CN217781937U - Anchoring structure for pit flushing repair - Google Patents
Anchoring structure for pit flushing repair Download PDFInfo
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- CN217781937U CN217781937U CN202221676828.5U CN202221676828U CN217781937U CN 217781937 U CN217781937 U CN 217781937U CN 202221676828 U CN202221676828 U CN 202221676828U CN 217781937 U CN217781937 U CN 217781937U
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- anchor bar
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Abstract
The utility model discloses an anchor structure for dashing hole repair, including a plurality of anchor muscle holes, a plurality of anchor muscle poles and a plurality of inflation locating component, a plurality of anchor muscle holes and a plurality of anchor muscle pole one-to-ones, anchor muscle hole slope sets up in the bottom of dashing the hole, and a plurality of anchor muscle holes are plum blossom shape and distribute, the first end of anchor muscle pole is located the anchor muscle downthehole, the second end of anchor muscle pole is located outside the anchor muscle hole, the second end of anchor muscle pole flushes with the top of dashing the hole, inflation locating component is located the anchor muscle downthehole, inflation locating component cover is established on the anchor muscle pole, the equal butt of hole bottom and inner wall in inflation locating component and anchor muscle hole, the axle center of anchor muscle pole and the axle center collineation in anchor muscle hole, the anchor muscle pole is located and pours into the anchor agent between the inner wall in anchor muscle hole. By adopting the inclined drilling and bar planting mode, the bonding length between the anchor bar rod and the new structure body is effectively improved, and the deviation of the anchor bar rod in the anchor bar hole is reduced through the expansion positioning assembly.
Description
Technical Field
The utility model belongs to the technical field of the soil and water building is repaired and is consolidated, especially, relate to an anchor structure for dashing hole and repair.
Background
When the hydropower station stilling pond runs for decades, most of the water outlet buildings are damaged by erosion in different degrees, wherein the most serious erosion damage is the pit erosion on the surface of concrete. In these hydraulic engineering, the erosion damaged part needs to be repaired in time so as to avoid causing potential safety hazard. At present, the concrete bar planting repair technology is an effective mode for repairing the punched pits. The anchor bar hole aperture that concrete bar planting repaired technical requirement is less, and drilling construction vibration is little, and is less to the influence of the old structure of outlet structure, adopts novel bar planting anchoring agent body simultaneously, and the ageing resistance of anchoring agent body is fine, has the superiority in hydraulic engineering construction. The concrete embedded steel bar repairing technology adopts the anchor bars on the concrete of an old structure body to strengthen the connection of the new and old structure bodies and improve the binding power of the joint surface of the new and old structure bodies. The prior method adopting vertical anchor bars has the following defects: when the depth of the punched pit is shallow, the thickness of the repairing material is small, so that the effective bonding length of the anchor bar and the repairing material is short; when the depth of the punched hole is deeper, the old concrete is thinner, so that the effective bonding length of the anchor bar and the old concrete is short. The short effective bonding length can cause the bonding force of the joint surface of the new and old structural bodies to not meet the engineering requirement and the durability is not high.
In addition, adopt the perfusion method to pour into the anchor agent body in the anchor bar hole after, the anchor bar is downthehole to put into of anchor bar, and the anchor bar does not have any support to rely in the anchor bar is downthehole, and the anchor bar off normal is very general, and in addition in the anchor agent body period of condensing, the anchor bar does not have any support to rely and unavoidable leads to rocking of anchor bar, has further aggravated the off normal of anchor bar, causes the anchor quality to descend or the anchor quality is unqualified, therefore how to realize the central firm of anchor bar in the anchor bar is also a problem of treating urgent solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome one or more not enough of prior art, provide an anchor structure for dashing hole and repairing.
The purpose of the utility model is realized through the following technical scheme:
an anchoring structure for pit punching repair comprises a plurality of anchor bar holes, a plurality of anchor bar rods and a plurality of expansion positioning assemblies, wherein the anchor bar holes correspond to the anchor bar rods one by one, the anchor bar holes are obliquely arranged at the bottom of a pit, the anchor bar holes are distributed at the bottom of the pit in a quincunx manner, first ends of the anchor bar rods are positioned in the anchor bar holes, second ends of the anchor bar rods are positioned outside the anchor bar holes, second ends of the anchor bar rods are flush with the top of the pit, the expansion positioning assemblies are positioned in the anchor bar holes, the expansion positioning assemblies are sleeved on the anchor bar rods, and the expansion positioning assemblies are abutted against the bottoms and inner walls of the anchor bar holes; the axis of the anchor bar rod is collinear with the axis of the anchor bar hole, and an anchoring agent is filled between the rod body of the anchor bar rod in the anchor bar hole and the inner wall of the anchor bar hole.
In a further improvement, the inclination angle of the anchor bar hole is 40-50 degrees.
In a further improvement, the depth of the anchor bar hole is 1m.
In a further improvement, the anchoring structure further comprises an additional stirrup, and the additional stirrup is connected with the anchor rod.
In a further improvement, the expansion positioning assembly comprises an expansion positioning pipe and an expansion bolt, the expansion positioning pipe is sleeved on the anchor bar rod, one end of the expansion positioning pipe, which is close to the bottom of the anchor bar hole, is provided with a flared tightening part, and the wide opening end of the tightening part is far away from the anchor bar rod; the first end of the expansion bolt piece is embedded in the tightening part, and the second end of the expansion bolt piece is abutted against the bottom of the anchor rib hole; the expansion bolt has a diameter that tapers from its second end to its first end.
In a further improvement, the inner wall of the tightening part is provided with a ring groove; the outer wall of the expansion bolt is provided with an annular bulge matched with the annular groove.
Further improve ground, the anchor structure still includes the holding ring, the holding ring through connecting piece demountable installation in the dowel hole, there is the clearance between the inner wall in holding ring and dowel hole, the first end of dowel pole stretches into in the dowel hole after passing the holding ring.
The utility model has the advantages that:
(1) When the punching pit is deep, namely the old structure body is thin, the bonding length between the anchor bar rod and the old structure body is short, and the bonding length between the anchor bar rod and the old structure body is effectively improved by adopting an inclined drilling and bar planting mode; when the punching pit is shallow, the thickness of the new structural body filled in the punching pit is small, the bonding length between the anchor bar rod and the new structural body is short, and the bonding length between the anchor bar rod and the new structural body is effectively improved by adopting an inclined drilling and bar planting mode. Therefore, the bonding strength of the joint surface of the old structure body and the new structure body is greatly improved, and the repairing quality is ensured.
(2) The expansion bolt piece is gradually propped open by the propping portion, the outer wall surface of the propping portion is tightly attached to the inner wall of the anchor bar hole, so that the anchor bar in the anchor bar hole has a supporting effect, the deviation of the anchor bar in the anchor bar hole is reduced, the length consistency of a plurality of anchor bar in the anchor bar hole is ensured, the requirement of engineering on the bonding length between the anchor bar and an old structure body or a new structure body is met, and the repairing quality is ensured.
(3) And the anchor bar is subjected to second repositioning through the positioning ring, so that the deviation phenomenon of the anchor bar in the anchor bar hole is reduced.
(4) The fit between the expansion bolt and the tightening part is enhanced by the cooperation of the annular bulge and the annular groove.
Drawings
FIG. 1 is a schematic view of a pit in a soil-water building;
FIG. 2 is a schematic view of a distribution of anchor bar holes;
FIG. 3 is a schematic view of the placement of a tendon shaft into a tendon hole (expanded locator tube not tensioned);
FIG. 4 is another schematic view of the tendon-insertion hole (expanded alignment tube tightened state);
fig. 5 is a schematic view of the positioning ring mounted in the anchor bar opening.
In the figure, 1, an old structure; 2. punching a pit; 3. an anchor bar hole; 4. an anchor bar rod; 5. expanding the positioning tube; 6. an expansion bolt; 7. a positioning ring; 8. an anchoring agent; 9. a new structure.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
The present embodiment provides an anchoring structure for repairing a punch-out pit 2. Fig. 1 shows a conventional pit 2 in the surface of a soil-water building. The anchoring structure is used for reinforcing a new structure body 9 (various repairing materials) filling the punched pit 2 and an old structure body 1. As shown in fig. 2 to 4, the anchoring structure includes a plurality of anchor bar holes 3 provided at the bottom of the punching pit 2, the anchor bar holes 3 are provided obliquely to the bottom of the punching pit 2, and the inclination angle of the anchor bar holes 3 is set to 45 ° ± 5 °. The anchor bar holes 3 are distributed in a quincunx shape, and the space S1 and the row spacing S2 between the anchor bar holes 3 are both 1 meter. The number of the anchor bar holes 3 is determined by calculation according to the repair area of the specific punching pit 2. The depth of the anchor bar hole 3 is set to 1 meter. Anchor rod 4 wears to establish in anchor hole 3, and anchor rod 4 is located the one end outer wall cover in anchor hole 3 and is equipped with expansion positioning component, and anchor rod 4's the other end flushes with the top of dashing hole 2. After the anchor bar rod 4 is placed in the anchor bar hole 3, when one end of the anchor bar rod 4 reaches the bottom of the anchor bar hole 3, the expansion positioning component is abutted against the bottom of the anchor bar hole 3 under the action of external force, and meanwhile, the outer wall of the expansion positioning component is abutted against the inner wall of the anchor bar hole 3, so that the axis of the anchor bar rod 4 is collinear with the axis of the anchor bar hole 3, and the anchor bar rod 4 is supported at the center of the anchor bar hole 3. The gap between the anchor bar rod 4 in the anchor bar hole 3 and the inner wall of the anchor bar hole 3 is filled with an anchoring agent 8. Each anchor rod 4 is also connected with an additional stirrup, and each anchor rod 4 is reinforced through the additional stirrup.
Preferably, the expansion positioning assembly comprises an expansion positioning tube 5 and an expansion bolt 6. The expansion positioning pipe 5 is sleeved on the outer wall of the lower end of the anchor bar rod 4, the left end of the expansion positioning pipe 5 extends to form a flared tightening part, and the wide opening end of the tightening part faces the bottom of the anchor bar hole 3. The right end of the expansion bolt piece 6 is embedded into the tightening part from the wide-mouth end of the tightening part, and the left end of the expansion bolt piece 6 is abutted against the bottom of the anchor rib hole 3. The thickness of the expansion bolt 6 tapers from its left end to its right end. Fig. 3 shows the state when the expansion bolt member 6 does not reach the bottom of the anchor bar hole 3, at this time, the tightening part of the expansion positioning tube 5 is in a natural state, only the leftmost end of the tightening part is attached to the inner wall of the anchor bar hole 3, and a gap is left between the other wall surfaces of the tightening part and the inner wall of the anchor bar hole 3, so that the anchor bar rod 4 can be conveniently placed in the anchor bar hole 3. Fig. 4 shows the state that expansion bolt piece 6 reaches the hole bottom of anchor bar hole 3, and under the exogenic action, expansion bolt piece 6 progressively supports tightly with 3 hole bottoms in anchor bar hole, and expansion bolt piece 6 progressively deepens to stretching portion inside simultaneously, and stretching portion progressively expands outward, until the outer wall deformation of stretching portion reaches and anchor bar hole 3 inner wall closely laminates, has realized the fixed of anchor bar pole 4 in anchor bar hole 3.
In a further improvement, the inner wall of the tightening part is provided with a plurality of annular grooves (not shown in the figure), and the outer wall of the expansion bolt member 6 is provided with annular protrusions (not shown in the figure) which are matched with the annular grooves. Through the cooperation of annular groove and annular bulge, when expansion bolt spare 6 progressively deepens to propping the inside degree of laminating between the portion of propping, increase expansion bolt spare 6 and propping.
As a further improvement of the above solution, the anchoring structure further comprises a positioning ring 7. As shown in fig. 5, the positioning ring 7 is detachably mounted in the anchor bar hole 3 through the connecting member, a gap exists between the positioning ring 7 and the inner wall of the anchor bar hole 3, and the first end of the anchor bar rod 4 passes through the positioning ring 7 and then extends into the anchor bar hole 3. The connecting piece is preferably provided with two connecting lug plates which are respectively connected with the anchor bar hole 3 and the positioning ring 7 through bolts or screws. After the expansion positioning component supports and fixes the anchor bar rod 4, the positioning ring 7 is sleeved from the upper end of the anchor bar rod 4, the positioning ring 7 is fixed with the inner wall of the anchor bar hole 3 through the connecting piece, the anchor bar rod 4 is positioned again, the anchor bar rod 4 is ensured to be stabilized at the central position of the anchor bar hole 3, and meanwhile, a gap reserved between the positioning ring 7 and the inner wall of the anchor bar hole 3 ensures the solidification of the anchoring agent 8.
The working process of the utility model is as follows: drilling an inclined anchor bar hole 3 at the bottom of the punching pit 2 by using a pneumatic drill, wherein the inclination angle of the anchor bar hole 3 is selected to be 45 +/-5 degrees, and drilling the anchor bar hole 3 at the bottommost part of the punching pit 2 firstly; flushing the anchor bar hole 3 by using a high-pressure water gun to flush out sundries such as concrete slag and scraps in the hole so as to ensure that the hole is clean and free of foreign matters; injecting an anchoring agent 8 by using a perfusion method, wherein the anchoring agent 8 is filled in a gap between the anchor bar rod 4 and the anchor bar hole 3; one end of the anchor bar 4 is sleeved with an expansion positioning pipe 5, and an expansion bolt piece 6 is embedded into the expansion positioning pipe 5; placing one end of an anchor bar rod 4 sleeved with an expansion positioning pipe 5 into an anchor bar hole 3, attaching the wide-mouth end of a stretching part to the inner wall of the anchor bar hole 3 for guiding during placement, rotating the anchor bar rod 4 in the same direction for multiple times to enable the anchor bar rod 4 to be in full contact with an anchoring agent 8, applying external force to the anchor bar rod 4 when an expansion bolt piece 6 reaches the bottom of the anchor bar hole 3, enabling the expansion bolt piece 6 to be tightly abutted against the bottom of the anchor bar hole 3, expanding and deforming the wall surface of the stretching part outwards until the wall surface is tightly attached to the inner wall of the anchor bar hole 3, and stopping applying the external force; sleeving the positioning ring 7 to the anchor bar rod 4, and connecting the positioning ring 7 with the inner wall of the anchor bar hole 3 after the positioning ring reaches the anchor bar hole 3; taking the first anchor bar hole 3 as a central reference point, carrying out quincunx porous layout, and then respectively implanting anchor bar rods 4; standing the anchor bar rod 4, and waiting for the solidification of the anchoring agent 8; connecting all anchor bar rods 4 with additional stirrups; filling the pit 2 with a new structure 9 (various repair materials); and carrying out subsequent construction such as leveling and the like.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (7)
1. The anchoring structure for pit punching repair is characterized by comprising a plurality of anchor bar holes (3), a plurality of anchor bar rods (4) and a plurality of expansion positioning components, wherein the anchor bar holes (3) correspond to the anchor bar rods (4) one by one, the anchor bar holes (3) are obliquely arranged at the bottom of a pit (2), the anchor bar holes (3) are distributed at the bottom of the pit (2) in a quincunx shape, the first ends of the anchor bar rods (4) are positioned in the anchor bar holes (3), the second ends of the anchor bar rods (4) are positioned outside the anchor bar holes (3), the second ends of the anchor bar rods (4) are flush with the top of the pit (2), the expansion positioning components are positioned in the anchor bar holes (3), the expansion positioning components are sleeved on the anchor bar rods (4), and the expansion positioning components are abutted against the hole bottoms and the inner walls of the anchor bar holes (3); the axis of the anchor bar rod (4) is collinear with the axis of the anchor bar hole (3), and an anchoring agent (8) is poured between the rod body of the anchor bar rod (4) in the anchor bar hole (3) and the inner wall of the anchor bar hole (3).
2. Anchoring structure for pit-punching repair according to claim 1, characterized in that the inclination of the tendon holes (3) is 40 ° -50 °.
3. An anchoring structure for pit-flushing repair according to claim 1, characterized in that the depth of the tendon holes (3) is 1m.
4. An anchoring structure for pit repair according to claim 1, characterized in that it further comprises an additional stirrup connected to the bar (4).
5. The anchoring structure for repairing the punched hole as claimed in claim 1, wherein the expansion positioning assembly comprises an expansion positioning tube (5) and an expansion bolt member (6), the expansion positioning tube (5) is sleeved on the anchor bar rod (4), one end of the expansion positioning tube (5) close to the hole bottom of the anchor bar hole (3) is provided with a flared tightening part, and the wide opening end of the tightening part is far away from the anchor bar rod (4); the first end of the expansion bolt piece (6) is embedded in the tightening part, and the second end of the expansion bolt piece (6) is abutted against the bottom of the anchor bar hole (3); the diameter of the expansion bolt (6) tapers from its second end to its first end.
6. The anchoring structure for repairing a punched pit according to claim 5, wherein an inner wall of the tightening portion is provided with a ring groove; the outer wall of the expansion bolt piece (6) is provided with an annular bulge matched with the annular groove.
7. The anchoring structure for repairing a pit according to claim 1, wherein the anchoring structure further comprises a positioning ring (7), the positioning ring (7) is detachably mounted in the tendon hole (3) through a connecting piece, a gap exists between the positioning ring (7) and the inner wall of the tendon hole (3), and the first end of the tendon rod (4) penetrates through the positioning ring (7) and then extends into the tendon hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221676828.5U CN217781937U (en) | 2022-07-01 | 2022-07-01 | Anchoring structure for pit flushing repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221676828.5U CN217781937U (en) | 2022-07-01 | 2022-07-01 | Anchoring structure for pit flushing repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217781937U true CN217781937U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221676828.5U Active CN217781937U (en) | 2022-07-01 | 2022-07-01 | Anchoring structure for pit flushing repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217781937U (en) |
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2022
- 2022-07-01 CN CN202221676828.5U patent/CN217781937U/en active Active
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