CN212180536U - Device for testing water resistance of shield tail sealing grease - Google Patents
Device for testing water resistance of shield tail sealing grease Download PDFInfo
- Publication number
- CN212180536U CN212180536U CN202020830698.0U CN202020830698U CN212180536U CN 212180536 U CN212180536 U CN 212180536U CN 202020830698 U CN202020830698 U CN 202020830698U CN 212180536 U CN212180536 U CN 212180536U
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- Prior art keywords
- water
- grease
- shield tail
- tail sealing
- spraying
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- 239000004519 grease Substances 0.000 title claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000002699 waste material Substances 0.000 claims abstract description 20
- 238000005303 weighing Methods 0.000 claims abstract description 20
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 239000011550 stock solution Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 239000013535 sea water Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a device for testing the water-flushing resistance of shield tail sealing grease, which belongs to the technical field of shield tail sealing grease performance detection, and comprises a grease metal plate and a workbench, wherein the workbench is provided with a spraying system, a water storage system, a mud and mortar storage system, a control system, a waste liquid collecting system and a weighing system; the utility model can rapidly and accurately quantitatively analyze the loss rate of the shield tail sealing grease, and can reflect the influence of the temperature and pressure change on the water resistance of the shield tail sealing grease; in addition, the influence of the mud mortar on the water flushing resistance of the shield tail sealing grease is set, shield tail sealing construction is simulated more truly, and the shield tail sealing device is reasonable and compact in structure, simple and convenient in operation process, low in price, high in working efficiency and high in accuracy.
Description
Technical Field
The utility model relates to a shield tail seals grease performance and detects technical field, specifically is a test shield tail seals grease water resistance nature device.
Background
With the development of railway tunnels, highway tunnels, urban subways, river-crossing tunnels, diversion tunnels, municipal pipelines and underground pedestrian passages, the shield has become a main method for tunnel and underground engineering construction due to the advantages of high automation degree, safety, high efficiency, small harm to the environment and the like. In the shield tunneling process, the pipe piece is static, and the shield body is connected and moved, so that relative sliding exists between the shield tail and the installed pipe piece, and in order to prevent external sewage, silt and the like from entering the shield body, sealing treatment must be carried out between the shield tail and the pipe piece. Particularly, when a large-diameter slurry shield is constructed in a long distance, high water pressure and particularly in a complex stratum, shield tail sealing is of great importance, the shield tail sealing failure can directly cause the shield to be incapable of normally tunneling, and accidents such as segment instability and tunnel collapse can be caused in serious conditions.
The water resistance and the water pressure resistance are two important indexes for ensuring the effective sealing of shield tail sealing grease in the large-diameter slurry balance shield process. A method commonly used for testing the water flushing resistance of shield tail sealing grease is to use a water gun to flush the surface of the grease for qualitative judgment. Utility model patent CN204964361U provides a water-washed tester that can obtain the mixed solution of the grease that is washed away by the water-washed and ejection water is used for testing the water pressure resistance leakproofness of sea water to shield tail sealing grease, but its shortcoming is that the water (sea water, lake water, river water etc.) of different temperatures can't be tested to shield tail sealing grease water-washed resistance. In addition, in a real shield tail sealing project, silt and water are often accompanied, and how to judge the water flushing resistance of the water containing the silt to the shield tail sealing grease at different temperatures is also very important.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test shield tail sealing grease anti water-washed nature device to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a device for testing the water flushing resistance of shield tail sealing grease comprises a grease metal plate and a workbench, wherein a spraying system, a water storage system, a silt storage system, a control system, a waste liquid collecting system and a weighing system are arranged on the workbench; the spraying system is used for spraying water and slurry on the grease metal plate; the water storage system is used for providing a water source for the spraying system; the silt storage system is used for providing silt for the spraying system; the control system is used for controlling the water storage system, the silt storage system and the spraying system; the waste liquid collecting system is used for collecting water, grease and silt slurry; the weighing system is used for weighing the weight of the grease metal plate before and after the test.
As a further technical solution of the present invention: the spraying system comprises a spraying box, a placing table for placing the grease metal plate is installed in the spraying box, a nozzle is installed above the placing table and is connected with a water storage system and a mud and mortar storage system through a first rubber pipe and a second rubber pipe respectively, a bypass valve and a water pump are installed on the first rubber pipe and the second rubber pipe respectively, and a liquid outlet is formed in the bottom of the spraying box.
As a further technical solution of the present invention: the water storage system comprises a water storage tank, and a spiral heating pipe is installed in the water storage tank.
As the utility model discloses a further technical scheme again: store up silt particle system and include double-deck stock solution cauldron, install the stirring rod that is used for stirring silt particle in the double-deck stock solution cauldron, the stirring rod upper end runs through double-deck stock solution cauldron and rotates rather than being connected, double-deck stock solution cauldron top outside fixed mounting has the motor, the output and the stirring rod upper end fixed connection of motor.
As the utility model discloses a further technical scheme again: the control system includes a controller.
As the utility model discloses a further technical scheme again: the waste liquid collecting system comprises a waste liquid collecting barrel, and the waste liquid collecting barrel is connected with a liquid outlet through a waste liquid pipe
Compared with the prior art, the beneficial effects of the utility model are that: the method can quickly and accurately quantitatively analyze the loss rate of the shield tail sealing grease, and can reflect the influence of the temperature and pressure change of water on the water flushing resistance of the shield tail sealing grease; in addition, the influence of the mud mortar on the water flushing resistance of the shield tail sealing grease is set, shield tail sealing construction is simulated more truly, and the shield tail sealing device is reasonable and compact in structure, simple and convenient in operation process, low in price, high in working efficiency and high in accuracy.
Drawings
Fig. 1 is a schematic structural diagram of a device for testing the water resistance of shield tail sealing grease.
In the figure: 1-a spray box, 2-a nozzle, 3-a bypass valve, 4-a first rubber pipe, 5-a second rubber pipe, 6-a placing table, 7-a grease metal plate, 8-a liquid outlet, 9-a workbench, 10-an electronic scale, 11-a water storage tank, 12-a double-layer liquid storage kettle, 13-a motor, 14-a controller, 15-a waste liquid collecting barrel, 16-a spiral heating pipe and 17-a stirring rod.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
The device for testing the water resistance of the shield tail sealing grease shown in fig. 1 comprises a grease metal plate 7 and a workbench 9, wherein a spraying system, a water storage system, a mud and mortar storage system, a control system, a waste liquid collecting system and a weighing system are arranged on the workbench 9; the spraying system is used for spraying water and slurry on the grease metal plate 7; the water storage system is used for providing a water source for the spraying system; the silt storage system is used for providing silt for the spraying system; the control system is used for controlling the water storage system, the silt storage system and the spraying system; the waste liquid collecting system is used for collecting water, grease and silt slurry; the weighing system is used for weighing the weight of the grease metal plate 7 before and after the test.
The spraying system comprises a spraying box 1, a placing table 6 for placing a grease metal plate 7 is installed in the spraying box 1, a nozzle 2 is installed above the placing table 6, the nozzle 2 is connected with a water storage system and a mud and sand slurry storage system through a first rubber pipe 4 and a second rubber pipe 5 respectively, a bypass valve 3 and a water pump are installed on the first rubber pipe 4 and the second rubber pipe 5, and a liquid outlet 8 is formed in the bottom of the spraying box 1.
The water storage system comprises a water storage tank 11, and a spiral heating pipe 16 is installed in the water storage tank 11.
Store up silt particle system and include double-deck stock solution cauldron 12, install the stirring rod 17 that is used for stirring silt particle in the double-deck stock solution cauldron 12, stirring rod 17 upper end runs through double-deck stock solution cauldron 12 and rotates rather than being connected, double-deck stock solution cauldron 12 top outside fixed mounting has motor 13, motor 13's output and stirring rod 17 upper end fixed connection.
The control system includes a controller 14.
The waste liquid collecting system comprises a waste liquid collecting barrel 15, and the waste liquid collecting barrel 15 is connected with the liquid outlet 8 through a waste liquid pipe.
The weighing system includes an electronic scale 10.
The working principle is as follows: the grease metal plate 7 is weighed by an electronic scale 10, the mass is m0The grease metal plate 7 is placed on the placing table 6, the temperature and the spraying pressure of water in the water storage tank 11 are set, and spraying is startedSpraying, closing after 5-10min, stopping spraying, drying the steel plate in a 60 ℃ oven for 12h, and weighing the weight m of the grease metal plate 7tTherefore, the water impact resistance of the shield tail sealing grease was evaluated by the grease run-off rate, and the above procedure was repeated five times and the average value was taken.
The shield tail sealing grease loss rate calculation formula is as follows:
in the formula:
s, the loss rate of the seal grease at the tail of the shield,%;
m0-metal sheets of grease 7, g;
mtthe mass g of the sprayed grease metal plate 7.
The specific measurement process is as follows:
1) step a: weighing a grease metal plate 7 (namely the metal plate coated with shield tail sealing grease) by using an electronic scale 10, wherein the mass is 100g, opening a spray box 1, placing the grease metal plate 7 on a placing table 6, pouring seawater into a water storage tank 11, setting the temperature of the water to be 25 ℃ and the spray pressure to be 0.28MPa, and starting spraying;
step b: closing after spraying for 5min, stopping spraying, injecting a mixed liquid of water and grease in the spraying box 1 into the spraying box 1, taking out the sprayed grease metal plate 7 through a lifting device, sucking away the grease and the water, drying the grease metal plate 7 in an oven at 60 ℃ for 12h, and weighing 99.12 g;
step c: the water impact resistance of the shield tail sealing grease is evaluated by the grease loss rate, the steps are repeated for five times, the grease loss rate is respectively 0.88%, 0.87%, 0.89%, 0.85% and 0.83%, and finally the shield tail sealing grease loss rate is 0.864%.
2) Step a: weighing a grease metal plate 7 by using an electronic scale 10, wherein the mass of the grease metal plate 7 is 100g, and opening a spraying box 1 to place the grease metal plate 7 on a placing table 6;
step b: pouring seawater and silt slurry into a double-layer liquid storage kettle 12, opening a motor 13, setting the temperature of the silt slurry to be 3 ℃ and the spraying pressure to be 0.28MPa, starting spraying, closing the motor 13 after spraying for 5min, stopping spraying, injecting a water and grease mixed liquid in a spraying box 1 into the spraying box 1, taking out a sprayed grease metal plate 7 after rising through a lifting device, sucking away grease and water, drying the grease metal plate 7 in a 60 ℃ oven for 12h, and weighing 98.8 g;
step c: the water impact resistance of the shield tail sealing grease is evaluated by the grease loss rate, the steps are repeated for five times, the grease loss rate is respectively 1.20%, 1.25%, 1.23%, 1.26% and 1.22%, and finally the shield tail sealing grease loss rate is 1.232%.
3) Step a: weighing a grease metal plate 7 by using an electronic scale 10, wherein the mass of the grease metal plate 7 is 100g, and opening a spraying box 1 to place the grease metal plate 7 on a placing table 6;
step b: pouring seawater and slurry into a double-layer liquid storage kettle 12, pouring seawater into a water storage tank 11, turning on a motor 13, setting the temperature of the slurry to be 3 ℃ and the spraying pressure to be 0.28MPa, the temperature of the water to be 20 ℃ and the spraying pressure to be 0.28MPa, starting simultaneous spraying, stopping spraying after 5min of spraying, injecting a water and grease mixed liquid in a spraying box 1 into the spraying box 1, weighing a grease metal plate 7 by using an electronic scale 10 after spraying through a lifting device, wherein the mass of the grease metal plate 7 is 100g, opening the spraying box 1, placing the grease metal plate 7 on a placing table 6, taking out, sucking away grease and water, drying the grease metal plate 7 in a 60 ℃ oven for 12h, and weighing the weight of a coated steel plate to be 97.54 g;
step c: the water impact resistance of the shield tail sealing grease is evaluated by the grease loss rate, the steps are repeated for five times, the grease loss rate is respectively 2.46%, 2.51%, 2.43%, 2.45% and 2.52%, and finally the shield tail sealing grease loss rate is 2.474%.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a test shield tail sealing grease anti water-washed nature device, includes grease metal sheet (7) and workstation (9), its characterized in that: a spraying system, a water storage system, a mud and mortar storage system, a control system, a waste liquid collecting system and a weighing system are arranged on the workbench (9); the spraying system is used for spraying water and slurry on the grease metal plate (7); the water storage system is used for providing a water source for the spraying system; the silt storage system is used for providing silt for the spraying system; the control system is used for controlling the water storage system, the silt storage system and the spraying system; the waste liquid collecting system is used for collecting water, grease and silt slurry; the weighing system is used for weighing the weight of the grease metal plate (7) before and after the test.
2. The device for testing the water resistance of the shield tail sealing grease according to claim 1, is characterized in that: the spraying system comprises a spraying box (1), a placing table (6) used for placing a grease metal plate (7) is installed in the spraying box (1), a nozzle (2) is installed above the placing table (6), the nozzle (2) is connected with a water storage system and a mud mortar storage system through a first rubber pipe (4) and a second rubber pipe (5) respectively, a bypass valve (3) and a water pump are installed on the first rubber pipe (4) and the second rubber pipe (5), and a liquid outlet (8) is formed in the bottom of the spraying box (1).
3. The device for testing the water resistance of the shield tail sealing grease according to claim 1, is characterized in that: the water storage system comprises a water storage tank (11), and a spiral heating pipe (16) is installed in the water storage tank (11).
4. The device for testing the water resistance of the shield tail sealing grease according to claim 1, is characterized in that: store up silt particle system and include double-deck stock solution cauldron (12), install stirring rod (17) that are used for stirring silt particle in double-deck stock solution cauldron (12), stirring rod (17) upper end runs through double-deck stock solution cauldron (12) and rotates rather than being connected, double-deck stock solution cauldron (12) top outside fixed mounting has motor (13), the output and the stirring rod (17) upper end fixed connection of motor (13).
5. The device for testing the water resistance of the shield tail sealing grease according to claim 1, is characterized in that: the control system includes a controller (14).
6. The device for testing the water resistance of the shield tail sealing grease according to claim 2, is characterized in that: the waste liquid collecting system comprises a waste liquid collecting barrel (15), and the waste liquid collecting barrel (15) is connected with the liquid outlet (8) through a waste liquid pipe.
7. The device for testing the water resistance of the shield tail sealing grease according to claim 1, is characterized in that: the weighing system comprises an electronic scale (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830698.0U CN212180536U (en) | 2020-05-18 | 2020-05-18 | Device for testing water resistance of shield tail sealing grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830698.0U CN212180536U (en) | 2020-05-18 | 2020-05-18 | Device for testing water resistance of shield tail sealing grease |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212180536U true CN212180536U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020830698.0U Expired - Fee Related CN212180536U (en) | 2020-05-18 | 2020-05-18 | Device for testing water resistance of shield tail sealing grease |
Country Status (1)
| Country | Link |
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| CN (1) | CN212180536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459999A (en) * | 2022-03-22 | 2022-05-10 | 铁正检测科技有限公司 | Shield tail sealing grease water flow washout resistance test device |
| CN115993302A (en) * | 2023-03-22 | 2023-04-21 | 中铁工程服务有限公司 | Shield tail grease detection device and detection method |
-
2020
- 2020-05-18 CN CN202020830698.0U patent/CN212180536U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459999A (en) * | 2022-03-22 | 2022-05-10 | 铁正检测科技有限公司 | Shield tail sealing grease water flow washout resistance test device |
| CN114459999B (en) * | 2022-03-22 | 2024-04-26 | 铁正检测科技有限公司 | Shield tail sealing grease water-flow-resistance washout test device |
| CN115993302A (en) * | 2023-03-22 | 2023-04-21 | 中铁工程服务有限公司 | Shield tail grease detection device and detection method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201218 |