CN201459733U - Dam body curtain grouting hole mouth sealer - Google Patents
Dam body curtain grouting hole mouth sealer Download PDFInfo
- Publication number
- CN201459733U CN201459733U CN2009200938882U CN200920093888U CN201459733U CN 201459733 U CN201459733 U CN 201459733U CN 2009200938882 U CN2009200938882 U CN 2009200938882U CN 200920093888 U CN200920093888 U CN 200920093888U CN 201459733 U CN201459733 U CN 201459733U
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- CN
- China
- Prior art keywords
- grouting
- cylinder body
- sealer
- hole
- hole mouth
- 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.)
- Expired - Lifetime
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Abstract
A dam body curtain grouting hole mouth sealer belongs to the technical field of water conservation and hydropower engineering equipment, and is characterized in that a gland at the front end of the sealer is fixedly connected with a barrel-shaped outer cylinder body through an expansion grout stopping sealing ring and an inner gasket, the rear end of the cylinder body is fixed with a flange plate, the rear portion of the cylinder body is equipped with a grout return hole, a grout injecting pipe penetrates into the cylinder body, and the rear end of the cylinder body is sealed with the outer wall of the grout injecting pipe. The dam body curtain grouting hole mouth sealer has the advantages that the dam body curtain grouting hole mouth sealer utilizes a 'hole mouth sealing type' grouting method, resolves problems of hole inside accidents which are easy to be caused, and simultaneously has the advantages each grouting section of the whole hole can repeatedly achieve the highest value of designed grouting pressure, thereby greatly increasing grouting construction quality.
Description
Technical field
The utility model belongs to water conservancy, hydroelectric project equipment technical field.
Background technology
The curtain grouting construction is Hydraulic and Hydro-Power Engineering building rock foundation or hydraulic structure entity antiseepage basic measures.Aperture closure grouting technology belongs to a kind of in the grouting construction worker method from top to bottom, its advantage is curtain grouting constructing operation and the bad ground grouting construction that is fit to deep hole (more than the 30m), small-bore, underflow, high pressure, can accomplish grout compartment is repeated grouting, thereby help grouting quality; And grouting remove the packer mechanization degree than higher, also can reduce labor intensity of operating personnel.
After dam built up, problems such as dam body seepage, globality, spillwag chute frost heave often existed.For reaching the standard that grouting back dam body permeability rate is not more than 0.15Lu, require meticulous curtain grouting to handle construction technology.Implementing to follow plug from top to bottom or move back plug curtain grouting from bottom to top, is to be difficult to realization with prior art and material technology, also can't avoid drilling accidents such as casting is filled in, the interior pipe of casting grouting, thereby have influence on grouting quality.
Summary of the invention
The purpose of this utility model is: a kind of dam dam body curtain grouting aperture sealer is provided, it realized circulation in the hole, from top to bottom, the needs of underflow grouting.
The technical solution of the utility model is: the gland of sealer front end is only starched sealing ring and internal gasket and tubular outer cylinder body by expanding and is connected and fixed, the rear end and the flange of cylinder body are fixed, have the overfall hole at the rear portion of cylinder body, be installed with Grouting Pipe in cylinder body, the rear end of cylinder body and Grouting Pipe outer wall are airtight.
The beneficial effects of the utility model are: by aperture closure grouting test and construction, also grout hole section grouting pressure has been promoted 0.2MPa on the working drawing design basis; There is Engineering Projects to prove that maximum grouting pressure can reach the 400m hydrostatic head pressure.This explanation aperture sealer can be realized big pressure construction, and high standard is in the milk ending standard and drilling accident is not taken place.
Adopt " aperture is closed " grouting method, remove the drilling accident problem while that has solved above-mentioned easy appearance, the advantage that has both is the peak that each grout compartment of full hole can both repeat to reach the design grouting pressure, increases substantially the grouting construction quality.
Special aperture sealer can be reused, and reduces the material cost of device own.The construction purpose of dam dam body curtain grouting can realize by sealer hole, aperture internal-circulation type grouting process; The selection of aperture closing process is not subjected to the restriction of hole depth and slurries parameter.
Description of drawings
Fig. 1 is the utility model structure sectional view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in the figure, the 1st, gland, the 2nd expands and only starches sealing ring, the 3rd, internal gasket, the 4th, cylinder body, the 5th, flange, the 6th, overfall hole, the 7th, Grouting Pipe.
Claims (1)
1. dam dam body curtain grouting aperture sealer, it is characterized in that: the gland of sealer front end is only starched sealing ring and internal gasket and tubular outer cylinder body by expanding and is connected and fixed, the rear end and the flange of cylinder body are fixed, have the overfall hole at the rear portion of cylinder body, be installed with Grouting Pipe in cylinder body, the rear end of cylinder body and Grouting Pipe outer wall are airtight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200938882U CN201459733U (en) | 2009-06-26 | 2009-06-26 | Dam body curtain grouting hole mouth sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200938882U CN201459733U (en) | 2009-06-26 | 2009-06-26 | Dam body curtain grouting hole mouth sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201459733U true CN201459733U (en) | 2010-05-12 |
Family
ID=42387086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200938882U Expired - Lifetime CN201459733U (en) | 2009-06-26 | 2009-06-26 | Dam body curtain grouting hole mouth sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201459733U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041814A (en) * | 2010-12-31 | 2011-05-04 | 郭红军 | Novel composite pile (ground) foundation and application method thereof |
| CN102182191A (en) * | 2011-04-19 | 2011-09-14 | 中水东北勘测设计研究有限责任公司 | Impermeable choking and grouting method for rock plug truncated cone shell in deepwater |
| CN102877861A (en) * | 2012-10-17 | 2013-01-16 | 中国水利水电第六工程局有限公司 | Orifice closing device applied to advance slurry grouting at water gushing section of underground grotto |
| CN109208580A (en) * | 2018-10-26 | 2019-01-15 | 中国电建集团中南勘测设计研究院有限公司 | A kind of orifice closure and bore filling device |
-
2009
- 2009-06-26 CN CN2009200938882U patent/CN201459733U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041814A (en) * | 2010-12-31 | 2011-05-04 | 郭红军 | Novel composite pile (ground) foundation and application method thereof |
| CN102182191A (en) * | 2011-04-19 | 2011-09-14 | 中水东北勘测设计研究有限责任公司 | Impermeable choking and grouting method for rock plug truncated cone shell in deepwater |
| CN102182191B (en) * | 2011-04-19 | 2013-03-20 | 中水东北勘测设计研究有限责任公司 | Impermeable choking and grouting method for rock plug truncated cone shell in deepwater |
| CN102877861A (en) * | 2012-10-17 | 2013-01-16 | 中国水利水电第六工程局有限公司 | Orifice closing device applied to advance slurry grouting at water gushing section of underground grotto |
| CN109208580A (en) * | 2018-10-26 | 2019-01-15 | 中国电建集团中南勘测设计研究院有限公司 | A kind of orifice closure and bore filling device |
| CN109208580B (en) * | 2018-10-26 | 2023-11-07 | 中国电建集团中南勘测设计研究院有限公司 | Orifice sealer and drill irrigation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |