CN113846569A - Continuous rigid frame segment vertical prestressed pipeline series vacuum pressure grouting method - Google Patents
Continuous rigid frame segment vertical prestressed pipeline series vacuum pressure grouting method Download PDFInfo
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- CN113846569A CN113846569A CN202111283485.6A CN202111283485A CN113846569A CN 113846569 A CN113846569 A CN 113846569A CN 202111283485 A CN202111283485 A CN 202111283485A CN 113846569 A CN113846569 A CN 113846569A
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- pipeline
- grouting
- vertical prestressed
- vacuum pump
- vertical
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000011440 grout Substances 0.000 claims abstract description 23
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000005086 pumping Methods 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
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Classifications
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a vacuum pressure grouting method for connecting vertical prestressed pipelines of continuous rigid frame segments in series, which comprises the following steps: grouting equipment, a grouting pipeline and a vacuum pump; the grouting equipment is arranged on the box girder and is connected to the grout inlet of the grouting pipeline in a sealing manner; the vacuum pump is also arranged on the box girder and is in sealing connection with the slurry outlet of the light-driven pipeline; the grouting pipeline is connected with the vertical prestressed pipeline and the grouting equipment and the vacuum pump, the continuous steel structure section vertical prestressed pipeline is connected in series through the grouting pipeline, then the vacuum pump is used for pumping out continuous steel structure section prestressed grouting air to reach a vacuum state, and grouting treatment is carried out by the grouting equipment, so that quick grouting of the continuous steel structure section vertical prestressed pipeline can be realized, grouting efficiency is improved, and construction time is shortened.
Description
Technical Field
The invention relates to the field of buildings, in particular to a vacuum pressure grouting method for the serial connection of vertical prestressed pipelines of continuous rigid frame segments.
Background
At present, foundation construction requirements are not huge, new challenges are provided for building efficiency, existing grouting methods for prestressed pipelines are that independent grouting is carried out on the independent prestressed pipelines, on the basis, the prestressed pipelines are embedded independently and then grouted, and in the whole construction process of bridges or roads, the method is not an efficient grouting method, so that the grouting method is provided for improving the grouting efficiency of the vertical prestressed pipelines in the continuous steel structure stage.
Disclosure of Invention
The invention provides a serial vacuum pressure grouting method for a continuous steel structure segment vertical prestressed pipeline.
In order to achieve the purpose, the invention provides the following technical scheme: a vacuum pressure grouting method for the serial connection of vertical prestressed pipelines of continuous rigid frame segments comprises the following steps: grouting equipment, a grouting pipeline and a vacuum pump;
the grouting equipment is arranged on the box girder and is connected to the grout inlet of the grouting pipeline in a sealing manner;
the vacuum pump is also arranged on the box girder and is in sealing connection with the slurry outlet of the light-driven pipeline;
the grouting pipeline is connected with the vertical prestressed pipeline, the grouting equipment and the vacuum pump.
Preferably, three adjacent vertical prestressed pipelines are selected, the first vertical prestressed pipeline, the second vertical prestressed pipeline and the third vertical prestressed pipeline are arranged along the construction direction, and the upper end and the lower end of each of the first vertical prestressed pipeline, the second vertical prestressed pipeline and the third vertical prestressed pipeline are respectively provided with a grouting pipeline connector.
Preferably, the grouting pipeline connecting port below the first vertical prestressed pipeline is a grout inlet, the grouting pipeline above the third vertical prestressed pipeline is a grout outlet, the grouting pipeline connecting port above the middle second vertical prestressed pipeline is connected with the grouting pipeline connecting port above the first vertical prestressed pipeline through a grouting pipeline, and the grouting pipeline connecting port below the second vertical prestressed pipeline is connected with the grouting pipeline connecting port below the third vertical prestressed pipeline through a grouting pipeline.
Preferably, the grouting pipeline connected with each grouting pipeline connecting port is provided with a connecting switch, and the connecting switch is provided with a sealing sleeve.
Preferably, the method comprises the following steps:
firstly, preparing cement paste according to a designed proportion, and closing all connecting switches connected with grouting pipelines;
secondly, starting a vacuum pump to pump out air in the vertical prestressed pipeline and the grouting pipeline, observing whether the condition that the connecting pipeline is not tightly sealed exists when a pressure gauge of the vacuum pump reaches-0.05 to-0.1 Mpa, processing if the condition that the connecting pipeline is not tightly sealed exists, starting grouting equipment to a grout inlet of the grouting pipeline until grout overflows from a grout outlet of the grouting pipeline, and closing the vacuum pump;
and thirdly, sampling the slurry flowing out of the slurry outlet of the grouting pipeline, measuring the consistency of the slurry, stopping grouting until the consistency of the slurry meets the design requirement, and opening a connecting switch connected with the grouting pipeline at the upper end of the vertical prestressed pipeline.
The invention has the beneficial effects that: the continuous steel structure segment vertical prestressed pipelines are connected in series through the grouting pipelines, then the vacuum pump is utilized to pump out the continuous steel structure segment prestressed grouting air to reach a vacuum state, grouting equipment is recycled to conduct grouting treatment, quick grouting of the continuous steel structure segment vertical prestressed pipelines can be achieved, grouting efficiency is improved, and construction time is shortened.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a vertical pre-stressed conduit of the present invention in series;
FIG. 2 is a cross-sectional view of a single row of vertical pre-stressed conduits in series in accordance with the present invention;
FIG. 3 is a cross-sectional view of a detail of the present invention;
fig. 4 is a series sectional view of multiple rows of vertical prestressed pipes according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the method for vacuum pressure grouting of the continuous rigid frame segment vertical prestressed pipeline series connection, as shown in fig. 1, fig. 2 and fig. 3, the first vertical prestressed pipeline 4, the second vertical prestressed pipeline 5 and the third vertical prestressed pipeline 6 are only for convenience of expression, the continuous vertical prestressed pipeline is not limited to the above, the number of the vertical prestressed pipelines in series connection can be set according to the comprehensive conditions of the grouting equipment 1, the bearing capacity of the grouting pipeline 2, the vacuum pump 3 and the like, and the known vertical prestressed pipelines generally comprise prestressed corrugated pipes, spiral spring ribs, anchor backing plates, finish-rolled threaded steel bars and anchor nuts.
A vacuum pressure grouting method for the serial connection of vertical prestressed pipelines of continuous rigid frame segments comprises the following steps: the grouting device 1, the grouting pipeline 2 and the vacuum pump 3; the grouting equipment 1 is arranged on a box girder and is connected to a grouting inlet 8 of the grouting pipeline 2 in a sealing manner; the vacuum pump 3 is also arranged on the box girder and is in sealing connection with the slurry outlet 9 of the light-driven pipeline; the grouting pipeline 2 is connected with the vertical prestressed pipeline, the grouting equipment 1 and the vacuum pump 3; and three adjacent vertical prestressed pipelines are selected, the three vertical prestressed pipelines are respectively a first vertical prestressed pipeline 4, a second vertical prestressed pipeline 5 and a third vertical prestressed pipeline 6 along the construction direction, and the upper end and the lower end of each of the first vertical prestressed pipeline 4, the second vertical prestressed pipeline 5 and the third vertical prestressed pipeline 6 are respectively provided with a grouting pipeline 2 connector.
Through the arrangement, before grouting is carried out by the grouting equipment 1, air in the grouting pipeline 2 and the vertical prestressed pipeline can be pumped out by the vacuum pump 3, so that the grouting pipeline 2 and the vertical prestressed pipeline are in a vacuum state, the sealing requirements on all pipelines are strict, sealing connection can be carried out by using a special sealing adhesive tape for construction, and grouting is carried out by using the grouting equipment 1 and the pressure created by vacuum in the vacuum state.
A grouting pipeline 2 connecting port below the first vertical prestressed pipeline 4 is a grout inlet 8, a grouting pipeline 2 above the third vertical prestressed pipeline 6 is a grout outlet 9, a grouting pipeline 2 connecting port above the middle second vertical prestressed pipeline 5 is connected with the grouting pipeline 2 connecting port above the first vertical prestressed pipeline 4 through a grouting pipeline 2, and a grouting pipeline 2 connecting port below the second vertical prestressed pipeline 5 is connected with a grouting pipeline 2 connecting port below the third vertical prestressed pipeline 6 through a grouting pipeline 2; the grouting pipelines 2 connected with the connectors of the grouting pipelines 2 are provided with connecting switches 10, and sealing sleeves are arranged at the positions of the connecting switches 10.
Through the aforesaid setting, will vertical prestressed pipe carries out the polyphone and handles for the slurry can get into whole vertical prestressed pipe and the grout pipeline 2 that concatenates through grout inlet 8, improves whole vertical prestressed pipe's grout efficiency, shortens the engineering time, linked switch 10's setting is for the series connection of vertical prestressed pipe in order to be convenient for, if do not establish linked switch 10 and all connect whole serial structure in advance, the in-process of transportation and construction is too big because overall structure, unusual inconvenient also can take place to the structure and damage, linked switch 10's setting moreover, if break down at the grout in-process and need wash the grout again, opens linked switch 10 also more conveniently goes on the cleaning operation.
As shown in fig. 4, the serial vacuum pressure grouting method for the vertical prestressed pipes of the continuous rigid frame segments further comprises a method for serially connecting a plurality of rows of vertical prestressed pipes in vacuum pressure grouting, besides the single row of vertical prestressed pipes in serial vacuum pressure grouting method.
Preferably, the method comprises the following steps:
firstly, preparing cement paste according to a designed proportion, and closing all connecting switches 10 connected with the grouting pipelines 2;
secondly, starting a vacuum pump 3 to pump out air in the vertical prestressed pipeline and the grouting pipeline 2, observing whether the connecting pipeline is not tightly sealed or not when a pressure gauge of the vacuum pump 3 reaches-0.05 to-0.1 Mpa, preferably-0.08 Mpa, if the connecting pipeline is not tightly sealed, processing, if the connecting pipeline is not tightly sealed, starting a grouting device 1 to a grout inlet 8 of the grouting pipeline 2 until grout overflows from a grout outlet 9 of the grouting pipeline 2, and closing the vacuum pump 3;
and thirdly, sampling the slurry flowing out of the slurry outlet 9 of the grouting pipeline 2, measuring the consistency of the slurry, stopping grouting until the consistency of the slurry meets the design requirement, and opening a connecting switch 10 which is connected with the grouting pipeline 2 and arranged at the upper end of the vertical prestressed pipeline.
Through the arrangement, the step of continuous steel structure segment vertical prestressed pipeline serial vacuum pressure grouting can be completed, and the effect of quick grouting is achieved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A vacuum pressure grouting method for the serial connection of vertical prestressed pipelines of continuous rigid frame segments is characterized by comprising the following steps: grouting equipment, a grouting pipeline and a vacuum pump;
the grouting equipment is arranged on the box girder and is connected to the grout inlet of the grouting pipeline in a sealing manner;
the vacuum pump is also arranged on the box girder and is in sealing connection with the slurry outlet of the light-driven pipeline;
the grouting pipeline is connected with the vertical prestressed pipeline, the grouting equipment and the vacuum pump.
2. The vacuum pressure grouting method for the vertical prestressed pipe series connection of continuous rigid frame segments according to claim 1, characterized in that: and selecting three adjacent vertical prestressed pipelines, wherein a first vertical prestressed pipeline, a second vertical prestressed pipeline and a third vertical prestressed pipeline are respectively arranged along the construction direction, and the upper end and the lower end of each of the first vertical prestressed pipeline, the second vertical prestressed pipeline and the third vertical prestressed pipeline are respectively provided with a grouting pipeline connector.
3. The vacuum pressure grouting method for the vertical prestressed pipe series connection of continuous rigid frame segments according to claim 2, characterized in that: the grouting pipeline connecting port below the first vertical prestressed pipeline is a grout inlet, the grouting pipeline above the third vertical prestressed pipeline is a grout outlet, the grouting pipeline connecting port above the middle second vertical prestressed pipeline is connected with the grouting pipeline connecting port above the first vertical prestressed pipeline through a grouting pipeline, and the grouting pipeline connecting port below the second vertical prestressed pipeline is connected with the grouting pipeline connecting port below the third vertical prestressed pipeline through a grouting pipeline.
4. The continuous rigid frame segment vertical prestressed pipe series vacuum pressure grouting method according to claim 3, characterized in that: the grouting pipelines connected with the grouting pipeline connectors are provided with connecting switches, and sealing sleeves are arranged at the positions of the connecting switches.
5. The method for vacuum pressure grouting of a continuous rigid frame segment vertical prestressed pipe series according to claims 1-4, characterized by comprising the following steps:
firstly, preparing cement paste according to a designed proportion, and closing all connecting switches connected with grouting pipelines;
secondly, starting a vacuum pump to pump out air in the vertical prestressed pipeline and the grouting pipeline, observing whether the condition that the connecting pipeline is not tightly sealed exists when a pressure gauge of the vacuum pump reaches-0.05 to-0.1 Mpa, processing if the condition that the connecting pipeline is not tightly sealed exists, starting grouting equipment to a grout inlet of the grouting pipeline until grout overflows from a grout outlet of the grouting pipeline, and closing the vacuum pump;
and thirdly, sampling the slurry flowing out of the slurry outlet of the grouting pipeline, measuring the consistency of the slurry, stopping grouting until the consistency of the slurry meets the design requirement, and opening a connecting switch connected with the grouting pipeline at the upper end of the vertical prestressed pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283485.6A CN113846569A (en) | 2021-11-01 | 2021-11-01 | Continuous rigid frame segment vertical prestressed pipeline series vacuum pressure grouting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283485.6A CN113846569A (en) | 2021-11-01 | 2021-11-01 | Continuous rigid frame segment vertical prestressed pipeline series vacuum pressure grouting method |
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| CN113846569A true CN113846569A (en) | 2021-12-28 |
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| CN202111283485.6A Pending CN113846569A (en) | 2021-11-01 | 2021-11-01 | Continuous rigid frame segment vertical prestressed pipeline series vacuum pressure grouting method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202164545U (en) * | 2011-07-26 | 2012-03-14 | 天津城市建设学院 | Vertical prestressing pore canal communicating pipes and mud-jacking pipes |
| CN206616469U (en) * | 2017-03-07 | 2017-11-07 | 江苏乾程工程技术有限公司 | Presstressed reinforcing steel mud jacking structure |
| CN208201648U (en) * | 2017-12-25 | 2018-12-07 | 云南省建设投资控股集团有限公司 | Continuous rigid frame bridge web is the same as row's vertical prestressing pipeline communicating pipe |
| CN109505259A (en) * | 2018-12-25 | 2019-03-22 | 北京市政建设集团有限责任公司 | A kind of bridge box and beam prestressing force vertical tube grouting method |
| CN110815547A (en) * | 2019-12-13 | 2020-02-21 | 中庆建设有限责任公司 | Prefabricated case roof beam vacuum assisted cycle mud jacking device |
| CN111592297A (en) * | 2020-04-29 | 2020-08-28 | 广东长宏建设集团有限公司 | Vacuum grouting process for expressway |
-
2021
- 2021-11-01 CN CN202111283485.6A patent/CN113846569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202164545U (en) * | 2011-07-26 | 2012-03-14 | 天津城市建设学院 | Vertical prestressing pore canal communicating pipes and mud-jacking pipes |
| CN206616469U (en) * | 2017-03-07 | 2017-11-07 | 江苏乾程工程技术有限公司 | Presstressed reinforcing steel mud jacking structure |
| CN208201648U (en) * | 2017-12-25 | 2018-12-07 | 云南省建设投资控股集团有限公司 | Continuous rigid frame bridge web is the same as row's vertical prestressing pipeline communicating pipe |
| CN109505259A (en) * | 2018-12-25 | 2019-03-22 | 北京市政建设集团有限责任公司 | A kind of bridge box and beam prestressing force vertical tube grouting method |
| CN110815547A (en) * | 2019-12-13 | 2020-02-21 | 中庆建设有限责任公司 | Prefabricated case roof beam vacuum assisted cycle mud jacking device |
| CN111592297A (en) * | 2020-04-29 | 2020-08-28 | 广东长宏建设集团有限公司 | Vacuum grouting process for expressway |
Non-Patent Citations (1)
| Title |
|---|
| 文武松等: "《苏通大桥辅航道连续刚构桥建造技术》", 30 November 2010, 中国铁道出版社 * |
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Application publication date: 20211228 |
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