CN102041810B - Construction method for pouring dam foundation concrete in zone with centralized water gushing - Google Patents
Construction method for pouring dam foundation concrete in zone with centralized water gushing Download PDFInfo
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- CN102041810B CN102041810B CN2010106195522A CN201010619552A CN102041810B CN 102041810 B CN102041810 B CN 102041810B CN 2010106195522 A CN2010106195522 A CN 2010106195522A CN 201010619552 A CN201010619552 A CN 201010619552A CN 102041810 B CN102041810 B CN 102041810B
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Abstract
The invention relates to a construction method for pouring dam foundation concrete in a zone with centralized water gushing. The technical problem to be solved by the invention is to provide the construction method for pouring the dam foundation concrete in the zone with the centralized water gushing, which has the advantages of low investment, simpleness in process and effectiveness, and aims at ensuring the strength and quality of the foundation concrete. The technical scheme for solving the problem is as follows: leveling a foundation around a centralized water gushing point; covering a grouting box on the water gushing point; then connecting two steel pipes on the top part of the grouting box; pouring the dam foundation concrete, and simultaneously utilizing the steel pipes for water pumping till the final setting of the concrete; and finally utilizing the steel pipes to carrying out grouting treatment on the centralized water gushing point in the grouting box. The construction method is applicable to water conservancy and hydropower engineering.
Description
Technical field
The present invention relates to a kind ofly build dam foundation Concrete Construction method, be applicable to Hydraulic and Hydro-Power Engineering in concentrated water burst area.
Background technology
In Hydraulic and Hydro-Power Engineering, owing to the geological defects reason, Dam Base Surface tends to exist concentrated issue; In concreting; Concrete receives the influence of water burst near the issue, and cement paste is diluted, causes concrete water-cement ratio to change; Concrete quality is difficult to guarantee that intensity does not often reach designing requirement.
Summary of the invention
The technical problem that the present invention will solve is: to the problems referred to above, a kind of reduced investment is provided, technology is easy, effective builds dam foundation Concrete Construction method in concentrated water burst area, is intended to guarantee the intensity and the quality of base concrete.
The technical scheme that the present invention adopted is: a kind ofly build dam foundation Concrete Construction method in concentrated water burst area, it is characterized in that may further comprise the steps:
A, when building the dam foundation concrete, earlier with the basis leveling that has on the dam foundation face around the concentrated issue;
B, concentrate issue on grout box and fixing on the face shield, grout box closely contacts to close this concentrated issue with basement rock all around;
C, at the top of grout box two steel pipes are set vertically, steel pipe and grout box internal communication;
D, build the dam foundation concrete, utilize said steel pipe to draw water simultaneously until concrete final set;
E, treat that said dam foundation concreting finishes and reaches design strength after, utilize steel pipe and grout box that the concentrated issue in the grout box is carried out grouting treatment again.
The invention has the beneficial effects as follows: when issue is concentrated in the basis existence,, can eliminate the influence of water burst, reduce engineering defect, both save the expense of post-processed, help engineering safety again base concrete through application of the present invention.
Description of drawings
Fig. 1 is the layout plan of the embodiment of the invention.
Fig. 2 is the sectional view of the embodiment of the invention.
The specific embodiment
Like Fig. 1, shown in Figure 2, in this example, on Dam Base Surface, exist and concentrate issue 1.If directly at this foundation plane top-pour underpin concrete; Near the issue concrete just can receive the influence of water burst so; Cause cement paste diluted, concrete water-cement ratio changes, thereby influences the quality of base concrete; Make concrete not reach required intensity, and then influence engineering safety.
For this reason, with reference to Fig. 1, shown in Figure 2, when present embodiment is built the dam foundation concrete in concentrated water burst area, adopted following job practices:
A, at first with the basis leveling that has on the dam foundation face around the concentrated issue 1;
B, on face shield on the above-mentioned concentrated issue 1 grout box 2 and fixing, grout box 2 and basement rock all around be tight to be contacted closing concentrated issue, thereby water burst is collected in the grout box 2;
C, connect two vertical steel pipes of arranging 4 at the top of grout box 2, and steel pipe 4 and grout box 2 internal communication;
D, build dam foundation concrete 3, utilize steel pipe 4 to draw water (promptly extracting the water burst in the grout box) simultaneously until concrete final set;
E, treat dam foundation concrete 3 build finish and reach design strength after, utilize steel pipe 4 and concentrated issue 1 in 2 pairs of grout boxs of grout box to carry out grouting treatment again.On the one hand can carry out shutoff, on the other hand, can further strengthen near the quality of concrete and foundation plane the contact surface issue through grouting issue.
Claims (1)
1. build dam foundation Concrete Construction method in concentrated water burst area for one kind, it is characterized in that may further comprise the steps:
A, when building dam foundation concrete (3), earlier with concentrated issue (1) basis leveling is on every side arranged on the dam foundation face;
B, concentrating on the last face shield of issue (1) grout box (2) and fixing, grout box closely contacts to close this concentrated issue with basement rock all around;
C, at the top of grout box (2) two steel pipes (4) are set vertically, steel pipe and grout box (2) internal communication;
D, build dam foundation concrete (3), utilize said steel pipe (4) to draw water simultaneously until concrete final set;
E, treat said dam foundation concrete (3) build finish and reach design strength after, utilize steel pipe (4) and grout box (2) that the concentrated issue (1) in the grout box is carried out grouting treatment again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106195522A CN102041810B (en) | 2010-12-22 | 2010-12-22 | Construction method for pouring dam foundation concrete in zone with centralized water gushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106195522A CN102041810B (en) | 2010-12-22 | 2010-12-22 | Construction method for pouring dam foundation concrete in zone with centralized water gushing |
Publications (2)
| Publication Number | Publication Date |
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| CN102041810A CN102041810A (en) | 2011-05-04 |
| CN102041810B true CN102041810B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106195522A Active CN102041810B (en) | 2010-12-22 | 2010-12-22 | Construction method for pouring dam foundation concrete in zone with centralized water gushing |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452827B (en) * | 2014-10-16 | 2016-06-29 | 中国电建集团华东勘测设计研究院有限公司 | A kind of processing method at Concrete Dam spring |
| CN106930294A (en) * | 2017-04-26 | 2017-07-07 | 辽宁有色基础工程公司 | A kind of bedrock fracture artesian area grouting method |
| CN108018864A (en) * | 2017-11-13 | 2018-05-11 | 广东水电二局股份有限公司 | A kind of bedrock surface construction method that can dredge subsurface pressure water burst |
| CN108222043B (en) * | 2018-01-19 | 2020-05-05 | 青岛业高建设工程有限公司 | Curtain sand gushing treatment method and curtain sand gushing treatment pipe |
| CN108951672A (en) * | 2018-08-02 | 2018-12-07 | 中国铁建港航局集团有限公司 | A kind of structure of voltage regulation that catchments for grouting construction |
| CN108999195B (en) * | 2018-08-22 | 2019-10-29 | 山东大学 | It is a kind of block the larger water burst of deep-foundation side wall stratum in the safe grouting construction process of step heap weir formula |
| CN109339086B (en) * | 2018-10-17 | 2021-01-19 | 中国一冶集团有限公司 | Concrete underwater bottom sealing cover for piping and using method |
| CN110747873A (en) * | 2019-11-22 | 2020-02-04 | 上海宝冶集团有限公司 | Device for sealing post-pouring strip piping and construction method |
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| CN1385585A (en) * | 2002-06-26 | 2002-12-18 | 王衡 | Dry method for stopping water leakage |
| CN101526003A (en) * | 2009-03-23 | 2009-09-09 | 中国水电顾问集团华东勘测设计研究院 | Method for blocking up and treating high pressure large-flow stable underground water burst |
| CN101550701A (en) * | 2009-04-30 | 2009-10-07 | 中冶实久建设有限公司 | Method and device for treating partial water burst of foundation ditch |
| CN201406688Y (en) * | 2009-04-30 | 2010-02-17 | 中冶实久建设有限公司 | Water gathering cover for treating partial water inrush of foundation pit |
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2010
- 2010-12-22 CN CN2010106195522A patent/CN102041810B/en active Active
Patent Citations (4)
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| CN1385585A (en) * | 2002-06-26 | 2002-12-18 | 王衡 | Dry method for stopping water leakage |
| CN101526003A (en) * | 2009-03-23 | 2009-09-09 | 中国水电顾问集团华东勘测设计研究院 | Method for blocking up and treating high pressure large-flow stable underground water burst |
| CN101550701A (en) * | 2009-04-30 | 2009-10-07 | 中冶实久建设有限公司 | Method and device for treating partial water burst of foundation ditch |
| CN201406688Y (en) * | 2009-04-30 | 2010-02-17 | 中冶实久建设有限公司 | Water gathering cover for treating partial water inrush of foundation pit |
Non-Patent Citations (2)
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| CN102041810A (en) | 2011-05-04 |
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