CN109235391A - The surface grouting structure of diversion outlet closuring concrete - Google Patents
The surface grouting structure of diversion outlet closuring concrete Download PDFInfo
- Publication number
- CN109235391A CN109235391A CN201811296578.0A CN201811296578A CN109235391A CN 109235391 A CN109235391 A CN 109235391A CN 201811296578 A CN201811296578 A CN 201811296578A CN 109235391 A CN109235391 A CN 109235391A
- Authority
- CN
- China
- Prior art keywords
- grouting
- diversion outlet
- pipe
- concrete
- closuring
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- 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
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Disclosed by the invention is a kind of surface grouting structure of diversion outlet closuring concrete in hydraulic and hydroelectric engineering field, including the inlet pipe and return pipe arranged along bottom diversion outlet axial direction, and the more grouting supervisors along bottom diversion outlet circumferentially, grouting supervisor one end is connected with inlet pipe, the other end is connected with return pipe, the axis direction of the grouting supervisor is equipped with more grouting branch pipes, and the outlet end of the grouting branch pipe is connected with the grout box being arranged on bottom diversion outlet hole wall.The beneficial effects of the present invention are: passing through the grouting branch pipe of pre-buried inlet pipe, return pipe, grouting supervisor and contact, surface grouting effectively can be carried out because of the gap between hole wall that cooling meat is formed to diversion outlet closuring concrete, to improve the safety of structure of dam body and blocking concrete.
Description
Technical field
The present invention relates to hydraulic and hydroelectric engineering field more particularly to a kind of surface grouting knots of diversion outlet closuring concrete
Structure.
Background technique
In arched concrete dam process of construction, in order to which the construction time downstream supplies water needs, usually temporarily led in dam body setting
Flow bottom outlet.With the progress of engineering, bottom diversion outlet need to be sealed after completing corresponding function and task using concrete
It is stifled.Blocking concrete due to generating contraction in cooling procedure, it will gap is formed between dam body, influence arch dam it is whole by
Power state；Meanwhile diversion outlet closuring concrete be in water level hereinafter, if not to the gap between blocking concrete and dam body into
Row processing, it is unfavorable to come to dam structure safety belt.
Summary of the invention
To overcome existing bottom diversion outlet above shortcomings, technical problems to be solved by the invention during closure
Be: provide it is a kind of can be to the surface grouting structure that the gap between bottom diversion outlet and blocking concrete is filled.
The technical solution adopted by the present invention to solve the technical problems is:
The surface grouting structure of diversion outlet closuring concrete, including the inlet pipe arranged along bottom diversion outlet axial direction and
Return pipe and the more grouting supervisors along bottom diversion outlet circumferentially, grouting supervisor one end is connected with inlet pipe, another
End is connected with return pipe, and the axis direction of the grouting supervisor is equipped with more grouting branch pipes, the outlet end of the grouting branch pipe
It is connected with the grout box being arranged on bottom diversion outlet hole wall.
Further, the inlet pipe, return pipe, grouting supervisor and grouting branch pipe be divided into along bottom diversion outlet it is vertical in
Symmetrical two nested structure of left and right of the heart, wherein inlet pipe is located at bottom diversion outlet bottom, and return pipe is located at the top of bottom diversion outlet.
Further, two nested structure of left and right includes two inlet pipes, two inlet pipes are responsible for phase with grouting
Even.
Further, the grouting supervisor arranges one every 2~3m along inlet pipe axis direction.
Further, the grouting branch pipe arranges one every 1.5~2m along grouting supervisor's axis direction.
Further, being filled with expansion water-stop band between the both ends of blocking concrete and the hole wall of bottom diversion outlet.
Further, further including the exhaust pipe along bottom diversion outlet axis direction arrangement, the exhaust pipe is located at water conservancy diversion bottom
The top two sides in hole, and both ends each extend to outside bottom diversion outlet, and the exhaust pipe axial direction is equipped with more exhaust branch pipes
It is connected with the multiple grout boxs being mounted at the top of bottom diversion outlet.
Further, the exhaust branch pipe and corresponding grout box are along exhaust tube axis direction every 0.5~1m cloth
Set one.
Further, the inlet pipe and return pipe are embedded in blocking concrete, the grouting supervisor it is embedded or
The edge of blocking concrete is sticked on, the exhaust pipe is hung at the top of bottom diversion outlet by iron hook, and the grout box passes through spiral shell
Bolt or iron hook are fixed on bottom diversion outlet hole wall.
Further, the inlet pipe, return pipe, grouting supervisor, grouting branch pipe and exhaust pipe are pvc pipe or PE
Pipe, caliber are 30~40mm.
The beneficial effects of the present invention are: passing through the grouting branch of pre-buried inlet pipe, return pipe, grouting supervisor and contact
Pipe, effectively can carry out contact filling because of the gap between hole wall that cooling meat is formed to diversion outlet closuring concrete
Slurry, to improve the safety of structure of dam body and blocking concrete.
Detailed description of the invention
Fig. 1 is structure of the invention axial direction arrangement schematic diagram.
Fig. 2 is structure of the invention radial direction arrangement schematic diagram.
Label is 1- bottom diversion outlet, 2- inlet pipe, 3- return pipe, 4- grouting supervisor, 5- grouting branch pipe, 6- grouting in figure
Box, 7- blocking concrete, 8- expansion water-stop band, 9- exhaust pipe.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in Figure 1 and Figure 2, the surface grouting structure of diversion outlet closuring concrete of the invention, including along bottom diversion outlet
The inlet pipe 2 and return pipe 3 of 1 axial direction arrangement and the more grouting supervisors 4 along bottom diversion outlet 1 circumferentially, the filling
4 one end of slurry supervisor are connected with inlet pipe 2, and the other end is connected with return pipe 3, and the axis direction of the grouting supervisor 4 is equipped with more
The outlet end of root grouting branch pipe 5, the grouting branch pipe 5 is connected with the grout box 6 being arranged on 1 hole wall of bottom diversion outlet.Wherein into
The structure that pipe 2 can be blocked using one end into slurry, the other end is starched, it can also be using both ends simultaneously into the structure of slurry, return pipe 3
It equally can be open at one end or both ends to be all open.The grout box 6 is general can structure, and settable multiple holes are used thereon
In uniformly sprinkling concrete.
Use process of the invention is: this grouting structure is first arranged before blocking concrete 7 is constructed, to blocking concrete
7 constructions are completed and are in the milk again after completing cooling meat, and the preferable concrete of mobility is passed through from inlet pipe 2, then mixed
Solidifying soil enters each grouting supervisor 4, enters back into grouting branch pipe 5, finally sprays from grout box 6, to blocking concrete 7 and water conservancy diversion bottom
Gap between 1 hole wall of hole is filled.When gap all by Concrete Filled after, extra concrete can be flowed out from return pipe 3,
Reflux situation by observing return pipe 3 can determine whether grouting reaches requirement.Due to the concrete integral thickness that newly pours into compared with
Thin, cooling meat is negligible, and concrete is also simultaneously to inlet pipe 2, return pipe 3, grouting supervisor 4 and grouting branch pipe
5 are all filled, therefore can guarantee the stability and safety of entire 7 structure of blocking concrete.
It is most in wide 5m, high 10m or so since the aperture of bottom diversion outlet 1 is generally large, therefore in order to guarantee concrete energy
The steady flow on grouting supervisor 4 and grouting branch pipe 5, the inlet pipe 2, return pipe 3, grouting supervisor 4 and grouting branch pipe 5 is equal
It is divided into and symmetrically controls two nested structures along 1 vertical centerline of bottom diversion outlet, wherein inlet pipe 2 is located at 1 bottom of bottom diversion outlet, overfall
Pipe 3 is located at 1 top of bottom diversion outlet, not only ensure that the mobility of concrete in this way, but also concrete can be made from the bottom of bottom diversion outlet 1
Start to be irrigated filling upwards, ensure that the density of the concrete of perfusion.
Be possible to the case where local pipe blocking occur during concrete perfusion, in order to guarantee grouting it is smooth into
Row is respectively provided with two inlet pipes 2 in two nested structure of left and right, and two inlet pipes 2 are connected with grouting supervisor 4, wherein one
Root as spare, if in order to improve efficiency, can also be using two root canal roads simultaneously into slurry.
Since bottom diversion outlet 1 is general longer, and the pressure of filling concrete is limited, in order to keep the perfusion of concrete more equal
Even dispersion reduces injection pressure, grouting supervisor 4 is arranged one every 2~3m along 2 axis direction of inlet pipe, grouting
Branch pipe 5 along grouting supervisor 4 axis directions along every 1.5~2m arrange one, obtained by analysis with test, in this mode into
Row arrangement can obtain optimal perfusion effect.
Before grouting in order to guarantee concrete to the density of gap filling, can blocking concrete 7 both ends with lead
It flows and fills expansion water-stop band 8 between the hole wall of bottom outlet 1.The expansion after meeting water of expansion water-stop band 8, filling blocking concrete 7 with
The gap of hole wall is played the role of closing and is only starched, to improve the density of middle part concrete.
It further, further include the exhaust pipe 9 arranged along 1 axis direction of bottom diversion outlet, the exhaust pipe 9 is located at water conservancy diversion bottom
The top two sides in hole 1, and both ends each extend to outside bottom diversion outlet 1, and 9 axial direction of exhaust pipe is equipped with more exhaust branch
It manages and is connected with the multiple grout boxs 6 for being mounted on 1 top of bottom diversion outlet.The highest that bottom diversion outlet 1 should be arranged in grout box 6 as far as possible is high
At journey.In specific installation, the exhaust branch pipe and corresponding grout box 6 can be along 9 axis directions of exhaust pipe every 0.5~1m
Arrangement one.The purpose that exhaust pipe 9 is arranged in particular to is perfused to improve exhaust effect during concrete perfusion
Later period when, the gap between bottom diversion outlet 1 and concrete is smaller and smaller, and air can be increasingly difficult to drain, in the row of being provided with
After tracheae 9, air can carry out row into exhaust pipe 9 from top grout box 6 and lead, so that it is abundant to guarantee that concrete can carry out gap
Filling.After concrete is filled up completely gap, extra concrete can enter exhaust pipe 9 from grout box 6 under pressure
Exhaust pipe 9 is blocked, can also be filled in the later period from 9 both ends penetration concrete of exhaust pipe, guarantee blocking concrete 7 with
Bottom diversion outlet 1 is fully sealed.
In specific work progress, the inlet pipe 2 and return pipe 3 can be embedded in blocking concrete 7, it is described
Grouting supervisor 4 buries or sticks on the edge of blocking concrete 7, and the exhaust pipe 9 is hung by iron hook and pushed up in bottom diversion outlet 1
Portion, the grout box 6 are fixed on 1 hole wall of bottom diversion outlet by bolt or iron hook.It can guarantee the steady of entire grouting structure in this way
It is qualitative, it avoids occurring situations such as shaking, fracture in filling process, improves the stability of grouting.The inlet pipe 2, return pipe
3, grouting supervisor 4, grouting branch pipe 5 and exhaust pipe 9 are pvc pipe or PE pipe, and caliber is to be selected according to the actual situation,
Generally 30~40mm.
The present invention, can be effectively right by the grouting branch pipe of pre-buried inlet pipe, return pipe, grouting supervisor and contact
Diversion outlet closuring concrete because the gap between hole wall that cooling meat is formed carries out surface grouting, thus improve dam body and
The safety of structure of blocking concrete has good practicability and application prospect.
Claims (10)
1. the surface grouting structure of diversion outlet closuring concrete, it is characterized in that: including being arranged along bottom diversion outlet (1) axial direction
Inlet pipe (2) and return pipe (3) and more along the grouting of bottom diversion outlet (1) be circumferentially responsible for (4), the grouting is led
Pipe (4) one end is connected with inlet pipe (2), and the other end is connected with return pipe (3), sets on the axis direction of the grouting supervisor (4)
There are more grouting branch pipes (5), the outlet end of grouting branch pipe (5) and the grout box (6) being arranged on bottom diversion outlet (1) hole wall
It is connected.
2. the surface grouting structure of diversion outlet closuring concrete as described in claim 1, it is characterized in that: the inlet pipe
(2), return pipe (3), grouting supervisor (4) and grouting branch pipe (5) are divided into symmetrically controls along bottom diversion outlet (1) vertical centerline
Two nested structures, wherein inlet pipe (2) is located at bottom diversion outlet (1) bottom, and return pipe (3) is located at the top of bottom diversion outlet (1).
3. the surface grouting structure of diversion outlet closuring concrete as claimed in claim 2, it is characterized in that: two sets of the left and right
Structure includes two inlet pipes (2), and two inlet pipes (2) are connected with grouting supervisor (4).
4. the surface grouting structure of diversion outlet closuring concrete as described in claim 1, it is characterized in that: the grouting is responsible for
(4) one is arranged every 2~3m along inlet pipe (2) axis direction.
5. the surface grouting structure of diversion outlet closuring concrete as claimed in claim 4, it is characterized in that: the grouting branch pipe
(5) one is arranged every 1.5~2m along grouting supervisor's (4) axis direction.
6. the surface grouting structure of diversion outlet closuring concrete as described in claim 1, it is characterized in that: in blocking concrete
(7) expansion water-stop band (8) are filled between the hole wall at both ends and bottom diversion outlet (1).
7. the surface grouting structure of the diversion outlet closuring concrete as described in claim 1~6 any one claim,
It is characterized in: further includes the exhaust pipe (9) along bottom diversion outlet (1) axis direction arrangement, the exhaust pipe (9) is located at bottom diversion outlet
(1) top two sides, and both ends each extend to bottom diversion outlet (1) outside, and exhaust pipe (9) axial direction is equipped with more rows
Gas branch pipe is connected with the multiple grout boxs (6) being mounted at the top of bottom diversion outlet (1).
8. the surface grouting structure of diversion outlet closuring concrete as claimed in claim 7, it is characterized in that: the exhaust branch pipe
One is arranged every 0.5~1m along exhaust pipe (9) axis direction with corresponding grout box (6).
9. the surface grouting structure of diversion outlet closuring concrete as claimed in claim 7, it is characterized in that: the inlet pipe
(2) it is embedded in blocking concrete (7) with return pipe (3), the grouting supervisor (4) is embedded or sticks on blocking concrete
(7) edge, the exhaust pipe (9) are hung at the top of the bottom diversion outlet (1) by iron hook, the grout box (6) by bolt or
Iron hook is fixed on bottom diversion outlet (1) hole wall.
10. the surface grouting structure of diversion outlet closuring concrete as claimed in claim 7, it is characterized in that: the inlet pipe
(2), return pipe (3), grouting supervisor (4), grouting branch pipe (5) and exhaust pipe (9) are pvc pipe or PE pipe, caliber for 30~
40mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296578.0A CN109235391A (en) | 2018-11-01 | 2018-11-01 | The surface grouting structure of diversion outlet closuring concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296578.0A CN109235391A (en) | 2018-11-01 | 2018-11-01 | The surface grouting structure of diversion outlet closuring concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109235391A true CN109235391A (en) | 2019-01-18 |
Family
ID=65080165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811296578.0A Pending CN109235391A (en) | 2018-11-01 | 2018-11-01 | The surface grouting structure of diversion outlet closuring concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109235391A (en) |
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