CN113669502B - Buried pipeline emergency reinforcing device and construction method thereof - Google Patents
Buried pipeline emergency reinforcing device and construction method thereof Download PDFInfo
- Publication number
- CN113669502B CN113669502B CN202110782003.5A CN202110782003A CN113669502B CN 113669502 B CN113669502 B CN 113669502B CN 202110782003 A CN202110782003 A CN 202110782003A CN 113669502 B CN113669502 B CN 113669502B
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- buried pipeline
- cross beam
- sides
- micro
- pile
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Classifications
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses an emergency strengthening device for a buried pipeline and a construction method thereof, wherein the emergency strengthening device is positioned below the ground surface and comprises micro 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 steel strands, wherein two ends of the cross beam are connected to the pair of connecting beams, the lower ends of the micro piles extend into a rock bearing layer, the connecting beams are positioned above the micro piles and are connected with the upper ends of the micro piles, one ends of the steel strands are connected with the cross beam, and the other ends of the steel strands extend along the lower pipe wall of the buried pipeline and are upwards fixed on the cross beam to support the buried pipeline. The invention can optimize the stress structure of the buried pipeline after reinforcement, and has good reinforcement effect. The invention has little influence on the structure of the buried pipeline when in reinforcement construction, can ensure the normal use function of the buried pipeline in the construction process, has simple structure, flexible arrangement, high construction speed, small disturbance to soil body and strong adaptability to construction sites, 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
Buried pipelines are used as a common conveying system and widely applied to the fields of water conservancy, petroleum, natural gas, chemical industry and the like, and play a vital role in maintaining the development of modern urban functions and regional economy. Because the buried pipeline generally plays a role in a network system, has wide distribution region and needs to pass through sites with different geological conditions, when the conditions of the sites, peripheral loads and other factors are changed, the stress state of the buried pipeline is changed, so that the buried pipeline can be structurally damaged, and the subsequent use function is affected. Therefore, how to perform emergency reinforcement and ensure the use safety of buried pipelines when the buried pipelines are about to be structurally damaged is one of the important problems to be solved in the industry.
At present, the traditional pipeline reinforcement method mainly comprises welding and using clamps, and the two reinforcement methods are used for resisting the influence of the change of the field condition to a certain extent by strengthening the performance of the self structure, so that the stress condition is changed, however, the two methods have the following defects:
(1) When the welding method is used for welding and reinforcing a pipeline which is required to be in service, the pipeline is more likely to be penetrated by welding, and the risk of cold and brittle can occur when the welding environment is high in humidity or the temperature of the environment is too low.
(2) When the clamp is used for reinforcing the pipeline, the required construction equipment and the used construction process are complex, so that the construction cost is high.
(3) The two reinforcement methods, namely welding and clamping, require a longer construction period when the buried pipeline is reinforced, and in many cases, the construction period requirement of the buried pipeline reinforcement emergency engineering cannot be met.
Disclosure of Invention
The first aim of the invention is to provide the buried pipeline emergency strengthening device which has simple structure, low cost, high construction efficiency and good strengthening effect and can ensure that the buried pipeline can normally work in construction.
The first object of the present invention is achieved by the following technical measures: the utility model provides a reinforcement device is speedily carried out rescue work to buried pipeline, its characterized in that lies in the subsurface and its include divide locate the miniature stake of buried pipeline both sides, divide locate the longitudinal even roof beam of a pair of longitudinal that is located the buried pipeline top both sides, both ends connect crossbeam and the steel strand wires on this even roof beam, the lower extreme of miniature stake stretches into in the rock bearing layer, even roof beam is located miniature stake top and be connected with its 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 along buried pipeline's lower pipe wall in order to support buried pipeline.
The invention uses the steel strand to underpin the buried pipeline, the steel strand transmits force to the cross beam, and the cross beam transmits force to the micro pile and finally transmits force to the rock bearing layer, so that the invention becomes an integral common stress structure, the stress structure of the buried pipeline after reinforcement can be optimized, and the reinforcement effect is good. The invention has little influence on the structure of the buried pipeline when in reinforcement construction, thus ensuring the normal use function of the buried pipeline in the construction process.
In order to reduce friction between the steel strand and the buried pipeline, the line segment of the steel strand extending on the lower pipe wall of the buried pipeline is wrapped in a sleeve made of elastic material, and 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 strengthen the anti-capsizing capability of the excavated soil body, the buried pipeline emergency reinforcing device comprises prestressed anchor cables which are respectively arranged at 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 on two sides of the buried pipeline are uniform elevation.
The steel strand is anchored on the beam through an anchor.
According to the invention, the concrete pavement is laid above the connecting beam and the cross beam, and the normal use function of the original pavement is recovered.
The second object of the invention is to provide a construction method of the buried pipeline emergency reinforcing device.
The second object of the present invention is achieved by the following technical measures: the construction method of the buried pipeline emergency strengthening device is characterized by comprising the following steps of:
s1, determining piling positions of micro piles on two sides of a buried pipeline;
s2, driving the micro pile into soil at a pile driving position, wherein the lower end of the micro pile enters a rock bearing layer, and the tops of the micro piles on two sides of a buried pipeline are uniform elevation;
s3, fixing a longitudinal connecting beam on the pile tops of the micro piles on each side, and connecting a cross beam between the two connecting beams on the pile tops of the micro piles on the two sides;
s4, oblique pre-stress anchor cables are arranged on two sides of the buried pipeline, the upper ends of the pre-stress anchor cables are connected to the connecting beams, and the lower ends of the pre-stress anchor cables are anchored in soil;
s5, symmetrically excavating soil bodies on two sides of the buried pipeline to the designed elevation;
s6, using the steel strand to downwards bypass the lower pipe wall of the buried pipeline, and fixing two ends of the steel strand on the cross beam;
s7, backfilling plain concrete and backfill soil in sequence, and paving a concrete pavement above the backfill elevation.
The design elevation of the invention is 105-110 mm below the pipe bottom of the buried pipeline; the top surface of crossbeam and the top surface parallel and level of continuous beam.
The plain concrete is backfilled once, the backfill elevation reaches the top end of the sleeve, the backfill soil is layered backfill, and the backfill 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 invention uses the steel strand to underpin the buried pipeline, the steel strand transmits force to the cross beam, and the cross beam transmits force to the micro pile and finally transmits force to the rock bearing layer, so that the invention becomes an integral common stress structure, the stress structure of the buried pipeline after reinforcement can be optimized, and the reinforcement effect is good.
(2) The invention has little influence on the structure of the buried pipeline when in reinforcement construction, thus ensuring the normal use function of the buried pipeline in the construction process.
(3) The invention has simple structure, flexible arrangement, high construction speed, small disturbance to soil body and strong adaptability to construction sites, 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 view of the buried pipeline emergency reinforcing apparatus of the present invention;
FIG. 2 is one of the flowcharts 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 flow chart of the construction method of the present invention;
FIG. 6 is a fifth flow chart 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 strengthening device for the buried pipeline is positioned below the ground surface 1 and comprises micro piles 3 which are respectively arranged at two sides of the buried pipeline 2, a pair of longitudinal connecting beams 4 which are respectively arranged at two sides above the buried pipeline 1, a cross beam 5 with two ends connected to the connecting beams 4, steel strands 6 and prestressed anchor cables 7, wherein the cross beam 5 is a concrete beam, pile tops of the micro piles 3 which are positioned at two sides of the buried pipeline 2 are uniform elevation, the lower ends of the micro piles 3 extend into a rock bearing layer, the connecting beams 4 are positioned above the micro piles 3 and are connected with the upper ends of the micro piles, the top surfaces of the cross beam 5 are level with the top surfaces of the connecting beams 4, one ends of the steel strands 6 are connected with the cross beam 5 through anchors 9, and the other ends of the steel strands extend along the lower pipe wall of the buried pipeline 1 and are fixed on the cross beam 5 through the anchors 9 to support the buried pipeline 2, and in this embodiment, the line segments extending on the lower pipe wall of the buried pipeline 2 are wrapped in a sleeve made of elastic material, and the sleeve is made of a rubber hose 8. The pre-stress anchor cables 7 are respectively arranged at two sides of the buried pipeline 2, the pre-stress anchor cables 7 are obliquely arranged, the upper ends of the pre-stress anchor cables 7 are fixed on the connecting beam 4, and the lower ends of the pre-stress anchor cables are anchored in soil. A concrete pavement 12 is laid over the connecting beam 4 and the cross beam 5.
The types, sizes and the number of the steel strands, the rubber hoses, the anchors, the cross beams, the connecting beams, the prestressed anchor cables and the micro piles used in the invention and the strength grade of the concrete used 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, ascertaining the specific position of the buried pipeline 2 to be reinforced by adopting an open cut method, and determining the piling positions of the micro piles 3 positioned at the two sides of the buried pipeline 2 to prevent damage to the buried pipeline 2 during construction, wherein the figure 2 is shown;
s2, driving the micro pile 3 into soil at a pile driving position, wherein the lower end of the micro pile 3 enters a rock bearing layer, and pile tops of the micro piles 3 on two sides of the buried pipeline 2 are uniform elevation, as shown in FIG 2;
s3, fixing a longitudinal connecting beam 4 on the pile tops of the micro piles 3 on each side, and connecting a cross beam 5 between the two connecting beams 4 on the pile tops of the micro piles 3 on the two sides, so that the micro piles 3 on the two sides form integral stress, the stress stability of a subsequent emergency reinforcing device is ensured, and a reserved pore channel 13 is constructed on the cross beam 5, as shown in FIG 3;
s4, in order to improve the lateral stress capacity of the micro piles 3 on the two sides, oblique pre-stress anchor cables 7 are arranged on the two sides of the buried pipeline 2, the upper ends of the pre-stress anchor cables 7 are connected to the connecting beams 4, the lower ends of the pre-stress anchor cables are anchored in soil, and the anti-overturning capacity of the excavated soil is further enhanced, as shown in FIG 4;
s5, manually and symmetrically excavating soil bodies on two sides of the buried pipeline 2 to design elevation, wherein the design elevation is preferably 105-110 mm below the bottom of the buried pipeline 2, and is shown in FIG. 5;
s6, when the excavation is about to reach the designed elevation, the steel strand 6 is used for downwards bypassing the lower pipe wall of the buried pipeline 2, two ends of the steel strand 6 are anchored on the cross beam 5 through the pore canal 13 by utilizing the anchorage 9, and an included angle alpha between the steel strand 6 and the cross beam 5 is as follows: the angle alpha is larger than or equal to 80 degrees and smaller than or equal to 90 degrees, and meanwhile, in order to reduce friction between the steel stranded wires 6 and the buried pipeline 2, line segments (namely, the contact parts of the steel stranded wires 6 and the buried pipeline 2) extending on the lower pipe wall of the buried pipeline 2 are wrapped in the rubber hose 8 by the steel stranded wires 6, see FIG. 5;
s7, in order to prevent soil loss at the bottom of the buried pipeline 2, backfilling plain concrete 10 and backfill soil 11 in sequence, wherein the backfill soil 11 is preferably cohesive soil with water content meeting compaction requirements, the plain concrete 9 is backfilled once, backfill elevation reaches the top end of a rubber hose 8, the backfill soil 10 is backfilled in layers, and the backfill elevation reaches the top surfaces of a cross beam 5 and a connecting beam 4, as shown in FIG. 6; and 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 recovered, as shown in fig. 7.
The embodiments of the present invention are not limited thereto, and according to the above-described aspects of the present invention, the present invention may be modified, replaced or altered in various other ways without departing from the basic technical spirit of the present invention, all of which fall within the scope of the claims of the present invention, according to the general technical knowledge and conventional means of the present art.
Claims (7)
1. The utility model provides a buried pipeline robber for emergency and repair device which characterized in that: the device is positioned below the ground surface and comprises micro 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 steel strands, wherein two ends of the cross beam are connected to the pair of connecting beams, the lower end of each micro pile stretches into a rock bearing layer, the connecting beam is positioned above the micro pile and is connected with the upper end of the micro pile, 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 so as to support the buried pipeline; the line segments extending on the lower pipe wall of the buried pipeline of the steel strand are wrapped in a sleeve made of elastic materials, and the elastic materials are rubber; and an 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 pipe bottom of the buried pipeline is backfilled with plain concrete and backfill soil sequentially, the backfill soil adopts cohesive soil with water content meeting compaction requirements, the plain concrete is backfilled at one time, backfill elevation reaches the top end of the rubber hose, the backfill soil is backfilled in layers, and the backfill elevation reaches the top surfaces of the cross beam and the connecting beam.
2. The buried pipeline emergency reinforcing apparatus according to claim 1, wherein: the buried pipeline emergency strengthening device comprises prestress anchor cables which are respectively arranged at two sides of the buried pipeline, wherein the prestress anchor cables are obliquely arranged, the upper ends of the prestress anchor cables are fixed on the connecting beam, and the lower ends of the prestress anchor cables are anchored in soil.
3. The buried pipeline emergency reinforcing apparatus according to claim 1, wherein: the pile tops of the micro piles at two sides of the buried pipeline are uniform elevation.
4. A buried pipeline emergency reinforcing apparatus according to claim 3, wherein: the steel strand is anchored on the beam through an anchor.
5. The buried pipeline emergency reinforcing apparatus according to claim 4, wherein: and laying concrete pavement above the connecting beam and the cross beam.
6. A construction method of the buried pipeline emergency reinforcing apparatus according to any one of claims 1 to 5, characterized by comprising the steps of:
s1, determining piling positions of micro piles on two sides of a buried pipeline;
s2, driving the micro pile into soil body at the pile driving position, enabling the lower end of the micro pile to enter a rock bearing layer,
the pile tops of the micro piles on the two sides of the buried pipeline are uniform elevation;
s3, fixing a longitudinal connecting beam on the pile tops of the micro piles on each side, and then fixing the connecting beams on the pile tops of the micro piles on the two sides
A cross beam is connected between the two connecting beams;
s4, oblique pre-stressed anchor cables are arranged on two sides of the buried pipeline, and the upper ends of the pre-stressed anchor cables are connected with the connecting pipe
The upper end and the lower end of the beam are anchored in soil;
s5, symmetrically excavating soil bodies on two sides of the buried pipeline to the designed elevation;
s6, using the steel strand to downwards bypass the lower pipe wall of the buried pipeline, and fixing the two ends of the steel strand on the cross beam
Applying;
s7, backfilling plain concrete and backfill soil in sequence, and paving a concrete pavement above the backfill elevation.
7. The construction method according to claim 6, wherein: the design elevation is 105-110 mm below the pipe bottom of the buried pipeline; the top surface of crossbeam and the top surface parallel and level of continuous 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 |
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| CN113669502A CN113669502A (en) | 2021-11-19 |
| CN113669502B true CN113669502B (en) | 2023-11-21 |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120194258A (en) * | 2025-04-15 | 2025-06-24 | 国家石油天然气管网集团有限公司 | Protective structure of oil and gas pipeline and construction method thereof |
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|---|---|---|---|---|
| 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 | A kind of tunnel anti-heave reinforcement structure and construction method 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 | A kind of reinforcement method and structure of directly buried pipe under ground |
-
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 | A kind of tunnel anti-heave reinforcement structure and construction method 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 | A kind of reinforcement method and structure of directly buried pipe under ground |
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| CN113669502A (en) | 2021-11-19 |
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