CN207419412U - A kind of metal spiral case steel lining bottom surface grouting arrangement - Google Patents
A kind of metal spiral case steel lining bottom surface grouting arrangement Download PDFInfo
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- CN207419412U CN207419412U CN201721248966.2U CN201721248966U CN207419412U CN 207419412 U CN207419412 U CN 207419412U CN 201721248966 U CN201721248966 U CN 201721248966U CN 207419412 U CN207419412 U CN 207419412U
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- spiral case
- steel lining
- pipe
- metal spiral
- grout pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model provides a kind of metal spiral case steel lining bottom surface grouting arrangement, including metal spiral case steel lining, grout pipe, the exposed connector of grout pipe, grouting pipe carrier and structure lines；The grout pipe is fixed on the bottom of metal spiral case steel lining by the pipe carrier that is in the milk, and is poured in the outside of metal spiral case steel lining, grout pipe and is inoculated with spiral case external wrapping concrete, and the exposed connector of grout pipe is arranged on one end of grout pipe, outside the structure lines of spiral case external wrapping concrete.The utility model built-in pipe quantity is few, and engineering cost is saved, and construction technology is simple, less to construction interference, can accelerate construction progress, improve the effect and quality of surface grouting, have apparent project benefit.
Description
Technical field
The utility model is related to a kind of metal spiral case steel lining bottom surface grouting arrangements, belong to hydraulic and hydroelectric engineering knot
Structure design field.
Background technology
From the point of view of current domestic average advanced construction level and most case histories, in Hydropower Unit metal spiral case steel
It serves as a contrast in concrete construction, can generate phenomenon of coming to nothing after the concrete setting contraction of steel lining bottom, be completed 60 days in concreting
Afterwards, checked through tapping, phenomenon is come to nothing still more generally in steel lining bottom, and comes to nothing region area also not existing more than 0.5~1.02m
Minority, it is necessary to carry out the surface grouting of steel lining bottom from the point of view of steel liner structure safety is ensured.
Spiral case steel lining contact grouting design at present usually has following several ways：
(1) later stage is drilled with surface grouting hole method：In view of the identical property of preformed hole is poor in aforesaid way, many engineering choosings
Later stage well cementing is selected, is useful in low-alloy steel (standard pull tension intensity is less than 540N/mm 2).Steel lining outer wall fill concrete
After completing 60 days, by tapping or other means check that bottom plate comes to nothing position, is drilled on steel lining using magnetic support electric drill into slurry
Hole and gas vent, aperture are not less than 12mm, then carry out surface grouting.Although which can be targetedly to region of coming to nothing
It is in the milk, but when quantity of coming to nothing is more, perforate, sealing of hole quantity are still more, and equally there is also steel plate borehole sealings to ooze
Bore diameter when steel plate thickness is more than 30mm, is usually enlarged to 20~24mm by the risk of leakage, to realize that surface grouting is made
Industry, but construction still acquires a certain degree of difficulty, and steel plate thickness is bigger, borehole sealing difficulty also increases.In addition, when bore diameter is larger
When, there is certain weakening in itself to steel lining, and stiffening plate can not be set, therefore it is unfavorable to structure.
(2) pre-buried surface grouting pipe method 1：Which along steel lining bottom plate every the pre-buried grout box of 2.0~3.0m, and
2~3 grout boxs are connected on a grout pipe, grout pipe is drawn outside fill concrete lift surface.Due to surface grouting
It needs that concretings is waited could to carry out after completing 60 days, for guarantee construction speed, the surface grouting built-in pipe quantity of extraction is more,
Pipeline section is long, larger to construction interference, also uneconomical, and grouting effect is bad.
(3) pre-buried surface grouting pipe method 2：" E " which is made up of the inlet pipe, three-way pipe and connecting tube of setting
Shape structure, traditional pre-buried grout cell is replaced using inflation tube drawing, and traditional point contact is become line contact, contact is expanded and fills
The pulp contact area of slurry overcomes grout cell and is easily damaged the shortcomings that blocking, and steel lining is close in the outlet of connecting tube
Bottom, so as to improve the construction quality of steel lining bottom surface grouting.But this method is complicated, and difficulty of construction is big, and contact fills
It is more to starch built-in pipe quantity, deficiency in economic performance.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of metal spiral case steel lining bottom surface grouting arrangement knot
Structure, the metal spiral case steel lining bottom surface grouting arrangement by with the prompt special pipe of new grout pipe, propose it is a kind of it is convenient,
The high powerhouse of hydropower station metal spiral case steel lining bottom surface grouting arrangement of safe and reliable degree.
The utility model is achieved by the following technical programs.
A kind of metal spiral case steel lining bottom surface grouting arrangement provided by the utility model, including metal spiral case steel
The exposed connector of lining, grout pipe, grout pipe, grouting pipe carrier and structure lines；The grout pipe is fixed on gold by the pipe carrier that is in the milk
Belong to the bottom of spiral case steel lining, poured in the outside of metal spiral case steel lining, grout pipe and be inoculated with spiral case external wrapping concrete, grout pipe is exposed to be connect
Head is arranged on one end of grout pipe, outside the structure lines of spiral case external wrapping concrete.
The grout pipe has multiple, " U "-shaped structure.
The grouting pipe carrier is by arc tube seat with support bar group into supporting rod is located at the lower section of arc tube seat.
One end that the supporting rod goes out with curved pipe geosynclinal convex is welded and fixed.
The exposed connector of grout pipe is located at the 20cm of spiral case external wrapping concrete.
The exposed connector of grout pipe is closed with geotextiles.
The beneficial effects of the utility model are：Built-in pipe quantity is few, and engineering cost is saved, and construction technology is simple, to applying
Work interference is less, can accelerate construction progress, improve the effect and quality of surface grouting, has apparent project benefit.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the floor map of the utility model；
Fig. 3 is the enlarged drawing of the utility model grouting pipe carrier；
In figure：1- metal spiral case steel linings, 2- grout pipes, 3- spiral case external wrapping concretes, the exposed connector of 4- grout pipes, 5- grouting
Pipe carrier, 51- arc tube seats, 52- supporting rods, 6- structure lines.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
As shown in Figure 1, a kind of metal spiral case steel lining bottom surface grouting arrangement, including metal spiral case steel lining 1, grouting
The exposed connector 4 of pipe 2, grout pipe, grouting pipe carrier 5 and structure lines 6；The grout pipe 2 is fixed on metal by the pipe carrier 5 that is in the milk
The bottom of spiral case steel lining 1 pours in the outside of metal spiral case steel lining 1, grout pipe 2 and is inoculated with spiral case external wrapping concrete 3, and grout pipe is exposed
Connector 4 is arranged on one end of grout pipe 2, outside the structure lines 6 of spiral case external wrapping concrete 3.
The grout pipe 2 has multiple, " U "-shaped structure, as shown in Figure 2.
The grouting pipe carrier 5 is made of arc tube seat 51 and supporting rod 52, and supporting rod 52 is located under arc tube seat 51
Side；One end that the supporting rod 52 is protruded with arc tube seat 51 is welded and fixed, and recess is convenient for fixed grout pipe 2, increase
Contact area, as shown in Figure 3.
The exposed connector 4 of grout pipe is located at the 20cm of spiral case external wrapping concrete 3.
The exposed connector 4 of grout pipe is closed with geotextiles.
The construction procedure of the utility model is as follows：
The first step, installation metal spiral case steel lining 1；
" u "-shaped grout pipe 2 after the completion of the first step, is mounted on the bottom of metal spiral case steel lining 1 by second step, and by being in the milk
Pipe carrier 5 is supported on the bottom of metal spiral case steel lining 1；
3rd step leads to grout pipe exposed connector 4 at the 6 outer 20cm of structure lines of spiral case external wrapping concrete 3, to grout pipe
Exposed connector 4 is closed with geotextiles, prevents the sundries such as concrete bits from falling into grout hole.
4th step pours spiral case external wrapping concrete 3.
5th step, during grouting, from one end nozzle of the exposed connector 4 of the grout pipe of extraction into slurry, other end nozzle pulp reaches
Strengthening motoring requirement to design can stop.
Claims (6)
1. a kind of metal spiral case steel lining bottom surface grouting arrangement, including metal spiral case steel lining (1), grout pipe (2), grouting
Manage exposed connector (4), grouting pipe carrier (5) and structure lines (6), it is characterised in that：The grout pipe (2) passes through the pipe carrier that is in the milk
(5) bottom of metal spiral case steel lining (1) is fixed on, pours and is inoculated with outside spiral case in the outside of metal spiral case steel lining (1), grout pipe (2)
Bag concrete (3), the exposed connector of grout pipe (4) are arranged on one end of grout pipe (2), the knot positioned at spiral case external wrapping concrete (3)
Structure line (6) is outside.
2. surface grouting arrangement in metal spiral case steel lining bottom as described in claim 1, it is characterised in that：The grout pipe
(2) there is multiple, " U "-shaped structure.
3. surface grouting arrangement in metal spiral case steel lining bottom as described in claim 1, it is characterised in that：The grout pipe
Bracket (5) is made of arc tube seat (51) and supporting rod (52), and supporting rod (52) is located at the lower section of arc tube seat (51).
4. surface grouting arrangement in metal spiral case steel lining bottom as claimed in claim 3, it is characterised in that：The supporting rod
(52) one end with arc tube seat (51) protrusion is welded and fixed.
5. surface grouting arrangement in metal spiral case steel lining bottom as described in claim 1, it is characterised in that：The grout pipe
Exposed connector (4) is located at the 20cm of spiral case external wrapping concrete (3).
6. surface grouting arrangement in metal spiral case steel lining bottom as described in claim 1, it is characterised in that：The grout pipe
Exposed connector (4) is closed with geotextiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248966.2U CN207419412U (en) | 2017-09-27 | 2017-09-27 | A kind of metal spiral case steel lining bottom surface grouting arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248966.2U CN207419412U (en) | 2017-09-27 | 2017-09-27 | A kind of metal spiral case steel lining bottom surface grouting arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207419412U true CN207419412U (en) | 2018-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721248966.2U Active CN207419412U (en) | 2017-09-27 | 2017-09-27 | A kind of metal spiral case steel lining bottom surface grouting arrangement |
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| CN (1) | CN207419412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997057A (en) * | 2020-08-19 | 2020-11-27 | 安徽金寨抽水蓄能有限公司 | Volute layer concrete horizontal casting construction method |
-
2017
- 2017-09-27 CN CN201721248966.2U patent/CN207419412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997057A (en) * | 2020-08-19 | 2020-11-27 | 安徽金寨抽水蓄能有限公司 | Volute layer concrete horizontal casting construction method |
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