CN112177376A - Pre-embedded anchoring type concrete crack repairing process - Google Patents
Pre-embedded anchoring type concrete crack repairing process Download PDFInfo
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- CN112177376A CN112177376A CN202011287380.3A CN202011287380A CN112177376A CN 112177376 A CN112177376 A CN 112177376A CN 202011287380 A CN202011287380 A CN 202011287380A CN 112177376 A CN112177376 A CN 112177376A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
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Abstract
The invention discloses a pre-embedded anchoring type concrete crack repairing process, which belongs to the technical field of concrete repairing, wherein a repairing rod is inserted in a repairing groove cavity, a plurality of transverse anchoring rods with inner ends bonded with inner pre-embedded rods are distributed on the end wall of an outer embedded rod from bottom to top, after a heated crack repairing agent is injected into the repairing groove cavity through the inner pre-embedded rods, the inner pre-embedded rods are heated to ensure that the inner ends of the transverse anchoring rods are sequentially separated from the inner pre-embedded rods and the outer embedded rods, the plurality of transverse anchoring rods are embedded in the crack repairing agent, the outer tips of the transverse anchoring rods are inserted into the repairing groove cavity to play an anchoring role, the outer inserting rods are upwards pulled out and are injected for the second time to form a concrete repairing layer in the crack repairing groove cavity, the inner pre-embedded rods, a conical material guide part and the plurality of transverse anchoring rods are embedded in the repairing groove cavity, and the plurality of transverse anchoring rods are distributed and arranged up and down, so that the transverse bonding degree and the integral mechanical strength between the concrete repairing groove And (4) degree.
Description
Technical Field
The invention relates to the technical field of concrete repair, in particular to a pre-embedded anchoring type concrete crack repair process.
Background
In recent years, with the continuous development of building waterproof technology and the continuous improvement of national building waterproof standard specifications, regulations and the like, the leakage proportion of house buildings in China is continuously reduced, the national and large-area leakage problem is preliminarily restrained, but the leakage problem of underground buildings is still not optimistic.
The formation reasons of concrete cracks are complex and various, and can be roughly divided into two types: one is the crack caused by the action of the load, called the load crack. The load cracks mainly include direct cracks and secondary stress cracks. The direct crack means a crack generated by direct stress generated by an external load, and the secondary stress crack means a crack caused by secondary stress generated by a load. The other is a crack caused by concrete deformation such as shrinkage, creep, uneven settlement, etc., and is called a deformation crack. Because the concrete has expend with heat and contract with cold's characteristics, when concrete or external environment temperature change, the concrete can take place expansion or shrink, just can produce stress in the concrete when the deformation of concrete receives the restraint, if stress exceeds the tensile strength of concrete, just can produce the temperature crack, and this type crack is comparatively common in actual engineering.
The formation and development of cracks, which are the main cause of the reduction of the bearing capacity, durability and waterproofness of concrete structures, may affect the normal use of buildings, and cause serious loss of lives and properties. In the prior art, concrete cracks are repaired by treatment methods such as resin sealing, resin grouting, V-shaped groove opening resin filling and the like. The methods have the defects that the control and the expansion of the cracks cannot be substantially restrained, the concrete cracks are only sealed, healed and filled, in the concrete crack repairing process, the repairing interface is a weak node, the repairing material is not easy to be bonded with the end faces of the cracks in a high-strength mode, the repairing strength is insufficient, the repaired part is easy to fall off from the cracks, and the good repairing effect is difficult to achieve.
Therefore, the pre-embedded anchoring type concrete crack repairing process is provided for effectively improving the existing concrete construction repairing effect.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an embedded anchoring type concrete crack repairing process, a repairing rod is inserted in a repairing groove cavity, a plurality of transverse anchoring rods with the inner ends bonded with inner embedded rods are distributed on the end wall of an outer embedded rod from bottom to top, after a heated crack repairing agent is injected into the repairing groove cavity through the inner embedded rods, the inner embedded rods are heated to ensure that the inner ends of the transverse anchoring rods are sequentially separated from the inner embedded rods and the outer embedded rods, the transverse anchoring rods are embedded in the crack repairing agent, the outer tips of the transverse anchoring rods are inserted into the repairing groove cavity to play an anchoring role, the outer embedded rods are pulled out upwards and injected for the second time to form a concrete repairing layer in the crack repairing groove cavity, the inner embedded rods, a conical material guiding part and the transverse anchoring rods are embedded in the repairing groove cavity, and the transverse anchoring rods are distributed up and down, the transverse bonding degree and the integral mechanical strength between the concrete material supplement layer and the repair groove cavity are effectively enhanced to a certain degree.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A pre-embedded anchoring type concrete crack repairing process comprises the following steps:
s1, opening a repairing groove cavity along the position of the concrete crack, wherein the repairing groove cavity is preferably of a V-shaped structure and is cleaned;
s2, placing a repairing rod into the repairing slot cavity, wherein the repairing rod consists of an outer embedded rod and an inner embedded rod which are embedded inside and outside, the bottom end of the inner embedded rod is fixedly connected with a conical material guide part, the outer side wall of the outer embedded rod is provided with a plurality of transverse anchoring rods of which the inner ends are bonded on the outer side wall of the inner embedded rod, and the bottom end of the repairing rod is inserted into the inner bottom of the repairing slot cavity;
s3, injecting a preheated crack repairing agent into the repairing slot cavity through the inner embedded rod, wherein the crack repairing agent seeps out of a discharge port on the conical material guide part and fills the repairing slot cavity, the inner ends of the transverse anchoring rods are sequentially separated from the inner embedded rod and the outer insertion rod due to heating in the process of pouring the crack repairing agent, and the transverse anchoring rods are embedded in the crack repairing agent;
and S4, after the crack repairing agent injected for the first time is solidified to 40-55%, upwards pulling out the outer insertion rod, pouring the crack repairing agent into the repairing groove cavity through the inner embedded rod again, forming a concrete repairing layer in the repairing groove cavity after the crack repairing agents poured for the two times are mutually fused, cutting off the inner embedded rod exposed out of the repairing groove cavity, and grinding the crack repairing end face by using grinding equipment to finish the repairing of the concrete crack.
Further, the transverse anchoring rod comprises an embedded reinforcing steel pipe positioned at the outer end of the outer insertion rod, a conical anchoring tip is movably sleeved at the outer end of the embedded reinforcing steel pipe, the inner end of the embedded reinforcing steel pipe is connected with the outer insertion rod through an embedded column, the inner end of the conical anchoring tip is fixedly connected with a high-strength elastic fiber rope in a stretching state, the inner end of the high-strength elastic fiber rope sequentially penetrates through the embedded column and is connected with the inner embedded rod in an adhesion manner, when the crack repairing agent is poured through the inner embedded rod, the crack repairing agent has a certain temperature, the side wall of the inner embedded rod is heated in the pouring process, at the moment, the adhesion position of the high-strength elastic fiber rope and the inner embedded rod is thermally melted, so that the high-strength elastic fiber rope is separated from the outer wall of the inner embedded rod, and the high-strength elastic fiber rope is in a stretched state in an initial state, so can make the most advanced outside motion under the inertia effect of toper anchor at high strength elastic fiber rope after breaking away from with interior pre-buried pole mutually to realize that the most advanced of toper anchor inserts to mending the vallecular cavity inner wall under the impulsive force effect, realize transversely inserting and establish.
Furthermore, an outer hot melt bonding part is arranged between the embedded reinforcing steel pipe and the embedded column, the inner end of the high-strength elastic fiber rope is connected with the outer wall of the outer embedded rod through the inner hot melt bonding part, the inner hot melt bonding part and the outer hot melt bonding part are both hot melted under the heating condition, because the inner hot melt bonding part is directly bonded with the inner embedded rod, when the material is injected through the inner embedded rod, the inner hot melt bonding part is not heated and melted to play a role in stretching and limiting the high-strength elastic fiber rope, the conical anchoring tip at the outer end is inserted into the inner side of the repairing groove cavity, the crack repairing agent introduced into the inner embedded rod is introduced into the repairing groove cavity through the conical material guiding part, the hot crack repairing agent plays a role in hot melting the outer hot melt bonding part connected between the embedded reinforcing steel pipe and the embedded column, and when the crack repairing agent is gradually filled in the repairing groove cavity, and the outer hot-melting bonding parts distributed from bottom to top are sequentially subjected to hot melting disconnection, so that the embedded reinforcing steel pipes and the outer insertion rods are separated from each other and are embedded in the crack repairing agent in a fusion manner.
Furthermore, outer hot melt bonding portion and interior hot melt bonding portion all adopt hot melt material to make, inlay and establish the post and all offer the through hole that is used for high strength elastic fiber rope cover to establish usefulness on outer hot melt bonding portion, and insert the pole outward and all coat on a plurality of outer walls of establishing the post and have antiseized layer, the antiseized layer of coating effectively avoids the too much adhesion between outer insert pole and crack healant to a certain extent.
Furthermore, a conical cavity is formed in the conical anchoring tip, the outer end of the embedded reinforcing steel pipe is movably connected into the conical cavity, a hot-melt adhesive filling bag tightly connected with the front end of the embedded reinforcing steel pipe is arranged in the front end of the conical cavity, after the conical anchoring tip and the embedded reinforcing steel pipe move relatively, the inner end of the embedded reinforcing steel pipe is connected with the hot-melt adhesive filling bag, when the conical anchoring tip moves towards the outside, the hot-melt adhesive filling bag is pulled, and after the hot-melt adhesive filling bag is pulled and torn, the adhesive in the hot-melt adhesive filling bag overflows.
Furthermore, hot melt adhesive fills bag including the cover locate the inside elasticity bag of toper cavity, the inside packing of elasticity bag has the binder, a plurality of oozing material holes have been seted up to the pointed end portion of toper anchor point, and the binder oozes the back through a plurality of oozing material holes, has effectively improved promptly and has buried the linking intensity between reinforcing bar pipe and the toper anchor point underground, effectively makes the pointed outer end of toper anchor again and repairs the vallecular cavity and bond mutually, improves both transverse connection's mechanical strength.
Furthermore, the elastic bag and the embedded steel pipe are bonded through the elastic wire, and after the elastic wire is pulled and broken, the elastic bag is cracked, so that the adhesive in the elastic bag overflows.
Further, outer inserted bar and interior pre-buried pole adopt the multisection mosaic structure concatenation that the inside and outside correspondence set up to form, outer inserted bar all adopts the heat conduction material to make with interior pre-buried pole, and follow supreme length of burying the reinforcing bar pipe underground that sets up down and increase progressively in proper order and set up, set up multisection structure concatenation and form, be favorable to carrying out the concatenation of suitable size according to actual crack size and degree of depth, bury reinforcing bar pipe underground and follow supreme length and increase progressively in proper order down, be favorable to being applicable to the repair vallecular cavity that is V type structure.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the technical scheme is that an outer insert rod and an inner embedded rod are sleeved inside and outside, the inner embedded rod is used for injecting crack repairing agent, a plurality of transverse anchoring rods with inner ends bonded with the inner embedded rod are distributed on the outer side wall of the outer insert rod from bottom to top, after the heated crack repairing agent is injected into a repairing groove cavity through the inner embedded rod and a conical guide part, the inner embedded rod is heated and transfers heat to the inner ends of the transverse anchoring rods, the inner ends of the transverse anchoring rods are heated and melted and are separated from the inner embedded rod and the outer insert rod respectively, the transverse anchoring rods are distributed and embedded in the crack repairing agent, the outer tips of the transverse anchoring rods are inserted into the repairing groove cavity to play an anchoring role, the outer insert rods are pulled out upwards, secondary injection materials form a concrete repairing layer in the crack repairing groove cavity, the inner embedded rod, the conical guide part and the transverse anchoring rods are embedded in the repairing groove cavity, and the transverse anchoring rods are distributed and embedded in the concrete repairing layer from top to bottom, the transverse bonding degree and the overall mechanical strength between the concrete material supplementing layer and the repairing groove cavity are effectively enhanced to a certain degree, so that the concrete material supplementing layer is not easy to fall off from the repairing groove cavity.
(2) The transverse anchoring rod comprises an embedded reinforcing steel pipe positioned at the outer end of the outer insertion rod, the outer end of the embedded reinforcing steel pipe is movably sleeved with a conical anchoring tip, the inner end of the embedded reinforcing steel pipe is connected with the outer insertion rod through an embedded column, the inner end of the conical anchoring tip is fixedly connected with a high-strength elastic fiber rope in a stretching state, the inner end of the high-strength elastic fiber rope sequentially penetrates through the embedded column and is connected with the inner embedded rod in an adhesion manner, when the crack repairing agent is poured through the inner embedded rod, the crack repairing agent has a certain temperature, in the pouring process, the side wall of the inner embedded rod is heated, at the moment, the adhesion part of the high-strength elastic fiber rope and the inner embedded rod is thermally melted, so that the high-strength elastic fiber rope is separated from the outer wall of the inner embedded rod, and is in a stretched stretching state in the initial state, so that the conical anchoring tip can move outwards under the inertia effect after the high-strength elastic fiber rope is separated from the inner embedded rod, so as to insert the conical anchoring pointed end into the inner wall of the repair groove cavity under the action of the impact force and realize transverse insertion.
(3) An outer hot melt bonding part is arranged between the embedded reinforcing steel pipe and the embedded column, the inner end of the high-strength elastic fiber rope is connected with the outer wall of the outer embedded rod through an inner hot melt bonding part, the inner hot melt bonding part and the outer hot melt bonding part are both hot melted under the heating condition, because the inner hot melt bonding part is directly bonded with the inner embedded rod, when the material is injected through the inner embedded rod, the inner hot melt bonding part is not heated and melted to play a role in stretching and limiting the high-strength elastic fiber rope any more, the conical anchoring tip at the outer end is inserted into the inner side of the repairing groove cavity, the crack repairing agent introduced into the inner embedded rod is introduced into the repairing groove cavity through the conical material guiding part, the hot crack repairing agent plays a role in hot melting the outer hot melt bonding part connected between the embedded reinforcing steel pipe and the embedded column, and after the crack repairing groove cavity is gradually filled with the crack repairing agent, a plurality of outer hot melt bonding parts distributed from bottom to top are successively disconnected, so that the plurality of embedded steel bar pipes are separated from the outer insertion rods and are embedded in the crack repairing agent in a fusion manner.
(4) The outer hot-melt bonding part and the inner hot-melt bonding part are made of hot-melt materials, through holes for sleeving the high-strength elastic fiber ropes are formed in the embedded columns and the outer hot-melt bonding part, anti-sticking layers are coated on the outer walls of the outer inserted rods and the plurality of embedded columns, and excessive adhesion between the outer inserted rods and the crack repairing agent is effectively avoided to a certain extent by the coated anti-sticking layers.
(5) The conical cavity is formed in the conical anchoring tip, the outer end of the embedded reinforcing steel pipe is movably connected in the conical cavity, a hot melt adhesive filling bag which is tightly connected with the front end of the embedded reinforcing steel pipe is arranged in the front end of the conical cavity, after the conical anchoring tip and the embedded reinforcing steel pipe move relatively, the inner end of the embedded reinforcing steel pipe is connected with the hot melt adhesive filling bag, when the conical anchoring tip moves to the outside, the hot melt adhesive filling bag is pulled, and when the hot melt adhesive filling bag is pulled and torn, the adhesive in the hot melt adhesive filling bag overflows.
(6) The hot melt adhesive fills the bag and locates the inside elasticity bag of toper cavity including the cover, the inside packing of elasticity bag has the binder, a plurality of oozing material holes have been seted up to the most advanced pointed end portion of toper anchor, the elasticity bag bonds through the elastic filament between burying the reinforcing bar pipe underground, the elastic filament is after pulling and breaking, the schizolysis of elasticity bag, thereby spill over its inside binder, the binder oozes the back through a plurality of oozing material holes, the linking intensity between burying reinforcing bar pipe and toper anchor point-end has effectively been improved promptly, effectively make the most advanced outer end of toper anchor bond with repairing the vallecular cavity again, improve both transverse connection's mechanical strength.
(7) Outer inserted rod and interior embedded rod adopt the concatenation of the inside and outside multisection mosaic structure that corresponds the setting to form, outer inserted rod all adopts the heat conduction material to make with interior embedded rod, and follow supreme length of burying the reinforcing bar pipe underground that sets up down and increase gradually the setting in proper order, set up multisection structure concatenation and form, be favorable to carrying out the concatenation of suitable size according to actual crack size and degree of depth, bury the reinforcing bar pipe underground and follow supreme length and increase gradually in proper order down, be favorable to being applicable to the repair vallecular cavity that is V type structure.
Drawings
FIG. 1 is a schematic view of the crack repair process of the present invention;
FIG. 2 is a schematic view of the present invention before fracture repair;
FIG. 3 is a schematic internal view of a repair rod of the present invention;
FIG. 4 is an external schematic view of a repair stick of the present invention;
FIG. 5 is an internal view of the junction of the external insertion rod, the internal embedded rod and the transverse anchoring rod of the present invention;
FIG. 6 is a first cross-sectional view of the interior of the present invention at the transverse anchor rod;
FIG. 7 is a second internal cross-sectional view of the transverse anchor rod of the present invention.
The reference numbers in the figures illustrate:
1 repairing rod, 2 external inserting rod, 3 internal embedded rod, 4 conical material guide part, 5 transverse anchoring rod, 501 embedded steel bar pipe, 502 conical anchoring tip, 503 high-strength elastic fiber rope, 504 internal hot melt adhesive part, 505 embedded column, 506 external hot melt adhesive part, 507 hot melt adhesive filling bag and 6 concrete repairing layer.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-4, a pre-buried anchoring type concrete crack repairing process includes the following steps:
s1, opening a repairing groove cavity along the position of the concrete crack, wherein the repairing groove cavity is preferably of a V-shaped structure and is cleaned;
s2, placing a repairing rod 1 into a repairing groove cavity, wherein the repairing rod 1 consists of an outer inserting rod 2 and an inner embedded rod 3 which are nested inside and outside, the bottom end of the inner embedded rod 3 is fixedly connected with a conical material guide part 4, the outer side wall of the outer inserting rod 2 is provided with a plurality of transverse anchoring rods 5, the inner ends of the transverse anchoring rods are bonded on the outer side wall of the inner embedded rod 3, and the bottom end of the repairing rod 1 is inserted into the inner bottom of the repairing groove cavity;
s3, injecting a preheated crack repairing agent into the repairing groove cavity through the inner embedded rod 3, enabling the crack repairing agent to seep out from a discharge port on the conical material guide part 4 and fill the repairing groove cavity, enabling the inner ends of the plurality of transverse anchoring rods 5 to be sequentially separated from the inner embedded rod 3 and the outer insertion rod 2 due to heating in the process of pouring the crack repairing agent, and enabling the plurality of transverse anchoring rods 5 to be embedded in the crack repairing agent;
s4, after the crack repairing agent injected for the first time is solidified to 40-55%, the outer insertion rod 2 is upwards pulled out, the crack repairing agent is poured into the repairing groove cavity through the inner embedded rod 3 again, the crack repairing agents poured for the two times are mutually fused to form a concrete material supplementing layer 6 in the repairing groove cavity, the inner embedded rod 3 exposed out of the repairing groove cavity is cut off, and the crack repairing end face is ground by using grinding equipment to be flat, so that the repairing of the concrete crack is completed.
Referring to fig. 3-7, specifically, the transverse anchoring rod 5 includes an embedded steel bar tube 501 located at the outer end of the outer insertion rod 2, the outer end of the embedded steel bar tube 501 is movably sleeved with a tapered anchoring tip 502, the inner end of the embedded steel bar tube 501 is connected with the outer insertion rod 2 through an embedded column 505, the inner end of the tapered anchoring tip 502 is fixedly connected with a high-strength elastic fiber rope 503 in a tensile state, the inner end of the high-strength elastic fiber rope 503 sequentially penetrates through the embedded column 505 and is connected with the inner embedded rod 3 in an adhesion manner, when the crack repairing agent is poured through the inner embedded rod 3, the crack repairing agent has a certain temperature, during the pouring process, the side wall of the inner embedded rod 3 is heated, at this time, the adhesion portion of the high-strength elastic fiber rope 503 and the inner embedded rod 3 is thermally melted, so that the high-strength elastic fiber rope 503 is separated from the outer wall of the inner embedded rod 3, and because the high-strength elastic fiber rope 503 is in a stretched, therefore, after the high-strength elastic fiber rope 503 is separated from the inner embedded rod 3, the conical anchoring tip 502 can move outwards under the action of inertia, so that the conical anchoring tip 502 can be inserted into the inner wall of the repair groove cavity under the action of impulsive force, transverse insertion is realized, and the anchoring effect is achieved.
Referring to fig. 6-7, an outer thermal fusion bonding portion 506 is disposed between the embedded steel reinforcement pipe 501 and the embedded column 505, the inner end of the high-strength elastic fiber rope 503 is connected to the outer wall of the outer embedded rod 2 through the inner thermal fusion bonding portion 504, the inner thermal fusion bonding portion 504 and the outer thermal fusion bonding portion 506 are thermally fused, since the inner thermal fusion bonding portion 504 is directly bonded to the inner embedded rod 3, when the high-strength elastic fiber rope 503 is not stretched and limited after the inner thermal fusion bonding portion 504 is thermally fused in the process of injecting the material through the inner embedded rod 3, the conical anchoring tip 502 at the outer end is inserted into the inner side of the repairing slot cavity, and the crack repairing agent introduced into the inner embedded rod 3 is introduced into the repairing slot cavity through the conical guiding portion 4, the thermal crack repairing agent thermally fuses the outer thermal fusion bonding portion 506 connected between the embedded steel reinforcement pipe 501 and the embedded column 505, after the crack repairing agent is gradually filled in the repairing groove cavity, the plurality of outer hot-melt bonding parts 506 distributed from bottom to top are sequentially hot-melted and disconnected, so that the plurality of embedded reinforcing steel tubes 501 are separated from the outer embedded rods 2 and are embedded in the crack repairing agent in a fusion manner.
More specifically, the outer thermal fusion bonding portion 506 and the inner thermal fusion bonding portion 504 are made of a thermal fusion material, through holes for sleeving the high-strength elastic fiber ropes 503 are formed in the embedding posts 505 and the outer thermal fusion bonding portion 506, anti-sticking layers are coated on the outer walls of the outer insertion rod 2 and the plurality of embedding posts 505, and excessive adhesion between the outer insertion rod 2 and the crack repairing agent is effectively avoided to a certain extent by the coated anti-sticking layers.
It should be added that the conical anchoring point 502 is provided with a conical cavity therein, the outer end of the embedded steel bar pipe 501 is movably connected in the conical cavity, the inner part of the front end of the conical cavity is provided with a hot-melt adhesive filling bag 507 closely connected with the front end of the embedded steel bar pipe 501, after the conical anchoring point 502 and the embedded steel bar pipe 501 move relatively, because the inner end of the embedded steel bar pipe 501 is connected with the hot-melt adhesive filling bag 507, when the conical anchoring point 502 moves towards the outside, the hot-melt adhesive filling bag 507 is pulled, when the hot-melt adhesive filling bag 507 is pulled and torn, the adhesive in the hot-melt adhesive filling bag is overflowed, the hot-melt adhesive filling bag 507 comprises an elastic bag sleeved in the conical cavity, the elastic bag is filled with adhesive, the tip part of the conical anchoring point 502 is provided with a plurality of material penetrating holes, the elastic bag is bonded with the steel bar embedded pipe 501 through an, after the elastic wire is broken by pulling, the elastic bag is cracked, so that the adhesive in the elastic bag overflows, and after the adhesive seeps out through the plurality of seepage holes, the joining strength between the embedded reinforcing steel pipe 501 and the conical anchoring tip 502 is effectively improved, the outer end of the conical anchoring tip 502 is effectively bonded with the repairing groove cavity, and the mechanical strength of the transverse connection between the conical anchoring tip and the repairing groove cavity is improved.
In addition, the multisection mosaic structure concatenation that outer inserted rod 2 and interior embedded rod 3 adopted inside and outside corresponding to set up forms, outer inserted rod 2 all adopts the heat conduction material to make with interior embedded rod 3, and follow supreme length of burying reinforcing bar pipe 501 underground that sets up down and increase progressively in proper order, it forms to set up multisection structure concatenation, be favorable to carrying out the concatenation of suitable size according to actual crack size and degree of depth, bury reinforcing bar pipe 501 underground and increase progressively in proper order from supreme length down, be favorable to being applicable to the repair vallecular cavity that is V type structure.
The invention is provided with an outer insert rod 2 and an inner embedded rod 3 through inner and outer sleeves, the inner embedded rod 3 is used for injecting crack repairing agent, a plurality of transverse anchoring rods 5 with the inner ends thereof bonded with the inner embedded rod 3 are distributed on the outer side wall of the outer insert rod 2 from bottom to top, when the heated crack repairing agent is injected into a repairing groove cavity through the inner embedded rod 3 and a conical material guide part 4, the inner embedded rod 3 is heated and transfers heat to the inner ends of the transverse anchoring rods 5, the inner ends of the transverse anchoring rods 5 are heated and melted and are respectively separated from the inner embedded rod 3 and the outer insert rod 2, the plurality of transverse anchoring rods 5 are distributed and embedded in the crack repairing agent, the outer tips of the transverse anchoring rods are inserted into the repairing groove cavity to play a role in anchoring, the outer insert rod 2 is pulled out upwards, secondary injection material forms a concrete material supplementing layer 6 in the crack repairing cavity, the inner embedded rod 3, the conical material guide part 4 and the plurality of transverse anchoring rods 5 are embedded in the repairing groove cavity, and a plurality of horizontal anchor rods 5 are distributed and embedded in the concrete material supplementing layer 6 from top to bottom, so that the horizontal bonding degree and the overall mechanical strength between the concrete material supplementing layer 6 and the repairing groove cavity are effectively enhanced to a certain extent, and the concrete material supplementing layer 6 is not easy to fall off from the repairing groove cavity.
The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (8)
1. A pre-buried anchoring type concrete crack repairing process is characterized by comprising the following steps: the method comprises the following steps:
s1, opening a repairing groove cavity along the position of the concrete crack, wherein the repairing groove cavity is preferably of a V-shaped structure and is cleaned;
s2, placing a repairing rod (1) into the repairing groove cavity, wherein the repairing rod (1) is composed of an outer inserting rod (2) and an inner embedded rod (3) which are nested inside and outside, the bottom end of the inner embedded rod (3) is fixedly connected with a conical material guide part (4), a plurality of transverse anchoring rods (5) with the inner ends bonded on the outer side wall of the inner embedded rod (3) are arranged on the outer side wall of the outer inserting rod (2), and the bottom end of the repairing rod (1) is inserted into the inner bottom of the repairing groove cavity;
s3, injecting a preheated crack repairing agent into the repairing groove cavity through the inner embedded rod (3), enabling the crack repairing agent to seep out from a discharge port on the conical material guide part (4) and fill the repairing groove cavity, enabling the inner ends of the transverse anchoring rods (5) to be sequentially separated from the inner embedded rod (3) and the outer insertion rod (2) due to heating in the process of pouring the crack repairing agent, and embedding the transverse anchoring rods (5) into the crack repairing agent;
s4, after the crack repairing agent injected for the first time is solidified to 40-55%, upwards pulling out the outer insertion rod (2), pouring the crack repairing agent into the repairing groove cavity through the inner embedded rod (3), forming a concrete repairing layer (6) in the repairing groove cavity after the crack repairing agents poured for the two times are mutually fused, cutting off the inner embedded rod (3) exposed out of the repairing groove cavity, and grinding the repairing end face of the crack by using grinding equipment to finish the repairing of the concrete crack.
2. The pre-buried anchoring type concrete crack repairing process according to claim 1, which is characterized in that: horizontal anchor pole (5) are including being located outer inserting rod (2) outer end bury reinforcing bar pipe (501) underground, the outer end activity cover of burying reinforcing bar pipe (501) underground is equipped with conical anchoring point (502), bury reinforcing bar pipe (501) underground the inner establish post (505) and outer inserting rod (2) link up mutually through inlaying, the inner fixedly connected with of conical anchoring point (502) is high strength elastic fiber rope (503) under the tensile state, the inner of high strength elastic fiber rope (503) runs through in proper order and inlays to establish post (505) and link up with interior embedded rod (3) adhesion.
3. The pre-buried anchoring type concrete crack repairing process according to claim 2, which is characterized in that: an outer hot melt bonding part (506) is arranged between the embedded reinforcing steel pipe (501) and the embedded column (505), and the inner end of the high-strength elastic fiber rope (503) is connected with the outer wall of the outer inserting rod (2) through the inner hot melt bonding part (504).
4. The pre-buried anchoring type concrete crack repairing process according to claim 3, which is characterized in that: the outer hot-melt bonding part (506) and the inner hot-melt bonding part (504) are both made of hot-melt materials, through holes for sleeving the high-strength elastic fiber ropes (503) are formed in the embedding columns (505) and the outer hot-melt bonding part (506), and anti-sticking layers are coated on the outer walls of the outer insertion rod (2) and the plurality of embedding columns (505).
5. The pre-buried anchoring type concrete crack repairing process according to claim 4, which is characterized in that: the conical anchoring tip (502) is internally provided with a conical cavity, the outer end of the embedded steel bar pipe (501) is movably connected in the conical cavity, and the inside of the front end of the conical cavity is provided with a hot melt adhesive filling bag (507) closely connected with the front end of the embedded steel bar pipe (501).
6. The pre-buried anchoring type concrete crack repairing process according to claim 5, which is characterized in that: the anchor device is characterized in that the anchor device (701) comprises an elastic bag sleeved inside a conical cavity, a binder is filled inside the elastic bag, and a plurality of material seepage holes are formed in the tip part of the conical anchoring tip (502).
7. The pre-buried anchoring type concrete crack repairing process according to claim 6, which is characterized in that: the elastic bags are bonded with the embedded steel pipes (501) through elastic wires.
8. The pre-buried anchoring type concrete crack repairing process according to claim 7, which is characterized in that: outer inserted bar (2) and interior embedded rod (3) adopt the concatenation of the inside and outside multisection mosaic structure who corresponds the setting to form, outer inserted bar (2) all adopt the heat conduction material to make with interior embedded rod (3), and follow the supreme length of burying reinforcing bar pipe (501) underground that sets up from down and increase progressively in proper order and set up.
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