CN113669502A - Buried pipeline emergency reinforcing device and construction method thereof - Google Patents
Buried pipeline emergency reinforcing device and construction method thereof Download PDFInfo
- Publication number
- CN113669502A CN113669502A CN202110782003.5A CN202110782003A CN113669502A CN 113669502 A CN113669502 A CN 113669502A CN 202110782003 A CN202110782003 A CN 202110782003A CN 113669502 A CN113669502 A CN 113669502A
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- Prior art keywords
- buried pipeline
- buried
- sides
- steel strand
- cross beam
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000002689 soil Substances 0.000 claims abstract description 25
- 239000011435 rock Substances 0.000 claims abstract description 9
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 10
- 238000003466 welding Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 238000009424 underpinning Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an emergency reinforcing device for a buried pipeline and a construction method, wherein the emergency reinforcing device is positioned below the ground surface and comprises miniature piles which are respectively arranged at two sides of the buried pipeline, a pair of longitudinal connecting beams which are respectively arranged at two sides above the buried pipeline, a cross beam and a steel strand, wherein two ends of the cross beam are connected to the connecting beams, the lower end of each miniature pile extends into a rock bearing layer, the connecting beams are positioned above the miniature piles and connected with the upper ends of the miniature piles, one end of each steel strand is connected with the cross beam, and the other end of each steel strand extends along the lower pipe wall of the buried pipeline and is upwards fixed on the cross beam to bear the buried pipeline. The invention can optimize the stress structure of the reinforced buried pipeline and has good reinforcing effect. The invention has the advantages of simple structure, flexible arrangement, high construction speed, small disturbance to soil body and strong adaptability of construction site, and can be widely applied to emergency rescue engineering of the buried pipeline.
Description
Technical Field
The invention relates to a buried pipeline emergency reinforcing device and a construction method thereof.
Background
The buried pipeline is used as a common conveying system, is widely applied to the fields of water conservancy, petroleum, natural gas, chemical industry and the like, and plays a vital role in maintaining the development of modern urban functions and regional economy. Because the buried pipeline usually functions in a network system mode, has wide distribution regions and needs to pass through fields with different geological conditions, when the field conditions, peripheral loads and other factors change, the change of the stress state of the buried pipeline can cause structural damage to the buried pipeline, and the subsequent use function is influenced. Therefore, how to carry out emergency reinforcement and ensure the use safety of the buried pipeline when the buried pipeline is about to have structural damage is one of the important problems to be solved urgently in the industry.
At present, the traditional pipeline reinforcing method mainly comprises welding and using a clamp, and the two reinforcing methods resist the influence of stress condition transformation caused by field condition change to a certain extent by reinforcing the performance of the structure of the two reinforcing methods, but the two reinforcing methods have the following defects:
(1) when the welding method is used for welding and reinforcing the pipelines which must be in service, the possibility of welding through the pipelines is high, and the danger of cold brittleness can also occur when the welding environment has high humidity or the environment temperature is too low.
(2) When the pipeline is reinforced by the clamp, the required construction equipment and the used construction process are complex, so that the construction cost is high.
(3) The two reinforcement methods of welding and using the clamp are used for reinforcing the buried pipeline, so that a long construction period is required, and the construction period requirement of the buried pipeline reinforcing emergency engineering cannot be met under many conditions.
Disclosure of Invention
The first purpose of the invention is to provide an emergency reinforcing device for buried pipelines, which has the advantages of simple structure, low cost, high construction efficiency and good reinforcing effect and can ensure that the buried pipelines can normally work in construction.
The first object of the invention is achieved by the following technical measures: the utility model provides a buried pipeline reinforcing apparatus that speedily carries out rescue work, its characterized in that, it is located the earth's surface below and its include the branch locate buried pipeline both sides miniature stake, divide locate a pair of fore-and-aft even roof beam, both ends of buried pipeline top both sides and connect crossbeam and steel strand wires on this pair of even roof beam, the lower extreme of miniature stake stretches into in the rock bearing layer, even the roof beam is located the top of miniature stake is connected rather than the upper end, the one end and the crossbeam of steel strand wires are connected, and the other end extends and upwards fixes on the crossbeam with bearing buried pipeline along buried pipeline's lower pipe wall.
The steel strand is used for underpinning the buried pipeline, the steel strand transmits force to the cross beam, the cross beam transmits the force to the miniature pile and finally transmits the force to the rock bearing layer, so that the buried pipeline underpinning device becomes an integral common stress structure, the stress structure of the buried pipeline after being reinforced can be optimized, and the reinforcing effect is good. The invention has little influence on the structure of the buried pipeline when reinforcing construction is carried out, thus the normal use function of the buried pipeline can be ensured in the construction process.
In order to reduce the friction between the steel strand and the buried pipeline, the wire segment of the steel strand extending on the lower pipe wall of the buried pipeline is wrapped in a sleeve made of elastic material, preferably, the sleeve made of elastic material is a rubber hose.
In order to improve the lateral stress capability of the micro pile and further enhance the anti-overturning capability of the soil body after excavation, the emergency reinforcing device for the buried pipeline comprises prestressed anchor cables which are respectively arranged on two sides of the buried pipeline, wherein the prestressed anchor cables are obliquely arranged, the upper ends of the prestressed anchor cables are fixed on the connecting beam, and the lower ends of the prestressed anchor cables are anchored in the soil body.
The included angle alpha between the steel strand and the cross beam is as follows: alpha is more than or equal to 80 degrees and less than or equal to 90 degrees.
The pile tops of the miniature piles positioned at two sides of the buried pipeline are at the same elevation.
The steel strand is anchored on the cross beam through an anchorage device.
The invention lays the concrete road surface above the connecting beam and the cross beam, and restores the normal use function of the original road surface.
The second purpose of the invention is to provide a construction method of the buried pipeline emergency reinforcing device.
The second object of the invention is achieved by the following technical measures: a construction method of the buried pipeline emergency reinforcing device is characterized by comprising the following steps:
s1, determining the piling positions of the miniature piles on the two sides of the buried pipeline;
s2, driving the micro piles into the soil body at the piling position, enabling the lower ends of the micro piles to enter a rock bearing layer, and enabling the tops of the micro piles on the two sides of the buried pipeline to be at a uniform elevation;
s3, fixing a longitudinal connecting beam on the pile top of each micro pile at each side, and connecting a cross beam between two connecting beams on the pile tops of the micro piles at two sides;
s4, arranging oblique pre-stressed anchor cables on two sides of the buried pipeline, wherein the upper ends of the pre-stressed anchor cables are connected to the connecting beam, and the lower ends of the pre-stressed anchor cables are anchored in a soil body;
s5, symmetrically excavating soil bodies on two sides of the buried pipeline to a designed elevation;
s6, using a steel strand to downwards bypass the lower pipe wall of the buried pipeline, and fixing two ends of the steel strand on a cross beam;
and S7, backfilling plain concrete and backfilled soil in sequence, and paving a concrete pavement above the backfilled elevation.
The designed elevation is 105-110 mm below the bottom of the buried pipeline; the top surface of the cross beam is flush with the top surface of the connecting beam.
The plain concrete is backfilled once, the backfilling elevation reaches the top end of the sleeve, the backfilled soil is backfilled layer by layer, and the backfilling elevation reaches the top surfaces of the cross beam and the connecting beam.
Compared with the prior art, the invention has the following remarkable advantages:
(1) the steel strand is used for underpinning the buried pipeline, the steel strand transmits force to the cross beam, the cross beam transmits the force to the miniature pile and finally transmits the force to the rock bearing layer, so that the buried pipeline underpinning device becomes an integral common stress structure, the stress structure of the buried pipeline after being reinforced can be optimized, and the reinforcing effect is good.
(2) When the invention is used for reinforcement construction, the structure of the buried pipeline is minimally influenced, so that the normal use function of the buried pipeline can be ensured in the construction process.
(3) The invention has simple structure, flexible arrangement, high construction speed, small disturbance to soil mass and strong adaptability to construction site, and can be widely applied to emergency rescue engineering of buried pipelines.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an emergency reinforcing device for buried pipelines of the invention;
FIG. 2 is a flow chart of the construction method of the present invention;
FIG. 3 is a second flow chart of the construction method of the present invention;
FIG. 4 is a third flow chart of the construction method of the present invention;
FIG. 5 is a fourth flowchart of the construction method of the present invention;
FIG. 6 is a fifth flowchart of the construction method of the present invention;
FIG. 7 is a sixth flowchart of the construction method of the present invention.
Detailed Description
As shown in fig. 1, the emergency reinforcing device for buried pipeline of the present invention is located below ground surface 1 and comprises micro piles 3 respectively arranged at two sides of buried pipeline 2, a pair of longitudinal coupling beams 4 respectively arranged at two sides above buried pipeline 1, a cross beam 5 with two ends connected to the coupling beams 4, steel strands 6 and prestressed anchor cables 7, wherein the cross beam 5 is a concrete beam, the pile tops of the micro piles 3 at two sides of buried pipeline 2 are at a uniform elevation, the lower ends of the micro piles 3 extend into a rock bearing layer, the coupling beams 4 are located above the micro piles 3 and connected with the upper ends thereof, the top surface of the cross beam 5 is flush with the top surface of the coupling beams 4, one ends of the steel strands 6 are connected with the cross beam 5 through anchors 9, the other ends extend along the lower pipe wall of buried pipeline 1 and are fixed on the cross beam 5 through anchors 9 to bear the buried pipeline 2, wherein the line segment of the steel strands 6 extending on the lower pipe wall of the buried pipeline 2 is wrapped in a sleeve made of elastic material, in this embodiment, the sleeve is a rubber hose 8. The prestressed anchor cables 7 are respectively arranged at two sides of the buried pipeline 2, the prestressed anchor cables 7 are obliquely arranged, the upper ends of the prestressed anchor cables 7 are fixed on the connecting beam 4, and the lower ends of the prestressed anchor cables 7 are anchored in the soil body. A concrete slab 12 is laid over the coupling beams 4 and the cross beams 5.
The types, sizes and using number of the steel strands, the rubber hoses, the anchorage devices, the cross beams, the connecting beams, the prestressed anchor cables and the micro piles used in the invention and the strength grade of the used concrete can be changed according to the actual requirements of different projects.
As shown in fig. 2 to 7, the construction method of the buried pipeline emergency reinforcing device specifically comprises the following steps:
s1, a concrete position of the buried pipeline 2 needing to be reinforced is ascertained by adopting an open cut method, and piling positions of the miniature piles 3 positioned at two sides of the buried pipeline 2 are determined, so that the buried pipeline 2 is prevented from being damaged during construction, which is shown in figure 2;
s2, driving the micro piles 3 into a soil body at a piling position, enabling the lower ends of the micro piles 3 to enter a rock bearing stratum, and enabling pile tops of the micro piles 3 on two sides of the buried pipeline 2 to be at a uniform elevation, wherein the reference is shown in figure 2;
s3, fixing a longitudinal connecting beam 4 on the pile top of each micro pile 3 at each side, and connecting a cross beam 5 between two connecting beams 4 on the pile tops of the micro piles 3 at two sides, so that the micro piles 3 at two sides are integrally stressed, and the stress stability of a subsequent emergency reinforcement device is ensured, referring to fig. 3, and constructing a reserved hole channel 13 on the cross beam 5;
s4, in order to improve the lateral stress capability of the micro piles 3 on two sides, oblique pre-stressed anchor cables 7 are arranged on two sides of the buried pipeline 2, the upper ends of the pre-stressed anchor cables 7 are connected to the connecting beam 4, the lower ends of the pre-stressed anchor cables are anchored in the soil body, and the anti-overturning capability of the soil body after excavation is further enhanced, which is shown in a figure 4;
s5, manually and symmetrically excavating soil bodies on two sides of the buried pipeline 2 to a design elevation, wherein the design elevation preferably takes a value of 105-110 mm below the pipe bottom of the buried pipeline 2, and the value is shown in figure 5;
s6, when the excavation is about to reach the design elevation, the steel strand 6 is used to bypass the lower pipe wall of the buried pipeline 2 downwards, and penetrates through the pore channel 13, the two ends of the steel strand 6 are anchored on the cross beam 5 by using the anchorage device 9, and the included angle alpha between the steel strand 6 and the cross beam 5 is as follows: alpha is more than or equal to 80 degrees and less than or equal to 90 degrees, and meanwhile, in order to reduce the friction between the steel strand 6 and the buried pipeline 2, a line segment (namely the part of the steel strand 6 contacted with the buried pipeline 2) extending on the lower pipe wall of the buried pipeline 2 by the steel strand 6 is wrapped in a rubber hose 8, which is shown in figure 5;
s7, in order to prevent soil body loss at the bottom of the buried pipeline 2, sequentially backfilling plain concrete 10 and backfill soil 11, wherein the backfill soil 11 preferably adopts cohesive soil with water content meeting compaction requirements, the plain concrete 9 adopts one-time backfilling, the backfilling elevation reaches the top end of the rubber hose 8, the backfill soil 10 adopts layered backfilling, and the backfilling elevation reaches the top surfaces of the cross beam 5 and the connecting beam 4, and the reference is shown in figure 6; and then a layer of concrete pavement 12 with the thickness of 200mm is paved above the backfill elevation, and the normal use function of the original pavement is restored with reference to fig. 7.
The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or changed in other various forms without departing from the basic technical idea of the present invention.
Claims (10)
1. The utility model provides a buried pipeline reinforcing apparatus that speedily carries out rescue work which characterized in that: it is located below the earth's surface and its including divide locate the miniature stake of buried pipeline both sides, divide locate a pair of fore-and-aft even roof beam, both ends of buried pipeline top both sides and connect crossbeam and steel strand wires on this pair of even roof beam, the lower extreme of miniature stake stretches into in the rock bearing layer, even the roof beam is located the top of miniature stake is connected rather than the upper end, the one end and the crossbeam of steel strand wires are connected, and the other end extends and upwards fixes on the crossbeam with the bearing buried pipeline along buried pipeline's lower pipe wall.
2. An emergency reinforcing apparatus for buried pipelines according to claim 1, characterized in that: and the wire section of the steel strand extending on the lower pipe wall of the buried pipeline is wrapped in the sleeve made of the elastic material.
3. An emergency reinforcing apparatus for buried pipelines according to claim 2, characterized in that: the buried pipeline emergency reinforcing device comprises prestressed anchor cables which are respectively arranged on two sides of the buried pipeline, the prestressed anchor cables are obliquely arranged, the upper ends of the prestressed anchor cables are fixed on the connecting beam, and the lower ends of the prestressed anchor cables are anchored in a soil body.
4. An emergency reinforcing apparatus for buried pipelines according to claim 3, characterized in that: the included angle alpha between the steel strand and the cross beam is as follows: alpha is more than or equal to 80 degrees and less than or equal to 90 degrees.
5. An emergency reinforcing apparatus for buried pipelines according to claim 4, characterized in that: the pile tops of the miniature piles at the two sides of the buried pipeline are at the same elevation.
6. An emergency reinforcing apparatus for buried pipelines according to claim 5, characterized in that: the steel strand is anchored on the cross beam through an anchorage device.
7. An emergency reinforcing apparatus for buried pipelines according to claim 6, characterized in that: and laying a concrete pavement above the connecting beams and the cross beams.
8. A construction method of the buried pipeline emergency reinforcing device of any one of claims 1 to 7 is characterized by comprising the following steps:
s1, determining the piling positions of the miniature piles on the two sides of the buried pipeline;
s2, driving the micro piles into the soil body at the piling position, enabling the lower ends of the micro piles to enter a rock bearing layer, and enabling pile tops of the micro piles on two sides of the buried pipeline to be at a uniform elevation;
s3, fixing a longitudinal connecting beam on the pile top of each micro pile at each side, and connecting a cross beam between two connecting beams on the pile tops of the micro piles at two sides;
s4, arranging oblique pre-stressed anchor cables on two sides of the buried pipeline, wherein the upper ends of the pre-stressed anchor cables are connected to the connecting beam, and the lower ends of the pre-stressed anchor cables are anchored in a soil body;
s5, symmetrically excavating soil bodies on two sides of the buried pipeline to a designed elevation;
s6, using a steel strand to downwards bypass the lower pipe wall of the buried pipeline, and fixing two ends of the steel strand on a cross beam;
and S7, backfilling plain concrete and backfilled soil in sequence, and paving a concrete pavement above the backfilled elevation.
9. The construction method according to claim 8, wherein: the designed elevation is 105-110 mm below the bottom of the buried pipeline; the top surface of the cross beam is flush with the top surface of the connecting beam.
10. The construction method according to claim 9, wherein: the plain concrete is backfilled once, the backfilling elevation reaches the top end of the sleeve, the backfilled soil is backfilled layer by layer, and the backfilling elevation reaches the top surfaces of the cross beam and the connecting beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110782003.5A CN113669502B (en) | 2021-07-09 | 2021-07-09 | Buried pipeline emergency reinforcing device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110782003.5A CN113669502B (en) | 2021-07-09 | 2021-07-09 | Buried pipeline emergency reinforcing device and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113669502A true CN113669502A (en) | 2021-11-19 |
| CN113669502B CN113669502B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110782003.5A Active CN113669502B (en) | 2021-07-09 | 2021-07-09 | Buried pipeline emergency reinforcing device and construction method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002070471A (en) * | 2000-09-01 | 2002-03-08 | Toyo Constr Co Ltd | Construction method for enlarging cross section of existing tunnel |
| CN102767194A (en) * | 2012-07-13 | 2012-11-07 | 河海大学 | Construction method for treating operating metro tunnel settlement by using anchor cable method |
| CN106245655A (en) * | 2016-07-26 | 2016-12-21 | 中交第航务工程局有限公司 | Utilize the deep foundation pit supporting construction method of miniature steel pipe pile |
| CN110307004A (en) * | 2019-06-20 | 2019-10-08 | 浙江大学城市学院 | Grand heavy ruggedized construction and construction method are prevented in a kind of tunnel using steel strand tension |
| CN210266160U (en) * | 2019-06-24 | 2020-04-07 | 中国路桥工程有限责任公司 | Construction device for shield to pass through underground pipeline |
| CN112324990A (en) * | 2020-10-29 | 2021-02-05 | 中国三冶集团有限公司 | Method and structure for reinforcing underground straight buried pipe |
-
2021
- 2021-07-09 CN CN202110782003.5A patent/CN113669502B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002070471A (en) * | 2000-09-01 | 2002-03-08 | Toyo Constr Co Ltd | Construction method for enlarging cross section of existing tunnel |
| CN102767194A (en) * | 2012-07-13 | 2012-11-07 | 河海大学 | Construction method for treating operating metro tunnel settlement by using anchor cable method |
| CN106245655A (en) * | 2016-07-26 | 2016-12-21 | 中交第航务工程局有限公司 | Utilize the deep foundation pit supporting construction method of miniature steel pipe pile |
| CN110307004A (en) * | 2019-06-20 | 2019-10-08 | 浙江大学城市学院 | Grand heavy ruggedized construction and construction method are prevented in a kind of tunnel using steel strand tension |
| CN210266160U (en) * | 2019-06-24 | 2020-04-07 | 中国路桥工程有限责任公司 | Construction device for shield to pass through underground pipeline |
| CN112324990A (en) * | 2020-10-29 | 2021-02-05 | 中国三冶集团有限公司 | Method and structure for reinforcing underground straight buried pipe |
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| Publication number | Publication date |
|---|---|
| CN113669502B (en) | 2023-11-21 |
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