Foundation pit road crossing cast-in-place slab communication maintaining shortcut pipeline hanging, relocation and construction method

Abstract

The invention relates to a foundation pit road crossing cast-in-place slab communication maintaining shortcut pipeline hanging, relocation and construction method. The method comprises the steps that latticed columns are arranged on the inner side of a steel casing, and a latticed column precise positioning auxiliary device is arranged on the outer side of the steel casing; a cast-in-place shortcut template is arranged at the top of the lattice column; double-layer batten plates are arranged at the tops of the latticed columns, channel steel is welded to the upper batten plates, and lower supports are erected on the lower batten plates; a pipeline bottom plate is erected between the channel steel and the lower support, a damping base is arranged in a pipeline bottom plate groove, and a water supply pipe is clamped and fixed in the pipeline bottom plate groove; and a gas pipe is clamped and fixed in the modified U-shaped concrete groove. The adjustable lattice column accurate positioning auxiliary device has the beneficial effects that the lattice column installation error is reduced, and the lattice column installation accuracy and reliability are ensured; the formwork erecting mode is innovated, the economic benefits of the construction process are improved, the working procedures are more convenient, and the influence on traffic guide and modification timeliness is reduced; and due to the pipeline relocation structure, the influence caused by vehicle vibration is reduced, and the stability of the pipeline in the working process is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the field of pipeline relocation, and particularly relates to a method for hanging and relocating pipelines and constructing a temporary traffic lane with a cast-in-place slab across a foundation pit road and ensuring traffic flow. Background Art

[0002] In deep foundation pit engineering, the technology of using lattice columns to support and combining with cast-in-place concrete slabs is often adopted for the pipeline relocation of the road across the foundation pit. However, the traditional construction method has the following technical bottlenecks: insufficient positioning accuracy of lattice columns: traditional construction relies on manual positioning with a total station and fixing with simple jigs. Affected by the displacement of foundation pit soil and operation errors, the perpendicularity deviation of lattice columns generally exceeds 5 mm, resulting in eccentric force on the support system and prone to structural instability.

[0003] Furthermore, in the conventional underground pipeline relocation suspension scheme, steel wires are often directly used to tie the pipelines, lacking a buffer structure and rigid fixing points. Under the action of vehicle dynamic loads, cumulative displacement is likely to occur at the pipeline interfaces, and the measured vibration displacement reaches 8 - 12 mm, causing risks of gas or water supply pipeline leakage. At the same time, in the existing construction technology, the temporary traffic lane adopts a separately erected full hall scaffolding support system, which is constructed separately from the lattice column structure, resulting in complex process connection and a concrete curing period of more than 7 days, seriously affecting the timeliness of traffic diversion.

[0004] The above defects seriously restrict the safety and economy of pipeline relocation in complex subway foundation pit projects. It is urgent to develop an integrated solution that integrates precise positioning, rigid hanging of pipelines, and rapid formwork support, and form a method for hanging and relocating pipelines and constructing a temporary traffic lane with a cast-in-place slab across a foundation pit road to solve the deficiencies of the existing technology. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the existing technology and provide a method for hanging and relocating pipelines and constructing a temporary traffic lane with a cast-in-place slab across a foundation pit road.

[0006] This hanging and relocating system for pipelines of the cast-in-place slab of the road across the foundation pit includes: lattice columns are arranged inside the steel casing of the pile in the foundation pit, and a precise positioning auxiliary device for lattice columns is arranged outside the steel casing; the precise positioning auxiliary device for lattice columns is symmetrically provided with adjusting components, and the adjusting components are attached to the side wall of the lattice column lacing plate; a cast-in-place temporary traffic lane formwork is arranged at the top of the lattice column, and the cast-in-place temporary traffic lane formwork includes a concrete support formwork and a U-shaped formwork; the concrete support formwork is arranged at the top of the lattice column, a U-shaped formwork is connected between the concrete support formworks and a U-shaped airbag is arranged inside; a double-layer lacing plate is arranged at the top of the lattice column, a channel steel is welded to the upper lacing plate, and a lower support is erected on the lower lacing plate; a pipeline bottom plate is erected between the channel steel and the lower support, a shock-absorbing base is arranged in the groove of the pipeline bottom plate and a water supply pipe is clamped; a relocated U-shaped concrete groove is cast in the U-shaped formwork and a gas pipe is clamped.

[0007] Preferably, channel steel back ribs are symmetrically and evenly distributed on the outer wall of the lattice column precise positioning auxiliary device. A reaction force cross beam is provided at the bottom of the adjustment assembly, and the end of the reaction force cross beam is fixed in the groove of the channel steel back rib; a reaction force fixing part is connected to the top surface of the reaction force cross beam. Horizontally arranged from top to bottom towards the inside of the steel casing are a positioning rotating rod, a connecting rod with a wedge plate, and a hydraulic fine-tuning jack. The other end of the hydraulic fine-tuning jack is connected to a buffer plate, the other end of the positioning rotating rod is connected to a laser positioning wedge block, the other end of the connecting rod with a wedge plate is connected to a wedge plate, and the laser positioning wedge block slides outside the wedge plate; an inclined column is connected to the channel steel back rib between the adjustment assemblies. A pulley-equipped angle steel is provided at the top of the inclined column, and the pulley-equipped angle steel fits against the edge of the lattice column limb.

[0008] Preferably, the lattice column precise positioning auxiliary device is divided into two units, and ear plates are provided at both ends; U-shaped quick connection plates are clamped on the tops of adjacent ear plates, and quick connection fixing bolts are fastened between the ear plates and the quick connection plates.

[0009] Preferably, the bottom of the lattice column is fixed on the foundation pit, and a concrete support formwork is supported at the top; a concrete support bottom plate is connected to the side surface at the bottom end of the concrete support formwork. Concrete support is poured in the space formed by the concrete support formwork and the concrete support bottom plate; a splicing end is provided at the contact surface between the concrete support formwork and the U-shaped formwork. A lattice column connecting plate is provided at the bottom surface of the concrete support formwork and fits against the outside of the upper lacing plate of the lattice column. The lattice column connecting plate is connected to the opposite lacing plate by bolts.

[0010] Preferably, a channel-shaped connecting piece is provided at the top of the channel steel. A cross bar is connected between the channel-shaped connecting pieces. A hanging piece is connected to the end of the cross bar. A pipeline bottom plate is suspended between the hanging pieces. A lower support is provided at the bottom of the pipeline bottom plate. A shock-absorbing base is provided in the groove of the pipeline bottom plate. A rotating hoop is connected to the top end of the shock-absorbing base; one end of the rotating hoop is connected to a rotating shaft, and the other end is a fixed end. A water supply pipe is clamped between the shock-absorbing base and the rotating hoop.

[0011] Preferably, a U-shaped airbag is provided inside the U-shaped formwork. A relocated U-shaped concrete groove is poured between the U-shaped formwork and the U-shaped airbag. A gas pipe is clamped in the relocated U-shaped concrete groove.

[0012] The construction method for the hanging and relocating of the pipeline on the cast-in-place slab temporary access road across the foundation pit using this hanging and relocating system includes the following steps:

[0013] Step 1: Install the lattice column precise positioning auxiliary device and complete the installation of the lattice column;

[0014] Step 2: Use the lattice column as a cantilever fulcrum to install the cast-in-place temporary access road formwork; weld channel steel on the upper lacing plate of the lattice column, install a lower support on the lower lacing plate, and then install the pipeline bottom plate;

[0015] Step 3: Pour concrete to form a concrete support inside the concrete support formwork, and inflate the U-shaped airbag; after the steel bars are tied, pour concrete into the relocated U-shaped concrete trough.

[0016] Step 4: Remove the U-shaped airbag, lay a rubber-spring composite vibration isolation layer on the shock-absorbing base, and then lay the water supply pipe. After the gas pipe is wrapped with a rubber-spring composite vibration isolation layer, relocate the gas pipe and fix it in the U-shaped concrete trough.

[0017] Preferably, channel back ribs are symmetrically and evenly distributed on the outer wall of the lattice column precise positioning auxiliary device. A reaction force cross beam is provided at the bottom of the adjustment assembly, and the end of the reaction force cross beam is fixed in the groove of the channel back rib; a reaction force fixing member is connected to the top surface of the reaction force cross beam. From top to bottom, a positioning rotating rod, a connecting rod with a wedge plate, and a hydraulic fine-tuning jack are horizontally arranged towards the inside of the steel casing in sequence. The other end of the hydraulic fine-tuning jack is connected to a buffer plate, the other end of the positioning rotating rod is connected to a laser positioning wedge block, the other end of the connecting rod with a wedge plate is connected to a wedge plate, and the laser positioning wedge block slides outside the wedge plate; an inclined column is connected to the channel back rib between the adjustment assemblies. A pulley-equipped angle steel is provided at the top of the inclined column, and the pulley-equipped angle steel fits with the edge of the lattice column limb.

[0018] Preferably, after the lattice column is in place in Step 1, start the hydraulic fine-tuning jack, push the buffer plate to press against the lattice column lacing plate, monitor the verticality in real time through the laser positioning wedge block, and adjust the stroke of the jack to reduce the installation error of the lattice column; use the pulley-equipped angle steel to slide and guide along the lattice column member to complete the installation of the lattice column.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1) The present invention adopts an adjustable lattice column precise positioning auxiliary device. Through the cooperation of the laser positioning wedge block and the hydraulic fine-tuning jack, the installation error of the lattice column is reduced, ensuring the accuracy and reliability of the lattice column installation.

[0021] 2) The present invention innovates the formwork support method, ensures the connection between the temporary access road formwork and the lattice column, cancels the traditional floor brackets, reduces the amount of support structures in the formwork support system, improves the economic benefits during the construction process; the process is more convenient than the prior art, reducing the impact on the timeliness of traffic diversion.

[0022] 3) In the present invention, a rubber-spring composite vibration isolation layer is provided in the shock-absorbing base for pipeline relocation and the relocated U-shaped concrete trough, reducing the influence brought by vehicle vibration and ensuring the stability of the pipeline during operation. Description of the Drawings

[0023] Figure 1 It is an overall schematic diagram of the hanging relocation of pipelines in the temporary access road cast-in-place slab across the foundation pit.

[0024] Figure 2Schematic diagram of the installation of a lattice column by a precise positioning auxiliary device for lattice columns;

[0025] Figure 3 Schematic diagram of a precise positioning auxiliary device for lattice columns;

[0026] Figure 4 Schematic diagram of a unit of a precise positioning auxiliary device for lattice columns;

[0027] Figure 5 Schematic diagram of a verticality adjustment component for lattice columns;

[0028] Figure 6 Schematic diagram of the pipeline suspension relocation - cast - in - place slab traffic - maintaining access road

[0029] Figure 7 Schematic diagram of the suspension relocation of pipeline suspension members for earth;

[0030] Figure 8 Schematic diagram of the relocation of the U - shaped concrete trough pipeline;

[0031] Explanation of reference numerals: 1. Foundation pit; 2. Precise positioning auxiliary device for lattice columns; 3. Reaction cross beam; 4. Reaction inclined brace; 5. Support vertical rod group; 6. Inclined column; 7. Angle steel with pulley; 8. Arc plate; 9. Channel steel back brace; 10. Steel casing connecting plate; 11. Jack bottom plate; 12. Hydraulic fine - tuning jack; 13. Link rod with wedge plate; 14. Positioning rotating rod; 15. Laser positioning wedge block; 16. Buffer top plate; 17. Lattice column; 18. Quick - connection fixing bolt; 19. Quick - connection plate; 20. U - shaped formwork; 21. Lattice column connecting plate; 22. Splicing end; 23. Splicing bolt; 24. U - shaped airbag; 25. Concrete support formwork; 26. Concrete support bottom plate; 27. Groove - shaped connecting piece; 28. Cross bar; 29. Channel steel; 30. Suspension member; 31. Lower support; 32. Shock - absorbing base; 33. Rotating shaft; 34. Pipeline bottom plate; 35. Rotating hoop; 36. Fixed end; 37. Water supply pipe; 38. Gas pipe; 39. Concrete support; 40. Cast - in - place access road; 41. Relocated U - shaped concrete trough. Detailed implementation manners

[0032] The present invention will be further described below in conjunction with embodiments. The description of the following embodiments is only for helping to understand the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0033] Embodiment 1

[0034] As an embodiment, a pipeline suspension relocation system for a cast - in - place slab traffic - maintaining access road across a foundation pit is proposed, as shown in Figures 1 to 8As shown in the figure, it includes: inside the steel casing of the pile in the foundation pit 1, there is a lattice column 17, and outside the steel casing, there is a precise positioning auxiliary device 2 for the lattice column; the precise positioning auxiliary device 2 for the lattice column is symmetrically provided with adjusting components, and the adjusting components are attached to the side wall of the lattice plate of the lattice column 17; at the top of the lattice column 17, there is a cast-in-place access road formwork, which includes a concrete support formwork 25 and a U-shaped formwork 20; the concrete support formwork 25 is arranged at the top of the lattice column 17, and a U-shaped formwork 20 is connected between the concrete support formworks 25 and a U-shaped airbag 24 is arranged inside; at the top of the lattice column 17, there is a double-layer lattice plate, the upper lattice plate is welded with a channel steel 29, and the lower lattice plate is provided with a lower support 31; between the channel steel 29 and the lower support 31, there is a pipeline bottom plate 34, and a shock-absorbing base 32 is arranged in the groove of the pipeline bottom plate 34 and a water supply pipe 37 is clamped; the U-shaped formwork 20 is poured with a relocated U-shaped concrete groove 41 and a gas pipe 38 is clamped.

[0035] As Figure 2 shown, on the outer wall of the precise positioning auxiliary device 2 for the lattice column, channel steel back ribs 9 are symmetrically and evenly distributed. At the bottom of the adjusting component, there is a reaction cross beam 3, and the end of the reaction cross beam 3 is fixed in the groove of the channel steel back rib 9; on the top surface of the reaction cross beam 3, there is a reaction fixing piece. The reaction fixing piece is horizontally provided with a positioning rotating rod 14, a connecting rod with a wedge plate 13, and a hydraulic fine-tuning jack 12 from top to bottom towards the inside of the steel casing. The other end of the hydraulic fine-tuning jack 12 is connected with a buffer plate 16, the other end of the positioning rotating rod 14 is connected with a laser positioning wedge block 15, the other end of the connecting rod with a wedge plate 13 is connected with a wedge plate, and the laser positioning wedge block 15 slides outside the wedge plate; between the adjusting components, the channel steel back ribs 9 are connected with an inclined column 6, and at the top of the inclined column 6, there is an angle steel with a pulley 7, and the angle steel with a pulley 7 is attached to the edge of the column limb of the lattice column 17.

[0036] As Figure 3 and Figure 4 shown, a steel casing connecting plate 10 is attached to the outer wall of the steel casing of the pile in the foundation pit 1, the precise positioning auxiliary device 2 for the lattice column is attached to the outer wall of the steel casing connecting plate 10, channel steel back ribs 9 are symmetrically and evenly distributed on the outer wall of the precise positioning auxiliary device 2 for the lattice column, the precise positioning auxiliary device 2 for the lattice column is divided into two units, and ear plates are provided at both ends; at the top of the adjacent ear plates, a U-shaped quick connection plate 19 is clamped, and a quick connection fixing bolt 18 is fastened between the ear plate and the quick connection plate 19.

[0037] As Figure 5As shown in the figure, the reaction force fixing member includes a reaction force diagonal brace 4, a support vertical pole group 5, and an arc plate 8; the top surface of the reaction force cross beam 3 is connected to the reaction force diagonal brace 4, and the other end of the reaction force diagonal brace 4 is connected to the support vertical pole group 5; the other side of the support vertical pole group 5 is attached to the arc plate 8, the bottom of the arc plate 8 is provided with a jack bottom plate 11, the top of the jack bottom plate 11 is provided with a hydraulic fine-tuning jack 12, one end of the hydraulic fine-tuning jack 12 is connected to the side wall of the arc plate 8, and the other end is connected to a buffer plate 16; a connecting rod 13 with a wedge plate and a positioning rotating rod 14 are connected between the arc plate 8 and the laser positioning wedge block 15.

[0038] As Figures 6 to 8 shown in the figure, the top of the lattice column 17 supports a concrete support formwork 25; the bottom end side of the concrete support formwork 25 is connected to a concrete support bottom plate 26, and concrete support 39 is poured in the space formed by the concrete support formwork 25 and the concrete support bottom plate 26; a splicing end 22 is provided at the contact surface between the concrete support formwork 25 and the U-shaped formwork 20, the bottom surface of the concrete support formwork 25 is provided with a lattice column connecting plate 21 and is attached to the outside of the upper lacing plate of the lattice column 17, and the lattice column connecting plate 21 is bolted to the opposite lacing plate.

[0039] Embodiment 2

[0040] As another embodiment, this embodiment 2 is proposed on the basis of embodiment 1. This construction method for the relocation of the pipeline hanging under the cast-in-place slab of the road across the foundation pit includes the following steps:

[0041] Step 1: Install the lattice column precise positioning auxiliary device 2 and complete the installation of the lattice column 17; As Figure 2 and Figure 5 shown in the figure, channel steel back ribs 9 are symmetrically and evenly distributed on the outer wall of the lattice column precise positioning auxiliary device 2, a reaction force cross beam 3 is provided at the bottom of the adjusting assembly, and the end of the reaction force cross beam 3 is fixed in the groove of the channel steel back rib 9; a reaction force fixing member is connected to the top surface of the reaction force cross beam 3, and a positioning rotating rod 14, a connecting rod 13 with a wedge plate, and a hydraulic fine-tuning jack 12 are horizontally arranged in sequence from top to bottom on the reaction force fixing member facing the inside of the steel casing. The other end of the hydraulic fine-tuning jack 12 is connected to a buffer plate 16, the other end of the positioning rotating rod 14 is connected to a laser positioning wedge block 15, the other end of the connecting rod 13 with a wedge plate is connected to a wedge plate, and the laser positioning wedge block 15 slides outside the wedge plate; an inclined column 6 is connected to the channel steel back rib 9 between the adjusting assemblies, a pulley angle steel 7 is provided at the top of the inclined column 6, and the pulley angle steel 7 is in contact with the edge of the column limb of the lattice column 17.

[0042] Step 2: Install the cast-in-place access road formwork with the lattice column 17 as the cantilever fulcrum; Channel steel 29 is welded to the upper lacing plate of the lattice column 17, a lower support 31 is installed on the lower lacing plate, and then the pipeline bottom plate 34 is installed.

[0043] As Figure 7As shown, a channel-shaped connecting piece 27 is provided at the top of the channel steel 29. A cross bar 28 is connected between the channel-shaped connecting pieces 27. A hanging piece 30 is connected to the end of the cross bar 28. A pipeline bottom plate 34 is suspended between the hanging pieces 30. A lower support 31 is provided at the bottom of the pipeline bottom plate 34. A shock-absorbing base 32 is provided in the groove of the pipeline bottom plate 34. The top end of the shock-absorbing base 32 is connected to a rotating hoop 35; one end of the rotating hoop 35 is connected to a rotating shaft 33, and the other end is a fixed end 36. A water supply pipe 37 is clamped between the shock-absorbing base 32 and the rotating hoop 35.

[0044] Step 3: Pour concrete to form a concrete support 39 in the concrete support formwork 25, and inflate the U-shaped airbag 24; after the steel bars are tied, pour concrete into the relocated U-shaped concrete trough 41.

[0045] Step 4: Remove the U-shaped airbag 24, lay a rubber-spring composite vibration isolation layer on the shock-absorbing base 32, then lay the water supply pipe 37. After the gas pipe 38 is wrapped with a rubber-spring composite vibration isolation layer, relocate the gas pipe 38 and clamp it into the U-shaped concrete trough 41. As Figure 6 As shown, a U-shaped airbag 24 is provided in the U-shaped formwork 20. A relocated U-shaped concrete trough 41 is poured between the U-shaped formwork 20 and the U-shaped airbag 24. A gas pipe 38 is clamped in the relocated U-shaped concrete trough 41.

[0046] It should be noted that the parts that are the same or similar to those in the first embodiment in this embodiment can be referred to each other, and will not be described in detail in this application.

[0047] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

Claims

1. A pipeline hanging and relocation system for cast-in-place slabs across foundation pit roads, characterized in that: include: A lattice column is provided on the inner side of the steel casing of the pile in the foundation pit, and a lattice column precise positioning auxiliary device is provided on the outer side of the steel casing; the lattice column precise positioning auxiliary device is symmetrically provided with adjustment components, and the adjustment components are attached to the side walls of the lattice column plate; a cast-in-place walkway formwork is provided on the top of the lattice column, and the cast-in-place walkway formwork includes a concrete support formwork and a U-shaped formwork; the concrete support formwork is provided on the top of the lattice column, and a U-shaped formwork is connected between the concrete support formworks and a U-shaped airbag is provided inside; a double-layer plate is provided on the top of the lattice column, the upper plate is welded with channel steel, and the lower plate is provided with a lower support; a pipeline bottom plate is provided between the channel steel and the lower support, and a shock-absorbing base is provided in the pipeline bottom plate groove and a water supply pipe is clamped in it; the U-shaped formwork is cast with a relocation U-shaped concrete groove and a gas pipe is clamped in it.

2. The pipeline hanging and relocation system for cast-in-place slabs across foundation pit roads according to claim 1 is characterized in that: The outer wall of the lattice column precise positioning auxiliary device is symmetrically and evenly distributed with channel steel back ribs, and a reaction beam is provided at the bottom of the adjustment component, and the end of the reaction beam is fixed in the channel steel back rib groove; the top surface of the reaction beam is connected with a reaction fixing piece, and the reaction fixing piece is horizontally provided with a positioning rotating rod, a connecting rod with a wedge plate and a hydraulic fine-tuning jack from top to bottom toward the inside of the steel casing, and the other end of the hydraulic fine-tuning jack is connected with a buffer plate, and the other end of the positioning rotating rod is connected with a laser positioning wedge block, and the other end of the connecting rod with a wedge plate is connected with a wedge plate, and the laser positioning wedge block slides on the outside of the wedge plate; the channel steel back ribs between the adjustment components are connected with inclined columns, and the top of the inclined columns is provided with angle steels with pulleys, and the angle steels with pulleys fit the edges and corners of the lattice column limbs.

3. The pipeline hanging and relocation system for cast-in-place slabs across foundation pit roads according to claim 1 is characterized in that: The lattice column precise positioning auxiliary device is divided into two units, both ends of which are provided with ear plates; U-shaped quick-connecting plates are clamped on the tops of adjacent ear plates, and the ear plates and quick-connecting plates are fastened with quick-connecting fixing bolts.

4. The pipeline hanging and relocation system for cast-in-place slabs across foundation pit roads according to claim 1 is characterized in that: The bottom of the lattice column is fixed on the foundation pit, and the top is supported by a concrete support formwork; The side surface of the bottom end of the concrete support formwork is connected to a concrete support base plate, and concrete support is cast in the space formed by the concrete support formwork and the concrete support base plate; the contact surface of the concrete support formwork and the U-shaped formwork is provided with a splicing end, the bottom surface of the concrete support formwork is provided with a lattice column connecting plate and is attached to the outer side of the upper lacing plate of the lattice column, and the lattice column connecting plate is connected to the opposite side lacing plate by bolts.

5. The pipeline hanging and relocation system for cast-in-place slabs across foundation pit roads according to claim 1 is characterized in that: A groove-shaped connecting piece is provided on the top of the channel steel, cross bars are connected between the groove-shaped connecting pieces, hanging pieces are connected to the ends of the cross bars, pipeline base plates are suspended between the hanging pieces, a lower support is provided at the bottom of the pipeline base plate, a shock-absorbing base is provided in the pipeline base plate groove, and a rotating hoop is connected to the top of the shock-absorbing base; one end of the rotating hoop is connected to a rotating shaft, and the other end is a fixed end, and a water supply pipe is clamped between the shock-absorbing base and the rotating hoop.

6. The pipeline hanging and relocation system for cast-in-place slabs across foundation pit roads according to claim 1 is characterized in that: A U-shaped air bag is arranged in the U-shaped template, a U-shaped concrete groove is cast between the U-shaped template and the U-shaped air bag, and a gas pipe is stuck in the U-shaped concrete groove.

7. A construction method for hanging and relocating pipelines across a foundation pit road cast-in-place slab to maintain access using the hanging and relocation system of claim 1, characterized in that: The following steps are involved: Step 1: Install the lattice column precise positioning auxiliary device and complete the lattice column installation; Step 2: Use the lattice column as a cantilever support to install the cast-in-place walkway formwork; weld the channel steel on the upper gusset plate of the lattice column, install the lower support on the lower gusset plate, and then install the pipeline bottom plate; Step 3: Pour concrete into the concrete support formwork to form a concrete support and inflate the U-shaped airbag; after the steel bars are tied, pour concrete into the relocated U-shaped concrete trough; Step 4: Remove the U-shaped airbag, lay a rubber-spring composite vibration isolation layer on the shock-absorbing base, then lay the water pipe and gas pipe, wrap the rubber-spring composite vibration isolation layer on the outside, and then move the gas pipe and fix it in the U-shaped concrete groove.

8. The construction method for hanging and relocating pipelines across the cast-in-place slab of foundation pit road according to claim 7 is characterized in that: The outer wall of the lattice column precise positioning auxiliary device is symmetrically and evenly distributed with channel steel back ribs, a reaction beam is provided at the bottom of the adjustment component, and the end of the reaction beam is fixed in the channel steel back rib groove; a reaction fixing piece is connected to the top surface of the reaction beam, and the reaction fixing piece is horizontally arranged with a positioning rotating rod, a connecting rod with a wedge plate and a hydraulic fine-tuning jack from top to bottom toward the inside of the steel casing, and the other end of the hydraulic fine-tuning jack is connected to a buffer plate, and the other end of the positioning rotating rod is connected to a laser positioning wedge block, and the other end of the connecting rod with a wedge plate is connected to the wedge plate, and the laser positioning wedge block slides on the outside of the wedge plate; the channel steel back ribs between the adjustment components are connected to inclined columns, and the top of the inclined columns is provided with angle steels with pulleys, and the angle steels with pulleys fit the edges and corners of the lattice column limbs.

9. The construction method for hanging and relocating pipelines across the cast-in-place slab of foundation pit road according to claim 8 is characterized in that: After the lattice column is in place in step one, start the hydraulic fine-tuning jack, push the buffer plate against the lattice column connecting plate, monitor the verticality in real time through the laser positioning wedge block, and adjust the jack stroke to reduce the lattice column installation error; use the pulley angle steel to slide along the lattice column limb guide to complete the lattice column installation.

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