CN210264736U - Earth pressure balance shield grouting equipment for coarse sand layer in rich water - Google Patents
Earth pressure balance shield grouting equipment for coarse sand layer in rich water Download PDFInfo
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- CN210264736U CN210264736U CN201920909137.7U CN201920909137U CN210264736U CN 210264736 U CN210264736 U CN 210264736U CN 201920909137 U CN201920909137 U CN 201920909137U CN 210264736 U CN210264736 U CN 210264736U
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Abstract
The utility model discloses a balanced shield slip casting equipment of coarse sand bed soil pressure in rich water, include: a pulp outlet is formed at one end of the horizontal pipe, and a connecting port is formed in the middle of the horizontal pipe; one end of the vertical pipe is connected to the connecting port of the transverse pipe and is communicated with the connecting port; the mixing body is of an oblique cylindrical structure, is rotatably arranged in the vertical pipe and is close to the position of the transverse pipe, a mixing cavity is formed inside the mixing body, a first opening and a second opening which are respectively communicated with the mixing cavity are formed in the side wall of the mixing body, the first opening corresponds to the position of the first feed port, the second opening corresponds to the position of the second feed port, and a third opening communicated with the mixing cavity is further formed in the surface, facing the transverse pipe, of the mixing body; and the moving body is of a cylindrical structure and is arranged in the horizontal pipe in a sliding mode at a position close to the other end. The utility model discloses a institutional advancement makes two kinds of thick liquids misce benes in the hybrid to in time clear away remaining thick liquids through the moving body, reduce the possibility of jam.
Description
Technical Field
The utility model relates to a shield constructs construction technical field. More specifically, the utility model relates to a coarse sand bed soil pressure balance shield slip casting equipment in the rich water.
Background
In the process of shield construction in a coarse sand layer in rich water, two-fluid grouting is generally adopted to reduce the permeability of a soil body and support the soil body. The double-liquid grouting has the advantages of short setting time, high strength of a solid body and the like, and the current double-liquid grouting construction generally has two grouting modes: the first is that two kinds of slurry are independently grouted and mixed after entering the soil body; the other is that the two kinds of slurry are mixed and enter the soil body together. The first grouting mode has the defect that the mixing effect is difficult to determine, and the second grouting mode has the defect that a grout conveying pipe is easy to block. Therefore, it is desirable to design a grouting apparatus capable of improving the above defects to some extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coarse sand bed soil pressure balance shield slip casting equipment in rich water, it makes two kinds of thick liquids misce bene in the hybrid through structural improvement to in time clear away remaining thick liquids through the moving body, reduce the possibility of jam.
In order to realize according to the utility model discloses these objects and other advantages, the balanced shield slip casting equipment of coarse sand bed soil pressure in rich water is provided, include:
the device comprises a transverse pipe, a handle and a handle, wherein a pulp outlet is formed at one end of the transverse pipe, and a connecting port is formed in the middle of the transverse pipe;
one end of the vertical pipe is connected to the connecting opening of the transverse pipe and communicated with the connecting opening, the vertical pipe and the transverse pipe form an angle of 30-45 degrees, a first feeding hole and a second feeding hole are further formed in the vertical pipe at intervals, the first feeding hole is connected and communicated with a first feeding pipe, and the second feeding hole is connected and communicated with a second feeding pipe;
the mixing body is of an oblique cylindrical structure, the mixing body is rotatably arranged in the vertical pipe at a position close to the transverse pipe, the outer diameter of the mixing body is matched with the inner diameter of the vertical pipe, a mixing cavity is formed inside the mixing body, a first opening and a second opening which are respectively communicated with the mixing cavity are formed in the side wall of the mixing body, the first opening corresponds to the first feed port, the second opening corresponds to the second feed port, a third opening communicated with the mixing cavity is further formed in the surface of the mixing body facing the transverse pipe, and the surface of the mixing body far away from the transverse pipe is connected with an output shaft of a motor;
the moving body is of a cylindrical structure and is arranged in the transverse pipe in a sliding mode and close to the other end of the transverse pipe, the outer diameter of the moving body is matched with the inner diameter of the transverse pipe, and one end, far away from the slurry outlet, of the moving body is connected with a piston rod of a hydraulic oil cylinder.
Preferably, in the soil pressure balance shield grouting equipment for the rich water medium-coarse sand layer, the moving body is switched between at least a first position and a second position, when the moving body is located at the first position, the moving body is located between the other end of the transverse pipe and the vertical pipe, and when the moving body is located at the second position, the moving body closes the connecting port and the grout outlet.
Preferably, in the water-rich medium-coarse sand layer earth pressure balance shield grouting equipment, an included angle between a generatrix and a bottom surface of the inclined cylinder is equal to an included angle between the transverse pipe and the vertical pipe.
Preferably, the first feed port and the second feed port are respectively located at two sides of the standpipe, and when the first feed port is communicated with the first opening, the second feed port is not communicated with the second opening, and when the second feed port is communicated with the second opening, the first feed port is not communicated with the first opening.
Preferably, in the water-rich medium-coarse sand bedding soil pressure balance shield grouting device, the first opening and the second opening are both arc-shaped openings extending along the outer circumference of the mixture body.
Preferably, the water-rich medium coarse sand layer earth pressure balance shield grouting equipment is characterized in that an auger is axially arranged inside the mixing cavity, and the conveying direction of the auger faces the third opening.
Preferably, in the water-rich medium-coarse sand bedding soil pressure balance shield grouting device, the moving body protrudes outwards towards one end edge of the slurry outlet to form a plurality of sharp pointed parts.
The utility model discloses at least, include following beneficial effect:
the utility model discloses a violently manage and the standpipe, be provided with the mixture in the standpipe, the mixture is rotatable, and two kinds of thick liquids export behind the misce bene in the mixture, violently set up the moving body in the pipe, and the moving body can be in primary importance and second place under the drive of hydro-cylinder, and when the primary importance, the moving body does not influence going on of slip casting process, and when removing the second place, the moving body will remain the thick liquid and release violently the pipe to occupy the region that is close to grout outlet department, avoid the thick liquid in the soil body to flow back from grout outlet. The utility model discloses simple structure to can overcome the easy defect of blockking up of prior art pipeline to a certain extent.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a movable body of the present invention at a first position;
fig. 2 is a schematic structural view of the moving body of the present invention at a second position;
fig. 3 is the external structure diagram of the mixing body of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, 2, 3, the utility model provides a balanced shield slip casting equipment is pressed to coarse sand bed soil in rich water, include:
a grout outlet 11 is formed at one end of the transverse pipe 1, and a connecting port is formed in the middle of the transverse pipe 1;
one end of the vertical pipe 2 is connected to the connecting port of the transverse pipe 1 and communicated with the connecting port, the vertical pipe 2 and the transverse pipe 1 form an angle of 30-45 degrees, the vertical pipe 2 is further provided with a first feeding port and a second feeding port at intervals, the first feeding port is connected and communicated with a first feeding pipe 3, and the second feeding port is connected and communicated with a second feeding pipe 4;
the mixing body 5 is of an oblique cylindrical structure, the mixing body 5 is rotatably arranged in the vertical pipe 2 and close to the transverse pipe 1, the outer diameter of the mixing body 5 is matched with the inner diameter of the vertical pipe 2, a mixing cavity is formed inside the mixing body 5, a first opening 51 and a second opening 52 which are respectively communicated with the mixing cavity are formed in the side wall of the mixing body 5, the first opening 51 corresponds to the first feed port, the second opening 52 corresponds to the second feed port, a third opening 53 which is communicated with the mixing cavity is further formed in the surface, facing the transverse pipe 1, of the mixing body 5, and the surface, away from the transverse pipe 1, of the mixing body 5 is connected with an output shaft of a motor 21;
the moving body 6 is of a cylindrical structure, the moving body 6 is arranged in the transverse pipe 1 in a sliding mode and close to the other end, the outer diameter of the moving body 6 is matched with the inner diameter of the transverse pipe 1, and one end, far away from the grout outlet 11, of the moving body 6 is connected with a piston rod of a hydraulic oil cylinder 12.
In the technical scheme, in the shield construction process, grouting needs to be synchronously performed between the soil body and the segment ring so as to reduce the soil body permeability, support the soil body and reduce the possibility of water leakage and soil body collapse. The double-liquid grouting has the advantages of short setting time, high strength of a solid body and the like, and can be cement-water glass grouting liquid. The structure that is similar to the T shape is constituteed to violently pipe 1 and standpipe 2 of this technical scheme, and the interval is provided with first feed inlet and second feed inlet on the standpipe 2, and first feed inlet and second feed inlet communicate with first inlet pipe 3 and second inlet pipe 4 respectively, and first inlet pipe 3 and second inlet pipe 4 are used for inputing A liquid and B liquid respectively, like cement thick liquid and water glass thick liquid. The horizontal tube and the vertical tube form a certain acute angle, so that the slurry can be conveniently sprayed out from the slurry outlet, and the preferable angle is 30-45 degrees. The position that roughly corresponds with first feed inlet and second feed inlet in standpipe 2 is rotatory to be provided with mixture 5, be formed with the hybrid chamber in the mixture 5, the hybrid 5 lateral wall is provided with first opening 51 and second opening 52, first opening 51 and second opening 52 all communicate with the hybrid chamber, first opening 51 and second opening 52 correspond with first feed inlet and second feed inlet position respectively, liquid A and liquid B get into the hybrid chamber from first opening 51 and second opening 52 respectively, under the rotatory effect of hybrid chamber, the misce bene, spout to violently managing 1 in from third opening 53 after the misce, spout to the soil layer from grout outlet 11 again. The moving body 6 is arranged in the transverse pipe 1 in a sliding mode, and the moving body 6 is driven by a hydraulic oil cylinder, so that the moving body 6 can move in the transverse pipe 1 and can close the connecting port. During double-liquid grouting, the first feeding pipe 3 inputs the liquid A, the second feeding pipe 4 inputs the liquid B, and after the liquid A and the liquid B enter the mixing cavity, the liquid A and the liquid B are uniformly mixed due to the rotation of the mixing body 5, enter the transverse pipe 1 from the third opening 53, and are sprayed out to a soil body from the slurry outlet 11. When the double-liquid grouting is suspended, the moving body 6 moves to the grout outlet 11, the residual grout in the transverse pipe 1 is pushed out of the grout outlet 11, the grout outlet 11 is prevented from being blocked by the solidified residual grout, the grout outlet 11 is sealed, the grout in a soil layer is prevented from flowing back to the transverse pipe 1, and when the double-liquid grouting is performed again, the moving body 6 returns to the initial position. It can be seen that this technical scheme simple structure can avoid the problem that A liquid and B liquid can not intensive mixing and the easy problem of blockking up of thick liquid outlet 11 near the region to a certain extent.
In another technical solution, in the water-rich medium-coarse sand stratum earth pressure balance shield grouting equipment, the moving body 6 is switched at least between a first position and a second position, when the moving body 6 is located at the first position, the moving body 6 is located at a position between the other end of the transverse pipe 1 and the vertical pipe 2, and when the moving body 6 is located at the second position, the moving body 6 closes the connecting port and the grout outlet 11. Here, as shown in fig. 1, the first position is located standpipe 2 one side, as shown in fig. 2, the second position then seals connector and grout outlet 11, when being in the first position, makes things convenient for biliquid slip casting operation, avoids the thick liquid of earth weight to flow back to violently leading to the fact violently pipe 1 to fill in violently managing 1 when being in the second position, moves the in-process to the second position from the first position, pushes out grout outlet 11 with remaining thick liquid, avoids remaining thick liquid to solidify in violently managing 1.
In another technical scheme, in the water-rich medium coarse sand layer earth pressure balance shield grouting equipment, an included angle between a generatrix and a bottom surface of the inclined cylinder is equal to an included angle between the transverse pipe 1 and the vertical pipe 2. Here, a preferred shape of the mix 5 is provided, i.e. the angle of inclination is in line with the angle of inclination of the cross tube 1 with the standpipe 2, so that the mix 5 occupies as much as possible the position in the standpipe 2 close to the cross tube 1, avoiding a large amount of slurry to solidify there.
In another technical solution, in the water-rich medium-coarse sand stratified soil pressure balance shield grouting equipment, the first feed port and the second feed port are respectively located at two sides of the vertical pipe 2, when the first feed port is communicated with the first opening 51, the second feed port is not communicated with the second opening 52, and when the second feed port is communicated with the second opening 52, the first feed port is not communicated with the first opening 51. Here, a preferred arrangement of the first feeding hole, the second feeding hole, the first opening 51 and the second opening 52 is provided, so that the liquid a and the liquid B can alternately enter the mixing cavity during the two-liquid grouting, so as to promote the sufficient mixing, and so that the single-liquid grouting, such as the liquid a grouting alone, is possible, only the second feeding hole needs to be sealed by the mixture body 5, and the mixture body 5 does not rotate.
In another technical solution, as shown in fig. 3, in the water-rich medium-coarse sand bedding pressure balance shield grouting equipment, the first opening 51 and the second opening 52 are both arc-shaped openings extending along the outer circumference of the mixture 5. Here, the liquid A and the liquid B can continuously enter the mixing cavity within a long distance of the rotation of the mixing body 5, and the grouting speed is ensured. The second opening is not shown in fig. 3, and is identical to the first opening, except for being located on the opposite side of and above the first opening.
In another technical scheme, the earth pressure balance shield grouting equipment for the coarse sand layer in the rich water is characterized in that an auger 54 is axially arranged inside the mixing cavity, and the conveying direction of the auger 54 faces the third opening 53. Here, the height of the auger 54 is not higher than the height of the mixing chamber, and the auger 54 can play a role of stirring the solution a and the solution B while rotating along with the mixture 5, and can promote the slurry to enter the horizontal pipe 1 from the third opening 53, thereby reducing the deposition of the slurry in the mixing chamber.
In another technical solution, in the water-rich medium-coarse sand stratum earth pressure balance shield grouting equipment, the moving body 6 protrudes outwards towards one end edge of the grout outlet 11 to form a plurality of sharp pointed parts 61. The spike 61 is used to separate the semi-solidified slurry from the wall of the horizontal tube 1 when the moving body 6 moves in the horizontal tube 1, and the moving body 6 can push the semi-solidified or solidified residual slurry out of the slurry outlet 11.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. The application, modification and change of the earth pressure balance shield grouting equipment for the coarse sand layer in the rich water of the utility model are obvious to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. Rich aquatic coarse sand bed earth pressure balance shield slip casting equipment, its characterized in that includes:
the device comprises a transverse pipe, a handle and a handle, wherein a pulp outlet is formed at one end of the transverse pipe, and a connecting port is formed in the middle of the transverse pipe;
one end of the vertical pipe is connected to the connecting opening of the transverse pipe and communicated with the connecting opening, the vertical pipe and the transverse pipe form an angle of 30-45 degrees, a first feeding hole and a second feeding hole are further formed in the vertical pipe at intervals, the first feeding hole is connected and communicated with a first feeding pipe, and the second feeding hole is connected and communicated with a second feeding pipe;
the mixing body is of an oblique cylindrical structure, the mixing body is rotatably arranged in the vertical pipe at a position close to the transverse pipe, the outer diameter of the mixing body is matched with the inner diameter of the vertical pipe, a mixing cavity is formed inside the mixing body, a first opening and a second opening which are respectively communicated with the mixing cavity are formed in the side wall of the mixing body, the first opening corresponds to the first feed port, the second opening corresponds to the second feed port, a third opening communicated with the mixing cavity is further formed in the surface of the mixing body facing the transverse pipe, and the surface of the mixing body far away from the transverse pipe is connected with an output shaft of a motor;
the moving body is of a cylindrical structure and is arranged in the transverse pipe in a sliding mode and close to the other end of the transverse pipe, the outer diameter of the moving body is matched with the inner diameter of the transverse pipe, and one end, far away from the slurry outlet, of the moving body is connected with a piston rod of a hydraulic oil cylinder.
2. The water-rich medium coarse sand bedding soil pressure balance shield grouting apparatus according to claim 1, wherein the moving body switches between at least a first position and a second position, the moving body is located at a position between the other end of the horizontal pipe and the vertical pipe when the moving body is located at the first position, and the moving body closes the connection port and the grout outlet when the moving body is located at the second position.
3. The water-rich medium coarse sand bedding soil pressure balance shield grouting equipment as claimed in claim 1, wherein an included angle between a generatrix and a bottom surface of the inclined cylinder is equal to an included angle between the transverse pipe and the vertical pipe.
4. The water-rich medium coarse sand bedding pressure balance shield grouting apparatus of claim 1, wherein the first feed port and the second feed port are located on both sides of the standpipe, and when the first feed port is in communication with the first opening, the second feed port is not in communication with the second opening, and when the second feed port is in communication with the second opening, the first feed port is not in communication with the first opening.
5. The water-rich medium coarse sand bedding pressure balance shield grouting apparatus of claim 4, wherein the first opening and the second opening are both arc-shaped openings extending along an outer circumference of the mixing body.
6. The water-rich medium coarse sand bedding soil pressure balance shield grouting device of claim 1, wherein an auger is axially arranged inside the mixing cavity, and the conveying direction of the auger faces the third opening.
7. The water-rich medium coarse sand bedding soil pressure balance shield grouting device as claimed in claim 1, wherein the moving body protrudes outwards towards one end edge of the grout outlet to form a plurality of sharp pointed parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909137.7U CN210264736U (en) | 2019-06-17 | 2019-06-17 | Earth pressure balance shield grouting equipment for coarse sand layer in rich water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909137.7U CN210264736U (en) | 2019-06-17 | 2019-06-17 | Earth pressure balance shield grouting equipment for coarse sand layer in rich water |
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| Publication Number | Publication Date |
|---|---|
| CN210264736U true CN210264736U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920909137.7U Active CN210264736U (en) | 2019-06-17 | 2019-06-17 | Earth pressure balance shield grouting equipment for coarse sand layer in rich water |
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|---|---|
| CN (1) | CN210264736U (en) |
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- 2019-06-17 CN CN201920909137.7U patent/CN210264736U/en active Active
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