CN104674817B - The method of the sealing of falling pressure type slip casting closure reserving hole - Google Patents
The method of the sealing of falling pressure type slip casting closure reserving hole Download PDFInfo
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- CN104674817B CN104674817B CN201510081907.XA CN201510081907A CN104674817B CN 104674817 B CN104674817 B CN 104674817B CN 201510081907 A CN201510081907 A CN 201510081907A CN 104674817 B CN104674817 B CN 104674817B
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- grouting
- reserving hole
- closure
- valve
- closedtop
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Revetment (AREA)
Abstract
The present invention relates to field of civil engineering, the method disclosing a kind of sealing of falling pressure type slip casting closure reserving hole, including: S1, the upper end of reserving hole arranges closedtop closure plate, and its lower end arranges underseal closure plate, wherein, offers injected hole and steam vent at underseal closure plate；S2, exhaustor is inserted in steam vent by lower from Shangdi, and make the upper end lower surface near closedtop closure plate of exhaustor, an air bleeding valve is connected in the lower end of exhaustor, the upper end of Grouting Pipe is connected with injected hole, connect a grouting valve in the lower end of Grouting Pipe, grouting valve is connected with the flow inlet of grouting equipment；S3, opens grouting equipment, air bleeding valve and grouting valve, injects firming agent in reserving hole, when air bleeding valve starts to overflow slurry, slowly closing air bleeding valve, observe the Pressure gauge of grouting equipment, after holding pressure a period of time according to the pressure requirements of design, close grouting valve, complete slip casting.Solve the construction difficult problem to reserving hole closure inside immersed tube under water, reduce construction safety risk.
Description
Technical field
The present invention relates to field of civil engineering, the method particularly relating to a kind of sealing of falling pressure type slip casting closure reserving hole.
Background technology
In immersed tube tunnel work progress, after immersed tube implantation completes under water, generally the reserving hole on construction period tunnel roof need to be blocked.Carry out this passage when blocking, take the lower port welding underseal closure plate in tunnel more, then outside tunnel, carry out underwater concreting, to complete closure.But this kind of closure mode is because relating to underwater concreting, security risk is relatively big, blocks difficult quality guarantee.Meanwhile, the closure mode of prior art is generally adopted the mode built from top to bottom, it is impossible to the inner side realizing immersed tube under water carries out plugging construction.
Summary of the invention
(1) to solve the technical problem that
The method that it is an object of the invention to provide a kind of sealing of falling pressure type slip casting closure reserving hole, solves the construction difficult problem to the closure of reserving hole under water inside immersed tube under water, and reduces construction safety risk and hidden danger of quality.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides the method for a kind of sealing of falling pressure type slip casting closure reserving hole, comprises the following steps:
S1, the upper end of reserving hole arranges closedtop closure plate, and its lower end arranges underseal closure plate, wherein, offers injected hole and steam vent at underseal closure plate；
S2, exhaustor is inserted in steam vent by lower from Shangdi, and make the upper end lower surface near closedtop closure plate of exhaustor, an air bleeding valve is connected in the lower end of exhaustor, the upper end of Grouting Pipe is connected with injected hole, connect a grouting valve in the lower end of Grouting Pipe, grouting valve is connected with the flow inlet of grouting equipment；
S3, opens grouting equipment, air bleeding valve and grouting valve, injects firming agent in reserving hole, when air bleeding valve starts to overflow slurry, slowly closing air bleeding valve, observe the Pressure gauge of grouting equipment, after holding pressure a period of time according to the pressure requirements of design, close grouting valve, complete slip casting.
Wherein, also include step S4, to be solidified dose reach intensity after, cut away the Grouting Pipe and exhaustor that are exposed at outside underseal closure plate, adopt steel plate that injected hole and steam vent are welded closure.
Wherein, before described step S1, also include step S01, manufacture under water immersed tube time, around the upper end of reserving hole, preset the stifled substrate of closedtop, around the lower end of reserving hole, preset bottom seal substrate.
Wherein, described step S1 includes, and adopts bolt to be connected by stifled to closedtop closure plate and closedtop substrate, adopts welding to be connected with bottom seal substrate by underseal closure plate.
(3) beneficial effect
The method of the sealing of falling pressure type slip casting provided by the invention closure reserving hole, plugging plate is set between the top and bottom of reserving hole, by the slip casting of falling means of press seals on the side in grouting equipment under water immersed tube, solve the construction difficult problem to reserving hole closure inside immersed tube under water, and reduce construction safety risk and hidden danger of quality.
Accompanying drawing explanation
Fig. 1 is the method work progress sectional view of the sealing of the falling pressure type slip casting closure reserving hole of the embodiment of the present invention.
In figure, 1: immersed tube under water；2: closedtop closure plate；3: underseal closure plate；4: exhaustor；5: Grouting Pipe；6: grouting valve；7: air bleeding valve；8: flow inlet；9: injected hole；10: steam vent；11: closedtop blocks up substrate；12: bottom seal substrate；101: reserving hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance is used for illustrating the present invention, but is not limited to the scope of the present invention.
With reference to shown in Fig. 1, the sealing of the falling pressure type slip casting of the present invention blocks the method for reserving hole, comprises the following steps:
S01: manufacture under water immersed tube 1 time, around the upper end of reserving hole 101, preset the stifled substrate 11 of closedtop, around the lower end of reserving hole 101, preset bottom seal substrate 12.The stifled substrate 11 of closedtop and bottom seal substrate 12 are doughnut-shaped steel plate structure, and wherein, the internal diameter of the stifled substrate 11 of closedtop is a bit larger tham the diameter of reserving hole 101, or the internal diameter of closedtop substrate 11 is identical with the diameter of reserving hole 101；The internal diameter of bottom seal substrate 12 is slightly less than the diameter of reserving hole 101.
S1, the upper end of reserving hole 101 arranges closedtop closure plate 2, and the lower end of reserving hole 101 arranges underseal closure plate 3, and the two ends of reserving hole 101 are blocked.Wherein, injected hole 9 and steam vent 10 are offered at underseal closure plate 3.Concrete, under water after immersed tube 1 implantation, adopt bolt to be connected by stifled to closedtop closure plate 2 and closedtop substrate 11, adopt welding to be connected with bottom seal substrate 12 by underseal closure plate 3.
S2, exhaustor 4 is inserted in steam vent 10 by lower from Shangdi, and make the upper end lower surface near closedtop closure plate 2 of exhaustor 4, an air bleeding valve 7 is connected in the lower end of exhaustor 4,5 upper ends of Grouting Pipe are connected with injected hole 9, connect a grouting valve 6 in the lower end of Grouting Pipe 5, grouting valve 6 is connected with the flow inlet 8 of grouting equipment.Concrete, exhaustor 4 is inserted in steam vent 10, and exhaustor 4 is welded to connect with steam vent 10 employing, eliminate the gap between steam vent 10 and exhaustor 4.The upper end of Grouting Pipe 5 and steam vent 9 are welded to connect.
S3, opens grouting equipment, air bleeding valve 7 and grouting valve 6, injects firming agent in reserving hole 101, when air bleeding valve 7 starts to overflow slurry, slowly closing air bleeding valve 7, observe the Pressure gauge of grouting equipment, after holding pressure a period of time according to the pressure requirements of design, close grouting valve 6, complete slip casting.
S4, to be solidified dose reach intensity after, cut away the Grouting Pipe 5 and exhaustor 4 that are exposed at outside underseal closure plate 3, adopt steel plate that injected hole 9 and steam vent 10 are welded closure.
Wherein, firming agent described above is cement mortar or other plugging materials.
It should be noted that in practical operation, the perforate operation offering injected hole 9 and steam vent 10 at underseal closure plate 3 can carry out after closure, it is also possible to before closure.Grouting Pipe is set at injected hole and/or the operating procedure of exhaustor is set at steam vent can also complete before underseal closure plate is welded on bottom seal substrate, even if those skilled in the art adopt this kind of operation order to be also regarded as dropping within protection scope of the present invention.The method of the sealing of the falling pressure type slip casting closure reserving hole of the present invention can be equally used for constructing by land, is not limited to underwater construction.
The method using the sealing of the falling pressure type slip casting closure reserving hole of the present invention, plugging plate is set between the top and bottom of reserving hole, by the slip casting of falling means of press seals on the side in grouting equipment under water immersed tube, solve the construction difficult problem to the closure of reserving hole under water outside immersed tube under water, and reduce construction safety risk and hidden danger of quality.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. the method for the sealing of falling a pressure type slip casting closure reserving hole, it is characterised in that comprise the following steps:
S1, the upper end of reserving hole arranges closedtop closure plate, and its lower end arranges underseal closure plate, wherein, offers injected hole and steam vent at underseal closure plate；
S2, exhaustor is inserted in steam vent by lower from Shangdi, and make the upper end lower surface near closedtop closure plate of exhaustor, an air bleeding valve is connected in the lower end of exhaustor, the upper end of Grouting Pipe is connected with injected hole, connect a grouting valve in the lower end of Grouting Pipe, grouting valve is connected with the flow inlet of grouting equipment；
S3, opens grouting equipment, air bleeding valve and grouting valve, injects firming agent in reserving hole, when air bleeding valve starts to overflow slurry, slowly closing air bleeding valve, observe the Pressure gauge of grouting equipment, after holding pressure a period of time according to the pressure requirements of design, close grouting valve, complete slip casting；
Also include S01 before described step S1, manufacture under water immersed tube time, around the upper end of reserving hole, preset the stifled substrate of closedtop, around the lower end of reserving hole, preset bottom seal substrate；The stifled substrate of closedtop and bottom seal substrate are doughnut-shaped steel plate structure, and the internal diameter of the stifled substrate of closedtop is more than or equal to the diameter of reserving hole；The internal diameter of bottom seal substrate is less than the diameter of reserving hole.
2. the method for the sealing of falling pressure type slip casting closure reserving hole as claimed in claim 1, it is characterized in that, also include step S4, to be solidified dose reach intensity after, cut away the Grouting Pipe and exhaustor that are exposed at outside underseal closure plate, adopt steel plate that injected hole and steam vent are welded closure.
3. the method for the sealing of falling pressure type slip casting closure reserving hole as claimed in claim 1, it is characterised in that described step S1 includes, adopts bolt to be connected by stifled to closedtop closure plate and closedtop substrate, adopts welding to be connected with bottom seal substrate by underseal closure plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081907.XA CN104674817B (en) | 2015-02-16 | 2015-02-16 | The method of the sealing of falling pressure type slip casting closure reserving hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081907.XA CN104674817B (en) | 2015-02-16 | 2015-02-16 | The method of the sealing of falling pressure type slip casting closure reserving hole |
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| CN104674817A CN104674817A (en) | 2015-06-03 |
| CN104674817B true CN104674817B (en) | 2016-06-29 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590681A (en) * | 2018-06-22 | 2018-09-28 | 中铁第勘察设计院集团有限公司 | Shield well reserving hole quick blocking system and its construction method |
| CN113431089A (en) * | 2021-07-28 | 2021-09-24 | 中船黄埔文冲船舶有限公司 | Manhole well installation process on steel shell of immersed tube tunnel |
| CN113653355B (en) * | 2021-08-03 | 2023-03-10 | 中国十七冶集团有限公司 | Construction method for plugging reserved hole of lower laminate of closed space |
| CN114592441A (en) * | 2022-01-28 | 2022-06-07 | 交通运输部公路科学研究所 | Grouting reinforcement structure for improving shear bearing capacity of concrete hollow slab beam end and construction method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11229414A (en) * | 1998-02-10 | 1999-08-24 | Penta Ocean Constr Co Ltd | Connection method of immersed tunnel |
| JP3658728B2 (en) * | 2001-08-03 | 2005-06-08 | 東洋建設株式会社 | Direction correction device and direction correction method for sinking box |
| KR100921188B1 (en) * | 2009-04-15 | 2009-10-13 | (주)대우건설 | Connecting structure and connecting methods of immersed tunnel |
| CN202787334U (en) * | 2012-07-16 | 2013-03-13 | 杭州萧宏建设集团有限公司 | Sealing structure of deep well casing used during tunnel construction |
| CN103741695A (en) * | 2013-11-29 | 2014-04-23 | 中交第二航务工程局有限公司 | Embedded grouting pipe installed on waterstop and grouting method |
| CN203809012U (en) * | 2014-03-12 | 2014-09-03 | 广州地铁设计研究院有限公司 | Shield tunnel foundation base reserved grouting and processing system |
| CN104074535A (en) * | 2014-07-04 | 2014-10-01 | 东华理工大学 | Composite reinforcing method for grotto roof peeling defects of sandstone grotto |
| CN204082170U (en) * | 2014-07-24 | 2015-01-07 | 山东大学 | A kind of energy-absorbing being applicable to weak broken wall rock allows presses tunnel support system |
-
2015
- 2015-02-16 CN CN201510081907.XA patent/CN104674817B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11229414A (en) * | 1998-02-10 | 1999-08-24 | Penta Ocean Constr Co Ltd | Connection method of immersed tunnel |
| JP3658728B2 (en) * | 2001-08-03 | 2005-06-08 | 東洋建設株式会社 | Direction correction device and direction correction method for sinking box |
| KR100921188B1 (en) * | 2009-04-15 | 2009-10-13 | (주)대우건설 | Connecting structure and connecting methods of immersed tunnel |
| CN202787334U (en) * | 2012-07-16 | 2013-03-13 | 杭州萧宏建设集团有限公司 | Sealing structure of deep well casing used during tunnel construction |
| CN103741695A (en) * | 2013-11-29 | 2014-04-23 | 中交第二航务工程局有限公司 | Embedded grouting pipe installed on waterstop and grouting method |
| CN203809012U (en) * | 2014-03-12 | 2014-09-03 | 广州地铁设计研究院有限公司 | Shield tunnel foundation base reserved grouting and processing system |
| CN104074535A (en) * | 2014-07-04 | 2014-10-01 | 东华理工大学 | Composite reinforcing method for grotto roof peeling defects of sandstone grotto |
| CN204082170U (en) * | 2014-07-24 | 2015-01-07 | 山东大学 | A kind of energy-absorbing being applicable to weak broken wall rock allows presses tunnel support system |
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| CN104674817A (en) | 2015-06-03 |
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