Method and structure for trenchless rehabilitation of concrete pipes with water

Abstract

The application discloses a kind of concrete pipeline trenchless water repair method and structure, the method comprises: digging and opening or cutting concrete pipeline to form shaft;Through the shaft, hoist bracket and inner lining pipe;Each section of inner lining pipe is set to be non-inner flange pipe consisting of equal-diameter pipe body and socket pipe smaller than the diameter of pipe body and being arranged at one end of pipe body, the inner lining pipe connected to the previous section of inner lining pipe and its front part are pushed into concrete pipeline by rolling forward on the roller of bracket, the next section of inner lining pipe is bolted and connected on the previous section of inner lining pipe at pipe opening, until all sections of inner lining pipe are connected and pushed into concrete pipeline to form total inner lining pipe of predetermined length;Grouting is carried out between concrete pipeline and total inner lining pipe, and bracket is casted in it to form grouting layer.The application has small construction difficulty, low risk and high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a trenchless water-bearing repair method and structure for a concrete pipe. Background Art

[0002] Concrete pipes are used in water conservancy projects such as sewage discharge. Due to the influence of various substances mixed in the discharged sewage, concrete pipes may experience quality problems such as exposed and corroded steel bars, loss of coarse and fine aggregates, and peeling of caulking materials. Therefore, concrete pipes with quality problems need to be repaired. The conventional repair method for concrete pipes is: repair without water, that is, a middle pipe for temporary discharge is set in the concrete pipe, the middle pipe is replaced for temporary discharge, and the inner lining pipe is formed by welding the spliced ​​inner lining sheets in the concrete pipe. Then, grouting is injected into the inner lining pipe and the concrete pipe. After the grouting reaches the hardening standard, the repaired concrete pipe is replaced for discharge. A method for repairing a concrete pipe with water is also provided in this field, which comprises welding a stainless steel liner pipe with an inner flange to the inner wall of the concrete pipe, pushing each section of the liner pipe to the position to be repaired in the concrete pipe through a sliding platform, and connecting adjacent liner pipes by bolts through the inner flange in the narrow environment of the repair position. The sliding platform is removed from the concrete pipe, and then grouting is injected between the concrete pipe and the total length of the liner pipe. After the grouting material reaches the hardness standard, all the inner flanges at the interfaces of the adjacent liner pipes are cut and removed, and the joints between the adjacent liner pipes from which the inner flanges have been removed are welded. Its disadvantages are: the bolt connection, cutting construction and welding operations of two adjacent sections of liner pipes are all carried out in the area where the repair position is far away from the wellhead. The operating space in the liner pipe is narrow, and the bolt connection, cutting operation and welding operation are difficult and inconvenient to operate. In addition, the operation in the area where the repair position is far away from the wellhead has poor air density, which affects the operating safety of the construction workers, and there is a greater construction risk and poor safety. In addition, the bolt connection, cutting construction and welding operations are all carried out under normal discharge conditions. Water and other emissions will penetrate into the liner pipe from the concrete pipe. The workers perform bolt connection, cutting inner flanges and welding seams in the water in the concrete pipe and the liner pipe, which makes them unstable in standing, affects the operation, and creates construction obstacles. Summary of the Invention

[0003] The purpose of the present invention is to provide a trenchless water-containing repair method and structure for concrete pipes, so as to solve the problems of difficult and risky connection construction at the nodes of adjacent liner pipes in concrete pipes, the complex construction process at the nodes of two adjacent sections of traditional liner pipes with internal flanges, and the difficulty and inconvenience of removing liner pipes through traditional sliding platforms during water-containing repair construction in concrete pipes.

[0004] In order to solve the above technical problems, the present invention provides a trenchless water-containing repair method for concrete pipes, comprising:

[0005] Dig down and open or cut off the concrete pipe below to form a shaft;

[0006] A bracket is hoisted through a hoistway and arranged on the inner wall of the lower chord surface of the concrete pipe along the axial length direction of the concrete pipe, wherein the bracket includes at least two guide rails symmetrically distributed on the inner wall of the lower chord surface of the concrete pipe along the axial center of the concrete pipe, and rollers evenly spaced along the length direction of each guide rail;

[0007] Each section of the liner pipe is configured as a non-inner flange pipe consisting of a pipe body of equal diameter and a bell-and-spigot pipe provided at one end of the pipe body and having a smaller diameter than the pipe body; one end of the bell-and-spigot pipe is configured as a first port of the liner pipe, and the other end of the pipe body is configured as a second port of the liner pipe; the first port of the liner pipe is uniformly provided with internal bolt holes penetrating the pipe wall along its circumferential direction; the second port of the liner pipe is uniformly provided with external bolt holes penetrating the pipe wall along its circumferential direction; the external bolt holes are configured to match the internal bolt holes;

[0008] Each section of the liner pipe is hoisted in sequence in the same axial direction through the well, and the previous section of the liner pipe and the liner pipe connected to the front are rolled forward and pushed into the concrete pipe by the rollers on the bracket. When the first section of the liner pipe is used as the previous section of the liner pipe, only the previous section of the liner pipe is rolled forward and pushed into the concrete pipe by the rollers on the bracket; the next section of the liner pipe is hoisted and placed at the pipe mouth formed by the opening or cutoff of the concrete pipe, and the next section of the liner pipe is connected to the previous section of the liner pipe at the pipe mouth by a socket-type connection;

[0009] After aligning the outer bolt holes and inner bolt holes of the two adjacent inner liner pipe sections after the socket-and-spigot connection, insert bolts to securely connect the two adjacent inner liner pipe sections by bolts, so that the two adjacent inner liner pipe sections form a socket-and-spigot bolt connection structure, and push the rear inner liner pipe section, the front inner liner pipe section, and the inner liner pipe section connected to it together into the concrete pipe through the bracket until all the inner liner pipe sections are connected and pushed into the concrete pipe to form a total inner liner pipe of a predetermined length;

[0010] Grouting is performed between the concrete pipe and the main liner pipe, and the bracket is poured inside to form a grouting layer to perform trenchless water-bearing repair on the concrete pipe.

[0011] Furthermore, the trenchless water-containing repair method for concrete pipes provided by the present invention sequentially hoists each section of the liner pipe in the axial direction with the first port in front and the second port in the back, and inserts the first port of the latter section of the liner pipe into the second port of the former section of the liner pipe to form a socket connection.

[0012] Furthermore, the trenchless water-containing repair method for concrete pipes provided by the present invention sequentially hoists each section of the liner pipe in the axial direction with the second port in front and the first port in the back, and sleeves the second port of the latter section of the liner pipe onto the first port of the former section of the liner pipe to form a socket-type connection.

[0013] Furthermore, in the trenchless water-containing repair method for concrete pipes provided by the present invention, when the front and rear sections of the liner pipes are connected in a socket-type manner, the second port of one section of the liner pipe is aligned with the pipe body end face of the first port of the other section of the liner pipe, so that the socket pipe serving as the first port is wrapped in the other section of the liner pipe so that the front and rear sections of the liner pipes are seamlessly connected.

[0014] Furthermore, in the trenchless water-containing repair method for concrete pipes provided by the present invention, the guide rails of the bracket are arranged on the concrete pipes via anchoring pieces.

[0015] In order to solve the above technical problems, the present invention also provides a trenchless water-filled concrete pipe repair structure, comprising:

[0016] The main liner pipe is arranged in a concrete pipe and includes multiple sections of liner pipes connected by socket and spigot bolts. Each section of the liner pipe includes a pipe body of equal diameter and a socket pipe arranged at one end of the pipe body and smaller than the diameter of the pipe body. One end of the socket pipe is a first port of the liner pipe, and the other end of the pipe body is a second port of the liner pipe. The first port of the liner pipe is uniformly provided with inner bolt holes penetrating its pipe wall along its circumferential direction, and the second port of the liner pipe is uniformly provided with outer bolt holes penetrating its pipe wall along its circumferential direction. The outer bolt holes are matched with the inner bolt holes. The first and second ports of two adjacent sections of the liner pipe are connected by socket and spigot. The two adjacent sections of the liner pipe connected by socket and spigot are connected by bolts penetrating the outer bolt holes on the second port and the inner bolt holes on the first port, so that the two adjacent sections of the liner pipe constitute a socket and spigot bolt connection structure.

[0017] Grouting layer, poured between the concrete pipe and the main lining pipe;

[0018] The bracket is located in the grouting layer and is arranged on the inner wall of the lower chord surface of the concrete pipe along the axial length direction of the concrete pipe. The bracket includes at least two guide rails symmetrically distributed on the inner wall of the lower chord surface of the concrete pipe along the axial center of the concrete pipe, and rollers evenly spaced along the length direction of each guide rail.

[0019] Furthermore, in the trenchless water-repair structure for concrete pipes provided by the present invention, bolts are provided on the outer circumference of the inner liner pipe.

[0020] Furthermore, in the trenchless water-repair structure for concrete pipes provided by the present invention, the pipe body and the socket pipe are distributed in a stepped manner.

[0021] Furthermore, in the trenchless water-repair structure for concrete pipes provided by the present invention, the guide rails are arranged on the concrete pipes via anchors.

[0022] Furthermore, in the trenchless water-repair structure for concrete pipes provided by the present invention, the anchoring piece is an expansion bolt.

[0023] Compared with the prior art, the trenchless water-filled concrete pipe repair method and structure provided by the present invention have the following beneficial effects:

[0024] First, each section of the liner pipe is set as a non-inner flange pipe consisting of a pipe body of equal diameter and a socket pipe set at one end of the pipe body and smaller than the diameter. Then, the nodes of the two adjacent sections of the liner pipe can be seamlessly connected by socket-type, which improves the speed of connection between the two adjacent sections of the liner pipe. The two sections of the liner pipe connected by socket are fixedly connected by bolts to form a socket-type bolt connection structure, which improves the reliability of the connection between the two adjacent sections of the liner pipe. The bracket is set as a structural form of at least two guide rails and the rollers thereon and fixedly set on the concrete pipe. Then, the previous section of the liner pipe and the liner pipe connected to the front of it are pushed deep into the concrete pipe by rolling on the rollers. This not only reduces the difficulty of transporting the sections of the liner pipe before and after the connection, but also enables the next section of the liner pipe to be connected to the previous section of the liner pipe by socket-type bolts at the pipe mouth of the well. Both the ventilation environment and the operating space are improved, thereby reducing the difficulty of connecting the two adjacent sections of the liner pipe and reducing the construction risk. It avoids the complicated construction process of traditional inner flange type liner pipes when connecting at the node, which requires bolt connection in the concrete pipe, cutting the inner flange and welding at the joint after cutting the inner flange. Construction workers do not need to go deep into the concrete pipe to connect adjacent liner pipes in the environment with poor air density, poor ventilation conditions and water, thereby ensuring the personal safety of construction workers.

[0025] 2. Grouting between the main lining pipe and the concrete pipe to form a grouting layer can improve the repair quality and effect of the concrete pipe.

[0026] 3. The installation of the bracket is carried out in a water environment, and the connection and transportation of the liner pipe are all carried out at the pipe mouth, which improves the efficiency of the repair construction, reduces the workload of construction workers in the water environment, reduces the difficulty of connecting the liner pipe, and reduces the safety risks of construction workers working underwater.

[0027] 4. The bracket is cast in the grouting layer as a part of the grouting layer. On the one hand, it improves the casting strength of the grouting layer. On the other hand, after the concrete pipe repair construction, there is no need to remove the bracket, which not only simplifies the construction process but also reduces the difficulty of repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a cross-sectional structural diagram of a trenchless repair structure for a concrete pipe;

[0029] Figure 2 yes Figure 1 Cross-section at AA in the middle;

[0030] Figure 3 It is a schematic diagram of the planar structure of the bracket;

[0031] Figure 4 The bracket is installed on the concrete pipe. Figure 3 Cross-section at the middle BB;

[0032] Figure 5 This is a schematic diagram of the structure of adjacent sections before the liner pipes are connected;

[0033] Figure 6 This is a schematic diagram of the structure of adjacent sections of liner pipes after connection;

[0034] Figure 7 Schematic diagram of the cross-sectional structure of the liner pipe;

[0035] As shown in the figure:

[0036] 100. Concrete pipes;

[0037] 200, grouting layer;

[0038] 300, inner liner, 310, pipe body, 311, outer bolt hole, 320, bell pipe, 321, inner bolt hole, 330, bolt;

[0039] 400, bracket, 410, guide rail, 420, roller;

[0040] 500, bolts;

[0041] 600. Piped water. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are all in a very simplified form and are not accurately scaled, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0043] Please refer to Figures 1 to 6 The embodiment of the present invention provides a trenchless water-filled concrete pipe repair method, which may include the following steps:

[0044] Step 701: dig downwards and open or cut off the concrete pipe below to form a shaft.

[0045] Step 702, please refer to Figures 1 to 6 The bracket 400 is hoisted through the hoistway and positioned on the inner wall of the lower chord surface of the concrete pipe 100 along the axial length of the concrete pipe. The bracket 400 includes at least two guide rails 410 symmetrically distributed along the axial center of the concrete pipe 100 on the inner wall of the lower chord surface of the concrete pipe 100, and rollers 420 evenly spaced along the length of each guide rail 410. To improve the rolling transmission effect, the rollers 420 can be bearings.

[0046] Step 703, please refer to Figures 5 and 6 Each section of the liner pipe 300 is set as a non-inner flange pipe consisting of a pipe body 310 of equal diameter and a bell pipe 320 arranged at one end of the pipe body 310 and smaller than the diameter of the pipe body 310. One end of the bell pipe 320 is set as the first port of the liner pipe 300 ( Figure 5 The other end of the tube body 310 is set as the second port of the inner liner tube 300 ( Figure 5 The first end of the inner liner 300 is provided with inner bolt holes 321 uniformly arranged along its circumference, and the second end of the inner liner 300 is provided with outer bolt holes 311 uniformly arranged along its circumference, and the outer bolt holes 311 are matched with the inner bolt holes 321. The inner liner 300 is a stainless steel tube.

[0047] Step 704, please refer to Figures 5 and 6 , each section of the liner pipe 300 is hoisted in sequence in the same axial direction through the well, and the previous section of the liner pipe 300 and the liner pipe 300 connected in front of it are rolled forward and pushed into the concrete pipe 100 through the roller 420 on the bracket 400. When the first section of the liner pipe 300 is used as the previous section of the liner pipe 300, only the previous section of the liner pipe 300 is rolled forward and pushed into the concrete pipe 100 through the roller 420 on the bracket 400, that is, the front of the first section of the liner pipe 300 is not connected; after the liner pipe 300 is hoisted, it is placed at the pipe mouth formed by the opening or cutoff of the concrete pipe 100, and the next section of the liner pipe 300 is connected to the previous section of the liner pipe 300 at the pipe mouth by socket and spigot. The spigot-and-socket connection means that each section of the liner pipe 300 is sequentially hoisted in the axial direction with the first port at the front and the second port at the rear, and the first port of the subsequent section of the liner pipe 300 is inserted and connected to the second port of the previous section of the liner pipe 300; or each section of the liner pipe 300 is sequentially hoisted in the axial direction with the second port at the front and the first port at the rear, and the second port of the subsequent section of the liner pipe 300 is sleeved onto the first port of the previous section of the liner pipe 300. In short, the spigot-and-socket connection 320 of one section of the liner pipe 300 is inserted and fitted into another section of the liner pipe 300.

[0048] Step 705, please refer to Figures 5 and 6 After aligning the outer bolt hole 311 with the inner bolt hole 321 of the front and rear sections of the liner pipe 300 after the socket-type connection, insert the bolt 500 to fix the adjacent front and rear sections of the liner pipe 300 with the bolt 500, so that the adjacent two sections of the liner pipe 300 form a socket-type bolt connection structure, and push the rear section of the liner pipe 300, the front section of the liner pipe 300 and the liner pipe 300 connected in front of it into the concrete pipe 100 together through the bracket 400, until all sections of the liner pipe 300 are connected and pushed into the concrete pipe 100 to form a total liner pipe of a predetermined length.

[0049] Step 706, please refer to Figure 1 Grouting is performed between the concrete pipe 100 and the main liner pipe, and the bracket 400 is poured therein to form a grouting layer 200 to perform trenchless water-bearing repair on the concrete pipe 100. The height of the bracket 400 can be less than or equal to the thickness of the grouting layer 200.

[0050] Please refer to Figures 5 and 6 To achieve reliable connection between liner pipes 300, the trenchless water-filled concrete pipe repair method provided by the embodiment of the present invention uses a spigot-and-socket connection between two liner pipe sections 300. The second end of one liner pipe section 300 is aligned with the end face of the pipe body 310 at the first end of the other liner pipe section 300, thereby enclosing the spigot-and-socket pipe 320, which serves as the first end, within the other liner pipe section 300, resulting in a seamless connection between the two liner pipe sections 300. This seamless connection ensures better sealing at the joints of the connected liner pipes 300.

[0051] To secure the bracket 400 to the concrete pipe 100, the embodiment of the present invention provides a trenchless concrete pipe repair method with water in the water. The guide rail 410 of the bracket 400 is secured to the concrete pipe 100 using anchors such as expansion bolts. Since the guide rail 410 is installed under water, it is not suitable for gluing.

[0052] Please refer to Figures 1 to 6 The embodiment of the present invention further provides a trenchless water-repair structure for a concrete pipe 100, comprising a grouting layer 200, a main liner pipe 300, and a bracket 400, wherein:

[0053] Please refer to Figure 1 、 Figures 5 and 6The total inner lining pipe is arranged in the concrete pipe 100, and includes multiple inner lining pipes 300 connected by socket bolts 500. Each inner lining pipe 300 includes a pipe body 310 of equal diameter and a socket pipe 320 arranged at one end of the pipe body 310 and smaller than the diameter of the pipe body 310. One end of the socket pipe 320 is the first port of the inner lining pipe 300, and the other end of the pipe body 310 is the second port of the inner lining pipe 300. The first port of the inner lining pipe 300 is uniformly provided with through holes along its circumferential direction. The inner bolt hole 321 in the pipe wall, the second port of the inner liner pipe 300 is evenly provided with outer bolt holes 311 penetrating the pipe wall along its circumferential direction, the outer bolt holes 311 are matched with the inner bolt holes 321, the first port and the second port of the two adjacent sections of the inner liner pipe 300 are connected in a socket-type manner, and the two adjacent sections of the inner liner pipe 300 connected in a socket-type manner are connected by bolts 500 penetrating the outer bolt hole 311 on the second port and the inner bolt hole 321 on the first port, so that the two adjacent sections of the inner liner pipe 300 constitute a socket-type bolt connection structure.

[0054] Please refer to Figure 1 The grouting layer 200 is poured between the concrete pipe 100 and the main liner pipe.

[0055] Please refer to Figures 1 to 6 The bracket 400 is located in the grouting layer 200 and is arranged on the inner wall of the lower chord surface of the concrete pipe 100 along the axial length direction of the concrete pipe 100. The bracket 400 includes at least two guide rails 410 symmetrically distributed on the inner wall of the lower chord surface of the concrete pipe 100 along the axial center of the concrete pipe 100, and rollers 420 evenly spaced along the length direction of each guide rail 410.

[0056] Please refer to Figure 7 In order to improve the pouring quality of the grouting layer 200, the grouting layer 200 has better bonding with the inner lining pipe 300. The concrete pipe trenchless water repair structure provided by the embodiment of the present invention has bolts 330 arranged on the outer circumference of the inner lining pipe 300.

[0057] Please refer to Figure 5 In the trenchless concrete pipe water repair structure provided by the embodiment of the present invention, the pipe body 310 and the spigot 320 are arranged in a stepped manner. That is, the connection between the pipe body 310 and the spigot 320 is not suitable for a continuous variable cross-section body.

[0058] In the trenchless water-repair structure for concrete pipes provided by an embodiment of the present invention, the guide rail 410 is provided on the concrete pipe 100 by anchoring members such as expansion bolts.

[0059] The trenchless water-containing repair method and structure for concrete pipes provided in an embodiment of the present invention configure each section of the liner pipe 300 as a non-inner flange pipe consisting of a pipe body 310 of equal diameter and a socket pipe 320 arranged at one end of the pipe body 310 and smaller in diameter than the pipe body 310. The nodes of two adjacent sections of the liner pipe 300 can be seamlessly connected in a socket-and-spigot manner, thereby improving the speed of connection between the two adjacent sections of the liner pipe 300. The two sections of the liner pipe 300 connected in a socket-and-spigot manner are fixedly connected by bolts 500 to form a socket-and-spigot bolt connection structure, thereby improving the reliability of the connection between the two adjacent sections of the liner pipe 300. The bracket 400 is set to a structure in which at least two guide rails 410 and rollers 420 thereon are fixedly set on the concrete pipe 100, so that the previous section of the liner pipe 300 and the liner pipe 300 connected in front of it are pushed into the concrete pipe 100 by rolling through the rollers 420, which not only reduces the difficulty of transporting the sections of the liner pipe 300 before and after the connection, but also enables the latter section of the liner pipe 300 to be connected to the previous section of the liner pipe 300 at the pipe mouth of the wellbore by socket bolts 500. Both the ventilation environment and the operating space are improved, thereby reducing the difficulty of connecting the two adjacent sections of the liner pipe 300 and reducing the construction risk. The complicated construction process of connecting the traditional inner flange type liner pipe 300 at the node, which requires the bolt 500 connection, the inner flange cutting and the welding at the joint after the inner flange cutting, is avoided. The construction workers do not need to go deep into the concrete pipe 100 to connect the adjacent liner pipes 300 in the environment with poor air density, poor ventilation conditions and water, thereby ensuring the personal safety of the construction workers.

[0060] The trenchless water-containing repair method and structure for concrete pipes provided in the embodiment of the present invention forms a grouting layer 200 by grouting between the main liner pipe and the concrete pipe 100 , which can improve the repair quality and effect of the concrete pipe 100 .

[0061] The embodiment of the present invention provides a trenchless water-containing repair method and structure for concrete pipes. The bracket 400 is installed in a water-containing environment, and the connection and transportation of the liner pipe 300 are both performed at the pipe mouth, thereby improving the efficiency of the repair construction, reducing the workload of construction workers in the water-containing environment, reducing the difficulty of connecting the liner pipe 300, and reducing the safety risks of construction workers working underwater.

[0062] In the trenchless water-containing repair method and structure for concrete pipes provided by the embodiments of the present invention, the bracket 400 is cast in the grouting layer 200 as a part of the grouting layer 200. On the one hand, the casting strength of the grouting layer 200 is improved. On the other hand, after the concrete pipe 100 is repaired, there is no need to remove the bracket 400, which not only simplifies the construction process but also reduces the difficulty of repair.

[0063] Please refer to Figure 1 The trenchless water-filled concrete pipe repair method and structure provided by the embodiment of the present invention exemplifies the case where the elevation of the pipe water 600 is 40 cm.

[0064] The present invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only some embodiments of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention described, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A trenchless water-filled concrete pipe repair method, characterized in that: include: Dig down and open or cut off the concrete pipe below to form a shaft; A bracket is hoisted through a hoistway and arranged on the inner wall of the lower chord surface of the concrete pipe along the axial length direction of the concrete pipe, wherein the bracket includes at least two guide rails symmetrically distributed on the inner wall of the lower chord surface of the concrete pipe along the axial center of the concrete pipe, and rollers evenly spaced along the length direction of each guide rail; Each section of the liner pipe is configured as a non-inner flange pipe consisting of a pipe body of equal diameter and a bell-and-spigot pipe provided at one end of the pipe body and having a smaller diameter than the pipe body; one end of the bell-and-spigot pipe is configured as a first port of the liner pipe, and the other end of the pipe body is configured as a second port of the liner pipe; the first port of the liner pipe is uniformly provided with internal bolt holes penetrating the pipe wall along its circumferential direction; the second port of the liner pipe is uniformly provided with external bolt holes penetrating the pipe wall along its circumferential direction; the external bolt holes are configured to match the internal bolt holes; Each section of the liner pipe is hoisted in sequence in the same axial direction through the well, and the previous section of the liner pipe and the liner pipe connected to the front are rolled forward and pushed into the concrete pipe by the rollers on the bracket. When the first section of the liner pipe is used as the previous section of the liner pipe, only the previous section of the liner pipe is rolled forward and pushed into the concrete pipe by the rollers on the bracket; the next section of the liner pipe is hoisted and placed at the pipe mouth formed by the opening or cutoff of the concrete pipe, and the next section of the liner pipe is connected to the previous section of the liner pipe at the pipe mouth by a socket-type connection; After aligning the outer bolt holes and inner bolt holes of the two adjacent inner liner pipe sections after the socket-and-spigot connection, insert bolts to securely connect the two adjacent inner liner pipe sections by bolts, so that the two adjacent inner liner pipe sections form a socket-and-spigot bolt connection structure, and push the rear inner liner pipe section, the front inner liner pipe section, and the inner liner pipe section connected to it together into the concrete pipe through the bracket until all the inner liner pipe sections are connected and pushed into the concrete pipe to form a total inner liner pipe of a predetermined length; Grouting is performed between the concrete pipe and the main liner pipe, and the bracket is poured inside to form a grouting layer to perform trenchless water-bearing repair on the concrete pipe.

2. The trenchless water-filled concrete pipe repair method according to claim 1, characterized in that: Lift each section of the unlined pipe in sequence in the axial direction with the first port in front and the second port in the back, and insert the first port of the rear section of the liner pipe into the second port of the front section of the liner pipe to form a socket connection.

3. The trenchless water-filled concrete pipe repair method according to claim 1, characterized in that: Lift each section of the liner pipe in sequence in the axial direction with the second port in front and the first port in the back, and sleeve the second port of the rear section of the liner pipe onto the first port of the front section of the liner pipe to form a socket connection.

4. The trenchless water-filled concrete pipe repair method according to claim 1, characterized in that: When the front and rear sections of the inner liner pipe are connected in a socket-type manner, the second port of one section of the inner liner pipe is aligned with the pipe body end face of the first port of the other section of the inner liner pipe, so that the socket pipe serving as the first port is wrapped in the other section of the inner liner pipe to make the front and rear sections of the inner liner pipe seamlessly connected.

5. The trenchless water-containing repair method for concrete pipes according to claim 1, characterized in that: The guide rails of the bracket are arranged on the concrete pipe through anchoring pieces.

6. A concrete pipe trenchless water repair structure, characterized in that: include: The main liner pipe is arranged in a concrete pipe and includes multiple sections of liner pipes connected by socket and spigot bolts. Each section of the liner pipe includes a pipe body of equal diameter and a socket pipe arranged at one end of the pipe body and smaller than the diameter of the pipe body. One end of the socket pipe is a first port of the liner pipe, and the other end of the pipe body is a second port of the liner pipe. The first port of the liner pipe is uniformly provided with inner bolt holes penetrating its pipe wall along its circumferential direction, and the second port of the liner pipe is uniformly provided with outer bolt holes penetrating its pipe wall along its circumferential direction. The outer bolt holes are matched with the inner bolt holes. The first and second ports of two adjacent sections of the liner pipe are connected by socket and spigot. The two adjacent sections of the liner pipe connected by socket and spigot are connected by bolts penetrating the outer bolt holes on the second port and the inner bolt holes on the first port, so that the two adjacent sections of the liner pipe constitute a socket and spigot bolt connection structure. Grouting layer, poured between the concrete pipe and the main lining pipe; The bracket is located in the grouting layer and is arranged on the inner wall of the lower chord surface of the concrete pipe along the axial length direction of the concrete pipe. The bracket includes at least two guide rails symmetrically distributed on the inner wall of the lower chord surface of the concrete pipe along the axial center of the concrete pipe, and rollers evenly spaced along the length direction of each guide rail.

7. The trenchless water-repair structure for concrete pipes according to claim 6, characterized in that: The outer circumference of the inner liner pipe is provided with pegs.

8. The trenchless water-repair structure for concrete pipes according to claim 6, characterized in that: The pipe body and the bell pipe are distributed in a stepped manner.

9. The trenchless water-repair structure for concrete pipes according to claim 6, characterized in that: The guide rail is arranged on the concrete pipe through an anchoring piece.

10. The trenchless water-repair structure for concrete pipes according to claim 9, characterized in that: The anchoring piece is an expansion bolt.

Images