CN204456127U - A kind of water burst hole section orifice tube - Google Patents
A kind of water burst hole section orifice tube Download PDFInfo
- Publication number
- CN204456127U CN204456127U CN201520120735.8U CN201520120735U CN204456127U CN 204456127 U CN204456127 U CN 204456127U CN 201520120735 U CN201520120735 U CN 201520120735U CN 204456127 U CN204456127 U CN 204456127U
- Authority
- CN
- China
- Prior art keywords
- grout stop
- orifice tube
- water burst
- wall
- hole section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
A kind of water burst hole section orifice tube, relates to the construction equipment in Hydraulic and Hydro-Power Engineering construction, the grouting facility especially in Hydraulic and Hydro-Power Engineering.It has body, its key technology is set with the first grout stop and the second grout stop at the upper and lower end of body stage casing outer wall, be wound around the rope made of hemp or cotton yarn at the first grout stop outer wall, the upper and lower end wall of body stage casing between the first grout stop and the second grout stop arranged respectively a circle first portals and second to portal.The beneficial effects of the utility model are: the utility model product need not holed in orifice tube side direction of holing specially separately, do not need to install grouting nozzle and plastic flexible pipe, are applicable to any direction (360 °) boring, and construction technique is simpler, more effectively.
Description
Technical field:
A kind of water burst hole section orifice tube, relates to the construction equipment in Hydraulic and Hydro-Power Engineering construction, the grouting facility especially in Hydraulic and Hydro-Power Engineering.
Background technology:
In Hydraulic and Hydro-Power Engineering is built, there is seepage after completing retaining in dam, seepage treatment is a difficult problem for whole hydropower industry.The means that seepage treatment adopts usually are grouting.Good and bad safety and the operation that directly may have influence on whole engineering of grouting quality.And in grouting construction process, there is the situation of large water burst, castingin orifice tube especially water power grouting industry a hang-up.Water burst hole section orifice tube imbedding process compares with conventional orifice tube imbedding process, and water burst hole section orifice tube imbedding process requires not only reliable in quality but also easy construction.A kind of orifice tube is had in prior art, need hole separately specially in orifice tube side direction of holing, during use, grouting nozzle and plastic flexible pipe need be installed, its complicated construction technique, and grouting nozzle and plastic flexible pipe are single use, also grouting nozzle and plastic flexible pipe to be disposed after having constructed, if deal with improperly, can impact environment.
Summary of the invention:
Problem to be solved in the utility model is exactly provide a kind of reliable in quality, easy construction, for the orifice tube of water burst hole section castingin for above deficiency.Its technical scheme is as follows:
It has body, its key technology is set with the first grout stop and the second grout stop at the upper and lower end of body stage casing outer wall, be wound around the rope made of hemp or cotton yarn at the first grout stop outer wall, the upper and lower end wall of body stage casing between the first grout stop and the second grout stop arranged respectively a circle first portals and second to portal.
Compared with prior art, the beneficial effect that the utility model has is:
1, the utility model product need not holed in orifice tube side direction of holing specially separately, does not need to install grouting nozzle and plastic flexible pipe, is applicable to any direction (360 °) boring, and construction technique is simpler, more effectively.
2, the utility model product is upper body stage casing outer wall, lower end is set with the first grout stop and the second grout stop, the rope made of hemp or cotton yarn is wound around at the first grout stop outer wall, upper in body stage casing between the first grout stop and the second grout stop, lower end wall is arranged respectively a circle first portals and second to portal, can bear high pressure (can normal mounting when aperture nature water burst pressure reaches 0.3MPa, after installation, the maximum pressure that bears can reach 4.0MPa, be applicable to be greater than 3.0MPa high pressure grouting), efficiently solve the difficult problem always perplexing castingin orifice tube under large water burst condition for many years.
3, slip casting does not need process grouting nozzle and plastic flexible pipe after completing, free from environmental pollution.
4, the orifice tube that this orifice tube is specially adapted under the large water burst condition in aperture that dam engineering 133m head difference causes is installed, and bears the curtain grouting pressure of 3.5MPa.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model grout stop structural representation.
Detailed description of the invention
See Fig. 1 and Fig. 2, the utility model has body 7, its key technology is set with the first grout stop 10 and the second grout stop 6 at the upper and lower end of body 7 stage casing outer wall, the rope made of hemp or cotton yarn 3 is wound around at the first grout stop 10 outer wall, its effect is the rope made of hemp or cotton yarn water-swellable, can bear design grouting pressure while good airtight grout stop lower end drilling hole in water burst; The upper and lower end wall of body 7 stage casing between the first grout stop 10 and the second grout stop 6 being arranged, a circle first portals respectively and 4 and second portals 5, for the spilling of slurries or water.
Described body 7 top is provided with mouth of pipe hoop 1.
The upper edge hole L of described first grout stop 10 to body 7
1distance be 30 ~ 35cm; The lower bead L of the second grout stop 6 to body 7
2distance be 30 ~ 35cm.
The described first upper edge hole L portalling 4 to body 7
3distance be 40 ~ 45cm; The second lower bead L portalling 5 to body 7
4distance be 40 ~ 45cm.
The embedding method of water burst hole of the present invention section orifice tube, comprises the following steps:
1) infiltration in grout hole 8 is caused the distance beyond the 10cm of aperture, guarantee that just filling also not solidified mortar between orifice tube and boring is not destroyed;
2) by grout hole 8 first paragraph, (grout hole first paragraph refers to: the degree of depth of starting at design or technical requirements from needing the bedrock surface of grouting surface, this degree of depth adds that the heavy thickness of the coagulation earth mulch of surface of bedrock upper end is necessarily greater than this body length of orifice tube, generally be decided to be first paragraph from surface of bedrock to downward-extension 2m scope (i.e. 0 ~ 2m)) to be in the milk by relevant grouting technique requirement, object avoids first paragraph part to occur leaking filling;
3) in grout hole 8, divide into orifice tube 9, mouth of pipe hoop 1 exposes aperture;
4) at the annular spaces part perfusion mortar 2 between orifice tube 9 outer wall and grout hole 8 at the first grout stop 10 place, by mortar vibration compacting, mortar is concordant with the aperture of grout hole 8;
5) after the mortar 2 final set 24h of perfusion, the cement paste of 0.5:1 is adopted to pour into through mouth of pipe hoop 1 pair of orifice tube 9; (cement paste that the weight of weight and 1 part of cement that the cement paste of 0.5:1 refers to employing 0.5 part of water is mixed with);
6) orifice tube 9 is airtight and treat solidifying 48h, and orifice tube castingin completes.
In the present embodiment, orifice tube adopts φ 73mm seamless steel pipe, and thickness is 5mm, length is 2m, and grout stop adopts the reinforcing bar of Ф 5mm.
Claims (4)
1. water burst hole section orifice tube (9), there is body (7), it is characterized in that being set with the first grout stop (10) and the second grout stop (6) at the upper and lower end of body (7) stage casing outer wall, be wound around the rope made of hemp or cotton yarn (3) at the first grout stop (10) outer wall, the upper and lower end wall that body (7) stage casing is positioned between the first grout stop (10) and the second grout stop (6) arranged respectively a circle first portals (4) and second portals (5).
2. water burst hole section orifice tube according to claim 1, is characterized in that being provided with mouth of pipe hoop (1) on body (7) top.
3. water burst hole section orifice tube according to claim 1, is characterized in that the upper edge hole L of the first grout stop (10) to body (7)
1distance be 30 ~ 35cm; Second grout stop (6) is to the lower bead L of body (7)
2distance be 30 ~ 35cm.
4. water burst hole section orifice tube according to claim 1, is characterized in that first portals (4) upper edge hole L to body (7)
3distance be 40 ~ 45cm; Second portals (5) lower bead L to body (7)
4distance be 40 ~ 45cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120735.8U CN204456127U (en) | 2015-02-17 | 2015-02-17 | A kind of water burst hole section orifice tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120735.8U CN204456127U (en) | 2015-02-17 | 2015-02-17 | A kind of water burst hole section orifice tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204456127U true CN204456127U (en) | 2015-07-08 |
Family
ID=53663036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520120735.8U Withdrawn - After Issue CN204456127U (en) | 2015-02-17 | 2015-02-17 | A kind of water burst hole section orifice tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204456127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674815A (en) * | 2015-02-17 | 2015-06-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | Water bursting hole section orifice pipe and orifice pipe insert casting method |
-
2015
- 2015-02-17 CN CN201520120735.8U patent/CN204456127U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674815A (en) * | 2015-02-17 | 2015-06-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | Water bursting hole section orifice pipe and orifice pipe insert casting method |
| CN104674815B (en) * | 2015-02-17 | 2016-08-17 | 中国水利水电第七工程局成都水电建设工程有限公司 | A kind of retention of excessive fluid hole section orifice tube and orifice tube embedding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |