CN110873228A - Installation method of pipeline limiting damping buttress used in comprehensive pipe gallery - Google Patents
Installation method of pipeline limiting damping buttress used in comprehensive pipe gallery Download PDFInfo
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- CN110873228A CN110873228A CN201911033360.0A CN201911033360A CN110873228A CN 110873228 A CN110873228 A CN 110873228A CN 201911033360 A CN201911033360 A CN 201911033360A CN 110873228 A CN110873228 A CN 110873228A
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- Prior art keywords
- buttress
- block
- pipe gallery
- pipeline
- lower block
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0337—Noise absorbers by means of a flexible connection
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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
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to an installation method of a pipeline limiting damping buttress used in a comprehensive pipe gallery, which comprises the following steps: A. pouring a lower pier block of a reinforced concrete structure, and anchoring a steel bar into a pipe gallery bottom plate in a reserved or bar planting mode; B. fixing a rubber pad on the side surface of the buttress lower block through a rivet, and fixing polytetrafluoroethylene plates on the pipe gallery bottom plates on two sides of the buttress lower block and the top of the buttress lower block through rivets; C. pouring an upper buttress block, embedding anchor bolts in the upper buttress block, and leaving a groove matched with a lower buttress block at the bottom of the upper buttress block; D. the pipeline is externally wrapped with a steel anchor ear and is fixed on the buttress upper block through an embedded anchor bolt; E. the buttress upper block is reversely buckled on the buttress lower block, so that the buttress lower block is positioned in the groove at the bottom of the buttress upper block. The buttress has the functions of limiting and damping, meets the normal use requirement of the pipeline in the comprehensive pipe gallery, reduces earthquake force and improves the safety degree under the earthquake action.
Description
Technical Field
The invention relates to the technical field of shockproof and disaster reduction structures, in particular to a mounting method of a pipeline limiting and damping buttress in a comprehensive pipe gallery.
Background
The construction of the underground comprehensive pipe gallery is beneficial to the planning, construction and management of various municipal pipelines, the safe operation level and the disaster prevention and reduction capability of the pipelines are improved, and further the safety of the city is ensured, so the comprehensive pipe gallery is called as the life line engineering of the city. With the recent indications of a plurality of major earthquake disasters, the earthquake-resistant performance of underground structures similar to the comprehensive pipe gallery is far less reliable than imagination, and the solution of the earthquake-resistant problem of the comprehensive pipe gallery and the accommodating pipelines thereof becomes important work in the research of urban disaster prevention and reduction.
The existing structural seismic technology is mainly divided into two ways of 'resisting' and 'isolating'. "resistance" is intended to increase the seismic capacity of a structure by increasing the strength, stiffness or ductility of the structure to resist the effects of vibration and does not minimize the loss of seismic damage. The shock isolation starts from reducing the shock action, a shock isolation layer is formed by arranging a shock isolation device, the shock is isolated or buffered, the basic period of the structure is prolonged, the damping of the structure is properly increased, the acceleration acting on the structure is greatly reduced, the purposes of reducing the shock action and protecting the structure are achieved, and the method is a direct and effective method for reducing the shock hazard.
The pipeline in the utility tunnel is fixed in inside the utility tunnel through directly placing on buttress (seat) or the gallows that link to each other with body structure. The transfer process of seismic motion can be represented as: soil body-gallery body structure-buttress (seat) -pipeline. Therefore, the earthquake force acting on the pipeline is transmitted by the buttress (seat), and the pipeline is easy to slide and deform at the buttress (seat), so that the design of seismic mitigation and isolation at the buttress (seat) has practical significance for relieving pipeline seismic hazard and ensuring operation safety.
Disclosure of Invention
The invention aims to provide an installation method of a pipeline limiting and damping buttress used in a comprehensive pipe gallery, which can limit the pipeline from laterally moving under the action of water hammer, temperature and the like, and can reduce the pipeline earthquake disaster and ensure the normal operation of the pipeline during earthquake.
In order to achieve the purpose, the technical scheme of the invention is as follows: a mounting method of a pipeline limiting damping buttress used in a comprehensive pipe gallery is characterized by comprising the following steps
A. Pouring a lower pier block of a reinforced concrete structure, and anchoring a steel bar into a pipe gallery bottom plate in a reserved or bar planting mode;
B. fixing a rubber pad on the side surface of the buttress lower block through a rivet, and fixing polytetrafluoroethylene plates on the pipe gallery bottom plates on two sides of the buttress lower block and the top of the buttress lower block through rivets;
C. pouring an upper buttress block, embedding anchor bolts in the upper buttress block, and leaving a groove matched with a lower buttress block at the bottom of the upper buttress block;
D. the pipeline is externally wrapped with a steel anchor ear and is fixed on the buttress upper block through an embedded anchor bolt;
E. the buttress upper block is reversely buckled on the buttress lower block, so that the buttress lower block is positioned in the groove at the bottom of the buttress upper block.
Further, the lower pier block is rectangular or circular.
Furthermore, the height of the lower block of the buttress is not less than 300mm higher than the bottom plate surface.
Further, the thickness of the rubber pad is not less than 40mm, and the thickness of the polytetrafluoroethylene plate is not less than 5 mm.
The buttress upper block is reversely buckled on the lower block, and the buttress upper block and the lower block are in mutual contact to transfer force, so that the buttress upper block can play a role in limiting. The side edge of the lower block of the buttress is provided with a rubber cushion layer, the top surface is provided with a polytetrafluoroethylene plate sliding isolation layer, and an earthquake reduction and isolation layer is formed between the upper block and the lower block to reduce earthquake force acting on a pipeline.
The pier has the obvious technical characteristics that the pier has the functions of limiting and damping, meets the normal use requirement of the pipeline in the comprehensive pipe gallery, reduces earthquake force and improves the safety degree under the earthquake action; secondly, the buttress can adopt a reinforced concrete cast-in-place structure, and can also adopt a prefabricated structure or a steel structure, so that the construction is convenient and easy to implement; thirdly, the buttress is suitable for pipelines made of various materials such as steel pipes, spherical ink pipes, concrete pipes, plastic pipes and the like.
Drawings
FIG. 1 is a schematic view of a plane installation of a limiting damping buttress.
Fig. 2 is a sectional view of a limiting shock absorbing buttress taken along line a-a.
FIG. 3 is a B-B cross-sectional view of a spacing shock absorbing buttress.
The specific implementation mode is as follows:
the invention is further described below with reference to the figures and examples.
As shown in fig. 1, 2 and 3, the limiting damping buttress comprises a buttress upper block 1, a buttress lower block 2, an anchor rib 3, a rubber pad 4, a polytetrafluoroethylene plate 5 and the like. Buttress lower block 2 passes through anchor bar 3 to be fixed at the piping lane bottom plate, and buttress lower block 2 is higher than the bottom plate face and is generally not less than 300mm, and buttress upper block 1 bottom forms the recess, and the size is with buttress lower block 2, and the back-off is on buttress lower block 2. The side of the buttress lower block 2 is provided with a rubber pad 4, the thickness is generally not less than 40mm, the top surface is provided with a polytetrafluoroethylene plate 5, the thickness is generally not less than 5mm, and the rubber pad 4 and the polytetrafluoroethylene plate 5 are both fixed on the buttress lower block 2 through rivets. Also set up polytetrafluoroethylene board 5 between buttress upper block 1 and the piping lane bottom plate, thickness is generally not less than 5 mm. The pipeline (steel pipe) 6 is wrapped by a steel anchor ear 7 and is fixed on the buttress upper block 1 through an anchor bolt 8.
Example (b):
the plane size of the upper block 1 of the buttress of a certain comprehensive pipe gallery is 800mm x 800mm and the height is 600mm, and the plane size of the lower block 2 of the buttress is 400mm x 400mm and the height is 300mm, and reinforced concrete cast-in-place structures are adopted. The anchor bars 3 are 9 phi 20 steel bars and are anchored into the pipe gallery bottom plate in a reserved or bar planting mode. Pouring buttress lower block 2 earlier, then pass through fix with rubber pad 4 and polytetrafluoroethylene board 5 at buttress lower block 2 and piping lane bottom plate through rivet, then secondary pouring buttress upper block 1, buttress upper block 1 embedded anchor 8, anchor 8 adopts 4M 24, wraps the steel staple bolt 7 outside pipeline (steel pipe) 6 at last, is fixed in buttress upper block 1 through anchor 8.
Claims (4)
1. A mounting method of a pipeline limiting damping buttress used in a comprehensive pipe gallery is characterized by comprising the following steps
A. Pouring a lower pier block of a reinforced concrete structure, and anchoring a steel bar into a pipe gallery bottom plate in a reserved or bar planting mode;
B. fixing a rubber pad on the side surface of the buttress lower block through a rivet, and fixing polytetrafluoroethylene plates on the pipe gallery bottom plates on two sides of the buttress lower block and the top of the buttress lower block through rivets;
C. pouring an upper buttress block, embedding anchor bolts in the upper buttress block, and leaving a groove matched with a lower buttress block at the bottom of the upper buttress block;
D. the pipeline is externally wrapped with a steel anchor ear and is fixed on the buttress upper block through an embedded anchor bolt;
E. the buttress upper block is reversely buckled on the buttress lower block, so that the buttress lower block is positioned in the groove at the bottom of the buttress upper block.
2. The installation method of the pipeline limiting damping buttress used in the utility tunnel according to claim 1, characterized in that: the lower block of the buttress is rectangular or circular.
3. The installation method of the pipeline limiting damping buttress used in the utility tunnel according to claim 1, characterized in that: the lower block of the buttress is higher than the bottom plate surface by not less than 300 mm.
4. The installation method of the pipeline limiting damping buttress used in the utility tunnel according to claim 1, characterized in that: the thickness of the rubber pad is not less than 40mm, and the thickness of the polytetrafluoroethylene plate is not less than 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911033360.0A CN110873228A (en) | 2019-10-28 | 2019-10-28 | Installation method of pipeline limiting damping buttress used in comprehensive pipe gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911033360.0A CN110873228A (en) | 2019-10-28 | 2019-10-28 | Installation method of pipeline limiting damping buttress used in comprehensive pipe gallery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110873228A true CN110873228A (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911033360.0A Pending CN110873228A (en) | 2019-10-28 | 2019-10-28 | Installation method of pipeline limiting damping buttress used in comprehensive pipe gallery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900488A (en) * | 2021-01-16 | 2021-06-04 | 北京工业大学 | Self-resetting anti-seismic support for underground comprehensive pipe gallery internal pipeline |
-
2019
- 2019-10-28 CN CN201911033360.0A patent/CN110873228A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900488A (en) * | 2021-01-16 | 2021-06-04 | 北京工业大学 | Self-resetting anti-seismic support for underground comprehensive pipe gallery internal pipeline |
| CN112900488B (en) * | 2021-01-16 | 2022-02-08 | 北京工业大学 | Self-resetting anti-seismic support for underground comprehensive pipe gallery internal pipeline |
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