CN210561999U - Dam large-depth water leakage rapid plugging grouting spray head - Google Patents
Dam large-depth water leakage rapid plugging grouting spray head Download PDFInfo
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- CN210561999U CN210561999U CN201920998051.6U CN201920998051U CN210561999U CN 210561999 U CN210561999 U CN 210561999U CN 201920998051 U CN201920998051 U CN 201920998051U CN 210561999 U CN210561999 U CN 210561999U
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Abstract
The utility model relates to a dam large-depth water leakage rapid grouting spray head, which comprises two grouting pipes and a spray head body connected with the lower parts of the grouting pipes; the upper part of each grouting pipe is provided with a switch; the sprayer body comprises a mixing chamber and a slurry outlet chamber, and a stirring piece is arranged in the mixing chamber; the lower part of the mixing chamber is connected with a pulp outlet chamber through a threaded pipe, the pulp outlet chamber is of a conical structure, and the lower part of the pulp outlet chamber is provided with a pulp discharge hole; the mixing chamber, the threaded pipe and the pulp outlet chamber are all communicated. The utility model discloses can realize the high polymer quick slip casting of the emergent speedily carrying out rescue work of high degree of depth, long distance dykes and dams seepage.
Description
Technical Field
The utility model relates to a hydraulic equipment repairs and consolidates technical field, concretely relates to quick shutoff slip casting shower nozzle of dykes and dams large-depth percolating water.
Background
The embankment engineering is an important foundation of a flood control system in China, the total length of built embankments is 41 kilometers, but the existing embankments in China are basically formed by heightening and thickening on the former foundation, the hidden dangers are many, the geological conditions are complex, the dangerous situations occur frequently in the flood season, and once the flood is caused, the influence is great. Therefore, the technology and the equipment level of the emergency rescue of the hidden danger of the dike in China are urgently needed to be improved. The results of investigation of examples of world embankment and dam (earth and rockfill dam) damage show that damage and wreck caused by permeation stability account for over 40% of the whole accident. When seepage occurs, soil particles in the stratum move along a seepage path under the action of seepage flow and are taken out from a piping opening, so that the local range of the stratum is hollowed by water, and if the soil particles are allowed to develop, the embankment is burst.
The prior embankment danger-removing reinforcing technology is vertical seepage-proofing reinforcing technology comprising grouting seepage-proofing reinforcing technology and seepage-proofing wall reinforcing technology. However, in the actual engineering application process, the defects and some limitations of the dam seepage prevention technologies in different degrees are found, and the general problems of long construction period, low efficiency, large disturbance or damage to a dam body, high manufacturing cost and insufficient effect and durability exist. Therefore, in the face of the serious safety situation of the dam in China, the development of a novel and efficient dam danger removal reinforcement technology is accelerated, a novel rapid and effective systematization technology is formed, and the dam safety protection device has important social and economic values for ensuring the safe operation of the dam, protecting the life and property safety of people and ensuring the important achievement of economic construction in China. Based on this the utility model discloses the people sets out from flexible prevention of seepage theory, has proposed to use anhydrous reaction high polymer slip casting material to construct the new method of dykes and dams prevention of seepage body as the basis, utility model has realized dykes and dams "wicresoft" restoration complete set technique and equipment. However, in the existing dam protection high polymer grouting technology, a novel anhydrous reaction type double-component high polymer grouting material is adopted, the material has a high reaction speed, can be quickly cured and expanded within dozens of seconds, can reach 90% of strength within 10 minutes, is injected into a grouting guide pipe after two high polymer components are mixed on the ground, and is injected into a target position through a grouting pipe, so that the purpose of blocking piping is achieved. However, due to the fast reaction time of the high polymer, when the depth of the dangerous position is too large, i.e. the length of the grouting conduit exceeds 20m, the high polymer will react and solidify inside the grouting conduit, and then the grouting conduit is blocked, so that the high polymer cannot reach a specific position to complete the rescue purpose. Therefore, when the depth of the position where the leakage dangerous case is located exceeds 20m from the ground, the high polymer grouting repair technology cannot meet the requirement of emergency rescue. At present, the proportion of ultrahigh dams in water conservancy facilities in China is getting larger, so that the research and development of high polymer grouting nozzles and grouting methods capable of coping with high-depth and long-distance emergency rescue are urgently needed.
Disclosure of Invention
The utility model discloses a solve the problem that current slip casting pipe overlength, dykes and dams restoration exist, provide a quick shutoff slip casting shower nozzle of big degree of depth percolating water of dykes and dams, can realize the high polymer quick slip casting of the emergent speedily carrying out rescue work of high degree of depth, long distance dykes and dams seepage.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a dam large-depth water leakage rapid plugging grouting spray head comprises two grouting pipes and a spray head body connected with the lower parts of the grouting pipes;
the upper part of each grouting pipe is provided with a switch, and the lower part of each grouting pipe is provided with a one-way valve;
the sprayer body comprises a mixing chamber and a slurry outlet chamber, and a stirring piece is arranged in the mixing chamber; the lower part of the mixing chamber is connected with a pulp outlet chamber through a threaded pipe, the pulp outlet chamber is of a conical structure, and the lower part of the pulp outlet chamber is provided with a pulp discharge hole; the mixing chamber, the threaded pipe and the pulp outlet chamber are all communicated.
Further, the upper surface of the mixing chamber is circular, and the cross section of the mixing chamber is in a trapezoid shape with a wide upper part and a narrow lower part.
Further, the stirring piece includes pivot and a plurality of stirring leaf, the upper end of pivot is rotated with the upper wall of mixing chamber and is connected, the lateral wall of pivot evenly is provided with a plurality of stirring leaves, the blade surface of stirring leaf is the rectangle, and the tip of stirring leaf is the sharp form of slope.
Furthermore, the lower end of each stirring blade is longitudinally connected with a stirring rod, the lower end of each stirring rod extends to the slurry outlet chamber, and the lower end of each stirring rod is in an inverted conical shape.
Furthermore, the two grouting pipes are correspondingly arranged on two sides of the mixing chamber;
the lower end of each grouting pipe penetrates through the top of the mixing chamber and extends to the lower part of the mixing chamber, a bend towards the direction of the stirring blade is arranged, the end part of each bent grouting pipe is arranged along the forward direction with the stirring blade by taking the rotating shaft as the center, and the end part of each grouting pipe is lower than the lower surface of the stirring blade.
Further, the slip casting pipe is provided with a bending angle of 30-60 degrees towards the direction of the stirring blade.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model divides the high polymer into two components which are respectively injected along the grouting pipe, and the two components are mixed and formed in the nozzle body and then leak and block resistant; therefore, the grouting pipe can be suitable for repairing dam leakage at different depths or lengths, the high polymer is not needed to be cured in the grouting pipe, the depth or the length of the grouting pipe is adjustable, and grouting repair at different depths can be realized by adjusting the length of the lengthened grouting pipe.
The utility model discloses an this internal stirring piece that is provided with of shower nozzle, two kinds of components of high polymer get into the mixing chamber after, because the slip casting liquid of slip casting equipment output has certain pressure, because the lower part of slip casting pipe is provided with bends, two kinds of components are followed the same hour hand direction of slip casting pipe and are strikeed the stirring leaf, make the stirring leaf rotate to a direction, thereby drive the puddler and rotate, with the more abundant mixture of two kinds of components, later from arranging the seepage that the thick liquid hole discharged dykes and dams till, this process time is very short, can not cause the solidification of high polymer, and the suitability is stronger.
The high polymer material injected by the nozzle body has excellent waterproof performance, good durability and better toughness, and can be effectively cemented with dam materials; the utility model is convenient to construct and is beneficial to emergency rescue; the material can generate chemical reaction within a few seconds after being injected, the volume is rapidly expanded and solidified, and the strength can reach more than 90 percent within 15 minutes; the method utilizes the characteristic that the volume of the high polymer material is rapidly expanded and solidified after chemical reaction, achieves the purposes of filling gaps and reinforcing soil bodies, pebbles and concrete structures by self, and the density or the strength of the solidified material can be flexibly regulated and controlled according to engineering requirements.
Drawings
Fig. 1 is the utility model relates to a dykes and dams quick shutoff slip casting shower nozzle of big degree of depth percolating water.
Figure 2 is the utility model relates to a side view of the shower nozzle body of dykes and dams quick shutoff slip casting shower nozzle of big degree of depth percolating water.
3 fig. 3 3 3 is 3 a 3 sectional 3 view 3 from 3 a 3- 3 a 3 direction 3 of 3 fig. 3 2 3 of 3 the 3 utility 3 model 3 of 3 a 3 dam 3 large 3 depth 3 water 3 leakage 3 fast 3 plugging 3 grouting 3 spray 3 head 3. 3
Fig. 4 is a schematic view of the utility model of a dam large depth water leakage fast plugging grouting spray head.
The reference numbers in the drawings are as follows: 1 is a grouting pipe, 2 is a switch, 3 is a mixing chamber, 4 is a threaded pipe, 5 is a slurry outlet chamber, 6 is a slurry discharge hole, 7 is a rotating shaft, 8 is a stirring blade, 9 is a stirring rod, and 10 is a one-way valve.
Detailed Description
The invention will be further explained with reference to the drawings and the detailed description below:
as shown in fig. 1 to 3, a rapid plugging grouting nozzle for large-depth water leakage of a dam comprises two grouting pipes 1 and a nozzle body connected with the lower parts of the grouting pipes 1;
the upper part of each grouting pipe 1 is respectively provided with a switch 2, and the lower part of each grouting pipe 1 is respectively provided with a one-way valve 10; the check valve 10 prevents backflow of leakage water during the repair process;
the sprayer body comprises a mixing chamber 3 and a slurry outlet chamber 5, and a stirring piece is arranged in the mixing chamber 3; the lower part of the mixing chamber 3 is connected with a pulp outlet chamber 5 through a threaded pipe 4, the pulp outlet chamber 5 is in a conical structure, and the lower part of the pulp outlet chamber 5 is provided with a pulp discharge hole 6; the mixing chamber 3, the threaded pipe 4 and the slurry outlet chamber 5 are communicated.
In a preferred embodiment, the upper surface of the mixing chamber 3 is circular and has a trapezoidal cross section with a wide top and a narrow bottom, so that the grouting liquid can flow downwards.
As a preferred embodiment, the stirring piece includes pivot 7 and a plurality of stirring leaf 8, the upper end of pivot 7 rotates with the upper wall of mixing chamber 3 to be connected, the lateral wall of pivot 7 evenly is provided with a plurality of stirring leaves 8, the blade surface of stirring leaf 8 is the rectangle, and the tip of stirring leaf 8 is the sharp form of slope.
For further optimizing product structure, every the equal longitudinal connection of the lower extreme of stirring leaf 8 has puddler 9, the lower extreme of puddler 9 extends out thick liquid room 5, the lower extreme of puddler 9 is the coniform of invering, can be that puddler 9 is more abundant stirring to the slip casting liquid after mixing.
In order to further optimize the product structure, the two grouting pipes 1 are correspondingly arranged on two sides of the mixing chamber 3;
specifically, as shown in fig. 2 to 3, the lower end of each grouting pipe 1 extends to the lower part of the mixing chamber 3 after passing through the top of the mixing chamber 3, and is provided with a bend toward the stirring blade 8, the end of the grouting pipe 1 after bending is arranged along the forward direction with the rotating shaft 7 as the center and inclined with the stirring blade 8, and the end of the grouting pipe 1 is lower than the lower surface of the stirring blade 8. The grouting pipe 1 is bent and then obliquely arranged with the stirring blades 8, so that grouting liquid output from the grouting pipe 1 can impact the stirring blades 8 with larger force, and the stirring blades 8 can rotate; the inclination angle is preferably not less than 30 °, and if the inclination angle is too small, the slurry may not impact the stirring vanes 8.
In a preferred embodiment, the grouting pipe 1 is bent in the direction of the stirring blade 8 at a bending angle of 30 to 60 °. Preferably, the bending angle set in this embodiment is 45 °, so that the grouting liquid can be ejected from the grouting pipe 1 to the stirring blade 8 to a greater extent.
As shown in fig. 4, the steps of the rapid grouting method for large-depth water leakage of a dam based on the rapid plugging grouting spray head for large-depth water leakage of the dam include:
drilling a grouting hole, and drilling the depth to a dam leakage position;
one end of each of the two grouting pipes 1 is connected with the nozzle body, and the other end of each grouting pipe is connected with grouting equipment;
the nozzle body is deeply inserted to the position of dam leakage;
the grouting equipment respectively conveys two components in the high polymer for repairing leakage to the spray head body through two grouting pipes 1;
it should be noted that, before this step, the high polymer for repairing leakage is divided into two kinds of grouting liquids containing two components in advance, the two kinds of grouting liquids are injected into the two grouting pipes 1 through two grouting devices, respectively, the switch 2 on the grouting pipe 1 is opened, and the grouting liquid is injected into the nozzle body along the grouting pipe 1.
Two components in the high polymer are mixed by stirring in a mixing chamber 3 of a nozzle body, the grouting pressure of grouting equipment and the potential energy of grouting liquid in the descending process of a grouting pipe 1 are converted into kinetic energy, when the grouting liquid is discharged along the grouting pipe 1, impact force is formed on a stirring blade 8, the stirring blade 8 rotates to drive a stirring rod 9 to rotate, the two grouting liquids are mixed more uniformly in the stirring process, the two grouting liquids enter a slurry outlet chamber 5 after being mixed and are discharged along a slurry outlet hole 6 of the slurry outlet chamber 5, and the high polymer discharged from the slurry outlet hole 6 rapidly reacts, expands and solidifies at the leakage position due to the leakage position of the nozzle body, so that a gap at the leakage position is rapidly filled and blocked; thus, the dam leakage repair is completed.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (6)
1. A dam large-depth water leakage rapid plugging grouting spray head is characterized by comprising two grouting pipes (1) and a spray head body connected with the lower parts of the grouting pipes (1);
the upper part of each grouting pipe (1) is provided with a switch (2) respectively; the lower parts are respectively provided with a one-way valve (10);
the sprayer body comprises a mixing chamber (3) and a slurry outlet chamber (5), and a stirring piece is arranged in the mixing chamber (3); the lower part of the mixing chamber (3) is connected with a pulp outlet chamber (5) through a threaded pipe (4), the pulp outlet chamber (5) is of a conical structure, and the lower part of the pulp outlet chamber (5) is provided with a pulp discharge hole (6); the mixing chamber (3), the threaded pipe (4) and the pulp outlet chamber (5) are communicated with each other.
2. The dam rapid plugging grouting nozzle for large-depth water leakage according to claim 1, characterized in that the upper surface of the mixing chamber (3) is circular and the cross section is trapezoid with wide top and narrow bottom.
3. The dam rapid plugging and grouting spray head for large-depth water leakage according to claim 1, wherein the stirring member comprises a rotating shaft (7) and a plurality of stirring blades (8), the upper end of the rotating shaft (7) is rotatably connected with the upper wall of the mixing chamber (3), the side wall of the rotating shaft (7) is uniformly provided with the plurality of stirring blades (8), the blade surface of each stirring blade (8) is rectangular, and the end part of each stirring blade (8) is in an inclined pointed shape.
4. The dam rapid plugging grouting spray head for large-depth water leakage according to claim 3, wherein a stirring rod (9) is longitudinally connected to the lower end of each stirring blade (8), the lower end of the stirring rod (9) extends to the slurry outlet chamber (5), and the lower end of the stirring rod (9) is in an inverted conical shape.
5. The rapid plugging grouting spray head for large-depth water leakage of a dam according to claim 3, characterized in that two grouting pipes (1) are correspondingly arranged at two sides of the mixing chamber (3);
the lower end of each grouting pipe (1) penetrates through the top of the mixing chamber (3), extends to the lower part of the mixing chamber (3), is provided with a bend towards the direction of the stirring blade (8), the end part of each bent grouting pipe (1) is arranged along the direction of the rotating shaft (7) and obliquely with the stirring blade (8), and the end part of each grouting pipe (1) is lower than the lower surface of the stirring blade (8).
6. The rapid plugging grouting nozzle for large-depth water leakage of a dam according to claim 5, wherein the bending angle of the grouting pipe (1) bent towards the stirring blade (8) is 30-60 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920998051.6U CN210561999U (en) | 2019-06-29 | 2019-06-29 | Dam large-depth water leakage rapid plugging grouting spray head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920998051.6U CN210561999U (en) | 2019-06-29 | 2019-06-29 | Dam large-depth water leakage rapid plugging grouting spray head |
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| CN210561999U true CN210561999U (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374057A (en) * | 2019-06-29 | 2019-10-25 | 郑州大学 | A kind of big depth percolating water quick blocking slip casting spray head of dykes and dams and grouting method |
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2019
- 2019-06-29 CN CN201920998051.6U patent/CN210561999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374057A (en) * | 2019-06-29 | 2019-10-25 | 郑州大学 | A kind of big depth percolating water quick blocking slip casting spray head of dykes and dams and grouting method |
| CN110374057B (en) * | 2019-06-29 | 2024-03-19 | 郑州大学 | Quick plugging grouting nozzle for large-depth water leakage of dam and grouting method |
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