CN218233592U - In-service foundation repairing and reinforcing device - Google Patents

Abstract

The utility model provides an in-service foundation repairing and reinforcing device, which comprises a plurality of ECC prefabricated parts, wherein the ECC prefabricated parts are sequentially connected to form a reinforcing sleeve surrounding the periphery of an in-service foundation, and a pouring cavity is formed by the ECC prefabricated parts and the in-service foundation; and a plurality of bulges are uniformly and convexly arranged on the inner side surface of each ECC prefabricated part facing the in-service foundation at intervals, so that the inner side surface of each ECC prefabricated part facing the in-service foundation is of a horse tooth rubbing structure. This reinforcing apparatus is restoreed to foundation in active service can effectively consolidate the weak position of degradation on the foundation in active service, improves the corrosion resistance of basis, prevents the further corrosion damage of basis, and reduces the on-the-spot construction time.

Description

In-service foundation repairing and reinforcing device

Technical Field

The utility model relates to an at labour basis restoration technical field, concretely relates to at labour basis restoration reinforcing apparatus.

Background

Under the long-term service of the concrete foundation, the concrete foundation is influenced by the freezing and thawing environment and the saline soil area, the surface of the concrete foundation can be corroded to different degrees within the range of plus or minus 1 meter of the terrace, and the saline solution permeates and soaks into the concrete through the pores or capillary action of the concrete material. When the temperature rises, water in the salt solution evaporates, salt is separated out and crystallized, the volume is increased, the concrete material generates huge internal stress, and the concrete is cracked and damaged when the internal stress exceeds the tensile strength of the concrete material. The cracking of the concrete opens a channel for the immersion of the salt solution, and the damage of the concrete is accelerated. In addition, after the salt solution is immersed in the concrete, harmful ions cause chemical corrosion and electrochemical corrosion of reinforcing steel bars in the concrete foundation. The increase of the rust volume also increases the internal stress of the concrete, thereby generating longitudinal cracks along the main reinforcing steel bar direction and causing structural damage.

Due to aging and deterioration of concrete, the durability of the concrete is reduced, the concrete is damaged in different degrees, some surface concrete is peeled off, and more serious reinforcing steel bars are exposed outside and are rusted seriously. The peeling of the surface concrete of the foundation main column inevitably causes the reduction of the mechanical property of the concrete, so that the power transmission tower is in a dangerous state, and the method has important significance for the reinforcement and repair research of the aged power transmission tower foundation.

In the prior art, the in-service foundation is usually repaired by grouting cracks around the foundation, which can only temporarily repair the cracks, but is affected by concentrated stress generated by fatigue load, corrosion of salt solution and the like, new cracks are easily generated on the surface of the in-service foundation again, the in-service foundation is frequently repaired, the labor intensity is increased, and a large amount of manpower is consumed. In addition, in the prior art, the foundation is repaired by adopting a grouting mode, the form is generally required to be disassembled after the concrete pouring is finished, the steps are complicated, and the field construction time is long.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned problem that exists at least, provide a repair strengthening device in labour's basis, it can be effectively consolidated the weak position of degradation on labour's basis, improves the corrosion resistance on basis, prevents the further corruption destruction on basis, and reduces the site operation time.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

an in-service foundation repair reinforcing device comprises a plurality of ECC prefabricated members, wherein the ECC prefabricated members are sequentially connected to form a reinforcing sleeve for surrounding the periphery of an in-service foundation, and a pouring cavity is formed between the ECC prefabricated members and the in-service foundation; and a plurality of bulges are uniformly and convexly arranged on the inner side surface of each ECC prefabricated part facing the in-service foundation at intervals, so that the inner side surface of each ECC prefabricated part facing the in-service foundation is of a horse tooth rubbing structure.

Furthermore, the ECC prefab includes cladding plate and leak protection flange, and a plurality of the cladding plate of ECC prefab encircles and meets in proper order in the periphery of foundation in service, the cladding plate has relative first surface and the second surface that sets up, the second surface is equipped with towards the direction of back to the first surface protrudingly the arch reaches the leak protection flange, the bottom of second surface is located to the leak protection flange protrudingly, the length that the leak protection flange is protruding to be stretched out the second surface is greater than the length that the arch is protruding to be stretched out the second surface.

Furthermore, the pouring cavity is used for pouring a cast-in-place layer, so that the ECC prefabricated member is fixedly connected with the in-service foundation through the cast-in-place layer.

Furthermore, the in-service foundation repair reinforcing device comprises four ECC prefabricated parts, each ECC prefabricated part is in a square plate shape, and the four ECC prefabricated parts are sequentially connected to form a hollow reinforcing sleeve in a cube shape.

Furthermore, the in-service foundation repair reinforcing device comprises at least two ECC prefabricated members, each ECC prefabricated member is arc-shaped and plate-shaped, and the at least two ECC prefabricated members are connected to form a hollow cylindrical reinforcing sleeve in a surrounding mode.

Furthermore, the in-service foundation repair reinforcing device comprises two ECC prefabricated parts, each ECC prefabricated part is in an L-shaped plate shape, and the two ECC prefabricated parts are connected to form a hollow reinforcing sleeve in a cube shape in an enclosing mode.

Furthermore, the periphery of the reinforcing sleeve is also wound with carbon fiber cloth to reinforce the hoop of the reinforcing sleeve.

Further, the bulges of two adjacent ECC prefabricated members are arranged in a staggered mode.

Furthermore, two adjacent bulges enclose an inserting groove, and the end part of the bulge of the ECC prefabricated member is inserted into one inserting groove of the adjacent ECC prefabricated member.

Furthermore, one side of each ECC prefabricated part is provided with a positioning bump, one side of each ECC prefabricated part, which is opposite to the positioning bump, is provided with a positioning groove, and the positioning bump of each ECC prefabricated part is spliced with the positioning groove of the adjacent ECC prefabricated part.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. according to the in-service foundation repairing and reinforcing device, the ECC prefabricated member is adhered to the periphery of the in-service foundation to reinforce the repaired foundation, and the ECC prefabricated member is wrapped on the periphery of the to-be-repaired part of the in-service foundation, so that the durability, the corrosion resistance and the crack resistance of the in-service foundation are improved, the weak degradation position of the in-service foundation is effectively reinforced, and the foundation is prevented from being further corroded and damaged; and because the ECC prefab can be prefabricated in the factory in advance, consequently, can practice thrift on-the-spot engineering time, improve the efficiency of construction.

2. Above-mentioned at labour basis restoration reinforcing apparatus in repair process, a plurality of ECC prefabs and enclose between the labour basis and enclose into and pour the cavity, the ECC prefab is fixed with the labour basis in through the cast-in-place layer of pouring in the cavity, and when cast-in-place, the ECC prefab can regard as the cast-in-place template of concrete, and cast-in-place back ECC prefab combines with the concrete and does not need to demolish as a whole, and it is more convenient to be under construction. In addition, the side of the ECC prefabricated part facing to the in-service foundation is of a horse-tooth rubbing structure, so that the ECC prefabricated part can be bonded with the cast-in-place layer more stably and reliably.

3. Above-mentioned reinforcing apparatus is restoreed on labour basis, the bottom of its ECC prefab is equipped with the leak protection flange, when cast-in-place layer is pour, the leak protection flange can contact with the periphery wall on labour basis, effectively prevents to pour the concrete material in the cavity and reveals.

Drawings

Fig. 1 is a schematic structural view of an in-service foundation repairing and reinforcing device according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the in-service foundation repair reinforcement device shown in fig. 1, after the carbon fiber cloth is removed.

Fig. 3 is a top view of the in-service foundation repair and reinforcement device shown in fig. 2.

Fig. 4 isbase:Sub>A sectional view ofbase:Sub>A portion of the in-service foundation repair reinforcement device shown in fig. 3 taken along linebase:Sub>A-base:Sub>A.

Fig. 5 is a perspective view of the reinforcing sleeve in the in-service foundation repairing and reinforcing device according to the first embodiment of the present invention.

Fig. 6 is a schematic view of a portion of the reinforcing sleeve shown in fig. 5.

Fig. 7 is a bottom view of the in-service foundation repair reinforcement device shown in fig. 2.

Fig. 8 is a left side view of the reinforcement sleeve shown in fig. 6.

Fig. 9 is a perspective view of a reinforcing sleeve in a foundation in service repairing and reinforcing device according to a second embodiment of the present invention.

Fig. 10 is a schematic view of the reinforcement sleeve of fig. 9 from another perspective.

Fig. 11 is a schematic view of a portion of the structure of the reinforcement sleeve of fig. 9.

Fig. 12 is an exploded view of a reinforcement sleeve in an in-service foundation repair reinforcement device according to a third embodiment of the present invention.

Fig. 13 is a top view of the reinforcement sleeve of fig. 12.

Fig. 14 is an exploded view of a reinforcement sleeve in an in-service foundation repair reinforcement device according to a fourth embodiment of the present invention.

Description of the main elements

10. Reinforcing the sleeve; 11. an ECC prefabricated part; 112. a first ECC preform; 114. a second ECC preform; 115. a first plate body; 116. a second plate body; 12. a cladding sheet; 121. a first surface; 123. a second surface; 124. an installation part; 125. positioning the bump; 126. positioning a groove; 13. a leak-proof flange; 14. pouring a cavity; 15. a cast-in-place layer; 16. a protrusion; 160. inserting grooves; 17. carbon fiber cloth; 20. and (4) on the basis of service.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is said to "splice" another component, it may be directly spliced to the other component or intervening components may be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 and fig. 2, a first embodiment of the present invention provides an in-service foundation repairing and reinforcing device, which includes a plurality of ECC prefabricated members 11, wherein the ECC prefabricated members 11 are connected in sequence to form a reinforcing sleeve 10, and the reinforcing sleeve 10 is used to surround the periphery of an in-service foundation 20; a pouring cavity 14 is defined by the ECC prefabricated members 11 and the in-service foundation 20, and the reinforcing sleeve 10 and the to-be-repaired part of the in-service foundation 20 are fixed in a cast-in-place mode through concrete poured in the pouring cavity 14.

In the embodiment, the in-service foundation repair reinforcing device comprises four ECC prefabricated members 11, each ECC prefabricated member 11 is in a square plate shape, and the four ECC prefabricated members 11 are sequentially connected end to form a hollow reinforcing sleeve 10 in a cube shape. Referring to fig. 3, 5 to 7, specifically, in the present embodiment, the four ECC prefabricated components 11 include two first ECC prefabricated components 112 and two second prefabricated components 114, the two first ECC prefabricated components 112 are disposed oppositely, the two second prefabricated components 114 are disposed oppositely, and two opposite sides of the first ECC prefabricated component 112 are respectively connected to the two second prefabricated components 114. Each ECC preform 11, i.e. each first ECC preform 112 and each second ECC preform 114, includes a cladding plate 12 and a leakage-proof flange 13, the cladding plate 12 has a first surface 121 and a second surface 123 disposed oppositely, wherein the second surface 123 faces the casting cavity 14. Cladding plates 12 of a plurality of ECC prefabricated members 11 surround the periphery of the foundation 20 and are sequentially connected to form the reinforcing sleeve 10. The inner wall of reinforcing sleeve 10, i.e. second surface 123 of cladding plate 12, and in-service foundation 20 enclose casting cavity 14. The reinforcing sleeve 10 and the to-be-repaired part of the in-service foundation 20 are fixed by cast-in-place concrete, and referring to fig. 4 together, in the present embodiment, the casting cavity 14 is used for casting concrete to form a cast-in-place layer 15, specifically, the concrete material cast by the casting cavity 14 of the present embodiment is an ECC material, the cast-in-place layer 15 is formed after the cast-in-place ECC material is solidified, and the ECC prefabricated member 11 is fixedly connected with the in-service foundation 20 through the cast-in-place layer 15.

In the present embodiment, the leakage preventing flange 13 is substantially horizontally disposed in an elongated shape, and the leakage preventing flange 13 is protruded from the bottom end of the second surface 123 and is protruded from the second surface 123 toward a direction away from the first surface 121. The leakage prevention flange 13 can contact the outer periphery of the in-service foundation 20 to prevent the ECC material in the casting cavity 14 from leaking during casting.

Each ECC prefabricated member 11, i.e. each first ECC prefabricated member 112 and each second prefabricated member 114, is provided with a plurality of protrusions 16 protruding at regular intervals on the side facing the in-service foundation 20, so that the side facing the in-service foundation 20 of the ECC prefabricated member 11 is of a horse-tooth-shaped structure. In the present embodiment, the protrusions 16 are protruded on the second surface 123 of the cladding plate 12 and are protruded from the second surface 123 toward a direction away from the first surface 121; each projection 16 is substantially horizontally disposed elongated, and the cross section of the projection 16 is substantially rectangular. The protrusions 16 of two adjacent ECC preforms 11, i.e. the first ECC preform 112 and the second ECC preform 114, are arranged in a staggered manner along the height direction of the fixing sleeve 10. Referring to fig. 8, in the present embodiment, the length L2 of the protrusion 16 protruding out of the second surface 123 is smaller than the length L1 of the leakage-proof flange 13 protruding out of the second surface 123, so that the ECC prefabricated member 11 can be smoothly installed on the outer periphery of the in-service foundation 20 and forms the cast-in-place cavity 14 for casting concrete in situ. Preferably, the distance between the side of the protrusion 16 facing away from the first surface 121 and the first surface 121 is about 3-4cm, and the difference between the length L1 of the leakage-proof flange 13 protruding out of the second surface 123 and the length L2 of the protrusion 16 protruding out of the second surface 123 is about 10mm, i.e. L1-L2 ≈ 10mm, which can make the ECC prefabricated member 11 have sufficient strength, make the concrete poured into the cast-in-place cavity 14 more stable with the ECC prefabricated member 11, and save the amount of the cast-in-place concrete in the cast-in-place cavity 14. It is understood that the sizes of L1, L2 and ECC module 11 may be set to other values according to actual needs.

In this embodiment, two opposite ends of the protrusion 16 on the first ECC preform 112 extend to two opposite sides of the corresponding cladding plate 12, respectively, and two opposite ends of the leakage-proof flange 13 on the first ECC preform 112 extend to two opposite sides of the corresponding cladding plate 12, respectively, that is, the lengths of the protrusion 16 and the leakage-proof flange 13 on the first ECC preform 112 are substantially the same as the width of the corresponding cladding plate 12; the two opposite sides of the cladding plate 12 of the second ECC prefabricated member 114 are both provided with mounting portions 124, and the protrusion 16 and the leakage-proof flange 13 on the second ECC prefabricated member 114 are both arranged between the mounting portions 124 on the two opposite sides of the second ECC prefabricated member 114. The installation parts 124 on the two opposite sides of the second ECC prefabricated part 114 can be respectively connected with the end parts of the two adjacent first ECC prefabricated parts 112, so that the leakage-proof performance of the fixing sleeve 10 during cast-in-place concrete is improved, and the outer peripheral wall of the fixing sleeve 10 is smooth and more attractive.

Referring to fig. 1 again, in the present embodiment, the outer circumference of the reinforcing sleeve 10 is further wrapped with a carbon fiber cloth 17 to reinforce the hoop of the reinforcing sleeve 10. Specifically, the carbon fiber cloth 17 is bonded to the four ECC preforms 11, that is, the first surfaces 121 of the two first ECC preforms 112 and the two second preforms 114, by using resin-impregnated adhesive, and the purpose of enhancing the bearing capacity and strength of the in-service foundation 20 is achieved by using the good tensile strength of the carbon fiber material. The carbon fiber cloth 17 is available from the market as it is, and will not be described herein for brevity.

The in-service foundation repair and reinforcement device of the embodiment is used for repairing and reinforcing an in-service foundation 20 with a rectangular cross section, and when in use, the device substantially comprises the following steps:

s1, excavating earthwork near an in-service foundation 20 to be repaired, wherein the excavation size is approximately 1-2 times of the section of the in-service foundation 20, the depth is 0.8-1m, and reinforcing and repairing construction is facilitated;

s2, cleaning soil residues on the side surface of the in-service foundation 20, slightly chiseling the concrete side wall around the in-service foundation 20, flushing the side wall of the in-service foundation 20 by using a high-pressure water gun, and starting repairing and reinforcing after air drying;

s3, temporarily supporting the ECC prefabricated member 11, enabling four ECC prefabricated members 11 to surround the to-be-repaired part of the in-service foundation 20, enabling a leakage-proof flange 13 of each ECC prefabricated member 11 to be in contact with the outer wall of the in-service foundation 20, and forming a pouring cavity 14 between a cladding plate 12 of each ECC prefabricated member 11 and the outer side wall of the in-service foundation 20; then, an ECC material higher than the ECC prefabricated member 11 is poured into the pouring cavity 14 in situ, so that the ECC prefabricated member 11 is fixed with the in-service foundation 20. The temporary supporting method in step S3 belongs to the prior art, and is not described herein for brevity.

And S4, backfilling earthwork and finishing construction.

The ECC, namely the PVA fiber cement-based composite material has strong durability, strong corrosion resistance, strong crack resistance, good crack harmless dispersion capability, frost resistance, salt freeze resistance and strong tensile property. According to the in-service foundation repairing and reinforcing device, the ECC prefabricated member 11 is adhered to the periphery of the in-service foundation 20 to reinforce and repair the foundation, and the ECC prefabricated member 11 is wrapped on the periphery of the to-be-repaired part of the in-service foundation 20, so that the durability, the corrosion resistance and the crack resistance of the in-service foundation 20 are improved, the weak degradation position of the in-service foundation 20 is effectively reinforced, and the foundation is prevented from being further corroded and damaged; and because ECC prefab 11 can be prefabricated in the mill in advance, can practice thrift on-the-spot engineering time, improve the efficiency of construction.

In the repair process of the in-service foundation repair reinforcing device, a pouring cavity 14 is defined by the ECC prefabricated members 11 and the in-service foundation 20, the ECC prefabricated members 11 are fixed with the in-service foundation 20 through cast-in-place layers 15 poured in the pouring cavity 14, the ECC prefabricated members 11 can be used as ECC cast-in-place templates when the ECC is cast in place, and the ECC cast-in-place templates and the ECC prefabricated members 11 are combined into a whole without being disassembled after being cast in place, so that the construction is more convenient; in addition, the side surface of the ECC prefabricated member 11 facing the in-service foundation 20 is of a horse tooth rubbing structure, so that the ECC prefabricated member 11 and the cast-in-place layer 15 can be bonded more firmly and reliably. In addition, the bulges 16 of the two adjacent ECC prefabricated members 11 are arranged in a staggered mode, so that the connection stability of the ECC prefabricated members 11 and the cast-in-place layer 15 can be further improved.

According to the in-service foundation repairing and reinforcing device, the leakage-proof flange 13 is arranged at the bottom of the ECC prefabricated member 11, when the cast-in-place layer 15 is poured, the leakage-proof flange 13 can be in contact with the outer peripheral wall of the in-service foundation 20, and the ECC material in the pouring cavity 14 is effectively prevented from leaking.

Example 2

Referring to fig. 9 to 11 together, a second embodiment of the present invention provides an in-service foundation repairing and reinforcing device, which has a structure substantially the same as that of the in-service foundation repairing and reinforcing device of the first embodiment, and includes a plurality of ECC prefabricated members 11 for repairing and reinforcing a rectangular section foundation, with the difference in the number and shape of the ECC prefabricated members 11. In this embodiment, the in-service foundation repair reinforcement device includes two ECC prefabricated members 11, each ECC prefabricated member 11 has an L-shaped cross section, the two ECC prefabricated members 11 are connected to each other to form a hollow reinforcement sleeve 10 in a cube shape, a casting cavity 14 is formed by the ECC prefabricated members 11 and the in-service foundation 20, and the reinforcement sleeve 10 and the to-be-repaired portion of the in-service foundation 20 are fixed by casting concrete poured into the casting cavity 14.

In this embodiment, each ECC prefabricated component 11 includes a first board 115 and a second board 116 that are vertically fixed, where the first board 115 and the second board 116 also include a cladding plate 12 and a leakage-proof flange 13, and cladding plate 12 of first board 115 is vertically fixed to one side of cladding plate 12 of second board 116, where cladding plate 12 has a first surface 121 and a second surface 123 that are oppositely disposed, and second surface 123 faces pouring cavity 14. The leakage preventing flange 13 is protruded from the bottom end of the second surface 123 and is protruded from the second surface 123 toward a direction opposite to the first surface 121. The first board 115 and the second board 116 are provided with a plurality of protrusions 16 at regular intervals on the side facing the in-service foundation 20, so that the ECC prefabricated component 11 is in a horse-tooth-shaped structure on the side facing the in-service foundation 20. In the present embodiment, the projection 16 and the leakage preventing flange 13 are both formed in a substantially horizontally elongated shape, and the cross section of the projection 16 is trapezoidal. One end of the protrusion 16 and one end of the leakage-proof flange 13 both extend to one side of the corresponding first plate 115 facing away from the second plate 116, and the other end of the protrusion 16 and the other end of the leakage-proof flange 13 are both spaced apart from one side of the corresponding second plate 116 facing away from the first plate 115 to form an installation part 124 for connecting with the end of another ECC prefabricated member 11, so that the leakage-proof performance of the fixing sleeve 10 during cast-in-place concrete is improved, and the peripheral wall of the fixing sleeve 10 is smooth and more beautiful.

In the embodiment, two adjacent protrusions 16 enclose the insertion groove 160, and the end of the protrusion 16 of the ECC prefabricated member 11 is inserted into one insertion groove 160 of the adjacent ECC prefabricated member 11, so as to mount and position the two ECC prefabricated members 11, which is beneficial to improving the mounting accuracy of the ECC prefabricated member 11.

Example 3

Referring to fig. 12 to 13 together, a third embodiment of the present invention provides an in-service foundation repair reinforcement device, which has a structure substantially the same as that of the in-service foundation repair reinforcement device of the first embodiment, and includes a plurality of ECC preforms 11, with the difference in the number and shape of the ECC preforms 11. In the embodiment, the in-service foundation repair reinforcing device comprises two ECC prefabricated members 11, each ECC prefabricated member 11 is in a semicircular plate shape, and the two ECC prefabricated members 11 are connected to enclose a hollow cylindrical reinforcing sleeve 10 for repairing and reinforcing the in-service foundation 20 with a circular section.

In the present embodiment, each ECC preform 11 also includes a cladding plate 12 and a leakage-proof flange 13, where the cladding plate 12 has a first surface 121 and a second surface 123 opposite to each other, and the second surface 123 faces the casting cavity 14; the leakage-proof flange 13 is convexly arranged at the bottom end of the second surface 123 and convexly arranged from the second surface 123 towards the direction back to the first surface 121; the side of each ECC prefabricated member 11 facing the in-service foundation 20 is convexly provided with a plurality of protrusions 16 at regular intervals, so that the side of the ECC prefabricated member 11 facing the in-service foundation 20 is of a horse teeth rubbing structure. In the present embodiment, the projection 16 and the leakage preventing flange 13 are both elongated and are arranged substantially vertically, and the cross section of the projection 16 is substantially trapezoidal.

It should be understood that when the repair reinforcement device is used for repairing and reinforcing an in-service foundation 20 with a circular cross section, the number and shape of the ECC preforms 11 are not limited to the embodiment, for example, the in-service foundation repair reinforcement device may also include two or more ECC preforms 11, each ECC preform 11 has an arc-shaped plate shape, and the two or more ECC preforms 11 are connected to each other to form a reinforcement sleeve 10 with a hollow cylindrical shape.

Example 4

Referring to fig. 14, the fourth embodiment of the present invention provides an in-service foundation repairing and reinforcing apparatus, which has a structure substantially the same as the in-service foundation repairing and reinforcing apparatus of the third embodiment, and includes a plurality of ECC prefabricated members 11, the difference lies in that: in this embodiment, one side of each ECC prefabricated member 11 is provided with a positioning protrusion 125, one side of each ECC prefabricated member 11 opposite to the positioning protrusion 125 is provided with a positioning groove 126, and the positioning protrusion 125 of each ECC prefabricated member 11 is inserted into the positioning groove 126 of the adjacent ECC prefabricated member 11. Through the cooperation of constant head tank 126 and location lug 125, can fix a position ECC prefab 11's relative position when ECC prefab 11 installs, further improve the precision of ECC prefab 11 installation, improve the restoration quality.

It can be understood that the shape and the number of the ECC prefabricated member 11 can be set to other shapes and numbers according to the shape and the size of the in-service foundation 20 to be repaired, and the present invention is not limited thereto.

It is understood that the shape of the protrusion 16 can be other shapes as desired, and the invention is not limited thereto.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (10)

1. The in-service foundation repair reinforcing device is characterized by comprising a plurality of ECC prefabricated members (11), wherein the ECC prefabricated members (11) are sequentially connected to form a reinforcing sleeve (10) surrounding the periphery of an in-service foundation (20), and a pouring cavity (14) is formed between the ECC prefabricated members (11) and the in-service foundation (20); a plurality of bulges (16) are uniformly and convexly arranged on the inner side surface of each ECC prefabricated part (11) facing the in-service foundation (20) at intervals, so that the inner side surface of each ECC prefabricated part (11) facing the in-service foundation (20) is of a horse tooth rubbing structure.

2. The in-service foundation repair reinforcement device according to claim 1, wherein the ECC preforms (11) comprise cladding plates (12) and leakage-proof flanges (13), the cladding plates (12) of a plurality of the ECC preforms (11) surround the periphery of the in-service foundation (20) and are sequentially connected, the cladding plates (12) have first surfaces (121) and second surfaces (123) which are arranged oppositely, the second surfaces (123) are provided with the protrusions (16) and the leakage-proof flanges (13) in a protruding manner in a direction away from the first surfaces (121), the leakage-proof flanges (13) are provided at bottom ends of the second surfaces (123) in a protruding manner, and the length of the leakage-proof flanges (13) protruding out of the second surfaces (123) is greater than the length of the protrusions (16) protruding out of the second surfaces (123).

3. The in-service foundation repair reinforcement device according to claim 1, wherein the casting cavity (14) is used for casting a cast-in-place layer (15) so as to fixedly connect the ECC prefabricated member (11) with the in-service foundation (20) through the cast-in-place layer (15).

4. The in-service foundation repair reinforcement device according to claim 1, characterized in that the in-service foundation repair reinforcement device comprises four ECC preforms (11), each ECC preform (11) is in a square plate shape, and the four ECC preforms (11) are connected in sequence to form a hollow reinforcement sleeve (10) in a cube shape.

5. The in-service foundation repair reinforcement device according to claim 1, comprising at least two ECC preforms (11), each ECC preform (11) having an arc-shaped plate shape, wherein the at least two ECC preforms (11) are connected to form a hollow cylindrical reinforcement sleeve (10).

6. The in-service foundation repair reinforcement device according to claim 1, comprising two ECC preforms (11), each ECC preform (11) having an L-shaped plate shape, wherein the two ECC preforms (11) are connected to form a hollow reinforcement sleeve (10) in a cube shape.

7. The in-service foundation repair reinforcement device of claim 1, wherein the reinforcement sleeve (10) is further wrapped with carbon fiber cloth (17) at the periphery thereof to reinforce the hoop of the reinforcement sleeve (10).

8. The in-service foundation repair reinforcement device according to claim 1, wherein the projections (16) of two adjacent ECC preforms (11) are staggered.

9. The in-service foundation repair reinforcement device according to claim 8, wherein two adjacent protrusions (16) define an insertion groove (160), and an end of the protrusion (16) of the ECC preform (11) is inserted into an insertion groove (160) of the adjacent ECC preform (11).

10. The in-service foundation repair reinforcement device according to claim 1, wherein one side of each ECC preform (11) is provided with a positioning bump (125), one side of each ECC preform (11) opposite to the positioning bump (125) is provided with a positioning groove (126), and the positioning bump (125) of each ECC preform (11) is inserted into the positioning groove (126) of the adjacent ECC preform (11).

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