A construction method for non-top excavation municipal pipeline

Abstract

The present invention discloses a construction method for a non-top excavation municipal pipeline, comprising the steps of installing the municipal pipeline on a pipeline transfer fixture, connecting support mechanisms at both ends of the municipal pipeline to the pipeline transfer fixture; hoisting the pipeline transfer fixture onto a transport device and transporting the fixture to a construction site, and hoisting the pipeline transfer fixture to a predetermined location; disassembling the support mechanism from the pipeline transfer fixture, connecting a lifting rod to the two support mechanisms, and hoisting the municipal pipeline onto a support seat; a power motor drives a guide screw to rotate, and the guide screw is transmission-connected to the support mechanism, allowing the municipal pipeline to enter a channel; when the municipal pipeline reaches a predetermined position, the support mechanism is removed; and the municipal pipelines are transported into the channel one by one until installation is completed. The present invention facilitates batch transport of municipal pipelines, ensures the safety of hoisting, accurately aligns the municipal pipeline with the channel, and ensures that the municipal pipeline is transported into the channel in a straight line; and the present invention is applicable to the technical field of municipal pipeline construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of municipal pipeline construction, and in particular relates to a construction method of a non-top excavation type municipal pipeline. Background Art

[0002] At present, in the process of municipal pipeline installation, whether it is the laying of water supply pipes or sewage pipes, the methods used are generally divided into two types. The first is to dig a trench on the ground, and then use a lifting tool to lift the municipal pipe to the trench and fix it in the trench, and finally bury the trench to complete the installation of the pipe; however, this method is not suitable for situations where there are buildings above the ground, and will cause damage to the buildings or existing road surfaces. Although it can be improved by filling and restoring, the strength of the buildings or road surfaces will be unexpectedly weakened. The second method is to use a non-excavation construction method to overcome the defects of the first method. Specifically, a shield machine is used to excavate a predetermined depth below the ground and form a channel, and then the municipal pipeline is transported into the channel.

[0003] However, securing municipal pipelines during transportation is extremely difficult. Due to their cylindrical structure, they are extremely unstable after being secured, making them difficult to transport in bulk. Furthermore, ensuring the secure binding of the pipelines during subsequent lifting operations is difficult, leading to frequent sideways slippage. Furthermore, it is difficult to align the municipal pipelines with the passageway, making it difficult to ensure a stable, straight delivery of the pipelines into the passageway. Summary of the Invention

[0004] The present invention provides a construction method for non-top excavation municipal pipelines, which is used to facilitate the batch transportation of municipal pipelines and ensure that the municipal pipelines have extremely high stability during the transportation process. At the same time, it is convenient for the lifting operation of the municipal pipelines and ensures the safety of the lifting. Moreover, during the installation process of the municipal pipelines, the municipal pipelines are accurately aligned with the channel and ensure that the municipal pipelines are stably and linearly transported into the channel.

[0005] To achieve the above object, the technical solutions adopted by the present invention are as follows:

[0006] A construction method for a non-top excavation municipal pipeline comprises the following steps:

[0007] S1. Install the municipal pipeline layer by layer on the pipeline transfer fixing frame, and provide support mechanisms on the inner walls of at least two ends of each municipal pipeline located on both sides of the pipeline transfer fixing frame, each support mechanism being detachably connected to the corresponding end of the pipeline transfer fixing frame;

[0008] S2. The pipeline transfer fixture is hoisted onto the transport equipment by a lifting device. The transport equipment transports the pipeline transfer fixture to the construction site, and the pipeline transfer fixture is hoisted to the predetermined location by the lifting device.

[0009] S3. Separate the support mechanisms at both ends of the municipal pipeline from the pipeline transfer fixtures, connect the lifting rods to the two support mechanisms, and connect the lifting rods to the hooks of the lifting equipment via wire ropes. Operate the lifting equipment to lift the municipal pipeline onto the support base, which is fixedly installed in the passage excavated by the shield machine.

[0010] S4. A guide screw is coaxially mounted on the output shaft of the power motor. The guide screw coincides with the axis of the municipal pipeline and is in transmission connection with the support mechanism. The power motor drives the guide screw to rotate, and the municipal pipeline gradually enters the channel.

[0011] S5. When the municipal pipeline reaches the predetermined position, the supporting mechanism releases the support for the municipal pipeline and removes it;

[0012] S6. Repeat steps S3-S5 to transport the municipal pipes into the channel one by one, and ensure that the ends of adjacent municipal pipes are spliced and fixed;

[0013] S7. Municipal pipeline installation is completed.

[0014] Furthermore, in step S4, the supporting mechanism is adjusted so that it is located between the grouting pipe and the municipal pipeline, and supports the grouting pipe and the municipal pipeline, and ensures that the axes of the two coincide. An external frame is installed on the supporting mechanism near one end of the power motor, and the external frame is connected to the guide screw for transmission. The power motor drives the grouting pipe and the municipal pipeline to extend into the channel synchronously.

[0015] Furthermore, multiple grouting pipes and municipal pipelines are gradually extended into the channel, and it is ensured that the adjacent grouting pipes are spliced and fixed at the end, and the adjacent municipal pipelines are spliced and fixed at the end, and sealing air bags are installed at both ends of the channel. Each of the sealing air bags is inflated and sealed between the grouting pipe and the municipal pipeline. A plurality of grouting holes and exhaust holes are respectively opened on the grouting pipe, and these grouting holes and exhaust holes are respectively connected to the outside world; the gap between the grouting pipe and the municipal pipeline is poured through the grouting holes until the concrete is filled.

[0016] Furthermore, the support mechanism includes a mounting ring, on which are mounted along its circumference a plurality of support members adjustable at angles along the center line of the mounting ring, each of the support members abutting against the inner wall or outer wall of the municipal pipeline.

[0017] Furthermore, the support member includes two telescopic members connected to the hoop at one end, and the two telescopic members are symmetrically arranged on both sides of the mounting ring. The hoop is installed and tightened on the mounting ring, and an abutment member is detachably connected to one end of each telescopic member away from the mounting ring.

[0018] Furthermore, the abutment member includes a wheel body connected via a wheel seat; the support seat has the same structure as the support mechanism, and the model of the mounting ring of the support seat is larger than the mounting ring of the support mechanism. During the installation of the support seat, the mounting rings of multiple support seats are coaxially arranged, and multiple fixing rods are used to connect these mounting rings together. A connecting rod is installed on the fixing rod, and the lower end of the connecting rod is fixed to the base. The support members on the support mechanism are removed and installed on the mounting ring of the support seat in turn, and it is ensured that the number of these support members located at the lower part of the mounting ring is greater than the number at the upper part.

[0019] Furthermore, each of the telescopic members and the hoop is pivotally connected to each other, and an elastic tensioning member or a pressing member for pressing against the wall of the municipal pipeline is detachably installed between the two telescopic members.

[0020] Furthermore, the abutment member includes a fixing belt installed between the two telescopic members, the middle part of the fixing belt is disconnected and connected via a spring net, and the surface of the fixing belt corresponding to the municipal pipeline is covered with anti-slip teeth.

[0021] Furthermore, the abutment member includes a rubber grinding ball installed at the end of the telescopic member, and a connecting ear with a strip-shaped channel is constructed on each telescopic member. The telescopic members located on the same side are connected via a connecting ring, and the connecting ring passes through the strip-shaped channels of the corresponding connecting ears. At least two adjustment cylinders are connected between the mounting ring and the connecting ring along the circumference of the two.

[0022] Furthermore, the abutment member includes an abutment airbag mounted outside the supporting mechanism, the abutment airbag having a hollow inflation cavity and connecting edges constructed on both sides thereof, and a connecting joint constructed on each connecting edge corresponding to the telescopic member, and each connecting joint is detachably connected to the end of the corresponding telescopic member; the opening angle of the two corresponding telescopic members is adjusted, and then the telescopic length of the telescopic member is controlled to change the shape of the abutment airbag, and then the inflation cavity is inflated to change the contact area between the abutment airbag and the pipe wall of the municipal pipeline.

[0023] Due to the adoption of the above structure, the present invention has the following technical advances compared with the prior art:

[0024] The two ends of the municipal pipeline of the present invention are fixed by connecting the supporting mechanism with the pipeline transfer fixing frame, so that the municipal pipeline can be stacked layer by layer in the pipeline transfer fixing frame and fixed, thus avoiding the situation that the municipal pipeline rolls on the transport vehicle during transportation. On the one hand, it avoids affecting its own structural strength during rolling or shaking, and on the other hand, it avoids safety accidents caused by rolling off the transport vehicle, and thirdly, it increases the number of municipal pipelines transported at one time. When lifting a single municipal pipeline at a construction site, the existing method is to use cable ties to tie the two ends of the municipal pipeline and then lift it by a crane. Since the firmness of the cable ties cannot be guaranteed, it often The municipal pipeline may fall off, but the present invention connects the supporting mechanism through a lifting rod, and realizes the lifting operation of the municipal pipeline by lifting the lifting rod. In this way, it is only necessary to design the lifting rod into a shape that is convenient for lifting. Since the supporting mechanism is fixed to the municipal pipeline, the municipal pipeline is avoided from falling off. Before the municipal pipeline is installed in the channel, the present invention lifts it to the support seat in advance, so that the municipal pipeline supported by the support seat and the channel are aligned with each other, and then the guide screw connected to the power motor is connected to the support mechanism. During the transmission process of the guide screw, the support mechanism and the support seat assist in cooperating with the rotation of the guide screw, thereby realizing the linear and deviation-free installation of the municipal pipeline in the channel.

[0025] In summary, the present invention facilitates the batch transportation of municipal pipelines, ensures that the municipal pipelines have extremely high stability during the transportation process, and at the same time facilitates the lifting operation of the municipal pipelines and ensures the safety of the lifting. Moreover, during the installation process of the municipal pipelines, the municipal pipelines are accurately aligned with the channel, and are guaranteed to be stably and linearly transported into the channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0027] In the attached figure:

[0028] Figure 1 This is a structural diagram of a municipal pipeline installed layer by layer on a pipeline transfer fixing frame according to an embodiment of the present invention;

[0029] Figure 2 This is a structural diagram of the connection between a municipal pipeline and a lifting rod according to an embodiment of the present invention;

[0030] Figure 3 This is a structural schematic diagram of a support base according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic structural diagram of another support base according to an embodiment of the present invention;

[0032] Figure 5 This is a layout diagram of a support member with a wheel body mounted on a support base according to an embodiment of the present invention;

[0033] Figure 6 This is a structural diagram of the support mechanism according to an embodiment of the present invention abutting against the outer wall of a municipal pipeline;

[0034] Figure 7 This is a schematic structural diagram of two telescopic members equipped with a pressing member according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic structural diagram of two telescopic members equipped with elastic tensioning members according to an embodiment of the present invention;

[0036] Figure 9 This is a structural diagram of a support mechanism according to an embodiment of the present invention;

[0037] Figure 10 for Figure 6 A schematic diagram of the structure of the middle telescopic member connected to the pressing member after being extended outward;

[0038] Figure 11 for Figure 10 A schematic diagram of the structure of the structure expanding on the municipal pipeline;

[0039] Figure 12 This is a schematic structural diagram of the connection between the support mechanism and the fixing belt according to an embodiment of the present invention;

[0040] Figure 13 This is a structural diagram of two telescopic members connected by a fixing belt according to an embodiment of the present invention;

[0041] Figure 14 This is a schematic structural diagram of the connection between the supporting mechanism and the grinding ball according to an embodiment of the present invention;

[0042] Figure 15 This is a schematic diagram of the structure of the telescopic member and the grinding ball after being separated according to an embodiment of the present invention;

[0043] Figure 16 This is a schematic structural diagram of the connection between the support mechanism and the abutting airbag according to an embodiment of the present invention;

[0044] Figure 17 This is an axial structural cross-sectional view of an abutting airbag according to an embodiment of the present invention;

[0045] Figure 18 This is a structural diagram of a supporting mechanism according to an embodiment of the present invention that simultaneously fixes and installs a grouting pipe and a municipal pipeline;

[0046] Figure 19 This is a structural diagram of the installation of a grouting pipe and a municipal pipeline according to an embodiment of the present invention.

[0047] Marked parts: 100-support mechanism, 101-mounting ring, 102-hoop, 103-telescopic part, 104-wheel body, 105-pressure part, 1051-pressure wheel, 1052-hinged rod, 1053-hoop, 106-elastic tensioning part, 1061-hard spring, 1062-connecting block, 1063-fixing hoop, 107-fixing belt, 1071-fixing belt body, 1072-anti-slip teeth, 1073-fixing sleeve, 1074-spring net, 108-connecting ring, 109-adjusting cylinder, 110-rubber bearing grinding ball, 111-connector seat, 112-connection Ear, 113-abutting airbag, 114-inflating chamber, 115-connecting edge, 116-connecting joint, 117-receiving rod, 118-transmission sleeve, 119-connecting hoop, 200-municipal pipeline, 300-grouting pipe, 400-sealing airbag, 500-pipeline transfer fixing frame, 501-joint sleeve, 502-base plate, 600-positioning rod, 601-adapter, 602-bent boom, 603-fixed lifting ring, 700-wire rope, 800-base, 801-connecting rod, 802-fixed rod, 803-connecting arm, 804-lifting cylinder, 900-external frame. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0049] The present invention discloses a construction method of a non-top excavation municipal pipeline, such as Figure 1-19 As shown, the following steps are included:

[0050] S1. Install the municipal pipelines 200 layer by layer on the pipeline transport fixing frame 500, and at least on both sides of the pipeline transport fixing frame 500, each municipal pipeline 200 is supported by a support mechanism 100 on its inner wall at both ends, and each support mechanism 100 is detachably connected to the corresponding end of the pipeline transport fixing frame 500;

[0051] S2. The pipeline transfer fixture 500 is hoisted onto the transport equipment by a lifting device. The transport equipment transports the pipeline transfer fixture 500 to the construction site, and the pipeline transfer fixture 500 is hoisted to the predetermined location by the lifting device.

[0052] S3. Separate the support mechanisms 100 and the pipe transfer fixtures 500 at both ends of the municipal pipe 200, connect the lifting rods to the two support mechanisms 100, and connect the lifting rods to the hooks of the lifting equipment via wire ropes 700. Operate the lifting equipment to lift the municipal pipe 200 onto the support base, which is fixedly installed in the tunnel excavated by the shield machine.

[0053] S4. A guide screw is coaxially mounted on the output shaft of the power motor. The guide screw coincides with the axis of the municipal pipe 200 and is in transmission connection with the support mechanism 100. The power motor drives the guide screw to rotate, and the municipal pipe 200 gradually enters the channel.

[0054] S5. When the municipal pipe 200 reaches the predetermined position, the support mechanism 100 releases the support for the municipal pipe 200 and the municipal pipe 200 is removed;

[0055] S6. Repeat steps S3-S5 to transport the municipal pipes 200 into the channel one by one, and ensure that the ends of adjacent municipal pipes 200 are spliced and fixed;

[0056] S7. The installation of the municipal pipeline 200 is completed.

[0057] A construction device for a non-top excavation municipal pipeline includes a municipal pipeline 200, which is stacked in a pipeline transfer fixing frame 500. The two ends of each stacked municipal pipeline 200 are supported by a support mechanism 100; the support mechanism 100 and the pipeline transfer fixing frame 500 are connected and fixed by a positioning rod 600; a steel wire rope 700 is provided on the top of the pipeline transfer fixing frame 500.

[0058] The support mechanism 100 includes a mounting ring 101, on which are mounted a plurality of support members spaced apart along the circumference of the mounting ring 101; each support member abuts against the inner or outer wall of the municipal pipe 200. Each support member includes two telescopic members 103, each of which is a hydraulic cylinder. One end of each telescopic member 103 is connected to a ferrule 102, and the two telescopic members 103 are symmetrically arranged on either side of the mounting ring 101. The ferrule 102 is mounted on the mounting ring 101. A detachable abutment is attached to the end of each telescopic member 103 away from the mounting ring 101. The support mechanism 100 is secured to the municipal pipe 200 via the abutment. A transmission frame is mounted within the support mechanism 100. The transmission frame includes a transmission sleeve 118 positioned at the center of the mounting ring 101, with the centerlines of the two coinciding. Multiple connecting hoops 119 are installed circumferentially on the mounting ring 101. A receiving rod 117 is detachably connected between each connecting hoop 119 and the transmission sleeve 118, and a guide screw is in transmission connection with the transmission sleeve 118. Each telescopic member 103 is pivotally connected to the hoops 102. An elastic tensioning member 106 or a pressing member 105 is detachably mounted between two corresponding telescopic members 103. The pressing member 105 is used to press against the wall of the municipal pipeline 200.

[0059] The abutting member includes a wheel body 104 , and the wheel body 104 is fixedly connected to the telescopic member 103 via a wheel seat.

[0060] The abutment member includes a wheel body 104 and a fixing belt 107. The wheel body 104 is installed in the same manner as the telescopic member 103. The fixing belt 107 includes a fixing belt body 1071. Fixing sleeves 1073 are respectively constructed at both ends of the fixing belt body 1071. The fixing sleeves 1073 are sleeved on the wheel bodies 104 of the two corresponding telescopic members 103. The fixing belt 107 is disconnected in the middle, and the disconnected part is connected by a spring net 1074. The surface of the fixing belt 107 corresponding to the municipal pipe 200 is covered with anti-slip teeth 1072.

[0061] The abutment member includes a rubber grinding ball 110 , which is configured with a joint seat 111 . The rubber grinding ball 110 is mounted on the end of the telescopic member 103 via the joint seat 111 and is fixed to the wall of the municipal pipeline 200 via the rubber grinding ball 110 .

[0062] The abutment member includes an annular abutment airbag 113, which is set outside the support mechanism 100. The abutment airbag 113 has a hollow inflation cavity 114. Connecting edges 115 are respectively constructed on both sides of the abutment airbag 113. A connecting joint 116 is constructed on each connecting edge 115 and corresponding to the telescopic member 103; each connecting joint 116 is detachably connected to the end of the corresponding telescopic member 103.

[0063] Each telescopic member 103 is constructed with a connecting ear 112, and a strip channel is constructed on the connecting ear 112. The length direction of the strip channel is the same as the telescopic direction of the telescopic member 103. The telescopic rods located on both sides of the mounting ring 101 are connected via two connecting rings 108 respectively; the connecting ring 108 passes through the strip channel of each connecting ear 112 on the corresponding side, and at least two adjusting cylinders 109 are connected between the mounting ring 101 and the connecting ring 108 along the circumference of the two. The two ends of the adjusting cylinder 109 are hinged to the mounting ring 101 and the connecting ring 108.

[0064] In the structure of the pressure piece 105, a pressure wheel 1051 is provided between the two corresponding telescopic pieces 103. The pressure wheel 1051 is hinged to one end of two independent hinged rods 1052. The other end of the hinged rod 1052 is hinged to a clamp 1053. Each clamp 1053 is connected to the corresponding telescopic piece 103. When the abutment piece abuts against the pipe wall of the municipal pipeline 200, the pressure wheel 1051 also abuts against the pipe wall, and the two corresponding telescopic pieces 103 can be opened and closed to achieve the abutment of the pressure wheel 1051 against the pipe wall. After that, the telescopic piece 103 is controlled to extend so that the abutment piece abuts against the pipe wall, thereby achieving sufficient and stable contact between the entire support piece and the pipe wall.

[0065] In the elastic tensioning member 106 structure, a hard spring 1061 is arranged between the two corresponding telescopic members 103, and connecting blocks 1062 are respectively constructed at the axial ends of the hard spring 1061. Fixed hoops 1063 are respectively installed on the two telescopic members 103, and the fixed hoops 1063 are connected to the corresponding connecting blocks 1062. The two telescopic members 103 stretch and drive the abutment members to abut against the pipe wall of the municipal pipeline 200.

[0066] The working principle and advantages of the present invention are as follows: the two ends of the municipal pipeline 200 of the present invention are fixed by connecting the support mechanism 100 with the pipeline transfer fixing frame 500, so that the municipal pipeline 200 can be stacked layer by layer in the pipeline transfer fixing frame 500 and fixed, thereby avoiding the municipal pipeline 200 from rolling on the transport vehicle during transportation. On the one hand, it avoids affecting its own structural strength during rolling or shaking, and on the other hand, it avoids rolling off the transport vehicle and causing safety accidents. Thirdly, it increases the number of municipal pipelines transported at one time, and in order to limit the use of the support mechanism 100 The present invention can install the supporting mechanism 100 in the municipal pipeline 200 located on both sides of the pipeline transfer fixing frame 500, and the other municipal pipelines 200 are in a state of being restricted by the municipal pipelines 200 on both sides, and the lower ends of the other municipal pipelines 200 are supported by the pipeline transfer fixing frame 500 or the municipal pipeline 200. After the fixation is completed, the upper end of the pipeline transfer fixing frame 500 can be fixed and tied by a fixing net; when a single municipal pipeline 200 is lifted at a construction site, the existing method is to use a cable tie to tie the two ends of the municipal pipeline 200, and then use a crane to lift it. During lifting, since the firmness of the cable tie cannot be ensured, the municipal pipe 200 often falls off. The present invention connects the supporting mechanism 100 through a lifting rod, and realizes the lifting operation of the municipal pipe 200 by lifting the lifting rod. In this way, it is only necessary to design the lifting rod into a shape that is convenient for lifting. Since the supporting mechanism 100 is fixed to the municipal pipe 200, the municipal pipe 200 is prevented from falling off. Before the municipal pipe 200 is installed in the channel, the present invention lifts it to the support seat in advance, so that the municipal pipe supported by the support seat and the channel are aligned with each other, and then the guide screw connected to the power motor is connected to the support seat. The mechanism 100 is connected for transmission. During the transmission process of the guide screw, the support mechanism 100 and the support seat assist in cooperating with the rotation of the guide screw, thereby realizing the linear and non-deviational installation of the municipal pipeline 200 in the channel. In summary, the present invention facilitates the batch transportation of the municipal pipeline 200, ensures that the municipal pipeline 200 has extremely high stability during the transportation process, and at the same time facilitates the lifting operation of the municipal pipeline 200 and ensures the safety of the lifting. Moreover, during the installation process of the municipal pipeline 200, the municipal pipeline 200 is accurately aligned with the channel, and ensures that the municipal pipeline 200 is stably and linearly transported into the channel.

[0067] As a preferred embodiment of the present invention, in most construction operations, it is necessary to install a grouting pipe 300 in the channel excavated by the shield machine. In this embodiment, the grouting pipe 300 and the municipal pipeline 200 are installed synchronously. This saves installation process steps and improves construction efficiency. On the other hand, the synchronous installation of the grouting pipe 300 and the municipal pipeline 200 ensures that there will be no problem of position deviation and misalignment after the two are installed. Specifically, Figure 18-19 As shown, in step S4, the support mechanism 100 is adjusted so that the support mechanism 100 is located between the grouting pipe 300 and the municipal pipeline 200, and the support mechanism 100 supports the grouting pipe 300 and the municipal pipeline 200 at the same time, thereby ensuring that the axes of the grouting pipe 300 and the municipal pipeline 200 coincide. In this embodiment, an external frame 900 is installed on the support mechanism 100 near one end of the power motor, and the external frame 900 is connected to the guide screw. The power motor drives the guide screw to rotate, and the guide screw drives the grouting pipe 300 and the municipal pipeline 200 to extend into the channel synchronously through the external frame 900.

[0068] As a preferred embodiment of the present invention, the present invention gradually extends multiple grouting pipes 300 and municipal pipelines 200 into the channel during continuous construction, and ensures that the end of adjacent grouting pipes 300 and the end of adjacent municipal pipelines 200 are spliced and fixed. Then, the concrete pouring construction operation is carried out. Specifically, Figure 19 As shown, blocking airbags 400 are installed at both ends of the channel. By inflating the blocking airbags 400, each blocking airbag 400 is expanded and sealed between the grouting pipe 300 and the municipal pipeline 200. The blocking airbags 400 support the grouting pipe 300 and the municipal pipeline 200 and also seal the pouring cavity. The present invention provides multiple grouting holes and exhaust holes on the grouting pipe 300, which are connected to the outside world. Construction workers pour concrete into the gap between the grouting pipe 300 and the municipal pipeline 200 through the grouting holes until the gap is filled with concrete. After the concrete solidifies, the blocking airbags 400 are deflated, and the supporting mechanism 100 and the blocking airbags 400 are finally removed.

[0069] As a preferred embodiment of the present invention, Figure 7-17As shown, the support mechanism 100 includes a mounting ring 101, on which are mounted a plurality of support members. These support members are spaced apart along the circumference of the mounting ring 101, and the angle of each support member is adjustable, specifically along the centerline of the mounting ring 101. Furthermore, each support member abuts against the inner or outer wall of the municipal pipe 200, depending on the situation, thereby enabling the support mechanism 100 to be internally supported within the municipal pipe 200 or externally clamped outside the municipal pipe 200. In this embodiment, each support member includes two telescopic members 103, preferably hydraulic cylinders, one end of each telescopic member 103 being connected to a ferrule 102, and the two telescopic members 103 are symmetrically arranged on either side of the mounting ring 101. The ferrule 102 is fastened to the mounting ring 101 by bolts, and each telescopic member 103 is detachably connected to an abutment member at one end away from the mounting ring 101. In this embodiment, the support mechanism 100 is secured to the municipal pipe 200 via abutments. When it is necessary to fix the municipal pipeline 200 with the pipeline transfer fixing frame 500 or to lift the municipal pipeline 200 or to install it into the channel, a transmission frame is installed in the support mechanism 100, wherein the specific structure of the transmission frame is as follows: Figure 16 As shown, the transmission frame includes a transmission sleeve 118 arranged at the center of the mounting ring 101 and the center lines of the two coincide with each other. A plurality of connecting hoops 119 are installed on the mounting ring 101 along its circumferential direction. A receiving rod 117 is detachably connected between each connecting hoop 119 and the transmission sleeve 118, and the guide wire rod is in transmission connection with the transmission sleeve 118. The present invention achieves the following by changing the angle of the telescopic members 103 on both sides of the mounting ring 101. Figure 6 、 Figure 11 and Figure 18 The fixed form shown, that is, the telescopic parts 103 all extend inward and abut against the outer wall of the corresponding municipal pipeline 200, or the telescopic parts 103 all extend outward and abut against the inner wall of the corresponding municipal pipeline 200, or the telescopic parts 103 extend inward on one side and outward on the other side, to achieve coaxial fixation of the two pipelines, thereby facilitating the transportation, installation and other operations of municipal pipelines 200 of different models.

[0070] As a preferred embodiment of the present invention, the abutment member includes multiple implementations. Among them, the first implementation is as follows: Figure 7-11 As shown, the abutment member includes a wheel body 104, and the wheel body 104 is fixedly connected to the telescopic member 103 through a wheel seat constructed thereon. Figure 12-13As shown, the abutment member includes a wheel body 104 and a fixing belt 107. The wheel body 104 is installed in the same manner as the telescopic member 103. The fixing belt 107 includes a fixing belt body 1071. A fixing sleeve 1073 is constructed at both ends of the fixing belt body 1071. The fixing sleeve 1073 is mounted on the wheel bodies 104 of the two corresponding telescopic members 103. The middle part of the fixing belt 107 of the present invention is disconnected, and the disconnected part is connected by a spring net 1074. The surface of the fixing belt 107 corresponding to the municipal pipe 200 is covered with anti-slip teeth 1071. 72; The telescopic member 103 stretches, and the fixing belt 107 is gradually stretched, thereby stretching the spring net 1074 and storing energy, until the anti-slip teeth 1072 (generally made of deformable materials such as hard rubber) of the fixing belt 107 abut against the pipe wall of the municipal pipe 200. At this time, the elastic tension of the spring net 1074 on the fixing belt body 1071 causes the anti-slip teeth 1072 to have a certain amount of deformation on the pipe wall. This deformation cooperates with the fixing belt body 1071 to tightly grasp the pipe wall, thereby fully avoiding the occurrence of the slipping problem. The third embodiment is as follows: Figure 14-15 As shown, the abutment member includes a rubber grinding ball 110, which is configured with a joint seat 111. The rubber grinding ball 110 is mounted on the end of the telescopic member 103 through the joint seat 111. In this embodiment, the rubber grinding ball 110 is used to achieve fixation with the pipe wall of the municipal pipe 200. The fourth embodiment is as follows: Figure 16-17 As shown, the abutment member includes an annular abutment airbag 113, which is set outside the support mechanism 100, and the abutment airbag 113 has a hollow inflation chamber 114. Connecting edges 115 are respectively constructed on both sides of the abutment airbag 113, and a connecting joint 116 is constructed on each connecting edge 115 and corresponding to the telescopic member 103, wherein each connecting joint 116 is detachably connected to the end of the corresponding telescopic member 103; in this embodiment, by adjusting the opening angle of the telescopic member 103 on both sides of the mounting ring 101, or adjusting the telescopic member 103 The telescopic length of the abutment airbag 113 is adjusted, or the opening angle and the telescopic length are adjusted at the same time, so that the shape of the abutment airbag 113 is changed, and then the inflation chamber 114 is inflated to change the contact area between the abutment airbag 113 and the pipe wall of the municipal pipe 200; specifically, according to different situations, the opening area of the abutment airbag 113 is changed by the telescopic member 103, and the abutment airbag 113 is inflated so that the cross-section of the abutment airbag 113 is axially flat, circular, or radially flat, thereby changing the contact area between the abutment airbag 113 and the pipe wall of the municipal pipe 200.

[0071] As a preferred embodiment of the present invention, the telescopic member 103 can be active or passive. The active one is generally the hydraulic cylinder mentioned above, and the passive one is generally the telescopic rod. In this embodiment, when the passive one is used, Figure 14-15As shown, a connecting ear 112 is constructed on each telescopic member 103, and a strip-shaped hole is constructed on the connecting ear 112. The length direction of the strip-shaped hole is the same as the telescopic direction of the telescopic member 103. The telescopic rods located on both sides of the mounting ring 101 are connected via two connecting rings 108, respectively. The connecting rings 108 pass through the strip-shaped hole of each connecting ear 112 on the corresponding side. At least two adjustment cylinders 109 are connected along the circumference of the mounting ring 101 and the connecting ring 108. The ends of the adjustment cylinders 109 can be hinged to the mounting ring 101 and the connecting ring 108. In this embodiment, the connecting ring 108 is pushed by the adjustment cylinder 109. The telescopic rods on each side are synchronously extended and retracted under the action of the connecting ring 108, and finally abut against the pipe wall of the municipal pipeline 200. The structure of the connecting ring 108 installed in this embodiment is also suitable for the telescopic rod being an active hydraulic cylinder.

[0072] As a preferred embodiment of the present invention, when the abutment member adopts the first embodiment described above, in order to realize multiple uses of the expansion support mechanism 100, such as Figure 3-8 As shown, the support seat described in the present invention has the same structure as the support mechanism 100, and the model of the mounting ring 101 of the support seat is larger than the mounting ring 101 of the support mechanism 100. During the installation of the support seat, multiple mounting rings 101 of the support seats are coaxially arranged, and multiple fixing rods 802 are used to connect these mounting rings 101 together. A connecting rod 801 is installed on the fixing rod 802, and the lower end of the connecting rod 801 is fixed to the base 800. The support members on the support mechanism 100 are removed and installed on the mounting ring 101 of the support seat in sequence, and it is ensured that the number of these support members located at the lower part of the mounting ring 101 is greater than the number at the upper part. Since during the support and installation process of the municipal pipe 200, the support seat bears the gravity of the municipal pipe 200, and the number of support members located at the lower part of the mounting ring 101 is larger, thereby fully and effectively supporting the municipal pipe 200, and the upper and obliquely above support members play the role of limiting and correcting, ensuring that the municipal pipe 200 is accurately installed in the channel. The support seat of this embodiment can also adopt a plurality of lifting cylinders 804 installed on the base 800. These lifting cylinders 804 are connected to the mounting ring 101 through the connecting arm 803. The mounting ring 101 can adopt the above-mentioned large-scale structure or a semi-annular structure. When the semi-annular structure is adopted, the upper end of the semi-annular structure is in an open state, the support member is installed on the semi-annular structure, and the lifted municipal pipeline 200 is placed in the semi-annular structure through the opening of the semi-annular structure. This embodiment realizes the lifting and lowering of the semi-annular structure through the lifting cylinder 804, thereby achieving the purpose of installation alignment.

[0073] As a preferred embodiment of the present invention, in order to facilitate the lifting of the municipal pipeline 200, as Figure 2As shown, support mechanisms 100 are installed at both ends of the municipal pipeline 200, and a lifting rod is used to connect to each support mechanism 100, wherein the lifting rod is two positioning rods 600 respectively connected to the corresponding support mechanism 100, and each positioning rod 600 is rotatably connected to a bending suspension rod 602 via an adapter 601. The ends of the two bending suspension rods 602 are close to each other, and fixed lifting rings 603 are installed at the ends of the bending suspension rods 602 close to each other. The two fixed lifting rings 603 are respectively connected to the ends of the wire rope 700, and then the lifting operation is performed by a crane. When the municipal pipeline 200 is being lifted, the bending suspension rod 602 is allowed to rotate to a certain extent with respect to the municipal pipeline 200, thereby avoiding accidents such as damage to the wire rope 700 or the bending suspension rod 602 due to rigid pulling.

[0074] As a preferred embodiment of the present invention, Figure 1 As shown, the pipe transfer fixing frame 500 includes a joint sleeve 501 constructed thereon and located at both ends of each municipal pipe 200, the support mechanism 100 is connected to the corresponding joint sleeve 501 through a positioning rod 600, and the lower end of the pipe transfer fixing frame 500 is constructed with a base plate 502.

[0075] As a preferred embodiment of the present invention, each telescopic member 103 is pivotally connected to the hoop 102, and an elastic tensioning member 106 or a pressing member 105 is detachably installed between the two corresponding telescopic members 103. The pressing member 105 is used to press against the wall of the municipal pipe 200. The specific structure of the elastic tensioning member 106 is as follows: Figure 8 As shown, a hard spring 1061 is provided between two corresponding telescopic members 103, and connecting blocks 1062 are respectively constructed at the axial ends of the hard spring 1061. Fixing hoops 1063 are respectively installed on the two telescopic members 103, and the fixing hoops 1063 are connected to the corresponding connecting blocks 1062. The two telescopic members 103 stretch and drive the abutment members to abut against the pipe wall. At this time, the hard spring 1061 is in a stretched state. Since the hard spring 1061 stretches the telescopic member 103, the abutment members are firmly grasped on the pipe wall. Moreover, when the support mechanism 100 with the elastic tensioning member 106 is changed into a support seat, when the support seat supports the municipal pipeline 200, the elastic tensioning member 106 plays a certain buffering role. The specific structure of the pressing member 105 is as follows: Figure 7As shown, a pressure wheel 1051 is provided between two corresponding telescopic parts 103, and the pressure wheel 1051 is hinged to two hinged rods 1052, and the other ends of the hinged rods 1052 are hinged to clamps 1053, each clamp 1053 is connected to the corresponding telescopic part 103. When the abutment part abuts against the pipe wall of the municipal pipeline 200, the pressure wheel 1051 also abuts against the pipe wall, and the two corresponding telescopic parts 103 can be opened and closed to achieve the pressure wheel 1051 abutting against the pipe wall, and then the telescopic part 103 is controlled to extend, so that the abutment part abuts against the pipe wall, thereby achieving sufficient and stable contact between the entire support part and the pipe wall.

[0076] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A construction method for non-top excavation municipal pipelines, characterized in that: The steps include: S1. Install the municipal pipeline layer by layer on the pipeline transfer fixing frame, and provide support mechanisms on the inner walls of at least two ends of each municipal pipeline located on both sides of the pipeline transfer fixing frame, each support mechanism being detachably connected to the corresponding end of the pipeline transfer fixing frame; S2. The pipeline transfer fixture is hoisted onto the transport equipment by a lifting device. The transport equipment transports the pipeline transfer fixture to the construction site, and the pipeline transfer fixture is hoisted to the predetermined location by the lifting device. S3. Separate the support mechanisms at both ends of the municipal pipeline from the pipeline transfer fixtures, connect the lifting rods to the two support mechanisms, and connect the lifting rods to the hooks of the lifting equipment via wire ropes. Operate the lifting equipment to lift the municipal pipeline onto the support base, which is fixedly installed in the passage excavated by the shield machine. S4. A guide screw is coaxially mounted on the output shaft of the power motor. The guide screw coincides with the axis of the municipal pipeline and is in transmission connection with the support mechanism. The power motor drives the guide screw to rotate, and the municipal pipeline gradually enters the channel. S5. When the municipal pipeline reaches the predetermined position, the supporting mechanism releases the support for the municipal pipeline and removes it; S6. Repeat steps S3-S5 to transport the municipal pipes into the channel one by one, and ensure that the ends of adjacent municipal pipes are spliced and fixed; S7. Municipal pipeline installation is completed.

2. The construction method of a non-top excavation municipal pipeline according to claim 1, characterized in that: In step S4, the support mechanism is adjusted so that it is located between the grouting pipe and the municipal pipeline, and supports the grouting pipe and the municipal pipeline, and ensures that the axes of the two coincide. An external frame is installed on the support mechanism near one end of the power motor. The external frame is connected to the guide screw for transmission, and the power motor drives the grouting pipe and the municipal pipeline to extend into the channel synchronously.

3. The construction method of a non-top excavation municipal pipeline according to claim 2, characterized in that: Multiple grouting pipes and municipal pipelines are gradually extended into the channel, and it is ensured that the adjacent grouting pipes are spliced and fixed at the end, and the adjacent municipal pipelines are spliced and fixed at the end, and sealing air bags are respectively installed at both ends of the channel. Each of the sealing air bags is inflated and sealed between the grouting pipe and the municipal pipeline. A plurality of grouting holes and exhaust holes are respectively opened on the grouting pipe, and these grouting holes and exhaust holes are respectively connected to the outside world; the gap between the grouting pipe and the municipal pipeline is poured through the grouting holes until the concrete is filled.

4. The construction method of a non-top excavation municipal pipeline according to claim 1, characterized in that: The support mechanism includes a mounting ring, on which a plurality of support members are mounted along its circumference, and the support members are adjustable along the center line of the mounting ring. Each of the support members abuts against the inner wall or outer wall of the municipal pipeline.

5. The construction method of a non-top excavation municipal pipeline according to claim 4, characterized in that: The support member includes two telescopic members connected to the hoop at one end, and the two telescopic members are symmetrically arranged on both sides of the mounting ring. The hoop is mounted and tightened on the mounting ring, and an abutment member is detachably connected to one end of each telescopic member away from the mounting ring.

6. The construction method of a non-top excavation municipal pipeline according to claim 5, characterized in that: The abutment member includes a wheel body connected via a wheel seat; the support seat has the same structure as the support mechanism, and the model of the mounting ring of the support seat is larger than the mounting ring of the support mechanism. During the installation of the support seat, the mounting rings of multiple support seats are coaxially arranged, and multiple fixing rods are used to connect these mounting rings together. A connecting rod is installed on the fixing rod, and the lower end of the connecting rod is fixed to the base. The support members on the support mechanism are removed and installed on the mounting ring of the support seat in turn, and it is ensured that the number of these support members located at the lower part of the mounting ring is greater than the number at the upper part.

7. The construction method of a non-top excavation municipal pipeline according to claim 5, characterized in that: Each of the telescopic members and the hoop is pivotally connected to each other, and an elastic tensioning member or a pressing member for pressing against the wall of a municipal pipeline is detachably installed between the two telescopic members.

8. The construction method of a non-top excavation municipal pipeline according to claim 5, characterized in that: The abutment member comprises a fixing belt installed between the two telescopic members. The middle portion of the fixing belt is disconnected and connected via a spring net. The surface of the fixing belt corresponding to the municipal pipeline is covered with anti-slip teeth.

9. The construction method of a non-top excavation municipal pipeline according to claim 5, characterized in that: The abutment member includes a rubber grinding ball installed at the end of the telescopic member, and a connecting ear with a strip-shaped channel is constructed on each telescopic member. The telescopic members located on the same side are connected via a connecting ring, and the connecting ring passes through the strip channels of the corresponding connecting ears. At least two adjustment cylinders are connected between the mounting ring and the connecting ring along the circumference of the two.

10. The construction method of a non-top excavation municipal pipeline according to claim 5, characterized in that: The abutment member includes an abutment airbag that is sleeved outside the supporting mechanism. The abutment airbag has a hollow inflation cavity and connecting edges constructed on both sides thereof. A connecting joint is constructed on each connecting edge and corresponding to the telescopic member. Each connecting joint is detachably connected to the end of the corresponding telescopic member; the opening angle of the two corresponding telescopic members is adjusted, and then the telescopic length of the telescopic member is controlled to change the shape of the abutment airbag, and then the inflation cavity is inflated to change the contact area between the abutment airbag and the pipe wall of the municipal pipeline.

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