CN203658354U - Grouting experimental equipment - Google Patents
Grouting experimental equipment Download PDFInfo
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- CN203658354U CN203658354U CN201320839330.0U CN201320839330U CN203658354U CN 203658354 U CN203658354 U CN 203658354U CN 201320839330 U CN201320839330 U CN 201320839330U CN 203658354 U CN203658354 U CN 203658354U
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- grouting
- model box
- plug
- sand storage
- pipe
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- Expired - Lifetime
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- 239000004576 sand Substances 0.000 claims abstract description 45
- 239000011440 grout Substances 0.000 claims abstract description 33
- 238000004088 simulation Methods 0.000 claims abstract description 32
- 238000002474 experimental method Methods 0.000 claims abstract description 13
- 238000012806 monitoring device Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 37
- 229920001971 elastomer Polymers 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003351 stiffener Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000005574 cross-species transmission Effects 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 28
- 238000007569 slipcasting Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000011148 porous material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses grouting experimental equipment, and belongs to the field of grouting simulation experiment equipment. The equipment comprises a practical stratum simulation device and a grouting device, wherein the practical stratum simulation device consists of a pressurization plunger, a model box, an air compressor and a pressure monitoring device; the pressurization plunger is movably arranged in the model box, a plunger rod on the upper end of the pressurization plunger is movably arranged in an opening in the upper end of the model box, the pressurization plunger can move in the model box, the space, above the pressurization plunger, in the model box is a pressurization chamber, and a space, below the pressurization plunger, in the model box, is a sand storage chamber; the air compressor is communicated with the pressurization chamber in the model box through a pipeline; a detection end of the pressure monitoring device is arranged in the sand storage chamber in the model box; a grouting pipe of the grouting device extends and is arranged in the sand storage chamber in the model box. The equipment has the advantages of being accurate in experiment results, close to the practical engineering in the grouting experiment effect, and capable of grout spillover.
Description
Technical Field
The utility model relates to a slip casting simulation experiment equipment field especially relates to a slip casting experimental facilities.
Background
In civil engineering construction, soft soil layers such as sand layers which are rich in water and poor in bearing capacity are often encountered, the soft soil layers bring extremely adverse effects to engineering construction, and water stopping and reinforcing treatment needs to be carried out on the soil layers before construction.
The grouting method is an effective, convenient and low-cost geotechnical engineering technology, and is increasingly widely applied to engineering construction, however, due to the complexity of stratum conditions and the invisibility of the grouting method, the theoretical research of the grouting method is greatly lagged behind the engineering application. The indoor simulation grouting test is an effective method for researching grouting theory and engineering application, the model test has the characteristics of low cost, convenience in control, visual effect and the like, but the size effect cannot be overcome mostly, the simulation of the actual stratum (such as the soil pressure of 20 meters underground) is far from reaching the expected effect, and the difference between the indoor test data and the field test result needs to be further improved.
The existing laboratory grouting simulation experiment mostly adopts a rectangular or thin cylindrical model box to perform model test, the size of the model box is smaller, the test of a common simulation static pressure grouting method is more, the influence of actual stratum soil pressure and pore water pressure cannot be considered, the simulation of the actual stratum is limited by laboratory conditions and the smaller size of the model box, the pile loading is only adopted to simulate the actual stratum to far reach the simulation depth of the actual stratum, and therefore the action of actual soil pressure and pore water pressure of the grouting stratum cannot be considered; in addition, the grouting pressure adopted during grouting is different from the actual engineering, so that the indoor grouting test effect is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a slip casting experimental facilities, can effectively simulate the influence of actual stratum soil pressure and pore water pressure, make the experimental effect of indoor slip casting be close to actual engineering to solve the less influence that can not simulate actual stratum soil pressure and pore water pressure of mold box size of current laboratory slip casting simulation, simulation effect and actual engineering differ greatly the problem.
In order to solve the technical problem, the utility model provides a slip casting experimental facilities, include:
an actual formation simulation device and a grouting device; wherein,
the actual formation simulation apparatus includes: the device comprises a pressurizing plug, a model box, an air compressor and a pressure monitoring device; the pressurizing plug is movably arranged in the model box, a plug rod at the upper end of the pressurizing plug is movably arranged in an upper end opening of the model box, the pressurizing plug can move in the model box, the space above the pressurizing plug in the model box is a pressurizing chamber, and the space below the pressurizing plug in the model box is a sand storage chamber; the air compressor is communicated with a pressurizing cabin in the model box through a pipeline; the detection end of the pressure monitoring device is arranged in a sand storage cabin in the model box;
and a grouting pipe of the grouting device extends into a sand storage cabin arranged in the model box.
The utility model has the advantages that: the actual soil pressure and the pore water pressure of the actual engineering stratum are simulated by the actual stratum simulation device through the matching of the grouting device and the actual stratum simulation device, and grouting is carried out by the grouting device. The influence of the actual soil pressure and the pore water pressure of the grouting stratum is considered, so that the method has the advantages of accurate test result and close grouting test effect to actual engineering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a grouting experiment device provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mold box of a grouting experiment device provided by an embodiment of the present invention;
fig. 3 is a schematic view of a pressurizing plug according to an embodiment of the present invention;
fig. 4 is a schematic view of a bottom plate of a mold box according to an embodiment of the present invention;
fig. 5 is a schematic view of an O-ring according to an embodiment of the present invention;
fig. 6 is a schematic view of a sealing cover according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a grouting system according to an embodiment of the present invention;
fig. 8 is a schematic view of a grouting pipe of a grouting system according to an embodiment of the present invention;
fig. 9 is a schematic view of a grout stopping sheet of a grouting system provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a slip casting experimental facilities, as shown in figure 1, this equipment includes: the actual stratum simulation device 2 and the grouting device 1;
wherein, the actual formation simulation apparatus 2 includes: a pressurizing plug 22, a mold box 21, an air compressor 23 and a pressure monitoring device 25; the pressurizing plug 22 is movably arranged in the model box 21, a plug rod 211 at the upper end of the pressurizing plug 22 is movably arranged in an upper end opening of the model box 21, the pressurizing plug 22 can move in the model box 21, the space above the pressurizing plug 22 in the model box 21 is a pressurizing chamber 201, and the space below the pressurizing plug 22 in the model box 21 is a sand storage chamber 202; the air compressor 23 is communicated with a pressurizing cabin 201 in the model box 21 through a pipeline 24 (which can be a high-pressure rubber pipe); the detection end of the pressure monitoring device 25 is arranged in a sand storage cabin 202 in the model box 21;
the grouting pipe 13 of the grouting device 1 extends into a sand storage chamber 202 provided in the mold box 21.
As shown in fig. 2 to 6, in the above apparatus, the mold box 21 is composed of a sand storage tank 212, a bottom plate 211, a sealing cover 213, and a stiffener 214; wherein, the sand storage cylinder 212 is a cylindrical structure, and two ends of the sand storage cylinder 212 are provided with openings; the bottom plate 211 is hermetically covered on the bottom opening of the sand storage barrel 212; the sealing cover 213 is arranged on the top opening of the sand storage cylinder 212 in a sealing way, and the middle part of the sealing cover 213 is provided with an opening as the upper end opening of the mold box 21; the stiffening rod 214 is connected between the sealing cover 213 and the bottom plate 211, the stiffening rod 214 is positioned outside the sand storage barrel 212, the number of the stiffening rods 214 is multiple, the stiffening rods 214 are uniformly arranged and connected between the sealing cover 213 and the bottom plate 211, and the sealing cover 213, the bottom plate 211 and the sand storage barrel 212 can be fixed into an integral container structure through the stiffening rods 214.
In the above device, the sealing ring 2132 is arranged at the contact position of the sealing cover 213 and the top opening of the sand storage barrel 212, and an O-shaped sealing ring can be adopted, so that the sealing ring can be better sealed.
In the above apparatus, a sealing member 2131 for sealing a contact portion between the upper end opening of the mold box 21 and the plug rod at the upper end of the pressurizing plug is provided at the upper end opening, and the sealing member 2131 may be a gasket.
As shown in fig. 3, in the above apparatus, the plug body 222 is provided at the bottom of the plug rod 221 of the pressurizing plug 22, the shape of the plug body 222 matches with the shape of the accommodating space (i.e. the sand storage barrel 212) in the mold box 21, and the plug body 222 is generally circular and matches with the sand storage barrel as the accommodating space in the mold box; the periphery of the plug body 222 is provided with a seal, and a sealing ring 220 is arranged at the contact position between the periphery of the plug body 222 and the inner wall of the mold box; the middle parts of the plug rod 221 and the plug body 222 are provided with a hollow channel 223 for a grouting pipe of a grouting device to pass through.
In the above-mentioned equipment, the grouting device 1 further includes, in addition to the grouting pipe 13: a grouting pump 11, a high-pressure rubber pipe 12 and a grout stopping sheet 14; the grouting pump 11 is connected with the input port of the grouting pipe 13 through a high-pressure rubber pipe 12; the grout stopping sheet 14 is arranged on the grouting pipe 13 above the grouting head, the grout stopping sheet 14 is positioned in the sand storage cabin 202 in the model box 21, and the grout stopping sheet 14 can prevent grout from flowing along a gap between the outer sleeve 132 of the grouting pipe 21 and a soil layer in the grouting process.
As shown in fig. 8, in the above apparatus, the grouting pipe 13 is composed of an outer sleeve 132, an inner pipe 131, and a bearing 133; the outer sleeve 132 is shorter than the inner tube 131, the outer sleeve 132 is sleeved outside the inner tube 131, and both ends of the outer sleeve 132 are provided with bearings 133 to be connected with the tube body of the inner tube 131;
the front end of the inner tube 131 extending out of the outer sleeve 132 is provided with a plurality of grout discharging holes;
the rear end of the inner pipe 131 is connected to a high-pressure hose 12 connected to the grouting pump 11.
The outer surface of the outer sleeve 132 is provided with threads for the arrangement of the grout stop 14.
In the above apparatus, the grouting pipe 13 further includes: and a wrench 134, the wrench 134 being disposed at an upper end of the outer sleeve 132. The outer sleeve of the grouting pipe is convenient to operate through a wrench.
In the above-mentioned apparatus, as shown in fig. 9, the grout stop 14 is circular and has a through hole 141 with an internal thread at its middle part, and the grout stop can be mounted on the outer sleeve 132 of the grout pipe 13 through the through hole 141 with the internal thread to prevent the grout from flowing out along the outer sleeve of the grout pipe during the grouting process.
The surface of the grout stopping sheet 14 is provided with a plurality of anti-slip sheets 142, each anti-slip sheet is arc-shaped, so that a plurality of bulges are formed on the upper surface and the lower surface of each grout stopping sheet, and when the outer sleeve of the grouting pipe is prevented from rotating, the grout stopping sheets rotate in the sandy soil along with the outer sleeve of the grouting pipe.
The utility model discloses a slip casting experimental facilities has not only solved the less influence that can not simulate actual stratum soil pressure and pore water pressure of mold box size of current simulation laboratory slip casting simulation, and simulation effect and actual engineering differ greatly problem has also solved the difficult operation of slip casting pipe in the slip casting process to and the problem of slip casting pipe effluvium is easily followed in the slip casting.
The grouting experiment equipment of the present invention is further described with reference to the accompanying drawings and specific embodiments.
The grouting experiment equipment provided by the embodiment solves the problem of simulation of actual formation pressure (soil pressure and pore water pressure) in an indoor static pressure grouting model experiment.
The experimental equipment can meet the grouting simulation experiment requirements of saturated micro-bearing stratum and consists of an actual stratum simulation device and a grouting device; the actual stratum simulation device comprises a cylindrical model box (a bottom plate, a sand storage cylinder, a sealing cover and a stiffening rod), a pressurizing plug, an air compressor, a pressure monitoring device (pore water pressure and soil pressure), a pipeline and the like; the working principle of the device is that compressed air is injected into a cylindrical model box through a pipeline by an air compressor, the pressure of the upper soil layer at the grouting position is simulated by the pressure of the compressed air, and a pressure monitoring device is embedded into the soil layer in the model box to monitor the change conditions of soil pressure and pore water pressure before and after grouting.
The grouting device comprises a grouting pump, a high-pressure rubber pipe, a grouting pipe, a grout stopping sheet and the like, pressure is provided by the grouting pump, grout to be injected is injected into a soil layer of the actual stratum simulation device through the grouting pipe, the grout stopping sheet is made of a steel sheet, the grout can be prevented or reduced from overflowing along a gap between the soil layer and the grouting pipe, and certain grouting pressure can be maintained.
The overall structure of the experimental facility is shown in fig. 1, wherein the actual formation simulation device comprises the following components:
the cylindrical mold box 21 is composed of a bottom plate 211, a sand storage barrel 212, a sealing cover 213 and a stiffening rod 214. The sand storage cylinder 212 is a cylindrical container which is a volume space simulated by an actual stratum and can observe the deformation of the stratum and the flowing of slurry in the grouting process, the pressurizing plug 22 is installed in the sand storage cylinder 212 and is pressurized by the air compressor 23 to exert pressure on the stratum in the sand storage cylinder 212, the sealing cover 213, the sand storage cylinder 212, the pressurizing plug 22 and the bottom plate 211 are connected into a whole by the stiffening rod 214 to form a sealed space (pressurizing chamber), the air compressor presses compressed air into the pressurizing chamber through a pneumatic connector to realize the purpose of pressurizing, and the integral structure of the model box and the pressurizing plug is shown in FIG. 2.
(1) And (3) pressing a plug:
the pressure plug 22 is the main pressure member of the present device, and the simulation of the upper soil pressure is mainly realized by applying compressed air on the pressure plug. As shown in figure 3, two O-shaped rubber sealing rings are arranged on the outer edge of the pressurizing plug to isolate gas between the compressed air cabin and the soil layer. The middle part of the pressurizing plug is provided with a through hole, and the grouting pipe is inserted into the sand storage barrel and is connected with an external grouting pump through the through hole.
(2) A bottom plate:
the bottom plate 211 is circular, the diameter is 700mm, the bottom plate is a bearing part of the gravity of the whole device, the outer edge extends out of the sand storage cylinder by 10cm, 8 preformed holes 2111 with the diameter of 20mm are formed in the extending part, the stiffening rod 214 penetrates through the preformed holes 2111 and is connected with the upper sealing cover 213 through screws, and the bottom plate, the sand storage cylinder, the pressurizing plug and the sealing cover are connected into a whole. The floor is schematically shown in fig. 4:
(3) a sand storage cylinder:
store up sand section of thick bamboo 212 for thick 30mm, external diameter 500mm, high 1000 mm's cylinder container, store up sand section of thick bamboo and constitute whole experimental facilities's accommodation space for splendid attire soil for experiments.
(5) Sealing the cover:
as shown in fig. 5, the sealing cover 213 has a circular plate body with a diameter of 700mm, 8 preformed holes with a diameter of 20mm are formed at positions corresponding to the bottom of the sealing cover, the sealing cover is connected with the bottom plate as a whole through a stiffening rod, a circular through hole is formed in the middle of the sealing cover, the pressurizing plug vertically moves up and down through the through hole, and 2O-rings are formed on the inner wall of the through hole to isolate high-pressure gas and external air in the compressed air chamber. The sealing cover is provided with a pneumatic connector 241, the pneumatic connector 214 is connected with the air compressor 23 through a pipeline 24, after the air compressor 23 is started, air is injected into the compressed air chamber 201 through the pneumatic connector 241, the air pressure is increased continuously, and the pressurizing plug is pushed to move downwards to generate pressure.
The grouting device has the following structure:
fig. 7 shows a schematic diagram of a grouting device, which is composed of a grouting pump 11, a high-pressure rubber tube 12, a grouting tube 13 and a grout stopping sheet 14, wherein the grouting pump 11 is connected with the grouting tube 13 through the high-pressure rubber tube 12, the grout stopping sheet 14 is arranged on the grouting tube 13, the grouting pump 11 is used for providing pressure to inject grout into a sand layer through the high-pressure rubber tube 12 and the grouting tube 13, and the grout stopping sheet 14 is made of a steel sheet and can prevent the grout from flowing out along a gap between the sand layer and the grouting tube.
(1) Grouting pump:
the grouting pump 11 adopts a common low-pressure grouting pump, and the grouting pressure is 0.1-0.6 MPa.
(2) High-pressure rubber pipes:
the high-pressure rubber pipe 12 is a rubber hose with an inner diameter of 15 mm.
(2) Grouting pipes:
as shown in FIG. 8, the grouting pipe 13 is composed of an inner pipe 131, a bearing 133 and an outer sleeve 132, the inner pipe 131 is an iron pipe with an outer diameter of 15mm and a thickness of 1mm, the upper end of the inner pipe 131 is connected with a high-pressure rubber pipe, 5 rows of small holes with a thickness of 3mm are arranged in a range of 5cm at the lower end of the inner pipe 131, and each row of small holes with a thickness of 4 are used as grouting holes. The outer sleeve 132 is made of an iron pipe with the outer diameter of 37mm, the outer sleeve 132 is sleeved outside the inner pipe, the upper end and the lower end of the outer sleeve are respectively connected with the inner pipe through bearings 133 to realize that the inner pipe moves up and down along with the outer pipe and does not rotate along with the outer pipe, and threads are engraved on the outer surface of the outer sleeve and are used for being connected with the grout stopping sheet.
(3) And (3) slurry stopping sheets:
in the structure of the stop-grouting piece 14 shown in fig. 9, the stop-grouting piece 14 is a circular iron piece with a diameter of 180mm, a through hole 141 with a diameter of 37mm is reserved in the middle, and a thread is engraved in the through hole and used for connecting with the outer sleeve 132. If the stop plate 14 is fixed, the outer sleeve 132 can move up and down due to the screw thread between the outer sleeve 132 and the through hole 141 when the outer sleeve 132 rotates. The slurry stopping sheet 14 is welded with an anti-slip sheet 142 for fixing the slurry stopping sheet.
The embodiment of the utility model provides an experimental facilities has following advantage:
(1) the experimental equipment realizes the simulation of deep soil layer pressure and pore water pressure, and can simulate the grouting construction of real stratums more vividly. The problem that in the existing indoor grouting model experiment, only the porosity is considered to be consistent with the actual stratum, the upper soil layer pressure and the pore water pressure are not considered, and the soil body model used in the grouting model experiment is greatly different from the actual soil layer is solved.
(2) This experimental facilities is through the setting of only thick liquid piece, can effectual solution bleeding problem, can apply great pressure when the slip casting experiment, and the soil layer of having overcome most present model experiments is more shallow, if the excessive bleeding very easily appears of pressure when the simulation slip casting for can not apply the problem of great pressure when slip casting.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A grouting experiment device is characterized by comprising:
an actual formation simulation device and a grouting device; wherein,
the actual formation simulation apparatus includes: the device comprises a pressurizing plug, a model box, an air compressor and a pressure monitoring device; the pressurizing plug is movably arranged in the model box, a plug rod at the upper end of the pressurizing plug is movably arranged in an upper end opening of the model box, the pressurizing plug can move in the model box, the space above the pressurizing plug in the model box is a pressurizing chamber, and the space below the pressurizing plug in the model box is a sand storage chamber; the air compressor is communicated with a pressurizing cabin in the model box through a pipeline; the detection end of the pressure monitoring device is arranged in a sand storage cabin in the model box;
and a grouting pipe of the grouting device extends into a sand storage cabin arranged in the model box.
2. The apparatus of claim 1, wherein the mold box is comprised of a sand reservoir, a floor, a sealing cover, and a stiffener;
the sand storage cylinder is of a cylindrical structure;
the bottom plate is covered on the bottom opening of the sand storage barrel in a sealing manner;
the sealing cover is arranged on an opening at the top of the sand storage barrel, and an opening is arranged in the middle of the sealing cover and serves as an upper end opening of the model box;
the stiffening rod is connected between the sealing cover and the bottom plate, and the stiffening rod is positioned outside the sand storage cylinder.
3. The apparatus of claim 2, wherein a sealing ring is arranged at the contact position of the sealing cover and the top opening of the sand storage barrel.
4. The apparatus according to claim 1 or 2, characterized in that the upper opening of the mold box is provided with a seal at the contact between the upper opening and the plug stem at the upper end of the pressurizing plug.
5. The apparatus according to claim 1 or 2, characterized in that the bottom of the plug rod of the pressurizing plug is provided with a plug body, and the shape of the plug body is matched with the shape of the accommodating space in the mold box;
the periphery of the plug body is provided with a sealing ring for sealing the contact part between the periphery of the plug body and the inner wall of the model box;
and a hollow channel for a grouting pipe of the grouting device to penetrate is arranged in the middle of the plug rod and the plug body.
6. The apparatus of claim 1, wherein the grouting device comprises: grouting pump, high pressure rubber pipe and stop sheet;
the grouting pump is connected with the input port of the grouting pipe through the high-pressure rubber pipe;
the grout stopping sheet is arranged on the grouting pipe above the grouting head and is positioned in a sand storage cabin in the mold box.
7. The apparatus according to claim 1 or 6, wherein the grouting pipe is composed of an outer sleeve, an inner pipe, and a bearing; the outer sleeve is shorter than the inner pipe, the outer sleeve is sleeved outside the inner pipe, and the bearings are arranged at two ends of the outer sleeve and connected with the pipe body of the inner pipe;
the front end of the inner pipe outside the outer sleeve is provided with a plurality of slurry discharging holes;
and the outer surface of the outer sleeve is provided with threads for arranging the grout stopping sheet.
8. The apparatus of claim 7, wherein the grout tube further comprises: the spanner, the spanner setting is in the outer tube upper end.
9. The apparatus according to claim 6, characterized in that the grout stop is circular, and a through hole with internal thread is arranged at the middle part of the grout stop;
and a plurality of anti-slip sheets are arranged on the surface of the grout stopping sheet.
10. The apparatus of claim 7, wherein the cleat is arcuate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839330.0U CN203658354U (en) | 2013-12-18 | 2013-12-18 | Grouting experimental equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839330.0U CN203658354U (en) | 2013-12-18 | 2013-12-18 | Grouting experimental equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658354U true CN203658354U (en) | 2014-06-18 |
Family
ID=50924731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320839330.0U Expired - Lifetime CN203658354U (en) | 2013-12-18 | 2013-12-18 | Grouting experimental equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658354U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645306A (en) * | 2013-12-18 | 2014-03-19 | 中国地质大学（北京） | Grouting experiment equipment |
| CN109991158A (en) * | 2019-03-22 | 2019-07-09 | 湖南城市学院 | The push pipe of push pipe experimental box |
| CN112345564A (en) * | 2020-10-23 | 2021-02-09 | 中国矿业大学(北京) | Simple and easy device of hand formula laboratory slip casting |
-
2013
- 2013-12-18 CN CN201320839330.0U patent/CN203658354U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645306A (en) * | 2013-12-18 | 2014-03-19 | 中国地质大学（北京） | Grouting experiment equipment |
| CN103645306B (en) * | 2013-12-18 | 2016-07-06 | 中国地质大学（北京） | Slip casting experimental facilities |
| CN109991158A (en) * | 2019-03-22 | 2019-07-09 | 湖南城市学院 | The push pipe of push pipe experimental box |
| CN112345564A (en) * | 2020-10-23 | 2021-02-09 | 中国矿业大学(北京) | Simple and easy device of hand formula laboratory slip casting |
| CN112345564B (en) * | 2020-10-23 | 2021-09-17 | 中国矿业大学(北京) | Simple and easy device of hand formula laboratory slip casting |
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