12, and the other end is connected with the annular protrusion 19.
Further, the outer side wall of one end of the inner sleeve 11, which is close to the outer sleeve 12, protrudes outwards to form a first annular outer protrusion 15, the inner side wall of the outer sleeve 12 protrudes inwards to form an annular inner protrusion 17, the annular inner protrusion 17 is located between the first annular outer protrusion 15 and one end of the inner sleeve 11, which is far away from the outer sleeve 12, and the first annular outer protrusion 15 is matched with the annular inner protrusion 17 to limit the relative position of the inner sleeve 11 and the outer sleeve 12, so that one end of the inner sleeve 11, which is close to the outer sleeve 12, can be limited in the outer sleeve 12. The outer side wall of one end of the inner sleeve 11 far away from the outer sleeve 12 protrudes outwards to form a second annular outer part 18, the second annular outer part 18 is matched with one end of the outer sleeve 12 close to the inner sleeve 11 so as to limit the relative position of the inner sleeve 11 and the outer sleeve 12, and one end of the inner sleeve 11 far away from the outer sleeve 12 can be limited outside the outer sleeve 12, so that the outer sleeve 12 and the inner sleeve 11 can be prevented from being separated, and the integrity of the outer sleeve 12 and the inner sleeve 11 is improved.
The elastic pieces 14 are circumferentially distributed at intervals along the inner sleeve 11 and radially extend along the inner sleeve 11, the elastic pieces 14 are arranged on the inner sleeve 11 and have a compression state and a recovery state, when the outer sleeve 12 is positioned at the first position, the elastic pieces 14 are positioned in the compression state and between the outer side wall of the inner sleeve 11 and the inner side wall of the outer sleeve 12, when the outer sleeve 12 is positioned at the second position, the elastic pieces 14 are in one-to-one correspondence with the yielding holes 13, the elastic pieces 14 pass through the yielding holes 13 and are positioned in the recovery state and are used for being abutted against the wall of the drilling hole, and the arrangement of the elastic pieces 14 can provide a certain damping effect for the anchor rod, so that the anchor rod has an adjusting capacity under a certain external force.
In this embodiment, referring to fig. 4, a fixing block 144 is disposed in the inner sleeve 11, a plurality of through holes 111 are formed through the inner sleeve 11 at positions opposite to the fixing block 144, one end of the elastic member 14 is located at the inner sleeve 11 and connected to the fixing block 144, and the other end extends out of the inner sleeve 11 through the through holes 111; when the elastic piece 14 is in a compressed state, the elastic piece 14 is abutted against the inner side wall of the outer sleeve 12, and when the elastic piece 14 is in a recovery state, the through holes 111 are arranged in one-to-one correspondence with the yielding holes 13, and the elastic piece 14 passes through the yielding holes 13 and is abutted against the side wall of the drilled hole. So arranged, when the outer sleeve 12 is in the first position, the compression of the elastic member 14 is reduced, and damage to the elastic member 14 is avoided.
Further, the elastic member 14 includes a spring 141 and a fixing rod 142, where the fixing rod 142 extends radially along the inner sleeve 11, one end of the fixing rod is located in the inner sleeve 11, and is connected to the fixing block 144 through the spring 141, and the other end of the fixing rod extends out of the inner sleeve 11 through the through hole 111; when the elastic member 14 is in the compressed state, the fixing rod 142 is abutted against the inner side wall of the outer sleeve 12, and when the elastic member 14 is in the recovery state, the fixing rod 142 passes through the yielding hole 13 and is abutted against the side wall of the drilled hole. By providing the fixing rod 142, the supporting effect of the elastic member 14 on the anchor rod can be enhanced.
Further, the fixing rod 142 is far away from one end of the spring 141 and is bent towards two sides to form an attaching portion 143, so that the fixing rod 142 is in a T-shaped arrangement, the attaching portion 143 is in an arc shape and is matched with the side wall of the drilled hole, the fixing rod 142 extends out of the yielding hole 13 and is attached to the side wall of the drilled hole, the contact area between the fixing rod 142 and the side wall of the drilled hole is increased, and therefore the stability of the fixing rod 142 to the anchor rod is enhanced.
It should be noted that, the inner sleeve 11 is disposed along the transverse direction, specific positions of the plurality of elastic members 14 in the transverse direction may be different, in this embodiment, positions of the plurality of elastic members 14 in the transverse direction are the same, and correspondingly, positions of the plurality of through holes 111 and the plurality of yielding holes 13 in the transverse direction are also the same, so that the elastic members 14 have a supporting effect on the same position of the anchor rod, and stability of positioning the anchor rod by the elastic members 14 may be enhanced.
In this embodiment, the elastic members 14 are provided with four elastic members, and are uniformly spaced along the circumferential direction of the inner sleeve 11 and respectively located in the four directions of the upper, lower, left and right directions, and the side wall of the outer sleeve 12 is uniformly provided with four abdicating holes 13 along the circumferential direction, so as to be matched with the elastic members 14, so as to support the anchor rod from the four directions and position the anchor rod in the middle of the drill hole.
Referring to fig. 5 to 9, the reinforcement device 3 includes a reinforcement sleeve 31 and a reinforcement 34, wherein a plurality of grouting holes 33 are formed in the sidewall of the anchor rod body in a penetrating manner, in this embodiment, the plurality of grouting holes 33 are formed in the sidewall of the reinforcement sleeve 31, and two ends of the reinforcement sleeve 31 are used for being connected with the drill rod 2 so as to allow mortar located in the reinforcement sleeve 31 to pass through; the side wall of the reinforcement sleeve 31 is provided with a plurality of through holes 32 at intervals along the circumferential direction, the reinforcement 34 is movably arranged on the side wall of the through holes 32, and has an initial position positioned in the reinforcement sleeve 31 and a reinforcement position with one end penetrating through the through holes 32 and positioned outside the reinforcement sleeve 31; the reinforcement 34 is pressed by the mortar in the reinforcement sleeve 31 from the initial position to the reinforcement position.
In other embodiments, the reinforcement member 34 may be slidably mounted on the side wall of the through hole 32, in this embodiment, referring to fig. 7 and 9, the reinforcement member 34 includes a base plate 342 and an overhanging plate 341 bent along one end of the base plate 342, the reinforcement member 34 is rotatably mounted on the side wall of the through hole 32, and when the reinforcement member 34 is in the reinforcing position, the overhanging plate 341 passes through the through hole 32 and is located outside the reinforcing sleeve 31.
Specifically, referring to fig. 8, the base plate 342 is disposed in a fan shape, the overhanging plate 341 and the base plate 342 are disposed vertically, when the reinforcement 34 is located at the initial position, the base plate 342 is axially perpendicular to the reinforcement sleeve 31, a plurality of base plates 342 are combined into a circular structure, and the overhanging plate 341 is located in the through hole 32, so that when the mortar flows in the reinforcement sleeve 31, the extrusion of the mortar on the reinforcement 34 can be ensured, and the overhanging plate 341 rotates outside the reinforcement sleeve 31.
According to the technical scheme provided by the embodiment of the invention, the positioning device 1 is arranged in the anchor rod, the relative displacement is arranged between the outer sleeve 12 and the inner sleeve 11 by pushing or stretching the anchor rod, so that the outer sleeve 12 moves from the first position to the second position, the fixed rod 142 is opposite to the yielding hole 13, the fixed rod 142 passes through the yielding hole 13 to abut against the wall of the drilling hole due to the elastic recovery action of the spring 141, the anchor rod can be adjusted to the middle position of the drilling hole, and the drill rod 2 can be prevented from being positioned at the bottom of the drill rod 2 due to the action of gravity. Mortar is injected into one end of the anchor rod, the mortar enters the fixed sleeve, thrust is applied to the base plate 342, the fixing piece rotates to a fixed position from an initial position, the overhanging plate 341 rotates to the outside of the fixed sleeve, the mortar flows out of the grouting holes 33 to the position between the anchor rod and the side wall of the drilled hole, the overhanging plate 341 is fixed in the mortar, the overhanging plate 341 and the mortar form a whole, the overhanging plate is fixed with surrounding rock-soil body, the integrity of the anchor rod and the mortar can be enhanced, meanwhile, the connection between the anchor rod and surrounding broken rock-soil body can be enhanced, and accordingly a good supporting effect is achieved. Because in the anchor bolt support maintained stable state, can receive the influence of various excavation disturbances, owing to the setting of elastic component 14 and coupling spring 16 for the stock has certain adjustment in order to deal with various stress disturbances, avoids the stock to take place not hard up, prevents that the supporting effect from receiving the influence.
Generally, the anchor rod is placed into the borehole and is not necessarily kept in a horizontal state but is located at the bottom of the borehole, and is possibly in an inclined state, in this embodiment, elastic members 14 are arranged in four directions of the inner sleeve 11, so that the anchor rod can be forced in multiple directions, the anchor rod is located in the middle of the borehole, mortar around the anchor rod can be uniformly distributed in the grouting process, and the anchor rod support is more effective.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the claimed application.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The damping and positioning composite grouting anchor rod capable of strengthening the anchoring effect is characterized by comprising a plurality of positioning devices and a plurality of drill rods, wherein two ends of each positioning device are connected with the drill rods to form an anchor rod body, and a plurality of grouting holes are formed in the side wall of the anchor rod body in a penetrating manner so as to enable mortar in the anchor rod body to pass through;
The positioning device comprises an outer sleeve, an inner sleeve sleeved in the outer sleeve and a plurality of elastic pieces, one end of the outer sleeve, which is far away from the inner sleeve, is used for being connected with the adjacent drill rod, and one end of the inner sleeve, which is far away from the outer sleeve, is used for being connected with the adjacent drill rod; the side wall of the outer sleeve is provided with a plurality of abdication holes in a penetrating way along the circumferential direction, and relative displacement along the extending direction of the outer sleeve is arranged between the outer sleeve and the inner sleeve, so that the outer sleeve is provided with a first position and a second position which are opposite to the inner sleeve;
The elastic pieces are circumferentially distributed at intervals along the inner sleeve, extend radially along the inner sleeve and are arranged on the inner sleeve, the elastic pieces are in a compression state and a recovery state, when the outer sleeve is positioned at the first position, the elastic pieces are positioned in the compression state and are positioned between the outer side wall of the inner sleeve and the inner side wall of the outer sleeve, when the outer sleeve is positioned at the second position, the elastic pieces are in one-to-one opposite to the abdication holes, and the elastic pieces penetrate through the abdication holes and are positioned in the recovery state and are used for being abutted against the wall of a drilling hole;
the inner sleeve is close to the outer sleeve, the outer side wall of one end of the inner sleeve protrudes outwards to form a first annular outer protruding part, the inner side wall of the outer sleeve protrudes inwards to form an annular inner protruding part, the annular inner protruding part is positioned between the first annular outer protruding part and one end of the inner sleeve, which is far away from the outer sleeve, and the first annular outer protruding part is matched with the annular inner protruding part so as to limit the relative position of the inner sleeve and the outer sleeve;
The outer side wall of one end of the inner sleeve far away from the outer sleeve is outwards protruded to form a second annular outer part, and the second annular outer part is matched with one end of the outer sleeve close to the inner sleeve so as to limit the relative position of the inner sleeve and the outer sleeve;
The anchor rod body further comprises a plurality of reinforcing devices, wherein the reinforcing devices comprise reinforcing sleeves and reinforcing parts, two ends of each reinforcing sleeve are used for being connected with the drill rod, and the grouting holes are formed in the side wall of each reinforcing sleeve;
The side wall of the reinforcing sleeve is provided with a plurality of through holes in a penetrating way at intervals along the circumferential direction, the reinforcing member is movably arranged on the side wall of the through holes, and the reinforcing member is provided with an initial position positioned in the reinforcing sleeve and a reinforcing position with one end penetrating through the through holes and positioned outside the reinforcing sleeve; the reinforcement is extruded by the mortar in the reinforcement sleeve and moves from the initial position to the reinforcement position;
the reinforcement comprises a base plate and an overhanging plate formed by bending along one end of the base plate, the reinforcement is rotatably arranged on the side wall of the through hole, and when the reinforcement is positioned at the reinforcing position, the overhanging plate passes through the through hole and is positioned outside the reinforcing sleeve;
The base plate is in a fan-shaped arrangement, and the overhanging plate and the base plate are vertically arranged;
When the reinforcement is positioned at the initial position, the base plate is perpendicular to the axial direction of the reinforcement sleeve, a plurality of base plates are combined into a circular structure, and the overhanging plate is positioned in the through hole.
2. The shock absorbing and positioning composite grouting anchor rod capable of enhancing an anchoring effect according to claim 1, further comprising a fixed block positioned in the inner sleeve; the position of the inner sleeve, which is opposite to the fixed block, is provided with a plurality of through holes in a penetrating way, one end of the elastic piece is positioned on the inner sleeve and connected with the fixed block, and the other end of the elastic piece extends out of the inner sleeve through the through holes;
When the elastic piece is in a compression state, the elastic piece is abutted to the inner side wall of the outer sleeve, and when the elastic piece is in a recovery state, the through holes are in one-to-one correspondence with the yielding holes.
3. The shock absorbing and positioning composite grouting anchor rod capable of enhancing anchoring effect as claimed in claim 2, wherein the elastic member comprises a spring and a fixing rod; the fixed rod radially extends along the inner sleeve, one end of the fixed rod is positioned in the inner sleeve and connected with the fixed block through a spring, and the other end of the fixed rod penetrates through the through hole and extends out of the inner sleeve;
When the elastic piece is in a compression state, the fixed rod is abutted with the inner side wall of the outer sleeve, and when the elastic piece is in a recovery state, the fixed rod passes through the abdication hole and is abutted with the side wall of the drilling hole.
4. A shock absorbing and positioning composite grouting anchor rod capable of strengthening an anchoring effect as claimed in claim 3, wherein one end of the fixing rod, which is far away from the spring, is bent towards two sides to form an attaching part, so that the fixing rod is in a T-shaped arrangement, and the attaching part is in an arc-shaped arrangement to be matched with the side wall of the drilling hole.
5. A shock absorbing and positioning composite grouting anchor as claimed in claim 1, wherein one end of the inner sleeve is connected to one end of the outer sleeve adjacent to the end of the inner sleeve by a connecting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910921929.0A CN110617094B (en) | 2019-09-27 | Damping positioning composite grouting anchor rod capable of strengthening anchoring effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910921929.0A CN110617094B (en) | 2019-09-27 | Damping positioning composite grouting anchor rod capable of strengthening anchoring effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110617094A CN110617094A (en) | 2019-12-27 |
| CN110617094B true CN110617094B (en) | 2024-06-04 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1255403A (en) * | 1969-05-09 | 1971-12-01 | Universal Anchorage Holding Lt | Ground anchor |
| DE4201419C1 (en) * | 1992-01-21 | 1993-08-19 | Gd-Anker Gmbh, 3370 Seesen, De | Rock anchor for location in rock with low cohesion factor - comprises outer bore anchor for making borehole and stabilising hole wall and injection anchor of hardenable material |
| DE102005015494A1 (en) * | 2005-04-05 | 2006-10-12 | Friedr. Ischebeck Gmbh | Robust bayonet coupling used in rotary-impact drilling for underground injected bore anchors, holds bayonet studs with clearance from bayonet groove |
| CN104358580A (en) * | 2014-10-30 | 2015-02-18 | 安徽理工大学 | Large-head energy gathering perforating pipe type grouting anchor rod with ribbed steel framework and construction method |
| CN105350994A (en) * | 2015-10-28 | 2016-02-24 | 天地科技股份有限公司 | Grouting anchor and using method thereof |
| CN207044375U (en) * | 2017-08-15 | 2018-02-27 | 中建五局第三建设有限公司 | A kind of grout sleeve slurry anchor connection test piece fixing device |
| KR101841644B1 (en) * | 2017-11-01 | 2018-03-23 | 남기황 | Grouting method using anchor with center holding function |
| CN109209455A (en) * | 2018-09-26 | 2019-01-15 | 浙江普泰克金属制品有限公司 | A kind of expansion shell type prestressing force hollow grouting anchor with plasma resistance plug |
| CN109441507A (en) * | 2018-11-26 | 2019-03-08 | 山东科技大学 | A kind of secondary supporting grouted anchor bar with adaptation function |
| CN211202025U (en) * | 2019-09-27 | 2020-08-07 | 中国地质大学（武汉） | Shock-absorbing positioning composite grouting anchor rod capable of strengthening anchoring effect |
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1255403A (en) * | 1969-05-09 | 1971-12-01 | Universal Anchorage Holding Lt | Ground anchor |
| DE4201419C1 (en) * | 1992-01-21 | 1993-08-19 | Gd-Anker Gmbh, 3370 Seesen, De | Rock anchor for location in rock with low cohesion factor - comprises outer bore anchor for making borehole and stabilising hole wall and injection anchor of hardenable material |
| DE102005015494A1 (en) * | 2005-04-05 | 2006-10-12 | Friedr. Ischebeck Gmbh | Robust bayonet coupling used in rotary-impact drilling for underground injected bore anchors, holds bayonet studs with clearance from bayonet groove |
| CN104358580A (en) * | 2014-10-30 | 2015-02-18 | 安徽理工大学 | Large-head energy gathering perforating pipe type grouting anchor rod with ribbed steel framework and construction method |
| CN105350994A (en) * | 2015-10-28 | 2016-02-24 | 天地科技股份有限公司 | Grouting anchor and using method thereof |
| CN207044375U (en) * | 2017-08-15 | 2018-02-27 | 中建五局第三建设有限公司 | A kind of grout sleeve slurry anchor connection test piece fixing device |
| KR101841644B1 (en) * | 2017-11-01 | 2018-03-23 | 남기황 | Grouting method using anchor with center holding function |
| CN109209455A (en) * | 2018-09-26 | 2019-01-15 | 浙江普泰克金属制品有限公司 | A kind of expansion shell type prestressing force hollow grouting anchor with plasma resistance plug |
| CN109441507A (en) * | 2018-11-26 | 2019-03-08 | 山东科技大学 | A kind of secondary supporting grouted anchor bar with adaptation function |
| CN211202025U (en) * | 2019-09-27 | 2020-08-07 | 中国地质大学（武汉） | Shock-absorbing positioning composite grouting anchor rod capable of strengthening anchoring effect |
Non-Patent Citations (3)
| Title |
|---|
| 中空注浆锚杆与普通砂浆锚杆加固效果的比较;余建雨;杨健辉;;工业建筑;20161120(11);全文 * |
| 格构梁与锚索注浆复合结构在加固边坡工程中的应用研究;徐小华;;探矿工程(岩土钻掘工程);20090525(05);全文 * |
| 软弱围岩隧洞一次支护安全性研究与实践;顾耀民;田建林;宋勇;;中国水能及电气化;20180415(04);全文 * |
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