CN111005320B - Pipeline laying method - Google Patents
Pipeline laying method Download PDFInfo
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- CN111005320B CN111005320B CN201911331486.6A CN201911331486A CN111005320B CN 111005320 B CN111005320 B CN 111005320B CN 201911331486 A CN201911331486 A CN 201911331486A CN 111005320 B CN111005320 B CN 111005320B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 50
- 230000002787 reinforcement Effects 0.000 claims abstract description 43
- 238000010276 construction Methods 0.000 claims abstract description 20
- 238000011835 investigation Methods 0.000 claims abstract description 10
- 238000009941 weaving Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 54
- 239000010959 steel Substances 0.000 claims description 54
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000009417 prefabrication Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a pipeline laying method, relates to the technical field of pipe bridge construction, and solves the problem that the construction of a pipe bridge crossing a river channel in the prior art wastes time and labor, and the technical scheme is characterized by comprising the following steps: a. performing on-site investigation; b. excavating a foundation pit; c. prefabricating a ground base pipe and a precast slab; d. maintaining the prefabricated member; e. weaving a reinforcement cage; f. hoisting the ground base pipe; g. placing a foundation cage; h. pouring a foundation; i. installing a tower crane; j. laying a precast slab; k. pouring concrete; dismantling the tower crane; m. installing an embedded part; n, paving concrete; o. installing a pipe support; p. lay the pipeline, need not to build the pier in the middle of the river course to need not to subside the cofferdam and also need not to draw water constantly, thereby make the construction operation can labour saving and time saving more.
Description
Technical Field
The invention relates to the technical field of pipe bridge construction, in particular to a pipeline laying method.
Background
During the laying process, pipelines for gas transmission, oil transmission and the like often cross natural or artificial obstacles such as rivers, lakes, seas, railways, roads, valleys and the like, and pipe bridges are built to cross the obstacles.
Present pipe bridge is when strideing across the river course, often needs to carry out the construction of pier in the middle of the river course now, then carries out laying of pipeline again, but carries out the construction of pier in the middle of the river course, need subside a cofferdam in the middle of the river course now, then take out the water in the middle of the cofferdam again, also need continuous water that will stretch out to take out during the construction, the construction is under construction completely in the middle of the cofferdam for there is the problem that wastes time and energy in the whole construction of pipe bridge.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a pipeline laying method, which does not need to build a pier in a river channel, thereby not needing to settle a cofferdam and pumping water all the time, and further leading the construction operation to be more time-saving and labor-saving.
In order to achieve the purpose, the invention provides the following technical scheme: a method of laying a pipeline comprising the steps of:
a. and (3) field investigation: before construction, performing site investigation, and determining the position of excavation of a foundation pit, the size of a foundation pipe and the specific size of a precast slab;
b. excavating a foundation pit: excavating foundation pits at the investigation positions on two sides of the river channel to reach a specified depth;
c. prefabrication of the ground pipe and the precast slab: prefabricating and molding a ground base pipe and a plurality of prefabricated plates, wherein the prefabricated plates are arranged in a square shape, a cavity is reserved in each prefabricated plate, the cavity penetrates through the prefabricated plates along the length direction of the prefabricated plates, and hoisting rings are embedded at four corners of the tops of the prefabricated plates; the foundation pipe is arranged in a tubular shape, four hoisting rings which are uniformly distributed around the axis of the foundation pipe are embedded in the top of the foundation pipe, connecting plates which are identical to the prefabricated plates in shape and size are integrally formed on the sides, close to each other, of the two foundation pipes, the connecting plates are horizontally arranged, and cavities in the connecting plates are communicated with cavities in the foundation pipe; reinforcing steel bars are pre-embedded in the precast slab, the connecting plate and the ground base pipe during prefabrication;
d. and (3) maintaining the prefabricated part: maintaining each prefabricated member, wherein a gunny bag sheet is covered on the surface of each prefabricated member during maintenance, so that the gunny bag sheet is kept in a wet state, and the maintenance time is not less than 14 days;
e. weaving a reinforcement cage: the steel reinforcement cage is woven by using steel reinforcements, when the steel reinforcement cage is woven, the shape and the size of the woven steel reinforcement cage are ensured to be the same as those of cavities in the prefabricated plates, and the quantity of the woven steel reinforcement cage is equal to the quantity of the prefabricated plates plus the quantity of the connecting plates;
f. hoisting the ground base pipe: hoisting the two ground tubes into a foundation pit, wherein the bottoms of the ground tubes are mutually contacted with the bottom of the foundation pit, the bottoms of the connecting plates are mutually contacted with the ground, the two connecting plates on the ground tubes are positioned at the sides, close to each other, of the two ground tubes, the length directions of the two connecting plates are the same, and the two side edges of the two connecting plates are parallel and level to each other;
g. placing a foundation cage: hoisting a foundation cage formed by weaving reinforcing steel bars into a foundation pipe, wherein the foundation cage is barrel-shaped, a horizontally arranged mounting plate is fixed at the top of the foundation cage, after the foundation cage is hoisted into a ground base pipe, the top of the mounting plate is ensured to be flush with the top of a connecting plate, then the woven reinforcing steel bar cage is placed into the connecting plate, and the reinforcing steel bar cage in the connecting plate and the foundation cage are welded together;
h. pouring a foundation: the top of the poured concrete is flush with the top of the connecting plate, and the concrete is cured after the pouring is finished;
i. installing a tower crane: after the concrete poured into the foundation is cured, mounting a tower crane on the mounting plate, and when the tower crane is mounted; the tower arms of the two tower cranes extend towards the direction of mutual approach, and the ends of the two tower arms close to each other are fixedly connected together;
j. laying a precast slab: laying the prefabricated plates from the two connecting plates to the direction close to each other, placing a reinforcement cage in a cavity of the connecting plates when laying the prefabricated plates, welding the reinforcement cage in the prefabricated plates to be hoisted on the reinforcement cage in the connecting plates, connecting steel strands to four hoisting rings at the tops of the prefabricated plates, fixedly connecting the other ends of the steel strands to tower arms at the tops of the prefabricated plates, and sleeving the prefabricated plates on the reinforcement cage; then welding the reinforcement cage placed in the next prefabricated plate, and then welding the next prefabricated plate; when the prefabricated plates are folded at the middle position of the bridge, abdicating grooves are reserved on two sides of the tops of the two folded prefabricated plates and are communicated with the cavity, and when the prefabricated plates are folded, two reinforcement cages are respectively placed in the two prefabricated plates, then the two prefabricated plates are laid, and then the reinforcement cages are welded after penetrating through the abdicating grooves; a reinforcing plate is arranged at the top of one end of the two precast slabs, which is close to each other, and the reinforcing plate is fixed on the two precast slabs through bolts;
k. pouring concrete: after the precast slabs are laid, pouring concrete into the cavities of the precast slabs, pouring the concrete into the abdication grooves of the two precast slabs in the middle, and curing the concrete after pouring is finished;
dismantling a tower crane: after concrete curing is finished, dismantling the tower crane and the steel strand;
m, installing embedded parts: installing an embedded part on the precast slab, wherein a plurality of vertically arranged connecting bolts for connecting pipeline supporting pieces are fixed on the embedded part;
n, paving concrete: pouring concrete on the top of the precast slab, curing the concrete after pouring, and exposing the top of the connecting bolt outside the concrete after pouring the concrete;
o. installing the pipe support: connecting the pipeline supporting piece to the top of the precast slab through a connecting bolt;
p, laying a pipeline: and erecting the pipeline.
Through adopting above-mentioned technical scheme, support the pipeline through setting up the ground parent tube and laying the prefabricated plate, need not to carry out the construction of pier in the middle of the river course to need not to draw water in the middle of the process of construction all the time, thereby make the construction operation can labour saving and time saving more.
The invention is further configured to: in the step c, a plurality of steel bar embedding grooves are reserved at the top of the prefabricated slab, and penetrate through the prefabricated slab along the length direction of the prefabricated slab; and in the step m, before the embedded parts are installed, laying steel bars in the steel bar burying groove of the precast slab.
Through adopting above-mentioned technical scheme, bury the groove underground through setting up the reinforcing bar to carry out laying of reinforcing bar before the installation built-in fitting, make can be in the same place concrete and steel bar connection after laying the concrete, form reinforced concrete earth, increased the intensity of the reinforcing bar of laying.
The invention is further configured to: and in the step m, the same steel bar penetrates through the steel bar burying grooves communicated with all the prefabricated plates.
Through adopting above-mentioned technical scheme, the same reinforcing bar runs through the reinforcing bar embedded groove that all prefabricated plates are linked together with the reinforcing bar, and the connection of reinforcing bar is not carried out through the welded mode to the intensity of reinforcing bar has been improved, thereby can improve the intensity of the concrete of laying.
The invention is further configured to: and in the step i, connecting the tower crane and the mounting plate together by using a high-strength bolt.
Through adopting above-mentioned technical scheme, use high strength bolt to link together tower crane and mounting panel and can improve the steadiness of tower crane.
The invention is further configured to: in the step i, a plurality of steel strands are fixed on one sides of the two tower cranes, which deviate from each other, and the other ends of the steel strands are fixedly connected to the ground.
Through adopting above-mentioned technical scheme, set up the steel strand wires through the one side that deviates from each other at two tower cranes, when laying the prefabricated plate, support the tower crane through the steel strand wires of one side that deviates from each other of two tower cranes, improve the steadiness of tower crane.
The invention is further configured to: and h, sealing the cavity of the connecting plate at one side of the connecting plate close to the ground base pipe, and pouring concrete into the ground base pipe.
Through adopting above-mentioned technical scheme, when carrying out concrete placement in the middle of the foundation pipe, the concrete can not flow in the middle of the cavity of connecting plate to make the later stage when pouring the cavity of prefabricated plate, the concrete can flow in the middle of the cavity of connecting plate, thereby has strengthened the steadiness of being connected between prefabricated plate and the connecting plate.
The invention is further configured to: in the step p, when erecting, the pipeline is firstly erected on the plurality of pipeline supporting pieces, the joints of the pipeline are aligned, and then the joints of the pipeline are connected and sealed.
By adopting the technical scheme, the pipelines are erected firstly and then the pipeline joints are sealed, so that the joints of two adjacent pipelines are aligned more easily.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. the invention supports the pipeline by arranging the ground base pipe and paving the precast slabs, and does not need to carry out the construction of piers in the river channel, so that water is not required to be pumped all the time in the construction process, and the construction operation can be more time-saving and labor-saving;
2. according to the invention, the steel strand is arranged on the side where the two tower cranes deviate from each other, and when the prefabricated plate is laid, the tower crane is supported through the steel strand on the side where the two tower cranes deviate from each other, so that the stability of the tower crane is improved.
Drawings
FIG. 1 is an isometric view of a ground pipe, a precast slab and a connecting plate of an example;
FIG. 2 is an isometric view of the prefabricated panel of the embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a diagram illustrating an embodiment of a yielding slot.
In the figure: 1. a ground pipe; 2. a connecting plate; 3. prefabricating a slab; 4. hoisting a ring; 5. a steel bar burying groove; 6. a yielding groove.
Detailed Description
Example (b): a method of laying a pipeline comprising the steps of:
a. and (3) field investigation: before construction, performing site investigation, and determining the position of excavation of a foundation pit, the size of a foundation pipe 1 and the specific size of a precast slab 3;
b. excavating a foundation pit: excavating foundation pits at the investigation positions on two sides of the river channel to reach a specified depth;
c. prefabrication of the ground pipe 1 and the precast slab 3: prefabricating and forming a ground pipe 1 and a plurality of prefabricated plates 3, referring to attached drawings 1 and 2, wherein the prefabricated plates 3 are arranged in a square shape, a cavity is reserved in each prefabricated plate 3, the cavity penetrates through the prefabricated plates 3 along the length direction of the prefabricated plates 3, hoisting rings 4 are pre-embedded at four corners of the tops of the prefabricated plates 3, a plurality of steel bar embedding grooves 5 are reserved at the tops of the prefabricated plates 3, and the steel bar embedding grooves 5 penetrate through the prefabricated plates 3 along the length direction of the prefabricated plates 3; referring to attached drawings 1 and 3, a ground base pipe 1 is arranged in a tubular shape, four hoisting rings 4 which are uniformly distributed around the axis of the ground base pipe 1 are embedded in the top of the ground base pipe 1, connecting plates 2 which are identical to prefabricated plates 3 in shape and size are integrally formed on the sides, close to each other, of the two ground base pipes 1, the connecting plates 2 are horizontally arranged, and cavities in the connecting plates 2 are communicated with cavities in the ground base pipe 1; reinforcing steel bars are embedded in the precast slab 3, the connecting plate 2 and the ground base pipe 1 during prefabrication;
d. and (3) maintaining the prefabricated part: maintaining each prefabricated member, wherein a gunny bag sheet is covered on the surface of each prefabricated member during maintenance, so that the gunny bag sheet is kept in a wet state, and the maintenance time is not less than 14 days;
e. weaving a reinforcement cage: the steel reinforcement cage is woven by using the steel reinforcement, when the steel reinforcement cage is woven, the shape and the size of the woven steel reinforcement cage are ensured to be the same as those of the cavity in the prefabricated plate 3, and the quantity of the woven steel reinforcement cage is equal to the quantity of the prefabricated plates 3 plus the quantity of the connecting plates 2;
f. hoisting the foundation pipe 1: hoisting the two-dimensional base pipe 1 into a foundation pit, enabling the bottom of the base pipe 1 to be in contact with the bottom of the foundation pit, enabling the bottom of the connecting plate 2 to be in contact with the ground, enabling the two connecting plates 2 on the two-dimensional base pipe 1 to be located on the sides, close to each other, of the two-dimensional base pipe 1, enabling the two connecting plates 2 to be identical in length direction and enabling two side edges of the two connecting plates 2 to be flush with each other;
g. placing a foundation cage: hoisting a foundation cage formed by weaving reinforcing steel bars into the foundation pipe 1, wherein the foundation cage is barrel-shaped, a horizontally arranged mounting plate is fixed at the top of the foundation cage, after the foundation cage is hoisted into the ground base pipe 1, the top of the mounting plate is ensured to be parallel and level with the top of the connecting plate 2, then the woven reinforcing steel bar cage is placed into the connecting plate 2, and the reinforcing steel bar cage in the connecting plate 2 is welded with the foundation cage;
h. pouring a foundation: sealing the cavity of the connecting plate 2 at one side of the connecting plate 2 close to the ground base pipe 1, then pouring concrete into the ground base pipe 1, wherein the top of the poured concrete is flush with the top of the connecting plate 2, and curing the concrete after pouring;
i. installing a tower crane: after concrete poured into the foundation is cured, mounting a tower crane on the mounting plate, connecting the tower crane and the mounting plate together by using a high-strength bolt when mounting the tower crane, fixing a plurality of steel strands on the sides of the two tower cranes, which are far away from each other, and fixedly connecting the other ends of the steel strands to the ground; the tower arms of the two tower cranes extend towards the direction of mutual approach, and the ends of the two tower arms close to each other are fixedly connected together;
j. laying a precast slab 3: the prefabricated slab 3 is laid from the two connecting plates 2 to the direction close to each other, when the prefabricated slab 3 is laid, a reinforcement cage is placed in a cavity of the connecting plate 2, then the reinforcement cage placed in the prefabricated slab 3 to be hoisted is welded on the reinforcement cage in the connecting plate 2, then steel stranded wires are connected to four hoisting rings 4 at the top of the prefabricated slab 3, the other end of each steel stranded wire is fixedly connected to a tower arm at the top of the prefabricated slab 3, and then the prefabricated slab 3 is sleeved on the reinforcement cage; then, welding a reinforcement cage placed in the next prefabricated plate 3, and then welding the next prefabricated plate 3; referring to the attached drawing 4, when the precast slabs 3 are folded at the middle position of the bridge, the abdicating grooves 6 are reserved on both sides of the tops of the two folded precast slabs 3, the abdicating grooves 6 are communicated with the cavity, when the precast slabs 3 are folded, the two reinforcement cages are respectively placed in the two precast slabs 3, then the two precast slabs 3 are laid, and then the reinforcement cages are welded through the abdicating grooves 6; a reinforcing plate is arranged at the top of one end of the two precast slabs 3 close to each other, and the reinforcing plate is fixed on the two precast slabs 3 through bolts;
k. pouring concrete: after the precast slabs 3 are laid, pouring concrete into the cavities of the precast slabs 3, pouring the concrete into the abdicating grooves 6 of the two precast slabs 3 in the middle, and curing the concrete after pouring is finished;
dismantling a tower crane: after concrete curing is finished, dismantling the tower crane and the steel strand;
m, installing embedded parts: laying steel bars in the steel bar burying grooves 5 of the prefabricated plates 3, wherein the same steel bar penetrates through the steel bar burying grooves 5 communicated with all the prefabricated plates 3, and the steel bar penetrates through the bottom of the reinforcing plate; an embedded part is arranged on the precast slab 3, and a plurality of vertically arranged connecting bolts for connecting pipeline supporting pieces are fixed on the embedded part;
n, paving concrete: pouring concrete on the top of the precast slab 3, curing the concrete after pouring, and exposing the top of the connecting bolt outside the concrete after pouring the concrete;
o. installing the pipe support: connecting the pipeline supporting member to the top of the prefabricated slab 3 through a connecting bolt;
p, laying a pipeline: the pipeline is erected, the pipeline is firstly erected on the pipeline supporting pieces and the joints of the pipeline are aligned when the pipeline is erected, and then the joints of the pipeline are connected and sealed.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. A method of laying a pipeline, comprising: the method comprises the following steps:
a. and (3) field investigation: before construction, performing site investigation, and determining the position of excavation of a foundation pit, the size of the foundation pipe (1) and the specific size of the precast slab (3);
b. excavating a foundation pit: excavating foundation pits at the investigation positions on two sides of the river channel to reach a specified depth;
c. prefabricating a ground pipe (1) and a prefabricated plate (3): prefabricating and molding a ground base pipe (1) and a plurality of prefabricated plates (3), wherein the prefabricated plates (3) are arranged in a cuboid shape, a cavity is reserved in the prefabricated plates (3), the cavity penetrates through the prefabricated plates (3) along the length direction of the prefabricated plates (3), and hoisting rings (4) are pre-embedded at four corners of the tops of the prefabricated plates (3); the prefabricated floor tube is characterized in that the foundation tube (1) is arranged in a tubular shape, four hoisting rings (4) which are uniformly distributed around the axis of the foundation tube (1) are embedded in the top of the foundation tube (1), one sides of the two foundation tubes (1) which are close to each other are integrally formed with connecting plates (2) which are completely the same as the prefabricated plates (3) in shape and size, the connecting plates (2) are horizontally arranged, and cavities in the connecting plates (2) are communicated with cavities in the foundation tube (1); reinforcing steel bars are pre-embedded in the precast slabs (3), the connecting plates (2) and the foundation pipes (1) during prefabrication;
d. and (3) maintaining the prefabricated part: maintaining each prefabricated member, wherein a gunny bag sheet is covered on the surface of each prefabricated member during maintenance, so that the gunny bag sheet is kept in a wet state, and the maintenance time is not less than 14 days;
e. weaving a reinforcement cage: the steel reinforcement cage is woven by using steel reinforcements, the shape and the size of the woven steel reinforcement cage are ensured to be the same as those of a cavity in the precast slab (3) when the steel reinforcement cage is woven, and the quantity of the woven steel reinforcement cage is equal to the quantity of the precast slab (3) plus the quantity of the connecting plates (2);
f. hoisting the foundation pipe (1): hoisting the two-site base pipe (1) into a foundation pit, enabling the bottom of the two-site base pipe (1) to be in contact with the bottom of the foundation pit, enabling the bottom of the connecting plate (2) to be in contact with the ground, enabling the two connecting plates (2) on the two-site base pipe (1) to be located on the sides, close to each other, of the two-site base pipe (1), enabling the length directions of the two connecting plates (2) to be the same, and enabling the two side edges of the two connecting plates (2) to be;
g. placing a foundation cage: hoisting a foundation cage woven by reinforcing steel bars in the middle of a foundation pipe (1), wherein the foundation cage is barrel-shaped, a horizontally arranged mounting plate is fixed at the top of the foundation cage, after the foundation cage is hoisted in the foundation pipe (1), the top of the mounting plate is ensured to be parallel and level with the top of a connecting plate (2), then the woven reinforcement cage is placed in the middle of the connecting plate (2), and the reinforcement cage in the connecting plate (2) is welded with the foundation cage;
h. pouring a foundation: the top of the poured concrete is flush with the top of the connecting plate (2), and the concrete is cured after the pouring is finished;
i. installing a tower crane: after the concrete poured into the foundation is cured, respectively installing a tower crane on the two installation plates, and when the tower crane is installed; the tower arms of the two tower cranes extend towards the direction of mutual approach, and the ends of the two tower arms close to each other are fixedly connected together;
j. paving a precast slab (3): the prefabricated slab (3) is laid from the two connecting plates (2) towards the direction close to each other, when the prefabricated slab (3) is laid, a reinforcement cage is placed in a cavity of the connecting plates (2), then the reinforcement cage placed in the prefabricated slab (3) to be hoisted is welded on the reinforcement cage in the connecting plates (2), then steel strands are connected to four hoisting rings (4) at the top of the prefabricated slab (3), the other end of each steel strand is fixedly connected to a tower arm at the top of the prefabricated slab (3), and then the prefabricated slab (3) is sleeved on the reinforcement cage; then welding the reinforcement cage placed in the next prefabricated plate (3), and then welding the reinforcement of the next prefabricated plate (3); when the prefabricated plates (3) are folded at the middle position of the bridge, the abdicating grooves (6) are reserved on two sides of the tops of the two folded prefabricated plates (3), the abdicating grooves (6) are communicated with the cavity, when the prefabricated plates are folded, the two reinforcement cages are respectively placed in the two prefabricated plates (3), then the two prefabricated plates (3) are laid, and then the reinforcement cages are welded after penetrating through the abdicating grooves (6); a reinforcing plate is arranged at the top of one end of the two precast slabs (3) close to each other, and the reinforcing plate is fixed on the two precast slabs (3) through bolts;
k. pouring concrete: after the precast slabs (3) are laid, pouring concrete into the cavities of the precast slabs (3), pouring concrete into the abdicating grooves (6) of the two precast slabs (3) in the middle, and curing the concrete after pouring is finished;
dismantling a tower crane: after concrete curing is finished, dismantling the tower crane and the steel strand;
m, installing embedded parts: an embedded part is arranged on the precast slab (3), and a plurality of vertically arranged connecting bolts for connecting pipeline supporting parts are fixed on the embedded part;
n, paving concrete: pouring concrete on the top of the precast slab (3), curing the concrete after pouring, and exposing the top of the connecting bolt outside the concrete after pouring the concrete;
o. installing the pipe support: connecting the pipeline supporting piece to the top of the precast slab (3) through a connecting bolt;
p, laying a pipeline: and erecting the pipeline.
2. The pipe laying method according to claim 1, wherein: in the step c, a plurality of steel bar embedding grooves (5) are reserved at the top of the precast slab (3), and the steel bar embedding grooves (5) penetrate through the precast slab (3) along the length direction of the precast slab (3); and in the step m, before the embedded parts are installed, laying steel bars in a steel bar burying groove (5) of the precast slab (3).
3. The pipe laying method according to claim 2, wherein: and in the step m, the same steel bar penetrates through the steel bar burying grooves (5) communicated with all the prefabricated plates (3).
4. The pipe laying method according to claim 1, wherein: and in the step i, connecting the tower crane and the mounting plate together by using a high-strength bolt.
5. The pipe laying method according to claim 4, wherein: in the step i, a plurality of steel strands are fixed on one sides of the two tower cranes, which deviate from each other, and the other ends of the steel strands are fixedly connected to the ground.
6. The pipe laying method according to claim 1, wherein: in the step h, the cavity of the connecting plate (2) is sealed at one side of the connecting plate (2) close to the ground base pipe (1), and then concrete is poured into the ground base pipe (1).
7. The pipe laying method according to claim 1, wherein: in the step p, when erecting, the pipeline is firstly erected on the plurality of pipeline supporting pieces, the joints of the pipeline are aligned, and then the joints of the pipeline are connected and sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331486.6A CN111005320B (en) | 2019-12-21 | 2019-12-21 | Pipeline laying method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331486.6A CN111005320B (en) | 2019-12-21 | 2019-12-21 | Pipeline laying method |
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| Publication Number | Publication Date |
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| CN111005320A CN111005320A (en) | 2020-04-14 |
| CN111005320B true CN111005320B (en) | 2021-04-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008274567A (en) * | 2007-04-25 | 2008-11-13 | Kouchi Marutaka:Kk | Circular steel pipe prefabricated bridge and its construction method |
| CN201610978U (en) * | 2009-12-28 | 2010-10-20 | 贵阳铝镁设计研究院 | Pipe rack convenient for installing and repairing multilayer pipeline |
| CN203729322U (en) * | 2014-01-28 | 2014-07-23 | 山东中宏路桥建设有限公司 | Precast concrete pipeline foundation |
| CN103866694B (en) * | 2014-03-18 | 2016-04-27 | 中铁二十二局集团第一工程有限公司 | Deep water silty sand ground geology large span multi-line hardened system and jacking culvert construction method |
| JP6573479B2 (en) * | 2015-05-20 | 2019-09-11 | 株式会社技研製作所 | Construction method of elevated structure |
| CN209084167U (en) * | 2018-11-16 | 2019-07-09 | 四川港航建设工程有限公司 | Cross a river segment pipe aerial construction |
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