CN112763400A - Accelerated corrosion degradation test device for bearing shield tunnel segment under high water pressure effect - Google Patents
Accelerated corrosion degradation test device for bearing shield tunnel segment under high water pressure effect Download PDFInfo
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- CN112763400A CN112763400A CN202011640610.XA CN202011640610A CN112763400A CN 112763400 A CN112763400 A CN 112763400A CN 202011640610 A CN202011640610 A CN 202011640610A CN 112763400 A CN112763400 A CN 112763400A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Abstract
The invention relates to a test device for accelerated corrosion degradation of a shield tunnel segment under the action of high water pressure, which comprises a high water pressure accelerated corrosion degradation device and a horizontal mechanical loading device for applying horizontal force to the test segment, wherein two sides of the test segment are respectively supported on the horizontal mechanical loading device, two sides of the test segment are respectively contacted with the horizontal mechanical loading device, the high water pressure accelerated corrosion degradation device comprises a pressurized corrosion water tank and a pressurizing device, the pressurized corrosion water tank is arranged at the upper end of the test segment, and the pressurizing device is communicated with the pressurized corrosion water tank and is used for applying pressure to the pressurized corrosion water tank and reading a pressure value through a pressure detection device. The invention can truly realize the mechanical property of the shield tunnel lining structure under the combined action of the water and soil load environment and the surrounding erosion degradation environment for a long time, and the stress strain, deformation, steel bar corrosion state, crack generation and development condition and the like of the segment test piece are tested by the segment stress performance testing system.
Description
Technical Field
The invention relates to an accelerated corrosion device for a shield tunnel prototype segment structure, in particular to a test device for accelerated corrosion degradation of a bearing shield tunnel segment under the action of high water pressure.
Background
At present, an accelerated corrosion test for a tunnel lining structure is mainly carried out on a corrosion solution under a non-pressure state, the corrosion solution is generally distributed in a component test area (or a component is soaked) and electrified to be corroded, then a corroded test piece or component is loaded, and mechanical and engineering characteristics such as strength, rigidity, damage condition and the like of the corroded test piece or component are tested. The test method is not consistent with the real environment of the tunnel segment lining, and the corrosion environment of the tunnel lining cannot be truly reflected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a test device for accelerated corrosion degradation of a bearing shield tunnel segment under the action of high water pressure, which considers the characteristic that a shield tunnel lining structure is under the combined action of a water and soil load environment and a surrounding corrosion degradation environment for a long time in the actual service period.
The technical scheme of the invention is realized as follows: the invention discloses a device for testing accelerated corrosion degradation of a shield tunnel segment under the action of high water pressure, which comprises a high water pressure accelerated corrosion degradation device and a horizontal mechanical loading device for applying horizontal force to the test segment, wherein two sides of the test segment are respectively supported on the horizontal mechanical loading device, two sides of the test segment are respectively contacted with the horizontal mechanical loading device, the high water pressure accelerated corrosion degradation device comprises a pressurized corrosion water tank and a pressurizing device, the pressurized corrosion water tank is arranged at the upper end of the test segment, and the pressurizing device is communicated with the pressurized corrosion water tank and is used for applying pressure to the pressurized corrosion water tank and reading a pressure value through a pressure detection device.
The accelerated corrosion degradation test device for the shield tunnel segment under the action of the high water pressure also comprises a vertical mechanical loading device for applying vertical force to the test segment, wherein the vertical mechanical loading device is positioned above the test segment and is in contact with the upper end of the test segment.
Further, the horizontal mechanical loading device comprises a left loading beam, a right loading beam, a left segment supporting seat, a right segment supporting seat, a first power driving device and a transverse pull rod, wherein the left segment supporting seat and the right segment supporting seat are respectively positioned at the left side and the right side of the test segment and are used for respectively contacting and supporting the two sides of the test segment; the vertical mechanics loading device comprises an upper loading beam, a base, a loading head and a vertical pull rod, wherein the loading head is positioned above the test segment and is in contact with the top of the test segment, the loading head is connected with a second power driving device, the second power driving device is connected with the upper loading beam and is used for applying vertical force to the test segment, the upper end of the vertical pull rod is connected with the upper loading beam, and the lower end of the vertical pull rod is connected with the base.
Furthermore, the left loading beam and the right loading beam are fixed on the base.
Further, left section of jurisdiction supporting seat, right section of jurisdiction supporting seat all include the pedestal and are used for supporting the backup pad of experimental section of jurisdiction, the backup pad slope sets up on the pedestal, and the backup pad on the backup pad of left section of jurisdiction supporting seat sets up with the backup pad on the right section of jurisdiction supporting seat relatively, and the interval between two backup pads upper ends is greater than the interval between two backup pad lower extremes.
Furthermore, a horizontal pressure sensor is arranged between the right segment supporting seat and the first power driving device; and a vertical pressure sensor is arranged between the loading head and the second power driving device, the horizontal pressure sensor and the vertical pressure sensor are respectively connected with the input end of the console, the output end of the console is connected with a power driving system, and the power driving system is used for controlling the first power driving device and the second power driving device to realize the regulation of applying pressure on the test segment.
The first power driving device and the second power driving device are hydraulic jacks.
Furthermore, a cathode stainless steel mesh is placed in the pressurized corrosion water tank, the cathode stainless steel mesh is electrically connected with the cathode of the steady-current direct-current power supply through a conducting wire, and the reinforcing steel bar of the test tube piece is electrically connected with the anode of the steady-current direct-current power supply through the conducting wire.
Furthermore, the pressurized corrosion water tank comprises four side tank walls and a tank top, the four side tank walls and the tank top enclose the top of the test segment to form a sealed pressurized corrosion water tank, sealing gaskets are respectively arranged between the four side tank walls and the top of the test segment, and a pressurizing opening is arranged on the tank wall or the tank top of the pressurized corrosion water tank and is communicated with pressurizing equipment through a pipeline.
Further, the pressure detection device is used for detecting the pressure value in the pressurized corrosion water tank and displaying or transmitting the pressure value to the console; the pressurizing equipment is connected with the control console; the pressure detection device adopts a pressure gauge, and the pressurizing equipment adopts a pressurizing pump.
The accelerated corrosion degradation test device for the shield tunnel segment under the action of high water pressure also comprises a stress performance test system, wherein the stress performance test system is used for testing the stress strain, deformation, steel bar corrosion state and crack generation and development conditions of the test segment.
The invention has at least the following beneficial effects: the accelerated corrosion degradation test device for bearing shield tunnel segments under the action of high water pressure comprises a mechanical loading device, wherein the mechanical loading device is used for applying working load to the segments, the accurate introduction of bending moment and axial force of the segments is realized through a control console and a power driving system, and the real stress state of the segment structure in a water and soil load environment is simulated.
The invention solves the problem that the existing corrosion test device can not pressurize a corrosive solution, so that the mechanical property of the shield tunnel lining structure under the action of high water pressure can not be simulated, a high water pressure corrosion degradation accelerating device is added on the basis of a mechanical loading device, the corrosive solution is pressurized through a pressurized corrosive water tank, the solution pressure is read through a pressure detection device, the pressure applied to the corrosive solution is controlled through a pressurizing device, so that the effect of accurately controlling the water pressure is achieved, the mechanical property of the shield tunnel lining structure under the combined action of a water and soil load environment and a surrounding corrosion degradation environment for a long time can be real, and a segment stress performance test system is used for testing the stress strain, deformation, the steel bar corrosion state, the crack generation and development condition and the like of a segment test piece.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test device for accelerated corrosion degradation of segments of a bearing shield tunnel under the action of high water pressure.
In the attached drawing, 1 is a horizontal mechanical loading device, 11 is a left loading beam, 12 is a right loading beam, 13 is a left segment supporting seat, 14 is a right segment supporting seat, 15 is a transverse pull rod, 16 is a first power driving device, 2 is a vertical mechanical loading device, 21 is an upper loading beam, 22 is a base, 23 is a loading head, 24 is a vertical pull rod, 25 is a second power driving device, 3 is a pressurizing corrosion water tank, 4 is a pressure pump, 5 is a sealing gasket, 6 is a steady-current direct-current power supply, 7 is a conductive wire, 8 is a segment stress-strain testing system, 9 is a pressure gauge, and 10 is a test segment.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a test apparatus for accelerated corrosion degradation of a shield tunnel segment under high water pressure, including a high water pressure accelerated corrosion degradation apparatus and a horizontal mechanical loading apparatus 1 for applying a horizontal force to a test segment 10, where two sides of the test segment 10 are respectively supported on the horizontal mechanical loading apparatus 1, two sides of the test segment 10 are respectively in contact with the horizontal mechanical loading apparatus 1, the high water pressure accelerated corrosion degradation apparatus includes a pressurized corrosion water tank 3 and a pressurizing device, the pressurized corrosion water tank 3 is located at an upper end of the test segment 10, and the pressurizing device is communicated with the pressurized corrosion water tank 3 and is used for applying a pressure to the pressurized corrosion water tank 3 and reading a pressure value through a pressure detection apparatus. The invention adopts a high-water-pressure accelerated corrosion degradation device to carry out electrochemical accelerated corrosion on the segment structure, and simulates the influence of high water pressure and surrounding corrosion environment on the long-term weakening and degradation of the performance of the existing segment structure.
Further, the accelerated corrosion degradation test device for the shield tunnel segment under the action of high water pressure also comprises a vertical mechanical loading device 2 for applying vertical force to the test segment 10, wherein the vertical mechanical loading device 2 is positioned above the test segment 10 and is in contact with the upper end of the test segment 10.
The horizontal mechanics loading device 1 and the vertical mechanics loading device 2 are used for applying working load to the segment, and accurate introduction of bending moment and axial force of the segment is realized through the console and the power driving system, so that the real stress state of the segment structure in a water and soil load environment is simulated.
Further, the horizontal mechanics loading device 1 comprises a left loading beam 11, a right loading beam 12, a left segment supporting seat 13, a right segment supporting seat 14, a first power driving device 16 and a transverse pull rod 15, wherein the left segment supporting seat 13 and the right segment supporting seat 14 are respectively positioned at the left side and the right side of the test segment 10 and are used for respectively contacting and supporting the two sides of the test segment 10, the left segment supporting seat 13 is connected with the left loading beam 11, the right segment supporting seat 14 is connected with the first power driving device 16, the first power driving device 16 is connected with the right loading beam 12 and is used for applying horizontal force to the test segment 10, the left end of the transverse pull rod 15 is connected with the left loading beam 11, and the right end of the transverse pull rod 15 is connected with the right loading beam 12; the vertical mechanical loading device 2 comprises an upper loading beam 21, a base 22, a loading head 23 and a vertical pull rod 24, wherein the loading head 23 is positioned above the test segment 10 and is in contact with the top of the test segment 10, the loading head 23 is connected with a second power driving device 25, the second power driving device 25 is connected with the upper loading beam 21 and is used for applying vertical force to the test segment 10, the upper end of the vertical pull rod 24 is connected with the upper loading beam 21, and the lower end of the vertical pull rod 24 is connected with the base 22.
Further, there are at least two transverse tie rods 15. At least two vertical pull rods 24 are provided.
The cross tie rod 15 pulls the left load beam 11 and the right load beam 12 together, providing a counter force when loaded. The vertical tie rods 24 pull the upper load beam 21 and the base 22 together, providing a counter force when loaded.
The transverse pull rod 15 and the vertical pull rod 24 can adopt high-strength force transmission threaded pull rods, and the high-strength force transmission threaded pull rods penetrate through the loading beam or the base 22 and are in threaded connection with nuts. The high-strength force-transmission threaded pull rod can be in threaded connection with the loading beam or the base 22.
Further, the left load beam 11 and the right load beam 12 are fixed on the base 22.
Further, left section of jurisdiction supporting seat 13, right section of jurisdiction supporting seat 14 all include the pedestal and are used for supporting the backup pad of experimental section of jurisdiction 10, the backup pad slope sets up on the pedestal, and the backup pad on the left section of jurisdiction supporting seat 13 sets up with the backup pad on the right section of jurisdiction supporting seat 14 relatively, and the interval between two backup pads upper ends is greater than the interval between two backup pad lower extremes.
Further, a horizontal pressure sensor is arranged between the right segment supporting seat 14 and the first power driving device 16; and a vertical pressure sensor is arranged between the loading head 23 and the second power driving device 25, the horizontal pressure sensor and the vertical pressure sensor are respectively connected with the input end of the console, the output end of the console is connected with a power driving system, and the power driving system is used for controlling the first power driving device 16 and the second power driving device 25 to realize the regulation of applying pressure to the test segment 10.
The first power driving device 16 and the second power driving device 25 of the present invention use hydraulic jacks, but are not limited to hydraulic jacks.
Furthermore, a cathode stainless steel net is placed in the pressurized corrosion water tank 3, the cathode stainless steel net is electrically connected with the cathode of the steady-current direct-current power supply 6 through a conducting wire 7, and the steel bars of the test tube piece 10 are electrically connected with the anode of the steady-current direct-current power supply 6 through the conducting wire 7.
Further, the pressurized corrosion water tank 3 comprises four side tank walls and a tank top, the four side tank walls and the tank top enclose the top of the test segment 10 to form the sealed pressurized corrosion water tank 3, rubber gaskets 5 are respectively arranged between the four side tank walls and the top of the test segment 10, a pressurizing port is arranged on the tank wall or the tank top of the pressurized corrosion water tank 3, and the pressurizing port is communicated with pressurizing equipment through a pipeline.
Further, the pressure detection device is used for detecting the pressure value in the pressurized corrosion water tank 3 to display or transmit the pressure value to the console; the pressurizing equipment is connected with the control console; the pressure detection device of this embodiment adopts manometer 9, the pressurization equipment adopts force (forcing) pump 4. Of course, the pressure detecting device of the present invention is not limited to the pressure gauge 9 only. The pressurizing apparatus of the present invention is not limited to the pressurizing pump 4.
The accelerated corrosion degradation test device for the shield tunnel segment under the action of high water pressure also comprises a segment stress-strain test system 8, wherein the segment stress-strain test system 8 is used for testing the stress strain, deformation, steel bar corrosion state, crack generation and development conditions and the like of the test segment 10. The segment stress-strain test system 8 of the present invention can be an existing segment stress-strain test system, and will not be described in detail herein.
For real-time control of the mechanical loading, the following steps can be taken:
setting a horizontal target pressure P to be applied in a consolehAnd a vertical target pressure PvAnd a set value m, the console controls the force applied by the force driving system;
the vertical pressure sensor and the horizontal pressure sensor respectively measure the horizontal pressure P1Vertical pressure P2The data is input to a console, and the console judges as follows: when P is present1-PhIs < 0 and
the console then controls the output of the primary power drive means 16 to continue to approach the duct piece as it approaches the duct piece
After reaching m, triggering a slow pressurization. When P is present1-PhIs < 0 and
when the control console controls the output end of the first power driving device 16 to slow down the approaching of the segment until P1＝PhStopping; when P is present2-PvIs < 0 and
when the control console controls the output end of the second power driving device 25 to continuously approach the duct piece, when P is reached2-PvIs < 0 and
when the control console controls the output end of the second power driving device 25 to slow down the approaching of the segment until P2＝PvStopping; when P is present1＝Ph，P2＝PvAnd then, the control console controls the relative positions of the output ends of the first power driving device 16 and the second power driving device 25 and the segment to be kept constant, and the test is carried out by using the target pressures Ph and Pv.
In this embodiment, m is 0.5%, and of course, the value of m can be adjusted as needed. m (e.g., 0.5%) is data for the controller to easily determine the pressure difference, and the pressure is continuously applied when the difference between the actual pressure and the set pressure is above m (e.g., 0.5%), and is slowly applied when the difference is less than m (e.g., 0.5%) to avoid the pressure exceeding the set value too quickly.
When the invention is used for testing, the numerical values of bending moment, axial force, water pressure and the like which need to be applied are set through the console; then, a power driving system drives a mechanical loading device to apply working load to the segment, so that the bending moment and the axial force of the segment are accurately introduced, and the real stress state of the segment structure in a water and soil load environment is simulated; meanwhile, the pressure pump 4 applies pressure to the pressurized corrosion water tank 3, the pressure value is read through the pressure gauge 9, and the steady-current direct-current power supply 6 supplies power to the cathode stainless steel mesh and the corrosion solution in the pressurized corrosion water tank 3 so as to accelerate the corrosion of the segment structure; the stress strain, deformation, steel bar corrosion state, crack generation and development conditions and the like of the segment test piece are tested by the stress performance testing system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a bear shield tunnel section of jurisdiction accelerated corrosion degradation test device under high water pressure effect which characterized in that: including high water pressure corrosion degradation device with higher speed and be used for exerting the horizontal mechanics loading device of level to power for experimental section of jurisdiction, the both sides of experimental section of jurisdiction are supported respectively on horizontal mechanics loading device, and the both sides of experimental section of jurisdiction contact with horizontal mechanics loading device respectively, high water pressure corrosion degradation device with higher speed includes pressurization corrosion basin, pressure equipment, pressurization corrosion basin sets up the upper end at experimental section of jurisdiction, pressure equipment and pressurization corrosion basin intercommunication for exert pressure in for pressurization corrosion basin, and read pressure numerical value through pressure detection device.
2. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 1, characterized in that: the device is characterized by further comprising a vertical mechanical loading device for applying vertical force to the test tube piece, wherein the vertical mechanical loading device is located above the test tube piece and is in contact with the upper end of the test tube piece.
3. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 2, characterized in that: the horizontal mechanical loading device comprises a left loading beam, a right loading beam, a left segment supporting seat, a right segment supporting seat, a first power driving device and a transverse pull rod, wherein the left segment supporting seat and the right segment supporting seat are respectively positioned at the left side and the right side of a test segment and are used for respectively contacting and supporting the two sides of the test segment; the vertical mechanics loading device comprises an upper loading beam, a base, a loading head and a vertical pull rod, wherein the loading head is positioned above the test segment and is in contact with the top of the test segment, the loading head is connected with a second power driving device, the second power driving device is connected with the upper loading beam and is used for applying vertical force to the test segment, the upper end of the vertical pull rod is connected with the upper loading beam, and the lower end of the vertical pull rod is connected with the base.
4. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 3, characterized in that: the left loading beam and the right loading beam are fixed on the base.
5. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 3, characterized in that: left section of jurisdiction supporting seat, right section of jurisdiction supporting seat all include the pedestal and are used for supporting the backup pad of experimental section of jurisdiction, the backup pad slope sets up on the pedestal, and the backup pad on the backup pad of left section of jurisdiction supporting seat sets up with the backup pad on the right section of jurisdiction supporting seat relatively, and the interval between two backup pads upper ends is greater than the interval between two backup pads lower extremes.
6. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 3, characterized in that: a horizontal pressure sensor is arranged between the right segment supporting seat and the first power driving device; a vertical pressure sensor is arranged between the loading head and the second power driving device, the horizontal pressure sensor and the vertical pressure sensor are respectively connected with the input end of the console, the output end of the console is connected with a power driving system, and the power driving system is used for controlling the first power driving device and the second power driving device to realize the regulation of applying pressure on the test segment;
the first power driving device and the second power driving device adopt hydraulic jacks.
7. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 1, characterized in that: the cathode stainless steel mesh is placed in the pressurized corrosion water tank, the cathode stainless steel mesh is electrically connected with the cathode of the steady-current direct-current power supply through a conducting wire, and the reinforcing steel bars of the test tube piece are electrically connected with the anode of the steady-current direct-current power supply through the conducting wire.
8. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 1, characterized in that: the pressurized corrosion water tank comprises four side tank walls and a tank top, the four side tank walls and the tank top enclose the top of the test segment to form a sealed pressurized corrosion water tank, sealing gaskets are respectively arranged between the four side tank walls and the top of the test segment, and a pressurizing opening is arranged on the tank wall or the tank top of the pressurized corrosion water tank and is communicated with pressurizing equipment through a pipeline.
9. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 1, characterized in that: the pressure detection device is used for detecting the pressure value in the pressurized corrosion water tank and displaying or transmitting the pressure value to the console; the pressurizing equipment is connected with the control console; the pressure detection device adopts a pressure gauge, and the pressurizing equipment adopts a pressurizing pump.
10. The accelerated corrosion degradation test device for the segments of the bearing shield tunnel under the action of high water pressure as recited in claim 1, characterized in that: the stress performance testing system is used for testing stress strain, deformation, steel bar corrosion state and crack generation and development conditions of the test segment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011640610.XA CN112763400A (en) | 2020-12-31 | 2020-12-31 | Accelerated corrosion degradation test device for bearing shield tunnel segment under high water pressure effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011640610.XA CN112763400A (en) | 2020-12-31 | 2020-12-31 | Accelerated corrosion degradation test device for bearing shield tunnel segment under high water pressure effect |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295513A (en) * | 2021-06-09 | 2021-08-24 | 北京科技大学 | Stress corrosion test system and test method for reinforced concrete drainage pipeline |
| CN113390628A (en) * | 2021-05-20 | 2021-09-14 | 东南大学 | Device and method for testing waterproof performance degradation under circulating load action of shield segment sealing gasket |
| CN114279947A (en) * | 2021-12-28 | 2022-04-05 | 中山大学 | Experimental device and method for researching shield tunnel segment performance degradation mechanism |
| CN114813337A (en) * | 2022-04-06 | 2022-07-29 | 北京科技大学 | Stress corrosion test device and method for duct piece under continuous stress |
| CN117347252A (en) * | 2023-10-09 | 2024-01-05 | 中交三航(南通)海洋工程有限公司 | Corrosion-resistant degradation test device for shield tunnel segment |
| CN117347252B (en) * | 2023-10-09 | 2024-05-14 | 中交三航(南通)海洋工程有限公司 | Corrosion-resistant degradation test device for shield tunnel segment |
-
2020
- 2020-12-31 CN CN202011640610.XA patent/CN112763400A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390628A (en) * | 2021-05-20 | 2021-09-14 | 东南大学 | Device and method for testing waterproof performance degradation under circulating load action of shield segment sealing gasket |
| CN113295513A (en) * | 2021-06-09 | 2021-08-24 | 北京科技大学 | Stress corrosion test system and test method for reinforced concrete drainage pipeline |
| CN114279947A (en) * | 2021-12-28 | 2022-04-05 | 中山大学 | Experimental device and method for researching shield tunnel segment performance degradation mechanism |
| CN114279947B (en) * | 2021-12-28 | 2024-01-30 | 中山大学 | Experimental device and method for researching shield tunnel segment performance degradation mechanism |
| CN114813337A (en) * | 2022-04-06 | 2022-07-29 | 北京科技大学 | Stress corrosion test device and method for duct piece under continuous stress |
| CN117347252A (en) * | 2023-10-09 | 2024-01-05 | 中交三航(南通)海洋工程有限公司 | Corrosion-resistant degradation test device for shield tunnel segment |
| CN117347252B (en) * | 2023-10-09 | 2024-05-14 | 中交三航(南通)海洋工程有限公司 | Corrosion-resistant degradation test device for shield tunnel segment |
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