CN104674817A - Reverse pressing type sealing grouting preserved hole sealing and blocking method - Google Patents
Reverse pressing type sealing grouting preserved hole sealing and blocking method Download PDFInfo
- Publication number
- CN104674817A CN104674817A CN201510081907.XA CN201510081907A CN104674817A CN 104674817 A CN104674817 A CN 104674817A CN 201510081907 A CN201510081907 A CN 201510081907A CN 104674817 A CN104674817 A CN 104674817A
- Authority
- CN
- China
- Prior art keywords
- grouting
- hole
- sealing
- valve
- reserving hole
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Classifications
-
- 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
Abstract
The invention relates to the field of civil engineering, and discloses a reverse pressing type sealing grouting preserved hole sealing and blocking method. The method comprises the following steps that S, the upper end of a preserved hole is provided with a top sealing and blocking plate, and the lower end of the preserved hole is provided with a bottom sealing and blocking plate, wherein a grouting hole and an exhaust hole are formed in the bottom sealing and blocking plate; S2, an exhaust pipe is inserted into the exhaust hole from bottom to top, in addition, the upper end of the exhaust pipe approaches to the lower surface of the top sealing and blocking plate, the lower end of the exhaust pipe is connected with an exhaust valve, the upper end of the grouting pipe is connected with a grouting hole, a grouting valve is connected with the lower end of the grouting pipe, and the grouting valve is connected with a slurry supply pipe of grouting equipment; S3, the grouting equipment, the exhaust valve and the grouting valve are started, curing agents are injected into the preserved hole, when the exhaust valve starts to overflow slurry, the exhaust valve is slowly closed, a pressure meter of the grouting equipment is observed, the pressure is maintained for a period of time according to the designed pressure requirement, the grouting valve is closed, and the grouting is completed. The difficult construction problem for sealing and blocking the preserved hole at the inner side of an underwater sink pipe is solved, and the construction safety risk is reduced.
Description
Technical field
The present invention relates to field of civil engineering, particularly relate to a kind of method of the sealing of falling pressure type slip casting shutoff reserving hole.
Background technology
In immersed tube tunnel work progress, after immersed tube implantation completes, generally need carry out shutoff to the reserving hole on construction period tunnel roof under water.Carry out this passage when carrying out shutoff, take the lower port welding underseal closure plate in tunnel more, then outside tunnel, carry out underwater concreting, to complete shutoff.But this kind of shutoff mode is because relating to underwater concreting, security risk is comparatively large, and shutoff difficult quality ensures.Meanwhile, the shutoff mode of prior art generally adopts the mode of building from top to bottom, and plugging construction is carried out in the inner side that cannot realize immersed tube under water.
Summary of the invention
(1) technical problem that will solve
The object of this invention is to provide a kind of method of the sealing of falling pressure type slip casting shutoff reserving hole, solve the construction difficult problem to reserving hole shutoff under water inside immersed tube under water, and reduce construction safety risk and hidden danger of quality.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of method of the sealing of falling pressure type slip casting shutoff reserving hole, comprising 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, stack is inserted in steam vent by lower from Shangdi, and make the upper end of stack near the soffit of closedtop closure plate, an outlet valve is connected in the lower end of stack, 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, outlet valve and grouting valve, in reserving hole, injects curing compound, when outlet valve starts to overflow slurry, slowly closing outlet valve, observes the pressure meter 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 comprise step S4, to be solidified dose reach intensity after, cut away and outer be exposed at Grouting Pipe outside bottom seal plate and stack, adopt steel plate by injected hole and steam vent welding shutoff.
Wherein, before described step S1, also comprise step S01, manufacture under water immersed tube time, around the upper end of reserving hole preset closedtop block up substrate, around the lower end of reserving hole preset bottom seal substrate.
Wherein, described step S1 comprises, and adopts bolt that closedtop closure plate and closedtop are blocked up substrate and is connected, and 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 shutoff reserving hole provided by the invention, between the top and bottom of reserving hole, plugging plate is set, by the inner side upwards slip casting of falling means of press seals of grouting equipment immersed tube under water, solve the construction difficult problem to reserving hole shutoff 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 shutoff 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: stack; 5: Grouting Pipe; 6: grouting valve; 7: outlet 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 for illustration of the present invention, but is not used for limiting the scope of the invention.
With reference to shown in Fig. 1, the method for the sealing of falling pressure type slip casting shutoff reserving hole of the present invention, comprises the following steps:
S01: manufacture under water immersed tube 1 time, around the upper end of reserving hole 101 preset closedtop block up substrate 11, around the lower end of reserving hole 101 preset bottom seal substrate 12.Closedtop blocks up substrate 11 and bottom seal substrate 12 is doughnut-shaped steel plate structure, and wherein, the internal diameter that closedtop blocks up substrate 11 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, carries out shutoff to the two ends of reserving hole 101.Wherein, injected hole 9 and steam vent 10 is offered at underseal closure plate 3.Concrete, under water after immersed tube 1 implantation, adopt bolt that closedtop closure plate 2 and closedtop are blocked up substrate 11 and be connected, adopt welding to be connected with bottom seal substrate 12 by underseal closure plate 3.
S2, stack 4 is inserted in steam vent 10 by lower from Shangdi, and make the upper end of stack 4 near the soffit of closedtop closure plate 2, an outlet valve 7 is connected in the lower end of stack 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, stack 4 is inserted in steam vent 10, and stack 4 and steam vent 10 are adopted is welded to connect, the gap between elimination steam vent 10 and stack 4.The upper end of Grouting Pipe 5 and steam vent 9 are welded to connect.
S3, opens grouting equipment, outlet valve 7 and grouting valve 6, in reserving hole 101, injects curing compound, when outlet valve 7 starts to overflow slurry, slowly closing outlet valve 7, observes the pressure meter 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 and outer be exposed at Grouting Pipe 5 outside bottom seal plate 3 and stack 4, adopt steel plate that injected hole 9 and steam vent 10 are welded shutoff.
Wherein, curing compound described above is cement paste 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 be carried out after shutoff, also can before shutoff.Grouting Pipe be set at injected hole and/or also can complete before underseal closure plate is welded on bottom seal substrate in the operating procedure that steam vent arranges stack, dropping within protection scope of the present invention even if those skilled in the art adopt this kind of operating sequence also to will be understood that.The method of the sealing of falling pressure type slip casting shutoff reserving hole of the present invention may be used for constructing by land equally, is not limited to subaqueous construction.
Use the method for the sealing of falling pressure type slip casting shutoff reserving hole of the present invention, between the top and bottom of reserving hole, plugging plate is set, by the inner side upwards slip casting of falling means of press seals of grouting equipment immersed tube under water, solve the construction difficult problem to reserving hole shutoff under water outside immersed tube under water, and reduce construction safety risk and hidden danger of quality.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a method for the sealing of falling pressure type slip casting shutoff reserving hole, is characterized 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, stack is inserted in steam vent by lower from Shangdi, and make the upper end of stack near the soffit of closedtop closure plate, an outlet valve is connected in the lower end of stack, 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, outlet valve and grouting valve, in reserving hole, injects curing compound, when outlet valve starts to overflow slurry, slowly closing outlet valve, observes the pressure meter of grouting equipment, after holding pressure a period of time according to the pressure requirements of design, close grouting valve, complete slip casting.
2. the method for the sealing of falling pressure type slip casting shutoff reserving hole as claimed in claim 1, it is characterized in that, also comprise step S4, to be solidified dose reach intensity after, be exposed at the Grouting Pipe outside bottom seal plate and stack outside cutting away, adopt steel plate by injected hole and steam vent welding shutoff.
3. the method for the sealing of falling pressure type slip casting shutoff reserving hole as claimed in claim 1, it is characterized in that, before described step S1, also comprise step S01, manufacture under water immersed tube time, around the upper end of reserving hole, preset closedtop block up substrate, around the lower end of reserving hole, preset bottom seal substrate.
4. the method for the sealing of falling pressure type slip casting shutoff reserving hole as claimed in claim 3, it is characterized in that, described step S1 comprises, and adopts bolt that closedtop closure plate and closedtop are blocked up substrate and is connected, and 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104674817A true CN104674817A (en) | 2015-06-03 |
| CN104674817B CN104674817B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510081907.XA Active 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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Cited By (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 |
| CN113653355A (en) * | 2021-08-03 | 2021-11-16 | 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)
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|---|---|---|---|---|
| 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 |
Cited By (5)
| 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 |
| CN113653355A (en) * | 2021-08-03 | 2021-11-16 | 中国十七冶集团有限公司 | Construction method for plugging reserved hole of lower laminate of closed space |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104674817B (en) | 2016-06-29 |
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