CN114526998B - Static test system and test method under confining pressure environment of arch structure - Google Patents
Static test system and test method under confining pressure environment of arch structure Download PDFInfo
- Publication number
- CN114526998B CN114526998B CN202111662912.1A CN202111662912A CN114526998B CN 114526998 B CN114526998 B CN 114526998B CN 202111662912 A CN202111662912 A CN 202111662912A CN 114526998 B CN114526998 B CN 114526998B
- Authority
- CN
- China
- Prior art keywords
- test piece
- test
- pressure
- confining pressure
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- G01N3/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The application provides a static pressure-bearing test system and a static pressure-bearing test method for an arch structure in a confining pressure environment, wherein the test system comprises a test piece, a bottom plate, a confining pressure simulation device and a test loading device, and the confining pressure simulation device consists of a bag cover, a closed bag, a side plate, a triangular column, an air pump and a control valve; the test loading device consists of an arc-shaped pressure plate, a hydraulic actuator, a cross beam, a sliding rail, a stand column, a mounting seat and a cross beam fixing seat. According to the test method, the arch structure confining pressure environment is simulated by inflating the closed bags, confining pressure changes at different positions are simulated by combining the closed bags with the inflating device, load loading is simulated by the hydraulic actuator and the arc-shaped pressure plate compression test piece, and the change of the current loading angle is simulated by sliding the cross beam on the sliding rail. The device has the advantages of compact structure, simple conversion operation and simulation conforming to the actual situation.
Description
Technical Field
The application relates to the civil engineering test technology, in particular to a static test system and a test method under an arch structure confining pressure environment.
Background
With the construction of underground projects such as mines, tunnels, caverns and the like under complex geological conditions, bearing problems faced by supporting structures are more and more prominent. The arch structure has wide application in supporting structures due to its good bearing capacity. The pressure-bearing capacity of the arch structure has an important influence on the safety of underground engineering. The static force bearing test is an important mode for determining the bearing performance of the supporting structure, can determine the mechanical performance of the arch structure and reveal the failure behavior of the arch structure, and has great significance on the safety of the supporting structure. At present, although a large number of static pressure-bearing test devices with arch structures exist, no unified test system standard exists. The existing test system adopts a plurality of hydraulic actuators or jacks to carry out test loading (such as CN105486586B, CN 104990720A), and has the following problems: 1) More test devices are needed, and a larger test field is occupied; 2) The loading mode of a plurality of hydraulic actuators or jacks also has higher requirements on the precision of cooperative loading; 3) The test piece needs to be subjected to pretreatment such as perforation and polishing, and the test time is greatly increased.
Disclosure of Invention
The application aims to provide a static test system and a static test method under an arch structure confining pressure environment.
The technical solution for realizing the purpose of the application is as follows: the utility model provides a static pressure-bearing test system of arch structure under confining pressure environment, includes test piece, bottom plate, confining pressure analogue means and test loading device, wherein:
the confining pressure simulator comprises a bag cover, a closed bag, side plates, triangular columns, an air pump and a control valve, wherein one or more closed bags are arranged on the surface of a test piece, and the closed bag is arranged in the bag cover; two ends of the bag cover are connected with side plates, and the side plates are fixed through triangular upright posts; the air pressure of each closed bag is independently controlled and applied by a control valve;
the test loading device comprises an arc-shaped pressing disc, a hydraulic actuator, a cross beam, a sliding rail, stand columns, a mounting seat and a cross beam fixing seat, wherein the arc-shaped pressing disc is arranged on the surface of a test piece, four stand columns are respectively welded on two sides of a bottom plate in two groups, and the top ends of the stand columns on the same side are connected through the sliding rail; the cross beam is arranged above the sliding rail, two sliding blocks are welded at the bottom end of the cross beam, the cross beam is connected with the sliding rail through the sliding blocks, and the sliding blocks are embedded into the sliding grooves to slide freely; the hydraulic actuator is connected to the beam fixing seat at the bottom side of the beam through the mounting seat, the mounting seat is connected with the beam fixing seat through a pin, and the hydraulic actuator can rotate around the beam fixing seat.
Further, the two ends of the bag cover are connected with the side plates on the two sides through bolts, the side plates are directly fixed on the triangular upright posts, and the triangular upright posts are connected with the bottom plate through bolts.
Furthermore, the sliding rail and the upright post are connected in a welding or bolt connection mode.
Further, the shape of the lower surface of the pressure plate is consistent with the surface of the test piece.
Further, the mounting seat is connected to the beam fixing seat at the center of the bottom side of the beam through bolts.
A static pressure test method of an arch structure in a confining pressure environment is based on a static pressure test system of the arch structure in the confining pressure environment, and the static pressure test of the arch structure in the confining pressure environment is realized.
Compared with the prior art, the application has the remarkable advantages that: 1) The device has the advantages of small structure, clear principle and simple conversion operation, and effectively solves the problems of complex structure, large occupied area and complicated installation of the traditional loading device by combining engineering practice. 2) Based on the adjustability of the test piece mounting mode, static pressure tests of arch structures with various sizes can be realized. 3) The confining pressure environment simulation scheme changes the traditional concentrated force loading mode, so that confining pressure simulation is more uniform, pressure changes of each loading area are realized through control of an independent air pump control valve, and the loading precision of confining pressure loads of each area is ensured. 4) The loading scheme omits the pretreatment step of the test piece, directly adopts the arc-shaped pressure plate with the same structural size to load, and ensures the uniformity of compression load. 5) The variable-angle loading scheme can easily realize the loading angle change of compression load, and can meet the multi-angle static pressure test under various confining pressure environments by combining the load change of the confining pressure simulation system, thereby improving the authenticity of test simulation.
Drawings
FIG. 1 is a flow chart of the system test steps of the present application;
FIG. 2 is a schematic diagram of a system implementation of the present application;
FIG. 3 is a front view of the system implementation of the present application;
FIG. 4 is a schematic cross-sectional view of a cross-beam and rail connection of the present application;
FIG. 5 is a schematic illustration of the connection of a cross beam to a hydraulic actuator in accordance with the present application;
FIG. 6 is a graph of beam position versus loading angle for the present application;
FIG. 7 is a schematic diagram of a variable angle loading system according to the present application;
in the figure: 1-arch structure test piece; 2-a bottom plate; 3-a capsule; 4, sealing the bag; 5-arc-shaped pressure plates; 6-side plates; 7-triangular upright posts; 8-a hydraulic actuator; 9-a cross beam; 10-sliding rails; 11-stand columns; 12-an air pump; 13-a control valve; 14-a slider; 15-sliding grooves; 16-a mounting base; 17-a beam fixing seat.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
A static pressure-bearing test system of an arch structure in a confining pressure environment comprises a confining pressure simulation device and a test loading device. As shown in figure 2, the confining pressure simulator comprises a 3-bag cover, a 4-closed bag, a 6-side plate, a 7-triangular column, a 12-air pump and a 13-control valve; the test loading device comprises a 5-arc-shaped pressure plate and an 8-hydraulic actuator; 9-cross beam, 10-slide rail, 11-stand column, 14-slide block, 15-slide groove, 16-mount pad, 17-cross beam fixing seat.
The confining pressure simulator consists of a bag cover 3, a closed bag 4, a side plate 6, a triangular column 7, an air pump 12 and a control valve 13. After the arch structure test piece 1 is horizontally placed on the bottom plate 2, the airtight bag 4 is placed on the surface of the test piece 1, and the airtight bag 4 is placed in the bag cover 3; two ends of the bag cover 3 are connected with side plates 6, and the side plates 6 are fixed through triangular upright posts 7; the air pressure of each air-tight bag 4 is independently applied by the control valve 13 through the air pump 12, so that the air pressure of each air-tight bag 4 can be independently applied.
The confining pressure environment on the surface of the test piece 1 is simulated through the closed bag load, the confining pressure can be divided into a plurality of pressure areas according to the difference of the surface confining pressure load, each area adopts an independent closed bag 4 to apply the pressure load, and the pressure in the closed bag 4 is applied through an air pump 12 and a control valve 13. The outside of the airtight bag 4 is wrapped by the bag cover 3, in order to ensure that the position of the bag cover 3 is not changed during loading, two ends of the bag cover 3 are connected with side plates 6 on two sides through bolts, the side plates 6 are directly fixed on the triangular upright posts 7, and the triangular upright posts 7 are connected with the bottom plate 2 through bolts. The bag cover 3 and the side plate 6, and the triangular upright post 7 and the bottom plate 2 are connected by bolts, so that the test piece can be quickly assembled and disassembled when the size and the loading angle of the test piece are changed.
The test loading device consists of an arc-shaped pressure plate 5, a hydraulic actuator 8, a cross beam 9, a sliding rail 10, an upright post 11, a mounting seat 16 and a cross beam fixing seat 17. The arc-shaped pressure plate 5 is arranged on the surface of the test piece 1, and the shape of the lower surface of the pressure plate 5 is kept consistent with the surface of the test piece 1. Four upright posts 11 are respectively welded on two sides of the bottom plate 2 in two groups, the top ends of the upright posts on the same side are connected through a sliding rail 10, and the sliding rail 10 is connected with the upright posts 11 in a welding or bolt connection mode; the cross beam 9 is arranged above the slide rail 10, two sliding blocks 14 are welded at the bottom end of the cross beam 9, the cross beam 9 is connected with the slide rail 10 through the sliding blocks 14, and the sliding blocks 14 are embedded into the slide grooves 15 and can slide freely, as shown in figure 4. The mounting seat 16 of the hydraulic actuator 8 is connected to the beam fixing seat 17 at the center of the bottom side of the beam through a bolt, and the mounting seat 16 is connected with the beam fixing seat 17 through a pin, so that the hydraulic actuator 8 can rotate around the beam fixing seat 17, as shown in fig. 5.
The slide rail 10 is fixedly connected with the upper end of the upright post 11, and the lower end of the upright post 11 is fixedly connected with the bottom plate 2 to form a self-balancing system. The test compression load is realized by pushing the arc-shaped pressure plate 5 to compress on the surface of the test piece 1 through the hydraulic actuator 8. The loading surface of the arc-shaped pressure plate 5 is consistent with the structural form of the outer surface of the test piece 1, so that the uniformity of the load of a compression area is ensured, and the pretreatment step of the test piece is omitted. The change of the loading angle of the hydraulic actuator 8 can be realized by changing the position of the cross beam 9 on the slide rail 10. As shown in fig. 6, the relationship between the position L of the cross beam 9 and the loading angle θ is: l=htan θ. When the loading angle is changed, the mounting positions of the sealing bag 4 and the bag cover 3 are correspondingly changed.
The test method of the test system mainly comprises the steps of installing test pieces, installing a compression loading system, installing a confining pressure simulation system and implementing static loading, wherein a test step flow chart of the test system is shown in the attached figure 1, and the specific steps are as follows:
step one, mounting a test piece: the test piece is placed on the bottom plate; according to the size of the test piece, the positions of the capsule covers 3 and the triangular upright posts 7 at the two sides of the test piece 1 are adjusted so as to ensure the coaxiality of the test piece, the bottom plate 2 and the cross beam 9;
step two, installing a compression loading system: the cross beam 9 slides to the position right above the central axis of the bottom plate along the slide rail 10, so that the coincidence of the central axes of the hydraulic actuator 8, the test piece and the bottom plate is ensured. The arc-shaped pressure plate 5 is mounted on the hydraulic actuator, the pressure plate is vertical to the axis of the hydraulic actuator, and if a positive pressure test is carried out, the arc-shaped pressure plate 5 is placed right above the test piece 1; if an angle compression test is performed, the cross beam 9 slides to be away from the central axis of the bottom plate by a distance L along the sliding rail 10, so that the difference of the angle theta required by the test between the hydraulic actuator and the central axis of the test piece is ensured, and then the arc-shaped pressure plate 5 is placed on a compression area of the corresponding loading angle of the test piece. When the test piece is installed, the lower surface of the arc-shaped pressing plate is guaranteed to be completely overlapped with the upper surface of the test piece.
Step three, installing a confining pressure simulation system: dividing the surface of the test piece into a plurality of areas according to the confining pressure of the surface of the test piece, and manufacturing a corresponding airtight bag 4 and a corresponding bag cover 3 according to the size of each area; placing the airtight bag 4 and the bag cover 3 on the surface of a test piece, connecting the bag cover 3 with side plates 6 on two sides through bolts, and fixing the positions of the bag covers; the side plate 6 is connected with the triangular upright post 7, and the position of the side plate is fixed; the air pump 12 is used for injecting air into each sealed bag 4, and the pressure of each sealed bag is independently controlled, so that the simulation of the confining pressure environment is realized.
And step four, static loading implementation: after the devices such as a force transducer, a flaw detection sensor, a strain gauge and the like are respectively arranged in and on the surface of the test piece, the test piece is slowly loaded through an arc-shaped pressure plate on the hydraulic actuator until the test piece is damaged.
The static force bearing test system of the arch structure in the confining pressure environment has the advantages of clear test principle, small and exquisite device structure, simple conversion operation and simple test steps, and can effectively solve the problems of complex structure, large occupied area and complicated installation of the traditional loading device. Meanwhile, the adjustability of the connection positions of the bag cover and the triangular upright post can realize static pressure tests of arch structures with various sizes.
Example 1
During positive pressure test of the test piece, the arc-shaped pressure plate is loaded right above the vault, a test schematic diagram is shown in the attached figure 3, and the test steps are as follows:
firstly, placing a test piece 1 on a bottom plate 2, and ensuring coaxiality of the test piece 1, the bottom plate 2 and a cross beam 9 by adjusting positions of the bag covers 3 and the triangular upright posts 7 on two sides of the test piece 1;
sliding the cross beam 9 to the position right above the central axis of the bottom plate along the sliding rail 10 to ensure that the central axes of the hydraulic actuator 8, the test piece and the bottom plate coincide;
placing an arc-shaped pressure plate 5 right above the test piece 1 to ensure that the lower surface of the pressure plate is completely overlapped with the upper surface of the test piece;
dividing the surface into a plurality of areas according to the confining pressure of the surface of the test piece except the pressure disc area; manufacturing a closed bag 4 and a bag cover 3 with corresponding sizes according to the size of each confining pressure area; placing the airtight bag 4 and the bag cover 3 on the surface of a test piece;
step five, connecting the capsule cover 4 with side plates 6 on two sides through bolts, and fixing the positions of the capsule covers; the side plate 6 is connected with the triangular upright post 7, and the position of the side plate is fixed;
step six, injecting gas into each sealed bag 4 through the air pump 12, and independently controlling the pressure of each sealed bag 4 to realize the simulation of the confining pressure environment;
and seventhly, after equipment such as a force transducer, a flaw detection sensor, a strain gauge and the like is respectively arranged in and on the surface of the test piece, slow loading is carried out through an arc-shaped pressure plate on the hydraulic actuator until the test piece is damaged.
Based on the confining pressure simulation system provided by the application, the traditional concentrated force loading mode is changed, so that confining pressure simulation is more uniform, the pressure change of each loading area is realized through independent air pump control, and the confining pressure load loading precision of each area is ensured. The uniformity of test loading load can be ensured by the loading mode of the arc-shaped pressure plate, and the pretreatment step of a test piece is omitted.
Example 2
During the test piece angle compression test, the arc-shaped pressure plate deflects at a corresponding angle on the vault, a test schematic diagram is shown in fig. 7, and the test steps are as follows:
firstly, placing a test piece 1 on a bottom plate 2, and ensuring coaxiality of the test piece 1, the bottom plate 2 and a cross beam 9 by adjusting positions of the bag covers 3 and the triangular upright posts 7 at two sides of the test piece;
sliding the cross beam 9 along the sliding rail 10 to a distance L from the central axis of the bottom plate, so as to ensure that the hydraulic actuator 8 is different from the central axis of the test piece by an angle theta required by the test;
step three, installing an arc-shaped pressure plate 5 on a hydraulic actuator 8, and placing the arc-shaped pressure plate 5 on a compression area of a test piece to ensure that the lower surface of the pressure plate is completely overlapped with the upper surface of the test piece;
dividing the surface into a plurality of areas according to the confining pressure of the surface of the test piece except the pressure disc area; manufacturing a closed bag 4 and a bag cover 3 with corresponding sizes according to the size of each confining pressure area; placing the airtight bag 4 and the bag cover 3 on the surface of a test piece;
step five, connecting the capsule cover 3 with side plates 6 on two sides through bolts, and fixing the positions of the capsule covers; the side plate 6 is connected with the triangular upright post 7, and the position of the side plate is fixed;
step six, injecting gas into each closed bag through the air pump 12, and independently controlling the pressure of each closed bag 4 to realize the simulation of the confining pressure environment;
and seventhly, after equipment such as a force transducer, a flaw detection sensor, a strain gauge and the like is respectively arranged in and on the surface of the test piece, slow loading is carried out through an arc-shaped pressure plate on the hydraulic actuator until the test piece is damaged.
Based on the variable-angle loading installation mode provided by the application, the compression load loading angle change can be easily realized; the load change of the confining pressure simulation system is combined, so that the multi-angle static pressure test under various confining pressure environments can be met, and the authenticity of test simulation is improved.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (6)
1. The utility model provides a static pressure-bearing test system of arch structure under confining pressure environment which characterized in that, including test piece (1), bottom plate (2), confining pressure analogue means and test loading device, wherein:
the confining pressure simulation device comprises a bag cover (3), a closed bag (4), side plates (6), triangular columns (7), an air pump (12) and a control valve (13), wherein one or more closed bags (4) are arranged on the surface of a test piece (1), and the closed bags (4) are arranged in the bag cover (3); two ends of the bag cover (3) are connected with side plates (6), and the side plates (6) are fixed through triangular upright posts (7); the closed bags (4) apply pressure through the air pump (12), and the air pressure of each closed bag (4) is independently controlled and applied through the control valve (13);
the test loading device comprises an arc-shaped pressing disc (5), a hydraulic actuator (8), a cross beam (9), sliding rails (10), stand columns (11), a mounting seat (16) and a cross beam fixing seat (17), wherein the arc-shaped pressing disc (5) is arranged on the surface of a test piece (1), four stand columns (11) are respectively welded on two sides of a bottom plate (2) in two groups, and the top ends of the stand columns on the same side are connected through one sliding rail (10); the cross beam (9) is arranged above the sliding rail (10), two sliding blocks (14) are welded at the bottom end of the cross beam (9), the cross beam (9) is connected with the sliding rail (10) through the sliding blocks (14), and the sliding blocks (14) are embedded into the sliding grooves (15) to slide freely; the hydraulic actuator (8) is connected to the beam fixing seat (17) at the bottom side of the beam through the mounting seat (16), the mounting seat (16) is connected with the beam fixing seat (17) through a pin, and the hydraulic actuator (8) can rotate around the beam fixing seat (17).
2. The static pressure test system of the arch structure under the confining pressure environment according to claim 1, wherein two ends of the capsule cover (3) are connected with side plates (6) on two sides through bolts, the side plates (6) are directly fixed on triangular columns (7), and the triangular columns (7) are connected with a bottom plate (2) through bolts.
3. The static pressure test system of the arch structure in the confining pressure environment according to claim 1, wherein the connection mode of the sliding rail (10) and the upright post (11) is welding or bolting.
4. The static pressure test system of the arch structure in the confining pressure environment according to claim 1, wherein the shape of the lower surface of the arc-shaped pressure plate (5) is consistent with the surface of the test piece (1).
5. The static pressure test system of an arch structure in a confining pressure environment according to claim 1, wherein the mounting base (16) is connected to a beam fixing base (17) at the center of the bottom side of the beam by bolts.
6. The static pressure test method of the arch structure in the confining pressure environment is characterized by realizing the static pressure test of the arch structure in the confining pressure environment based on the static pressure test system of the arch structure in the confining pressure environment according to the claim 1, and specifically comprising the following steps:
firstly, placing a test piece (1) on a bottom plate (2), and ensuring coaxiality of the test piece (1) with the bottom plate (2) and a cross beam (9) by adjusting positions of the bag covers (3) and the triangular stand columns (7) at two sides of the test piece (1);
sliding the cross beam (9) to the position right above the central axis of the bottom plate along the sliding rail (10) to ensure that the central axes of the hydraulic actuator (8), the test piece and the bottom plate coincide;
placing an arc-shaped pressure plate (5) right above the test piece (1) to ensure that the lower surface of the pressure plate is completely overlapped with the upper surface of the test piece;
dividing the surface into a plurality of areas according to the confining pressure of the surface of the test piece except the pressure disc area; manufacturing a closed bag (4) and a bag cover (3) with corresponding sizes according to the size of each confining pressure area; placing a closed bag (4) and a bag cover (3) on the surface of a test piece;
fifthly, connecting the capsule cover (3) with side plates (6) at two sides through bolts, and fixing the positions of the capsule covers; connecting a side plate (6) with a triangular upright post (7) and fixing the position of the side plate;
step six, injecting gas into each closed bag (4) through an air pump (12), and independently controlling the pressure of each closed bag (4) to realize the simulation of the confining pressure environment;
and seventhly, after the force transducer, the flaw detection sensor and the strain gauge are respectively arranged in and on the surface of the test piece, slowly loading the test piece through an arc-shaped pressure plate on the hydraulic actuator until the test piece is damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662912.1A CN114526998B (en) | 2021-12-30 | 2021-12-30 | Static test system and test method under confining pressure environment of arch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662912.1A CN114526998B (en) | 2021-12-30 | 2021-12-30 | Static test system and test method under confining pressure environment of arch structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114526998A CN114526998A (en) | 2022-05-24 |
| CN114526998B true CN114526998B (en) | 2023-08-22 |
Family
ID=81619986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111662912.1A Active CN114526998B (en) | 2021-12-30 | 2021-12-30 | Static test system and test method under confining pressure environment of arch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114526998B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175516A (en) * | 2011-02-16 | 2011-09-07 | 山东大学 | Large-scale combined dynamic and static multifunctional geotechnical engineering simulation test device |
| CN205404292U (en) * | 2016-03-01 | 2016-07-27 | 龙岩学院 | Triaxial pressurization mine roof blocking material capability test device |
| CN106198934A (en) * | 2016-09-14 | 2016-12-07 | 山东大学 | Block and the assay device of crack gushing water and test method are fallen in the landslide of a kind of crack rock |
| CN106289991A (en) * | 2016-08-28 | 2017-01-04 | 安徽省煤炭科学研究院 | A kind of cylindrical horizontal colliery roadway gongwu simulation test device |
| CN106677797A (en) * | 2017-03-13 | 2017-05-17 | 安徽理工大学 | U-shaped steel composite support structure for deep dynamic pressure soft rock roadway and construction method of U-shaped steel composite support structure |
| CN107389453A (en) * | 2017-08-31 | 2017-11-24 | 中国人民解放军国防科技大学 | Viscoelastic material confining pressure loading test system and method |
| CN109269896A (en) * | 2018-10-30 | 2019-01-25 | 山东省水利科学研究院 | A kind of multi-angle load bringing device and method |
| CN212031169U (en) * | 2020-05-06 | 2020-11-27 | 天津航天瑞莱科技有限公司 | Cambered surface pressure load loading system |
| CN113460332A (en) * | 2021-07-10 | 2021-10-01 | 中国飞机强度研究所 | Dynamic compression test device for energy absorption structure |
-
2021
- 2021-12-30 CN CN202111662912.1A patent/CN114526998B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175516A (en) * | 2011-02-16 | 2011-09-07 | 山东大学 | Large-scale combined dynamic and static multifunctional geotechnical engineering simulation test device |
| CN205404292U (en) * | 2016-03-01 | 2016-07-27 | 龙岩学院 | Triaxial pressurization mine roof blocking material capability test device |
| CN106289991A (en) * | 2016-08-28 | 2017-01-04 | 安徽省煤炭科学研究院 | A kind of cylindrical horizontal colliery roadway gongwu simulation test device |
| CN106198934A (en) * | 2016-09-14 | 2016-12-07 | 山东大学 | Block and the assay device of crack gushing water and test method are fallen in the landslide of a kind of crack rock |
| CN106677797A (en) * | 2017-03-13 | 2017-05-17 | 安徽理工大学 | U-shaped steel composite support structure for deep dynamic pressure soft rock roadway and construction method of U-shaped steel composite support structure |
| CN107389453A (en) * | 2017-08-31 | 2017-11-24 | 中国人民解放军国防科技大学 | Viscoelastic material confining pressure loading test system and method |
| CN109269896A (en) * | 2018-10-30 | 2019-01-25 | 山东省水利科学研究院 | A kind of multi-angle load bringing device and method |
| CN212031169U (en) * | 2020-05-06 | 2020-11-27 | 天津航天瑞莱科技有限公司 | Cambered surface pressure load loading system |
| CN113460332A (en) * | 2021-07-10 | 2021-10-01 | 中国飞机强度研究所 | Dynamic compression test device for energy absorption structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114526998A (en) | 2022-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108872530B (en) | Large-scale model test device for simulating asymmetric small-clear-distance tunnel excavation process | |
| CN108362864B (en) | Multifunctional combined tunnel excavation similar model test device | |
| CN102175516B (en) | Large-scale combined dynamic and static multifunctional geotechnical engineering simulation test device | |
| CN103645096B (en) | Variable-sized true triaxial test machine | |
| CN102175517B (en) | Large-size freely combined model test device for high ground stress underground engineering | |
| CN109900543B (en) | Two-dimensional combined stress induction protrusion simulation test device | |
| CN109556965B (en) | Shield segment mechanical property simulation test device | |
| CN110595909A (en) | True triaxial test system and method for simulating influence of different temperatures of deep rock mass | |
| CN101344445B (en) | Self-balancing type true three-dimensional loading model testing bench frame with sliding wall | |
| CN102620899A (en) | Self-loading device for test of simulating crustal stress of surrounding rock on rock tunnel shaking table | |
| CN104833775B (en) | The threedimensional model experimental rig of the prominent mud geological disaster of simulation gushing water | |
| CN103471796B (en) | Tunnel Cast-in-place concrete lining anti-seismic performance test methods | |
| CN108717107B (en) | Side slope physical experiment model | |
| CN103439105A (en) | Axial follow-up space loading device | |
| CN106546492A (en) | A kind of Rock And Soil large scale original position triaxial creep test system | |
| CN113310716B (en) | True three-dimensional physical simulation system and test method for influence of fault dislocation on tunnel operation | |
| CN201266124Y (en) | Self-balancing type true three-dimensional loading model testing bench frame with sliding wall | |
| CN113588248A (en) | Test device and method for simulating stress of shield segments with different turning radii | |
| CN114526998B (en) | Static test system and test method under confining pressure environment of arch structure | |
| CN209387310U (en) | A kind of pressure decay test device suitable for tunnel protection door | |
| CN103439250A (en) | Sustainable tracing energy storage type loading device | |
| CN207689095U (en) | A kind of novel unsymmetrial loading tunnel Research on Shaking Table for Simulating system | |
| CN102636386B (en) | Large-tonnage uniform distribution concentrated loading system | |
| CN201983989U (en) | Large freely combined roof truss-type high ground stress underground engineering model test device | |
| CN112763581B (en) | Multi-strain-rate disturbance outburst simulation test system and method in roadway pressure-maintaining excavation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |