Concrete conveying system of pipe jacking sleeve

Abstract

The concrete conveying system comprises an outer jacking pipe and an inner sleeve, a plurality of jacking pipe connecting plates located above the inner sleeve are arranged on the outer jacking pipe in the longitudinal direction, the jacking pipe connecting plates are connected with a supporting frame, a plurality of rows of pipeline supports are arranged on the supporting frame, and concrete conveying pipes are arranged on the pipeline supports. The construction method has the beneficial effects that the construction quality is improved, specifically, the concrete conveying pipe is fixed through the arch-shaped connecting plate, the supporting frame and the support, stability of the conveying pipe is ensured, construction normalization is improved, pipeline displacement is avoided, and it is ensured that concrete is poured evenly and fully; the structure is simple, installation is convenient, and flexible adjustment can be achieved according to construction requirements; and through the design of the expandable supporting frame, the pipe jacking construction requirements of different scales can be met, and the construction applicability is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe jacking construction, and particularly relates to a concrete conveying system for a pipe jacking sleeve. BACKGROUND

[0002] In the pipe jacking construction process, a construction method of filling the cavity of the pipe jacking with concrete is usually adopted, and the main process includes the following steps: after the outer pipe jacking is jacked into place, a C20 plain concrete cushion is poured, the inner sleeve is jacked in, the concrete conveying pipe is arranged, and finally the C20 fine stone concrete is poured to complete the concrete filling of the cavity between the outer pipe jacking and the inner sleeve. However, in the prior art, the steel pipe concrete conveying pipe is usually directly inserted into the cavity without being fixed, which leads to non-standard construction process and uneven concrete pouring, thereby affecting the construction quality.

[0003] In the current construction practice, the way of fixing the conveying pipe is relatively primitive, mainly relying on wooden wedges, binding or other temporary fixing measures. These traditional methods have many problems, such as unstable fixing, easy movement or tilting of the conveying pipe during construction, leading to uneven concrete pouring and even affecting the overall stability of the pipe jacking. In addition, during the pouring process, the impact of the vibrating or flowing concrete may cause the position of the conveying pipe to deviate due to insufficient pipe support, thereby affecting the concrete filling quality and even causing local cavities or pipe blockage.

[0004] In addition, the installation and removal of the existing fixing method are relatively complex, which not only increases the construction cost but also may affect the construction efficiency. In some special environments (such as soft soil foundation and areas with abundant underground water), unstable fixing of the conveying pipe may also cause more serious construction safety problems. Therefore, it is an urgent problem in the field to develop a concrete conveying pipe fixing method that is stable and reliable, easy to install and remove, and can improve the construction efficiency. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide a concrete conveying system for a pipe jacking sleeve to solve the problems of unstable pipe fixing and uneven pouring in the prior art, which can effectively improve the stability of concrete conveying and the construction quality during the pipe jacking construction process, and has a wide application prospect.

[0006] The purpose of the application is achieved by the following technical solutions:

[0007] A concrete conveying system for a pipe jacking sleeve, comprising an outer pipe jacking and an inner sleeve, wherein the outer pipe jacking is provided with a pipe jacking connecting plate located above the inner sleeve, the pipe jacking connecting plate is arranged in a plurality of rows along the longitudinal direction, the pipe jacking connecting plate is connected with a support frame, the support frame is provided with a plurality of rows of pipe supports, and the pipe supports are provided with concrete conveying pipes.

[0008] Further, the outer top pipe is a JCCP pipe, and the inner sleeve pipe is a steel pipe.

[0009] Further, the outer top pipe is provided with a concrete cushion layer, and the inner sleeve pipe is arranged on the concrete cushion layer.

[0010] Further, the top pipe connecting plate is in an arched structure, and is attached to and fixed on the inner wall of the outer top pipe.

[0011] Further, the two sides of the top pipe connecting plate are fixed on the outer top pipe through screws.

[0012] Further, the support frame is in a U-shaped structure.

[0013] Further, the two ends of the support frame are fixed on the top pipe connecting plate through screws.

[0014] Further, the support frame is arranged in at least two layers in the vertical direction, and the lower layer of the support frame is fixed on the upper layer of the support frame through screws.

[0015] Further, the pipe support is in a hoop structure, the lower hoop ring is fixed on the support frame, and the upper hoop ring is connected with the lower hoop ring through screws.

[0016] Further, the application further comprises a starting well and a receiving well, the ground surface of the wellhead of the starting well is provided with a ground pump, the ground pump is in communication with a ground pump delivery pipe extending into the starting well, and the ground pump delivery pipe is in communication with the concrete delivery pipe.

[0017] The application has the following beneficial effects:

[0018] (1) The construction quality is improved: the concrete delivery pipe is fixed through the arched connecting plate, the support frame and the support, the stability of the delivery pipe is ensured, the construction standardization is improved, the pipe displacement is avoided, and the concrete pouring is ensured to be uniform and full.

[0019] (2) The construction efficiency is improved: the structure is simple, the installation is convenient, and the construction demand can be flexibly adjusted.

[0020] (3) The flexibility is strong: the support frame can be expanded, the top pipe construction demand of different scales can be met, and the construction applicability is improved.

[0021] The foregoing main scheme of the application and each further selected scheme thereof can be freely combined to form multiple schemes, all of which are the schemes that can be adopted and claimed by the application; and the application can also be freely combined between (each non-conflict selection) and other selections. Those skilled in the art can understand that there are multiple combinations according to the prior art and common knowledge after understanding the scheme, and all of them are the technical schemes to be protected by the application, which will not be listed exhaustively. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1is a schematic diagram of a cross section of the structure of the present application.

[0023] Figure 2 is a schematic diagram of a longitudinal section of the structure of the present application.

[0024] In the figure: 1 - outer top pipe, 2 - inner sleeve pipe, 3 - concrete cushion, 4 - concrete delivery pipe, 5 - top pipe connecting plate, 6 - support frame, 7 - pipe support, 8 - screw, 9 - starting shaft, 10 - receiving shaft, 11 - ground pump, 12 - ground pump delivery pipe. DETAILED DESCRIPTION

[0025] The present application will be further described below in conjunction with specific embodiments and the accompanying drawings.

[0026] EMBODIMENT

[0027] REFERENCE Figure 1 and Figure 2 As shown in the figure, a concrete delivery system of a top pipe sleeve pipe comprises an outer top pipe 1, an inner sleeve pipe 2, a concrete cushion 3, a concrete delivery pipe 4, a top pipe connecting plate 5, a support frame 6, a pipe support 7, a screw 8, a starting shaft 9, a receiving shaft 10, a ground pump 11 and a ground pump delivery pipe 12.

[0028] The inner sleeve pipe 2 is arranged inside the outer top pipe 1, and a cavity is formed between the two. The outer top pipe 1 is provided with the top pipe connecting plate 5 above the inner sleeve pipe 2. The top pipe connecting plate 5 is arranged in a longitudinal direction and has a plurality of connecting points above the inner sleeve pipe 2, which are used to connect the support frame 6 by taking the inner wall of the outer top pipe 1 as a fixed base.

[0029] The top pipe connecting plate 5 is connected with the support frame 6. The support frame 6 is arranged in a transverse direction and a longitudinal direction above the inner sleeve pipe 2 to form a load-bearing support structure, which is used to continuously support the concrete delivery pipe 4. The support frame 6 is provided with a plurality of rows of pipe supports 7, and the concrete delivery pipe 4 is arranged on the pipe support 7 to be fixed on the support frame 6 by the pipe support 7, so as to avoid the deviation of the pipe position.

[0030] The outer top pipe 1 is a JCCP pipe, the inner sleeve pipe 2 is a steel pipe, and the outer top pipe 1 and the inner sleeve pipe 2 are arranged concentrically. The concrete cushion 3 is made of C20 plain concrete.

[0031] The inner sleeve pipe 2 is arranged on the concrete cushion 3 in the outer top pipe 1. During construction, the concrete cushion 3 is first poured and then the inner sleeve pipe 2 is arranged, so that the inner sleeve pipe 2 is supported by the cushion.

[0032] The top pipe connecting plate 5 is an arched high-strength steel plate which matches the inner wall arc of the outer top pipe 1, is attached to and fixed on the inner wall of the outer top pipe 1, ensures stable connection and does not occupy too much space. The two sides of the top pipe connecting plate 5 are fixed on the outer top pipe 1 through screws 8, preferably, the four corners of the top pipe connecting plate 5 are provided with holes, screw mounting holes are drilled in the outer top pipe 1 in advance, and then the screws 8 are connected.

[0033] The support frame 6 is a U-shaped structure which is convenient to form a supporting structure with both ends connected and the middle supported. The support frame 6 is provided with holes to realize self-fixing or fixing with the lower support frame 6. The two ends of the support frame 6 are fixed on the top pipe connecting plate 5 through the screws 8 to ensure the fixation of the support frame 6. The middle part of the support frame 6 supports the concrete conveying pipe 4.

[0034] The support frame 6 is arranged in at least two layers in the vertical direction. The lower support frame 6 is fixed on the upper support frame 6 through the screws 8. The capacity of the concrete conveying pipe 4 can be expanded through the multiple layers of support frames 6. The number of layers of the support frame 6 can be flexibly adjusted according to the number of support concrete conveying pipes 4 required at the place.

[0035] The support frame 6 can be spliced according to the actual construction needs to realize the fixation of single-row or multi-row conveying pipes and increase the flexibility of the device. Meanwhile, the support frame 6 is made of corrosion-resistant materials to adapt to the underground construction environment and prolong the service life.

[0036] The pipe support 7 is a clamp structure. The lower clamp ring is welded or screwed to the support frame 6. The upper clamp ring is connected to the lower clamp ring through screws. The concrete conveying pipe 4 is fixed on the lower clamp ring through the upper clamp ring to realize the stable placement of the pipe. The pipe will not deviate or jump and can maintain a stable concrete conveying process.

[0037] The support frame 6 contains three to five pipe clamps. The diameter of the pipe clamp is slightly larger than the diameter of the conveying pipe. The specific number can be flexibly set according to the length and diameter of the pipe. The pipe clamp is fixed to the connecting plate. The pipe clamps in the same row are arranged in parallel and symmetrically with the center of the pipe diameter to ensure the force balance of the support frame 6.

[0038] The starting well 9 is used for the starting jacking or pipe entering of the outer top pipe 1 and the inner sleeve pipe 2. The receiving well 10 is used for receiving the outer top pipe 1 and the inner sleeve pipe 2 to realize the receiving under the span. The ground surface of the wellhead of the starting well 9 is provided with a ground pump 11. The ground pump 11 communicates with a ground pump conveying pipe 12 which extends into the starting well 9. The ground pump conveying pipe 12 communicates with the concrete conveying pipe 4. The concrete on the ground is conveyed to the concrete conveying pipe 4. The concrete conveying pipe 4 is used for the pouring and filling of the concrete in the cavity. The concrete conveyed by the concrete conveying pipe 4 is C20 fine stone concrete.

[0039] The workflow of the present application is as follows:

[0040] 1. Drilling preparation: After the outer pipe is completed, before pouring the concrete cushion, manually enter the pipeline, use an electric hammer to drill holes at the design position of the casing, and the hole diameter matches the size of the bolt. Ensure that the drilling position is uniform and the hole diameter is accurately matched with the bolt to ensure the stability of the subsequent fixation.

[0041] 2. Fixing the connecting plate: Align the bolt holes of the arched connecting plate with the drilled holes and fix them with bolts to ensure that the connecting plate is firmly embedded in the outer pipe. When installing, use a torque wrench to tighten the bolts to avoid loosening.

[0042] 3. Installing the delivery pipe: Insert the concrete delivery pipe into the pipe clamp in sequence, adjust the pipe clamp position according to the construction requirements, and adjust it to the design position.

[0043] 4. Adjustment and reinforcement: Adjust the pipe clamp position according to the construction requirements to ensure that the concrete delivery pipe is stable and does not shake.

[0044] 5. Secondary fixation (if necessary): When multiple rows of delivery pipes are needed, the second row of support frames can be connected through the bolt holes on the support frames to increase the number of layers of support and placement.

[0045] The foregoing basic examples and their respective further selected examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed by the present application. In the present application, each selected example can be arbitrarily combined with any basic example and selected example.

[0046] The above is only a preferred embodiment of the present application and does not limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A concrete delivery system for a pipe jacking casing, comprising an outer jacking pipe (1) and an inner casing (2), characterized in that: The outer top pipe (1) is provided with top pipe connecting plates (5) above the inner sleeve pipe (2), the top pipe connecting plates (5) are arranged in the longitudinal direction, the top pipe connecting plates (5) are connected with support frames (6), the support frames (6) are provided with pipeline supports (7), and the pipeline supports (7) are provided with concrete conveying pipes (4).

2. A concrete delivery system for pipe jacking in accordance with claim 1, characterised in that: The outer top pipe (1) is a JCCP pipe, and the inner sleeve pipe (2) is a steel pipe.

3. Concrete delivery system for pipe jacking canals according to claim 1 or 2, characterized in that: The outer top pipe (1) is provided with a concrete cushion layer (3), and the inner sleeve pipe (2) is arranged on the concrete cushion layer (3).

4. A concrete delivery system for pipe jacking in accordance with claim 1, wherein: The top pipe connecting plate (5) is an arch-shaped structure, and the top pipe connecting plate (5) is attached to and fixed on the inner wall of the outer top pipe (1).

5. A concrete delivery system for pipe jacking in accordance with claim 1 or 4 wherein: The two sides of the top pipe connecting plate (5) are fixed on the outer top pipe (1) through screws (8).

6. A concrete delivery system for pipe jacking as claimed in claim 1, wherein: The support frame (6) is a U-shaped structure.

7. A concrete delivery system for pipe jacking in accordance with claim 1 or 6 wherein: The two ends of the support frame (6) are fixed on the top pipe connecting plate (5) through screws (8).

8. A concrete delivery system for pipe jacking in accordance with claim 1 or 6, characterised in that: The support frame (6) is arranged in at least two layers in the vertical direction, and the lower layer of the support frame (6) is fixed on the upper layer of the support frame (6) through screws (8).

9. A concrete delivery system for pipe jacking as claimed in claim 1, wherein: The pipeline support (7) is a hoop structure, the lower hoop ring is fixed on the support frame (6), and the upper hoop ring is connected with the lower hoop ring through screws.

10. A concrete delivery system for pipe jacking in accordance with claim 1, wherein: Further comprising a starting well (9) and a receiving well (10), the ground surface of the wellhead of the starting well (9) is provided with a ground pump (11), the ground pump (11) is communicated with a ground pump conveying pipe (12) extending into the starting well (9), and the ground pump conveying pipe (12) is communicated with the concrete conveying pipe (4).

Images