New pipeline construction device and method using waste pipelines

Abstract

The invention provides a new pipeline construction device and method utilizing a waste pipeline, and the construction device comprises a plurality of pushing parts, a plurality of pipe joints forming the new pipeline, a working well excavated at the inlet end of the waste pipeline, a receiving well excavated at the outlet end of the waste pipeline, and at least one complete hole of a concrete frame beam in the middle of the working well. A sliding supporting mechanism and a pushing mechanism are arranged in the working well, and a supporting mechanism is arranged at the front end of the first pipe joint. According to the method, assembly and pipe penetrating of the new pipeline can be achieved without large-area excavation, the new pipeline replaces a waste pipeline, damage to an original road surface or an original building is reduced, meanwhile, when the working well is excavated, the original concrete frame beam above the waste pipeline is reserved and is not damaged, the original concrete frame beam is used as a support, and the construction efficiency is improved. The construction cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of pipeline construction, and in particular relates to a new pipeline construction device and method using waste pipelines. Background Art

[0002] In municipal construction, some underground pipelines age after prolonged use and need to be replaced with new ones. Pipe jacking is a relatively mature technology widely used in underground pipeline repair. However, to facilitate pipeline construction, the working well is excavated as large as possible, and the original concrete frame beams above the obsolete pipelines are removed, increasing construction costs.

[0003] Therefore, how to construct new pipelines in a trenchless environment while retaining the original concrete frame beams is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention aims to propose a new pipeline construction device and method using waste pipelines, so as to realize the insertion of new pipelines into waste pipelines to replace waste pipelines in a trenchless state.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] First, the invention of the new pipeline construction device using waste pipelines is described as follows:

[0007] A new pipeline construction device utilizing waste pipelines comprises several jacking members, several pipe sections constituting the new pipeline, a working well excavated at the inlet end of the waste pipeline, and a receiving well excavated at the outlet end. The working well retains the original concrete frame beam on the ground, and at least one complete concrete frame beam hole is located in the middle of the working well. The length of the pipe section is less than the length of the concrete frame beam hole.

[0008] A sliding support mechanism is provided in the working pit to support the pipe segment. At the same time, a pushing mechanism is provided in the working pit to push the pipe segment on the sliding support mechanism toward the waste pipe to perform the pipe threading operation.

[0009] A supporting mechanism is provided at the front end of the first pipe segment. After the first pipe segment enters the waste pipe, the front end of the first pipe segment is supported on the inner wall of the waste pipe through the supporting mechanism.

[0010] Furthermore, the pushing mechanism includes a wall, two jacks, a pushing frame and several pushing parts, wherein the wall is arranged facing the inlet of the waste pipe, and the two jacks are symmetrically arranged on the wall of the wall facing the inlet of the waste pipe 1, and the push rods of the two jacks are facing the side wall of the pipe segment;

[0011] The pushing frame and the pushing piece are both placed on the sliding support mechanism, and the pushing frame faces the jack, and the pushing piece faces the pipe section on the sliding support mechanism. The jack pushes the pushing frame, the pushing piece, and then the pipe section to thread the pipe.

[0012] Furthermore, the push frame is a U-shaped frame structure with an opening facing upward, including two U-shaped plates arranged front and back, and a plurality of ribs connecting the two U-shaped plates;

[0013] The pushing member is a pipe structure, and its pipe diameter is the same as that of the pipe section.

[0014] Furthermore, socket structures are respectively provided between two adjacent pipe sections, between the pushing piece and the pipe section, and between two adjacent pushing pieces.

[0015] Furthermore, the sliding support mechanism includes a slide, two of which are arranged side by side, and a distance is left between the two slides and the inlet of the waste pipe. A V-shaped roller is arranged between the slide and the inlet of the waste pipe, and the pipe section moves sequentially from the slide and the V-shaped roller into the waste pipe.

[0016] Furthermore, the support mechanism includes two support rollers, which are fixed to the inner wall of the first pipe section through a mounting frame. The two support rollers symmetrically abut against the inner wall of the waste pipe and support the front end of the first pipe section.

[0017] The above is an explanation of the new pipeline construction device plan using waste pipelines. The following is an explanation of its construction method:

[0018] A construction method for a new pipeline construction device using waste pipelines comprises the following steps:

[0019] S10. Determine the length of the pipe segment based on the length of the hole in the concrete frame beam at the waste pipe location. The pipe segment length is smaller than the length of the hole in the concrete frame beam. Determine the number of pipe segments based on the length of the waste pipe. Determine the length and number of jacking members based on the length of the pipe segment and the designed stroke of the jack. Determine the U-shaped jacking frame based on the size of the pipe segment.

[0020] S20. Excavation of working well and receiving well:

[0021] Excavate a working pit at the inlet of the waste pipeline. When excavating, the original concrete frame beam on the ground should be retained. The excavation length of the working pit should ensure that there is at least one complete hole in the middle of the working pit.

[0022] Dig a receiving well at the outlet of the waste pipeline;

[0023] S30, cleaning the inside of the waste pipe:

[0024] S40. Construction of the jacking mechanism and sliding support mechanism in the working pit:

[0025] Construction of the pushing mechanism: set up a wall, and install a jack on the wall towards the waste pipe, leaving a distance between the jack's pushing end and the complete hole in the horizontal direction;

[0026] Construction of the sliding support mechanism to support the pipe segment, the pushing member, and the pushing frame and enable the pipe segment to be smoothly moved from the sliding support mechanism to the waste pipe;

[0027] S50: hoist the first pipe section through the complete hole into the working pit and support it with the sliding support mechanism. Hoist the first jacking member and jacking frame onto the sliding support mechanism in sequence through the holes corresponding to the jacks, with the jacking frame facing the jacks and the first jacking member facing the first pipe section.

[0028] S60, the jack pushes the pushing frame, driving the first pushing member to push the first pipe section toward the waste pipeline for a stroke distance;

[0029] S70, the jack push rod retracts, and a push piece is added between the push frame and the push piece. The jack pushes again, causing the first pipe section to move forward another stroke distance.

[0030] Repeat this step until there is space in the working well for installing the second pipe segment;

[0031] S80, lifting the pushing frame and the pushing member away from the sliding support mechanism, repeating steps S50, S60, and S70 to hoist in the second pipe segment, the pushing frame, and the pushing member, welding the next pipe segment to the first pipe segment, and using a jack to push the second pipe segment until space for the third pipe segment is left in the working well;

[0032] Repeat this step, hoist several pipe sections into the working well and assemble them into a new pipeline, and use the jack to push until the front end of the first pipe section (8) extends into the receiving well, completing the pipe threading operation of the new pipeline and replacing the old pipeline with the new pipeline.

[0033] Furthermore, two jacks are symmetrically arranged on the left and right, and the jack push rods are facing the pipe wall of the pipe segment.

[0034] Furthermore, in step S50, two support rollers are symmetrically arranged at the front end of the first pipe segment, and the central angle of the two support rollers corresponding to the center of the pipe segment is 90° to 120°. After the first pipe segment enters the waste pipe, the two support rollers abut the inner wall of the waste pipe and support the first pipe segment.

[0035] Furthermore, the length of the pipe section corresponds to the length of the hole in the concrete frame beam; the jack stroke distance is its maximum telescopic length, and the length of the push piece is the same as the jack stroke.

[0036] Compared with the prior art, the new pipeline construction device and method using waste pipelines described in the present invention have the following advantages:

[0037] (1) In the present invention, the assembly and threading of new pipelines can be achieved without the need for large-scale excavation, so that the new pipelines replace the old pipelines, reducing the damage to the original road surface or the original building. At the same time, when the working well is excavated, the original concrete frame beams above the old pipelines are retained without being damaged, and the original concrete frame beams are used as support to reduce construction costs.

[0038] (2) In the present invention, the jacking frame adopts a U-shaped frame structure, and the jacking member adopts a pipe structure, each of which reduces weight and improves construction convenience.

[0039] (3) In the present invention, two jacks are used to push the new pipeline, and the pushing points act on the wall of the new pipeline, thereby improving the stability of the new pipeline pushing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0041] Figure 1 This is a schematic diagram of a new pipeline construction device using waste pipelines according to an embodiment of the present invention;

[0042] Figure 2 This is a front view of the support mechanism in an embodiment of the present invention;

[0043] Figure 3 A top view of the support mechanism in an embodiment of the present invention;

[0044] Figure 4 Schematic diagram of a supporting roller supporting a pipe segment in a waste pipe according to an embodiment of the present invention;

[0045] Figure 5 A perspective view of a push frame in an embodiment of the present invention;

[0046] Figure 6 This is a front cross-sectional view of a push member in an embodiment of the present invention;

[0047] Figure 7 This is a diagram showing the position of the jack push piece in an embodiment of the present invention;

[0048] Description of reference numerals:

[0049] 1-waste pipe; 2-wall; 4-jack; 5-working pit; 6-thrust frame; 61-U-shaped plate; 62-connecting plate; 63-rib plate; 64-positioning sleeve; 641-insertion port; 7-thrust piece; 71-external cone structure; 72-tapered socket structure; 8-pipe section; 9-slide; 10-bracket; 11-support mechanism; 111-arc plate; 112-support roller; 113-roller frame; 12-V-type roller; 13-concrete frame beam; 131-hole;. DETAILED DESCRIPTION

[0050] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0051] First, an embodiment of a new pipeline construction device utilizing waste pipelines is described as follows:

[0052] like Figure 1 As shown, a new pipeline construction device using waste pipelines includes several jacking members 7, jacking frames 6 and several pipe sections 8 constituting the new pipeline. The pipe section 8 is a steel pipe structure. A working well 5 is excavated at the inlet end of the waste pipeline 1, and a receiving well (not shown in the figure) is excavated at the outlet end. The working well 5 is used to arrange a jacking mechanism and a sliding support mechanism for supporting the pipe sections, jacking frames 6 and jacking members 7. The welding of the pipe sections is completed in the working well 5 to form a new pipeline. The jacking mechanism pushes the new pipeline into the waste pipeline 1, and the first pipe section of the new pipeline extends to the receiving well at the outlet of the waste pipeline. The receiving well is also the working well for the jacking construction of the next section of the new pipeline. By the same token, the working well at the inlet of the waste pipeline is also the receiving well for the jacking construction of the previous section of the new pipeline. In this embodiment, Figure 1 In the working well 5 at the inlet of the waste pipeline 1, the new pipeline is assembled, pushed, and threaded into the waste pipeline 1. In the receiving well at the outlet of the waste pipeline 1, the first pipe section of the new pipeline is assembled with the next section of the new pipeline. This section of the new pipeline is then connected to the previous section of the new pipeline in this working well 5. Each new section of the pipeline is assembled in this manner, forming a new pipeline that replaces the entire waste pipeline. During excavation, the working well 5 retains the existing concrete frame beam 13 on the ground. The three holes 131 of the concrete frame beam 13 are fully exposed through the working well 5, preserving the concrete frame beam 13. After construction, the concrete frame beam 13 can still be used for support strength, improving the stability and strength of the pipeline construction.

[0053] The length of the pipe segment 8 is slightly smaller than the length of the hole 131 of the concrete frame beam 13. On the one hand, the pipe segment 8 can be hoisted into the working pit through the hole, and on the other hand, the number of pipe segment hoisting times is minimized, thereby increasing the construction speed.

[0054] A sliding support mechanism is provided in the working well 5 for supporting the pipe segment 8. At the same time, a pushing mechanism is provided in the working well 5. The pushing mechanism pushes the pipe segment 8 on the sliding support mechanism toward the waste pipeline 1 to perform the pipe threading operation. Every time the pipe segment 8 moves into the working well to free up a pipe segment installation space, the pushing mechanism retracts, and a new pipe segment is added to the sliding support mechanism. The new pipe segment is welded to the original pipe segment, and the pushing mechanism pushes again until the first pipe segment 8 passes through the waste pipeline 1 and enters the receiving well.

[0055] The sliding support mechanism includes two slideways 9 arranged at a position of the working well 5 away from the inlet of the waste pipe 1, and V-shaped rollers 12 arranged between the two slideways 9 and the inlet of the waste pipe 1. The centerline position of the pipe section remains unchanged when it moves in the waste pipe 1 due to the slideways 9, V-shaped rollers 12.

[0056] Since the sliding support mechanism is arranged outside the waste pipe, in order to improve the smooth movement of the pipe after entering the waste pipe and prevent the new pipe from sagging downward due to gravity, a support mechanism 11 is set at the front end of the first pipe segment 8. After the first pipe segment 8 enters the waste pipe 1, the front end of the first pipe segment 8 is supported on the inner wall of the waste pipe 1 by the support mechanism 11.

[0057] Supporting structures such as Figure 2 、 Figure 3 As shown, it includes two support rollers 112, which are fixed to the inner wall of the first pipe segment 8 through a mounting frame. The mounting frame is preferably a curved plate 111 corresponding to the inner wall of the pipe segment. The two support rollers 112 are each fixed to the inner surface of the curved plate 111 through a roller frame 113. During assembly, the curved plate 111 can be fixed to the inner wall of the pipe segment 8 by spot welding, as shown in FIG. Figure 4 As shown, at this time, the center line of the support roller 112 is perpendicular to the radius of the pipe segment 8 in space. The two support rollers 112 are located in front of the first pipe segment 8 and symmetrically abut the inner wall of the waste pipe 1. As a preference, the central angle of the two support rollers 112 corresponding to the center of the pipe segment 8 is 90° to 120°. The two support rollers support the first pipe segment 8, that is, support the new pipe, to ensure the stability of the new pipe during threading.

[0058] The pushing mechanism includes a wall 2, two jacks 4, a pushing frame 6 and several pushing parts 7, wherein the wall 2 is arranged opposite to the inlet of the waste pipe 1, and the back of the wall 2 is close to the wall of the working well 5 facing the inlet of the waste pipe. The two jacks 4 are symmetrically arranged on the left and right sides in front of the wall 2, that is, on the wall facing the inlet of the waste pipe 1, and the push rods of the two jacks 4 are facing the side wall of the pipe segment 8 to ensure that the jacks 4 can stably push the pipe segment 8 through the pushing frame 6 and the pushing parts 7.

[0059] like Figure 5As shown, the pushing frame 6 is a U-shaped frame structure with an upward opening. The width of the pushing frame 6 is greater than the outer diameter of the pushing member 7, and the width of the U-shaped opening is less than the inner diameter of the pushing member 7. This ensures that the pushing frame 6 can abut the left and right ends of the end surface of the pushing member 7 to ensure that the pushing operation can be carried out. Specifically, the pushing frame 6 includes two U-shaped plates 61 arranged in front and back and facing each other, and a connecting plate 62 connecting the two U-shaped plates 61. The connecting plate 62 is located on the inner side of the edge of the U-shaped plate 61. The two U-shaped plates 61 are connected by a plurality of ribs 63 at the outer side of the connecting plate 62. This structure improves the strength of the pushing frame 6 and reduces its weight, making it easier to hoist and move the pushing frame 6 and facilitate the pushing operation of the jack 4.

[0060] Two positioning sleeves 64 are symmetrically arranged on the side of the push frame 6 facing the jack 4. The insertion opening 641 of the positioning sleeve 64 is a tapered socket to facilitate the insertion of the jack's push rod. When pushing, the jack 4 push rod extends into the positioning sleeve 64 and abuts the push frame 6. At this time, the position of the positioning sleeve 64 corresponds to the side wall of the pipe segment. Figure 6 As shown, the positioning sleeve 64 defines the relative position between the push frame 6 and the two jacks 4, and further defines the position of the push frame 6 relative to the push member 7, so that the push frame 6 is stabilized on the two slideways 9. It includes two U-shaped plates 61 arranged in front and back, and a plurality of ribs 63 connecting the two U-shaped plates 61.

[0061] In order to facilitate alignment welding, a tapered socket structure is provided between the pipe segments 8, that is, the opening at one end of the pipe segment 8 is a tapered socket, and the outer circumference of the other end is provided with a corresponding socket cone. When the pipe segment is hoisted in, the socket cone and the tapered socket are placed on the sliding support mechanism with the socket cone facing backward. The push piece 7 is a pipe structure, such as Figure 7 As shown, the pipe diameter is the same as that of the pipe segment 8. The outer circumferential surface at the front end of the push member 7 corresponds to the tapered socket of the pipe segment 8 and is provided with an outer conical surface structure 71. The inner circumferential surface at the rear end of the push member 7 corresponds to the outer conical surface structure 71 and is provided with a tapered socket structure 72. This structure forms a socket structure between the pipe segments, between the push member 7 and the pipe segment, and between the push members, thereby improving the stability of the push.

[0062] The following is an example of a new pipeline construction method.

[0063] A construction method for a new pipeline construction device using waste pipelines comprises the following steps:

[0064] S10. Determine the length of the pipe segment 8 based on the length of the hole 131 in the concrete frame beam 13 at the waste pipeline. The length of the pipe segment 8 is slightly smaller than the length of the hole to facilitate the lifting of the pipe segment. Determine the number of pipe segments 8 based on the length of the waste pipeline to ensure that the new pipeline formed by welding the pipe segments can pass through the waste pipeline and extend into the receiving well. Determine the length of the jacking piece 7 based on the design stroke of the jack, and determine the number of jacking pieces 7 based on the length of the pipe segment 8. Preferably, the stroke distance of the jack 4 is its maximum stroke, and the length of the jacking piece 7 is the same as the stroke distance of the jack 4. Determine the U-shaped jacking frame 6 based on the size of the pipe segment 8;

[0065] S20. Excavation of working well and receiving well:

[0066] A working pit is excavated at the inlet end of the waste pipeline. The original concrete frame beam on the ground should be retained during excavation. The excavation length of the working pit should ensure that there is at least one complete hole 131 in the middle of the working pit to facilitate the lifting of the pipe segment.

[0067] Dig a receiving well at the outlet of the waste pipeline;

[0068] It is noted that the waste pipeline in the present invention refers to a section of the entire waste pipeline. Figure 1 The working well excavated at the inlet of the waste pipeline 1 is also used as a receiving well for repairing the previous section of the waste pipeline, and the receiving well described in the present invention is also used as a working well for repairing the next section of the waste pipeline. The excavation and function of the working well and the receiving well are commonly used technical means in trenchless pipeline repair construction and will not be described in detail here.

[0069] S30, cleaning the interior of the waste pipe 1:

[0070] Use a drill or other cleaning equipment such as a sweeper, blower or vacuum cleaner to clean the inside of the waste pipe to make it clean;

[0071] S40. Construction of the jacking mechanism and sliding support mechanism in the working pit:

[0072] Construction of the pushing mechanism: Set up a wall 2, with the back of the wall 2 close to the cavity wall of the working well facing the opening of the waste pipe 1. Set up two jacks 4 symmetrically in front of the wall 2 facing the waste pipe 1. Leave a distance between the pushing ends of the jacks 4 and the complete hole 131 in the horizontal direction to facilitate the lifting of the pushing member 7 and the pushing frame 6.

[0073] Construction of the sliding support mechanism: The sliding support mechanism is used to support the pipe section 8, the jacking member 7, and the jacking frame 6 and can move until the pipe section is smoothly moved by the sliding support mechanism into the waste pipe. Preferably, the sliding support mechanism includes two slideways 9 and V-shaped rollers 12. The two slideways 9 are arranged side by side and close to the wall 2. The two slideways 9 are supported by brackets 10 in the working well 5. The length of the slideways 9 must be able to ensure that the jacking frame and several jacking members 7 are placed in sequence. The V-shaped rollers 12 are arranged between the slideways 9 and the inlet of the waste pipe 1. The number of V-shaped rollers 12 depends on the specific construction situation. It must be able to ensure that the pipe section can be smoothly moved from the slideways to the V-shaped rollers 12, and then smoothly moved by the V-shaped rollers 12 into the waste pipe 1.

[0074] S50. Two supporting rollers 112 are symmetrically arranged at the front end of the first pipe segment 8. Then, the first pipe segment 8 is hoisted into the working well 1 through the intact hole 131 in the middle of the working well and supported by the two slideways 9. The first pushing member 7 and the pushing frame 6 are sequentially hoisted onto the sliding support mechanism through the holes 131 corresponding to the jacks 4, with the pushing frame 6 facing the jacks and the first pushing member 7 facing the first pipe segment 8.

[0075] S60, the jack 4 pushes the pushing frame 6, driving the first pushing member 7 to push the first pipe segment 8 toward the waste pipe by a travel distance, which is the telescopic length set by the jack. Preferably, the telescopic length is the maximum telescopic length of the jack.

[0076] S70, the push rod of the jack 4 retracts, and a push piece 7 is added between the push frame 6 and the push piece 7. The jack 4 pushes again, so that the first pipe section 8 moves forward again by a stroke distance;

[0077] Repeat this step until there is space in the working well for installing the second pipe segment;

[0078] S80, lift the pushing frame 6 and the pushing member 7 away from the sliding support mechanism, repeat steps S50, S60 and S70 to lift and push the second pipe segment 8, the pushing frame 6 and the pushing member 7, until space for the third pipe segment installation is left in the working well; it is explained that the second pipe segment 8 is welded to the first pipe segment 8 after being lifted in. If it is inconvenient to butt-weld the second pipe segment to the first pipe segment right after it is lifted in, a pushing operation can be performed first to make the second pipe segment 8 and the first pipe segment 8 socket-connected, and then welding can be performed.

[0079] Repeat this step to complete the hoisting, welding, and jacking of several pipe segments in the working well 5, that is, to complete the assembly of the new pipeline and the pipe threading construction in the waste pipeline. At this time, the front end of the first pipe segment 8 extends into the receiving well set at the outlet end of the waste pipeline to be connected to the new pipeline that replaces the next section of the waste pipeline.

[0080] When the new pipe enters the waste pipe 1 for pipe threading, since two support rollers 112 are set at the front end of the first pipe section 8, the first pipe section 8 is supported in the waste pipe, that is, the front end of the new pipe is supported, and the rear end of the new pipe is always supported by the V-shaped roller 12 to ensure the stability of the new pipe threading operation.

[0081] After the pipe threading of this section of waste pipe 1 is completed, the jack 4 and the wall 2 are removed, and then another pipe segment 8 and the connecting pipe segment are hoisted in sequence to the sliding support mechanism. The additionally hoisted pipe segment 8 and the connecting pipe segment are used to replace the previous section of waste pipe with a new pipe (the pipe threading has been completed) and connected to the inlet end of the new pipe of this section, and then the working well is landfilled. This operation is a routine operation and will not be described in detail.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new pipeline construction device using waste pipelines, characterized by: The invention comprises a plurality of pushing members (7), a plurality of pipe sections (8) constituting a new pipeline, a working well (5) excavated at the inlet end of the waste pipeline (1), and a receiving well excavated at the outlet end, wherein the working well (5) retains the original concrete frame beam (13) on the ground, and at least one complete hole (131) of the concrete frame beam (13) is provided in the middle of the working well (5), and the length of the pipe section (8) is less than the length of the hole (131) of the concrete frame beam (13); A sliding support mechanism is provided in the working well (5) for supporting the pipe section (8). At the same time, a pushing mechanism is provided in the working well (5) for pushing the pipe section (8) on the sliding support mechanism toward the waste pipe to perform a pipe threading operation. A support mechanism (11) is provided at the front end of the first pipe segment (8). After the first pipe segment (8) enters the waste pipe (1), the front end of the first pipe segment (8) is supported on the inner wall of the waste pipe (1) through the support mechanism (11).

2. The new pipeline construction device using waste pipelines according to claim 1 is characterized in that: The pushing mechanism comprises a wall (2), two jacks (4), a pushing frame (6) and a plurality of pushing members (7), wherein the wall (2) is arranged facing the inlet of the waste pipe (1), the two jacks (4) are symmetrically arranged on the wall surface of the wall (2) facing the inlet of the waste pipe (1), and the push rods of the two jacks (4) are facing the side wall of the pipe section (8); The pushing frame (6) and the pushing member (7) are both placed on the sliding support mechanism, and the jack (4) pushes the pushing frame (6), the pushing member (7) and then the pipe section (8) to penetrate the pipe.

3. The new pipeline construction device using waste pipelines according to claim 2 is characterized in that: The pushing frame (6) is a U-shaped frame structure with an opening facing upward, comprising two U-shaped plates (61) arranged front and back facing each other, and a plurality of rib plates (63) connected between the two U-shaped plates (61); The pushing member (7) is a pipe structure, and its pipe diameter is the same as that of the pipe section (8).

4. The new pipeline construction device using waste pipelines according to claim 3 is characterized in that: Socket structures are respectively provided between two adjacent pipe sections (8), between the pushing piece (7) and the pipe section (8), and between two adjacent pushing pieces (7).

5. The new pipeline construction device using waste pipelines according to claim 1 is characterized in that: The sliding support mechanism comprises a slideway (9), two slideways (9) are arranged side by side, and a distance is left between the two slideways (9) and the inlet of the waste pipe (1); a V-shaped roller (12) is arranged between the slideway (9) and the inlet of the waste pipe (1); and the pipe section moves sequentially from the slideway (9) and the V-shaped roller (12) into the waste pipe (1).

6. The new pipeline construction device using waste pipelines according to claim 1 is characterized in that: The support mechanism (11) comprises two support rollers (112), which are fixed to the inner wall of the first pipe section (8) via a mounting frame. The two support rollers (112) symmetrically abut against the inner wall of the waste pipe (1) and support the front end of the first pipe section (8).

7. A construction method for a new pipeline construction device using waste pipelines, characterized by: The following steps are involved: S10, determining the length of the pipe section (8) according to the length of the hole in the concrete frame beam at the waste pipe, wherein the length of the pipe section (8) is less than the length of the hole in the concrete frame beam, determining the number of pipe sections (8) according to the length of the waste pipe, determining the length and number of the jacking member (7) according to the length of the pipe section (8) and the design stroke of the jack, and determining the U-shaped jacking frame (6) according to the size of the pipe section (8); S20. Excavation of working well and receiving well: A working pit is excavated at the inlet end of the waste pipeline. The original concrete frame beam on the ground should be retained during excavation. The excavation length of the working pit should ensure that there is at least one complete hole in the middle of the working pit (131); Dig a receiving well at the outlet of the waste pipeline; S30, cleaning the interior of the waste pipe (1): S40. Construction of the jacking mechanism and sliding support mechanism in the working pit: Construction of the pushing mechanism: a wall (2) is set, and a jack (4) is set on the wall (2) in the direction of the waste pipe (1), and a distance is left between the pushing end of the jack (4) and the complete hole (131) in the horizontal direction; The construction of the sliding support mechanism supports the pipe section (8), the pushing member (7), and the pushing frame (6) and enables the pipe section to be smoothly moved from the sliding support mechanism to the waste pipe; S50, hoisting the first pipe section (8) from the complete hole (131) into the working well (1) and supported by the sliding support mechanism, hoisting the first push piece (7) and the push frame (6) onto the sliding support mechanism in sequence through the hole (131) corresponding to the jack (4), with the push frame (6) facing the jack and the first push piece (7) facing the first pipe section (8); S60, the jack (4) pushes the push frame (6), driving the first push member (7) to push the first pipe section (8) toward the waste pipe by a travel distance; S70, the push rod of the jack (4) retracts, and a push piece (7) is added between the push frame (6) and the push piece (7), and the jack (4) pushes again, so that the first pipe section (8) moves forward again by a stroke distance; Repeat this step until there is space in the working well for installing the second pipe segment; S80, lifting the pushing frame (6) and the pushing member (7) away from the sliding support mechanism, repeating steps S50, S60 and S70 to lift the second pipe segment (8), the pushing frame (6) and the pushing member (7), welding the next pipe segment (8) to the first pipe segment (8) after the next pipe segment (8) is lifted, and the second pipe segment (8) is pushed by a jack until space for the third pipe segment is left in the working well; Repeat this step, hoist several pipe sections into the working well and assemble them into a new pipeline, and use the jack to push until the front end of the first pipe section (8) extends into the receiving well, completing the pipe threading operation of the new pipeline and replacing the old pipeline with the new pipeline.

8. The construction method of a new pipeline construction device using waste pipelines according to claim 7, characterized in that: Two jacks (4) are symmetrically arranged on the left and right, and the push rods of the jacks (4) are directly facing the pipe wall of the pipe section (8).

9. The construction method of a new pipeline construction device using waste pipelines according to claim 7, characterized in that: In step S50, two supporting rollers (112) are symmetrically arranged at the front end of the first pipe segment (8), and the central angle of the two supporting rollers (112) relative to the center of the pipe segment (8) is 90° to 120°. After the first pipe segment (8) enters the waste pipe, the two supporting rollers (112) abut against the inner wall of the waste pipe (1) and support the first pipe segment (8).

10. The construction method of a new pipeline construction device using waste pipelines according to claim 7, characterized in that: The length of the pipe section (8) corresponds to the length of the hole in the concrete frame beam; the travel distance of the jack (4) is its maximum telescopic length, and the length of the push piece (7) is the same as the travel distance of the jack (4).

Images