A method of repairing an arcuate inverted siphon with a lining pipe

Abstract

The application discloses a repairing method of an arc-shaped inverted siphon with a lining pipe, which comprises the following steps: digging a working well at the upstream of an inverted siphon to be repaired; digging a grouting hole downwards on the ground directly above the inverted siphon to be repaired, wherein the grouting hole penetrates the top inner wall of the inverted siphon to be repaired; pushing a lining pipe with an outer diameter smaller than the inner diameter of the inverted siphon to be repaired into the inverted siphon to be repaired in the working well, and reserving a slurry accommodating space between the outer wall of the lining pipe and the inner wall of the inverted siphon to be repaired; after the lining pipe is installed, blocking structures are arranged at the two ends of the inverted siphon to be repaired, the two ends of the inverted siphon to be repaired are blocked, slurry is injected into the slurry accommodating space from the grouting hole, and after the slurry in the slurry accommodating space is solidified, the blocking structures at the two ends of the inverted siphon to be repaired are removed. The application improves the repairing efficiency, avoids the cost caused by large-area excavation, and ensures that the inverted siphon is more safely and effectively operated.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of inverted siphon repair construction, and particularly relates to a repair method of an arc-shaped inverted siphon with an inner lining pipe. BACKGROUND

[0002] When a channel is close to the elevation of a road or a ditch and is in a plane intersection, a structure needs to be repaired to make water pass under the road or the ditch, and this structure is usually called an inverted siphon. That is, the inverted siphon is a pressure water conveying inverted siphon arranged when a channel passes through a valley, a river and a road or other channels, and is one of important buildings of a water diversion and farmland irrigation and distribution project. The inverted siphon repair work is also more and more complicated.

[0003] In the prior art, when the damaged inverted siphon is repaired, a direct excavation construction method is usually used for repair, that is, a direct destructive removal and patch repair are used. This method is greatly constrained by the surface topographic conditions, especially with the development of cities, the underground pipe network is also more and more complex, the road surface above the inverted siphon needs to be excavated in the whole line, and the repair efficiency is low and the cost is high. SUMMARY

[0004] In view of the problems in the prior art, the present application provides a repair method of an arc-shaped inverted siphon with an inner lining pipe, which improves the repair efficiency, avoids the economic cost caused by large-area excavation, and ensures that the inverted siphon is more safe and effective in operation.

[0005] In order to solve the above technical problems, the present application is realized by the following technical scheme:

[0006] A repair method of an arc-shaped inverted siphon with an inner lining pipe, comprising:

[0007] Excavating a working well at the upstream of the inverted siphon to be repaired;

[0008] Excavating a grouting hole downward on the ground directly above the inverted siphon to be repaired, and the grouting hole penetrates the top inner wall of the inverted siphon to be repaired;

[0009] In the working well, a plurality of inner lining pipes with an outer diameter smaller than the inner diameter of the inverted siphon to be repaired are pushed into the inverted siphon to be repaired in sequence, flexible clamps are used to connect adjacent two inner lining pipes, and a slurry accommodating space is reserved between the outer wall of each inner lining pipe and the inner wall of the inverted siphon to be repaired;

[0010] After the inner lining pipe is installed, a plugging structure is arranged at both ends of the inverted siphon to be repaired to plug both ends of the inverted siphon to be repaired;

[0011] Slurry is injected into the slurry accommodating space from the grouting hole;

[0012] After the slurry in the slurry accommodating space is solidified, the blocking structure at the two ends of the inverted siphon to be repaired is removed.

[0013] Further, before the inner lining pipes are pushed into the inverted siphon to be repaired in sequence, a support ring is sleeved on the outer wall of each inner lining pipe, and a plurality of supports are arranged on the outer side of the support ring in the circumferential direction.

[0014] Further, a plurality of pulleys are arranged on the bottom of the outer side of the support ring.

[0015] Further, a fastener for tightly pressing the support ring on the inner lining pipe is arranged on the outer side of the support ring.

[0016] Further, before the slurry is injected into the slurry accommodating space, a support is installed in the inner lining pipe.

[0017] Further, after the blocking structure at the two ends of the inverted siphon to be repaired is removed, the support installed in the inner lining pipe is removed.

[0018] Further, each support is a cross support.

[0019] Further, every 10-20 m along the direction in which the inverted siphon to be repaired extends, a grouting hole is arranged on the ground directly above the inverted siphon to be repaired.

[0020] Further, the slurry is foamed concrete.

[0021] Compared with the prior art, the present application has at least the following beneficial effects:

[0022] The arc-shaped inverted siphon inner lining pipe repair method provided by the present application only needs to dig a working well upstream of the inverted siphon to be repaired and open a grouting hole downward on the ground directly above the inverted siphon to be repaired, and then a plurality of inner lining pipes are installed into the inverted siphon to be repaired in sequence by using the working well, and flexible clamps are used to connect adjacent two inner lining pipes during installation, and then the two ends of the inverted siphon to be repaired are blocked, and then slurry is injected into the slurry accommodating space through the grouting hole, and the slurry connects the inner lining pipes and the inverted siphon to be repaired into one, so that the inverted siphon repair is realized, and the entire inverted siphon after repair realizes uniform pressure bearing, and the pressure bearing capacity of the inverted siphon is effectively improved while the inverted siphon repair is completed. The inner lining pipes are connected by flexible clamps, which can adapt to the arc shape of the inverted siphon in the arc-shaped inverted siphon, effectively solve the inner lining pipe repair of the arc-shaped inverted siphon, and at the same time, the ground above the inverted siphon does not need to be excavated in a large area, the destructiveness is small, the influence area of the inverted siphon construction is small, the construction is convenient, the repair effect is good, the application range is wide, which is beneficial to improve the construction efficiency, prolong the service life of the inverted siphon, and has high economic efficiency.

[0023] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application, the following will briefly introduce the drawings needed to be used in the specific embodiment description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Fig. 1 It is a schematic diagram of the vertical plane arrangement during the construction of the repair method of the arc-shaped inverted siphon plus lining pipe of the present application.

[0026] Fig. 2 It is a schematic diagram of the plane arrangement during the construction of the repair method of the arc-shaped inverted siphon plus lining pipe of the present application.

[0027] Fig. 3 It is a schematic diagram of the support ring structure of the lining pipe used in the construction of the repair method of the arc-shaped inverted siphon plus lining pipe of the present application.

[0028] In the figure: 1-support ring; 2-pulley; 3-support; 4-fastener; 5-inverted siphon; 6-lining pipe; 7-grouting hole; 8-inverted siphon base; 9-slurry containing space; 10-supporting member; 11-working well; 12-plugging structure; 13-flexible clamp. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be described in detail below in combination with the drawings. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0030] As a specific embodiment of the present application, in combination with Figs. 1-3 the schematic diagram of the repair method of the arc-shaped inverted siphon plus lining pipe of the present application is shown, which specifically includes the following steps:

[0031] Step 1, a working well 11 is dug upstream of the inverted siphon 5 to be repaired to provide a working space for subsequent repair construction. Specifically, after the working well 11 is dug, the sewage and sludge in the inverted siphon 5 to be repaired are cleaned first.

[0032] Step 2, a grouting hole 7 is formed downward on the ground directly above the inverted siphon 5 to be repaired, and the grouting hole 7 penetrates the top inner wall of the inverted siphon 5 to be repaired. That is, the grouting hole 7 is drilled into the ground and into the inverted siphon 5 to be repaired, and then the slurry is directly injected into the inverted siphon 5 to be repaired through the grouting hole 7.

[0033] Preferably, on the ground directly above the inverted siphon 5 to be repaired, an injection hole 7 is formed every 10-20m along the direction of the inverted siphon 5 to be repaired, ensuring that the slurry can fill the slurry containing space 9 during subsequent grouting, and better fixing the inner liner pipe 6.

[0034] Step 3, in the working well 11, several inner liner pipes 6 with smaller outer diameter than the inner diameter of the inverted siphon 5 to be repaired are pushed into the inverted siphon 5 to be repaired in sequence, and flexible clamps 13 are used to connect adjacent two inner liner pipes 6, and the outer wall of each inner liner pipe 6 is controlled to have a slurry containing space 9 reserved between the outer wall and the inner wall of the inverted siphon 5 to be repaired.

[0035] Specifically, the inner liner pipe 6 is pre-processed and manufactured, and before the inner liner pipe 6 is pushed into the inverted siphon 5 to be repaired in sequence, a support ring 1 is sleeved on the outer wall of each inner liner pipe 6, and a plurality of supports 3 are arranged on the outer side of the support ring 1 in the circumferential direction, and the supports 3 are used for radially positioning the inner liner pipe 6, preventing the size of the slurry containing space 9 reserved between the outer wall of the inner liner pipe 6 and the inner wall of the inverted siphon 5 to be repaired from being uniform. It should be noted that when the inner liner pipe 6 is located at the center position of the inverted siphon 5 to be repaired, each support 3 does not contact the inner wall of the inverted siphon 5 to be repaired, and a small gap is reserved to prevent the support 3 from rubbing against the inner wall of the inverted siphon 5 to be repaired during the process of pushing the inner liner pipe 6 into the inverted siphon 5 to be repaired.

[0036] Preferably, in order to facilitate the pushing of the inner liner pipe 6 into the inverted siphon 5 to be repaired, a plurality of pulleys 2 are arranged at the bottom of the outer side of the support ring 1.

[0037] In the embodiment, the outer side of the support ring 1 is provided with a fastener 4 for clamping the support ring 1 on the inner liner pipe 6, that is, the support ring 1 is clamped on the inner liner pipe 6 by the fastener 4.

[0038] More specifically, when installing the inner liner pipe 6 into the inverted siphon 5 to be repaired, the inner liner pipe 6 is hung in the upstream excavated working well 11, and the pulley 2 on the support ring 1 is used to support the inner liner pipe 6 into the inverted siphon 5 to be repaired, according to the length of the inverted siphon 5 to be repaired, the inner liner pipe 6 is hung and supported in sections, and the flexible clamps 13 are used to connect the inner liner pipes in sections, which can adapt to the circular arc inverted siphon, until the length requirement of the inverted siphon 5 to be repaired is met, and each pipe section should be installed smoothly and firmly along the water slope.

[0039] Step 4, after the installation of the inner lining pipe 6, the plugging structure 12 is arranged at both ends of the inverted siphon 5 to be repaired, so that the both ends of the inverted siphon 5 to be repaired are plugged to avoid the leakage of the grout during the grouting, and the plugging needs to have a certain strength.

[0040] Step 5, the grout is injected into the grout containing space 9 from the grouting hole 7.

[0041] Preferably, in order to prevent the deformation of the inner lining pipe 6 caused by the impact of the grout during the grouting, the support 10 is arranged in the inner lining pipe 6 before the grout is injected into the grout containing space 9, and the support 10 can reinforce the inner lining pipe 6 to prevent deformation and deviation.

[0042] In the embodiment, as shown in Fig. 1 The support 3 is a cross support frame, the grout is foamed concrete, and the foamed concrete can sufficiently connect the inverted siphon 5 to be repaired and the inner lining pipe 6 to strengthen the inverted siphon and the durability.

[0043] Step 6, after the grout in the grout containing space 9 is solidified, the plugging structure 12 at both ends of the inverted siphon 5 to be repaired is removed, and after the plugging structure 12 at both ends of the inverted siphon 5 to be repaired is removed, the support 10 arranged in the inner lining pipe 6 is removed, and the repair work of the inverted siphon and the inner lining pipe is completed.

[0044] After the repair is completed, the working well 11 is filled and compacted.

[0045] The repair method of the inverted siphon and the inner lining pipe disclosed by the application has small destructiveness, small influence area of the inverted siphon construction, convenient construction, good repair effect, wide application range, and is beneficial to improve the construction efficiency, prolong the service life of the inverted siphon, and has high economic efficiency. The repair method provided by the application can adapt to the arc shape of the inverted siphon, does not affect the road traffic and the navigation of the river during the construction, has no environmental damage, has a short construction period, effectively saves the engineering investment, has good quality of the repaired inverted siphon, meets the requirements of green environmental protection and safe construction, and can save the cost.

[0046] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any person skilled in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for repairing an arc-shaped inverted siphon with an inner liner, characterized in that, include: A working well (11) is excavated upstream of the inverted siphon (5) to be repaired. A grouting hole (7) is opened downward on the ground directly above the inverted siphon (5) to be repaired, and the grouting hole (7) penetrates the top inner wall of the inverted siphon (5) to be repaired; Before pushing a number of inner liner tubes (6) with an outer diameter smaller than the inner diameter of the inverted siphon (5) to be repaired into the inverted siphon (5) in sequence, a support ring (1) is fitted onto the outer wall of each inner liner tube (6), and a number of supports (3) are provided circumferentially on the outer side of the support ring (1). Inside the working well (11), several inner lining pipes (6) fitted with support rings (1) are pushed into the inverted siphon (5) to be repaired in sequence. The two adjacent inner lining pipes (6) are connected by flexible clamps (13) to control that there is a slurry-accommodating space (9) reserved between the outer wall of each inner lining pipe (6) and the inner wall of the inverted siphon (5) to be repaired. Several inner lining tubes (6) with an outer diameter smaller than the inner diameter of the inverted siphon (5) to be repaired are pushed into the inverted siphon (5) to be repaired in sequence. The two adjacent inner lining tubes (6) are connected by a flexible clamp (13) to control that there is a slurry-accommodating space (9) reserved between the outer wall of each inner lining tube (6) and the inner wall of the inverted siphon (5) to be repaired. After the inner liner (6) is installed, a sealing structure (12) is set at both ends of the inverted siphon (5) to be repaired to seal both ends of the inverted siphon (5); Grout is injected from the grouting hole (7) into the grout receiving space (9), and the grout is foamed concrete; After the slurry in the slurry-containing space (9) has solidified, remove the sealing structures (12) at both ends of the inverted siphon (5) to be repaired.

2. The repair method for an arc-shaped inverted siphon with an inner liner according to claim 1, characterized in that, Several pulleys (2) are provided at the bottom of the outer side of the support ring (1).

3. The repair method for an arc-shaped inverted siphon with an inner liner according to claim 1, characterized in that, Fasteners (4) are provided on the outer side of the support ring (1) for pressing the support ring (1) against the inner liner tube (6).

4. The repair method for an arc-shaped inverted siphon with an inner liner according to claim 1, characterized in that, Before injecting slurry into the slurry receiving space (9), a support (10) is installed inside the liner tube (6).

5. The repair method for an arc-shaped inverted siphon with an inner liner according to claim 4, characterized in that, After removing the sealing structures (12) at both ends of the inverted siphon (5) to be repaired, remove the support (10) installed inside the inner liner (6).

6. The repair method for an arc-shaped inverted siphon with an inner liner according to claim 4, characterized in that, Each of the brackets (3) is a cross-shaped support frame.

7. The repair method for an arc-shaped inverted siphon with an inner liner according to claim 1, characterized in that, On the ground directly above the inverted siphon (5) to be repaired, a grouting hole (7) is opened every 10m to 20m along the direction of the extension of the inverted siphon (5) to be repaired.

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