GB2624455A - Test device and method for dynamic load impact on rock mass under two-dimensional gradient stress - Google Patents
Test device and method for dynamic load impact on rock mass under two-dimensional gradient stress Download PDFInfo
- Publication number
- GB2624455A GB2624455A GB2217339.7A GB202217339A GB2624455A GB 2624455 A GB2624455 A GB 2624455A GB 202217339 A GB202217339 A GB 202217339A GB 2624455 A GB2624455 A GB 2624455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- test piece
- stress
- rock mass
- dynamic load
- side beam
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 97
- 239000011435 rock Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title abstract description 5
- 230000003068 static effect Effects 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 58
- 229910052742 iron Inorganic materials 0.000 claims description 29
- 238000010998 test method Methods 0.000 claims description 9
- 239000004519 grease Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/313—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
-
- 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
-
- 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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A test device and method for dynamic load impact on a rock mass under a two-dimensional gradient stress. The test device comprises a gradient stress application module, an axial static load application module, a dynamic load application module, and a stress wave monitoring module, wherein the gradient stress application module comprises a base (18), a first side beam (91), a second side beam (92), a cross beam (7), a support rod (19), a bearing steel plate (17), a hydraulic cylinder (16), an oil distribution pipeline (8) and a gradient static load control box (10); the dynamic load application module comprises a bullet (14) and an incident rod (13), the bullet (14) impacting the incident rod (13) to apply a dynamic load to a test piece (5); and the stress wave monitoring module comprises a sensor (12), an ultra-dynamic strain gauge (3), an oscilloscope (2), and a computer terminal (1), the sensor (12) being adhered to the test piece (5), a wiring terminal of the sensor (12) being connected to the ultra-dynamic strain gauge (3), and the ultra-dynamic strain gauge (3), the oscilloscope (2) and the computer terminal (1) being sequentially connected. The device and method can better simulate the conditions of the dynamic load impact on a single rock mass or combined rock masses in actual stress environment.
Description
TEST DEVICE AND TEST METHOD FOR DYNAMIC LOAD IMPACT OF ROCK
MASS UNDER TWO-DIMENSIONAL GRADIENT STRESS
TECHNICAL FIELD
100011 The present disclosure relates to the technical field of mining engineering, in particular to a test device and a test method for the dynamic load impact of rock mass under two-dimensional gradient stress.
BACKGROUND
100021 Deep resource development is an inevitable choice for human beings. Along with aggravation of coal resource consumption, coal mining is deeply transferred, and the phenomenon of underground pressure is more obvious. The influence of dynamic disturbance of a deep rock mass under high stress on roadways and working faces cannot be ignored. The dynamic load disturbance not only can cause the increase of local stress and reduce the strength of the rock mass, but also can influence the stress distribution within the disturbance range, so that the original stress distribution is changed, and the deformation and instability of surrounding rock are accelerated. Consequently, the failure of a supporting structure body is caused, the maintenance of a deep well roadway is not facilitated, and efficient mining of coal is restricted. 100031 The comprehensive effect of high ground stress and strong dynamic load disturbance is the source of dynamic load roadway instability damage. The transmission mechanism of stress waves transmitted from a seismic source site to an impact occurrence site is an important influence factor of impact intensity. In recent years, many scholars make many improvements on test devices for the dynamic load of rock mass, and many achievements are gained for indoor tests of dynamic load acting in rock mass. However, most patents only explore the action mechanism that single rock mass is subjected to dynamic load without the effect of confining pressure, and researches on the rock mass subjected to a two-dimensional stress field are almost in a blank state. In addition, the stress environment of surrounding rock is considered to be gradient stress. Therefore, comprehensively considering the influence on high gradient ground stress and strong dynamic load disturbance, those skilled in the art urgently need to design a test device and a test method for the dynamic load impact of rock mass under two-dimensional gradient stress.
SUNLMARY
100041 The present disclosure aims to provide a test device and a test method for the dynamic load impact of rock mass under two-dimensional gradient stress so as to solve the problems in the prior art and better simulate the dynamic load impact condition of single rock mass or combined rock mass in an actual stress environment.
100051 In order to achieve the purpose, the present disclosure provides the following scheme. 100061 The present disclosure provides a test device for the dynamic load impact of rock mass under two-dimensional gradient stress, comprising a gradient stress applying module, an axial static load applying module, a dynamic load applying module and a stress wave monitoring module, wherein 100071 the gradient stress applying module comprises a base, a first side beam, a second side beam, a cross beam, supporting rods, a bearing steel plate, hydraulic cylinders, oil distributing pipelines and a gradient static load control box; the base is fixed to the ground, the first side beam and the second side beam are arranged on the two sides of the top of the base respectively, a through hole is formed in the second side beam, the cross beam is connected to the tops of the first side beam and the second side beam, the bearing steel plate is further arranged between the first side beam and the second side beam at the bottom of the cross beam, the supporting rods are arranged between the bearing steel plate and the base, and the top of the bearing steel plate is used for placing a test piece; the hydraulic cylinders for vertically loading the test piece are arranged at the bottom of the cross beam, and the hydraulic cylinders are connected with the gradient static load control box through the oil distributing pipelines; 100081 the axial static load applying module is a piston cylinder arranged at the bottom of the inner side of the side beam, and the piston cylinder is used for applying an axial static load to the test piece; 100091 the dynamic load applying module comprises a bullet and an incident rod, the incident rod is arranged on the outer side of the second side beam and opposite to the through hole, the outer diameter of the through hole is larger than that of the incident rod, and the bullet impacts the incident rod to apply a dynamic load to the test piece; and 100101 the stress wave monitoring module comprises a sensor, an ultra-dynamic strain gauge, an oscilloscope and a computer terminal, the sensor is pasted on the test piece, wiring terminals of the sensor are connected with the ultra-dynamic strain gauge, and the ultra-dynamic strain gauge is sequentially connected with the oscilloscope and the computer terminal [0011] Preferably, the base is fixed to the ground through floor nails.
100121 Preferably, the two ends of the cross beam are in joggle joint with the first side beam and the second side beam respectively.
[0013] Preferably, a flange plate is installed on the through hole, and the flange plate, the test piece and the incident rod are coaxial.
[0014] Preferably, the supporting rods are oppositely arranged in two rows, and the supporting rods in each row are transversely and evenly distributed.
100151 Preferably, square iron plates are distributed on the top of the test piece without intervals, a circular iron plate is arranged on the top of each square iron plate, and each circular iron plate is oppositely connected with one hydraulic cylinder.
[0016] Preferably, each hydraulic cylinder is coaxially arranged with the round iron plate and the square iron plate opposite to the hydraulic cylinder.
[0017] Preferably, square iron plates are further arranged on the end faces of the two sides of the test piece.
100181 Based on the test device for the dynamic load impact of rock mass under two-dimensional gradient stress, the present disclosure further provides a test method for the dynamic load impact of rock mass under two-dimensional gradient stress, comprising the following steps [0019] step one, carrying out material proportioning on a test piece according to a similar simulation proportioning of a required combined rock mass, after proportioning is completed, obtaining the test piece, controlling a gradient static load control box, retracting telescopic rods of hydraulic cylinders, placing the test piece on a bearing steel plate, aligning a plurality of square iron plates above the test piece, and placing square iron plates on the end faces of the two sides of the test piece; [0020] step two, moving an incident rod to enable the incident rod to be in contact with a flange plate, and uniformly smearing grease on the contact interface of the flange plate and the incident rod in order to ensure sufficient contact; pasting a sensor on the test piece, connecting the sensor to a dynamic strain gauge, connecting the dynamic strain gauge to an oscilloscope, and connecting the oscilloscope with a computer terminal; 100211 step three, controlling the gradient static load control box, and applying linear or non-linear gradient stress to the test piece in the axial direction of the test piece; controlling an external manual hydraulic pump so that a piston cylinder extends out to apply an axial load to the test piece, [0022] step four, launching a bullet so that the bullet impacts the incident rod, enabling the incident rod to penetrate through the flange plate to hit the test piece, receiving stress wave signals through a sensor on the test piece, adopting the dynamic strain gauge to collect the stress wave signals to be synchronized to the oscilloscope for observation, and processing the stress wave signals at the computer terminal; and [0023] step five, after test, observing stress wave propagation laws and the damage characteristics of the test piece, controlling the hydraulic cylinders to rise through the gradient static load control box, and unloading the test piece.
100241 Compared with the prior art, the present disclosure has the following beneficial technical effects [0025] According to the device and the test method for the dynamic load impact of rock mass under two-dimensional gradient stress provided by the present disclosure, the stress environment and the dynamic load impact of the rock mass are comprehensively considered, and the test device more conforming to the stress of the rock mass is designed, and the test piece rock mass (coal-rock-coal, coal rock mass and the like) is impacted through the incident rod. The propagation laws and damage characteristics of stress waves under gradient stress and axial stress can be observed, and the breaking law of the rock mass under gradient stress is disclosed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] To describe the technical scheme in the embodiments of the present disclosure or in the prior art more clearly, the following briefly introduces the attached figures required for describing the embodiments. Apparently, the attached figures in the following description show merely some embodiments of the present disclosure, arid those skilled in the art may still derive other attached figures from these attached figures without creative efforts.
[0027] FIG. 1 is a space diagram of a test device for the dynamic load impact of rock mass under two-dimensional gradient stress in the present disclosure; [0028] FIG. 2 is a stereoscopic assembly diagram of a gradient stress applying module, an axial static load applying module and a dynamic load applying module in the present disclosure; [0029] FIG. 3 is a front view of FIG. 2; and [0030] FIG. 4 is a top assembly diagram of a test piece, an axial static load applying module and a dynamic load applying module.
[0031] Reference signs: 1, computer terminal; 2, oscilloscope; 3, dynamic strain gauge; 4, connecting wire; 5, test piece; 6, square iron plate; 7, cross beam; 8, oil distributing pipeline; 91, first side beam; 92, second side beam; 10, gradient static load control box; 11, flange plate; 12, sensor; 13, incident rod; 14, bullet; 15, piston cylinder; 16, hydraulic cylinder; 17, bearing steel plate; 18, base; 19, supporting rod; and 20, circular iron plate.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] The following clearly and completely describes the technical scheme in the embodiments of the present disclosure with reference to the attached figures in the embodiments of the present disclosure. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present disclosure. Based on the embodiment in the present disclosure, all other embodiments obtained by the ordinary technical staff in the art under the premise of without contributing creative labor belong to the scope protected by the present disclosure.
[0033] The present disclosure aims to provide a test device and a test method for the dynamic load impact of rock mass under two-dimensional gradient stress so as to solve the problems in the prior art [0034] To make the foregoing objective, features and advantages of the present disclosure clearer and more comprehensible, the present disclosure is further described in detail below with reference to the attached figures and specific embodiments.
100351 A test device for the dynamic load impact of rock mass under two-dimensional gradient stress in the embodiment, as shown in FIG. 1 to FIG. 4, comprises a gradient stress applying module, an axial static load applying module, a dynamic load applying module and a stress wave monitoring module, wherein [0036] the gradient stress applying module comprises a base 18, a first side beam 91, a second side beam 92, a cross beam 7, supporting rods 19, a bearing steel plate 17, hydraulic cylinders 16, oil distributing pipelines 8 and a gradient static load control box 10; the base 18 is fixed to the ground through floor nails, the first side beam 91 and the second side beam 92 are arranged on the two sides of the top of the base 18 respectively, a through hole is formed in the second side beam 92, the cross beam 7 is connected to the tops of the first side beam 91 and the second side beam 92, the bearing steel plate 17 is further arranged between the first side beam 91 and the second side beam 92 at the bottom of the cross beam 7, the supporting rods 19 are arranged between the bearing steel plate 17 and the base 18, the supporting rods 19 are oppositely arranged in two rows, the supporting rods 19 in each row are transversely and evenly distributed, and the top of the bearing steel plate 17 is used for placing a test piece 5; the hydraulic cylinders 16 for vertically loading the test piece are arranged at the bottom of the cross beam 7, and the hydraulic cylinders 6are connected with the gradient static load control box 10 through the oil distributing pipelines 8; [0037] the axial static load applying module is a piston cylinder 15 arranged at the bottom of the inner side of the side beam 91, and the piston cylinder 15 is used for applying an axial static load to the test piece 5, [0038] the dynamic load applying module comprises a bullet 14 and an incident rod 13, the incident rod 13 is arranged on the outer side of the second side beam 92 and opposite to the through hole, the outer diameter of the through hole is larger than that of the incident rod 13, a flange plate 11 is installed on the through hole, the flange plate 11, the test piece 5 and the incident rod 13 are coaxial, and the bullet 14 impacts the incident rod 13 to apply a dynamic load to the test piece 5; and 100391 the stress wave monitoring module comprises a sensor 12, an ultra-dynamic strain gauge 3, an oscilloscope 2 and a computer terminal 1. the sensor 12 is pasted on the test piece 5, wiring terminals of the sensor 12 are connected with the ultra-dynamic strain gauge 3 through connecting wires 4, and the ultra-dynamic strain gauge 3 is sequentially connected with the oscilloscope 2 and the computer terminal 1 [0040] In the specific embodiment, square iron plates 6 are distributed on the top of the test piece 5 without intervals, a circular iron plate 20 is arranged on the top of each square iron plate 6, and each circular iron plate 20 is oppositely connected with one hydraulic cylinder 16; and each hydraulic cylinder 16 is coaxially arranged with the round iron plate 20 and the square iron plate 6 opposite to the hydraulic cylinder. In order to place the test piece 5 damaged by load impact, square iron plates 6 are further arranged on the end faces of the two sides of the test piece 5.
[0041] Based on the test device for the dynamic load impact of rock mass under two-dimensional gradient stress, the embodiment further provides a test method for the dynamic load impact of rock mass under two-dimensional gradient stress, comprising the following steps: [0042] step one, carrying out material proportioning on a test piece 5 according to a similar simulation proportioning of a required combined rock mass, after proportioning is completed, obtaining the test piece 5, controlling a gradient static load control box 10, retracting telescopic rods of hydraulic cylinders 16, placing the test piece 5 on a bearing steel plate 17, aligning a plurality of square iron plates 6 above the test piece 5, and placing square iron plates 6 on the end faces of the two sides of the test piece 5; [0043] step two, moving an incident rod 13 so that the incident rod 13 is in contact with a flange plate 11, and uniformly smearing grease on the contact interface of the flange plate 11 and the incident rod 13 in order to ensure sufficient contact; pasting a sensor 12 on the test piece 5, connecting the sensor 12 to a dynamic strain gauge 3, connecting the dynamic strain gauge 3 to an oscilloscope 2, and connecting the oscilloscope 2 with a computer terminal 1; [0044] step three, controlling the gradient static load control box 10, and applying linear or non-linear gradient stress to the test piece 5 along the axial direction of the test piece 5; controlling an external manual hydraulic pump so that a piston cylinder 15 extends out to apply an axial load to the test piece 5; [0045] step four, launching a bullet 14 so that the bullet 14 impacts the incident rod 13, enabling the incident rod 13 to penetrate through the flange plate 11 to hit the test piece 5, receiving stress wave signals through a sensor 12 on the test piece 5, adopting the dynamic strain gauge 3 to collect the stress wave signals to be synchronized to the oscilloscope 2 for observation, and processing the stress wave signals at the computer terminal 1; and [0046] step five, after test, observing stress wave propagation laws and the damage characteristics of the test piece 5, controlling the hydraulic cylinders16 to rise through the gradient static load control box 10, and unloading the test piece 5.
100471 Several examples are used for illustration of the principles and implementation methods of the present disclosure. The description of the embodiments is used to help illustrate the method and its core principles of the present disclosure. In addition, those skilled in the art can make various modifications in terms of specific embodiments and scope of application in accordance with the teachings of the present disclosure. In conclusion, the content of this specification shall not be construed as a limitation to the present disclosure.
Claims (9)
- WHAT IS CLAIMED IS: 1. A test device for the dynamic load impact of rock mass under two-dimensional gradient stress, comprising a gradient stress applying module, an axial static load applying module, a dynamic load applying module and a stress wave monitoring module, wherein the gradient stress applying module comprises a base, a first side beam, a second side beam, a cross beam, supporting rods, a bearing steel plate, hydraulic cylinders, oil distributing pipelines and a gradient static load control box; the base is fixed to the ground, the first side beam and the second side beam are arranged on the two sides of the top of the base respectively, a through hole is formed in the second side beam, the cross beam is connected to the tops of the first side beam and the second side beam, the bearing steel plate is further arranged between the first side beam and the second side beam at the bottom of the cross beam, the supporting rods are arranged between the bearing steel plate and the base, and the top of the bearing steel plate is used for placing a test piece; the hydraulic cylinders for vertically loading the test piece are arranged at the bottom of the cross beam, and the hydraulic cylinders are connected with the gradient static load control box through the oil distributing pipelines; the axial static load applying module is a piston cylinder arranged at the bottom of the inner side of the side beam, and the piston cylinder is used for applying an axial static load to the test piece; the dynamic load applying module comprises a bullet and an incident rod, the incident rod is arranged on the outer side of the second side beam and opposite to the through hole, the outer diameter of the through hole is larger than that of the incident rod, and the bullet impacts the incident rod to apply a dynamic load to the test piece; and the stress wave monitoring module comprises a sensor, an ultra-dynamic strain gauge, an oscilloscope and a computer terminal, the sensor is pasted on the test piece, wiring terminals of the sensor are connected with the ultra-dynamic strain gauge, and the ultra-dynamic strain gauge is sequentially connected with the oscilloscope and the computer terminal.
- 2 The test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to claim 1, wherein the base is fixed to the ground through floor nails.
- 3. The test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to claim 1, wherein the two ends of the cross beam are in joggle joint with the first side beam and the second side beam respectively.
- 4. The test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to claim 1, wherein a flange plate is installed on the through hole, and the flange plate, the test piece and the incident rod are coaxial.
- 5. The test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to claim 1, wherein the supporting rods are oppositely arranged in two rows, and the supporting rods in each row are transversely and evenly distributed.
- 6. The test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to claim 1, wherein square iron plates are distributed on the top of the test piece without intervals, a circular iron plate is arranged on the top of each square iron plate, and each circular iron plate is oppositely connected with one hydraulic cylinder.
- 7. The test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to claim 6, wherein each hydraulic cylinder is coaxially arranged with the round iron plate and the square iron plate opposite to the hydraulic cylinder.
- 8. The test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to claim 1, wherein square iron plates are further arranged on the end faces of the two sides of the test piece.
- 9. A test method for the dynamic load impact of rock mass under two-dimensional gradient stress, using the test device for the dynamic load impact of rock mass under two-dimensional gradient stress according to any one of claims 1 to 8, comprising the following steps: step one, carrying out material proportioning on a test piece according to a similar simulation proportioning of a required combined rock mass, after proportioning is completed, obtaining the test piece, controlling a gradient static load control box, retracting telescopic rods of hydraulic cylinders, placing the test piece on a bearing steel plate, aligning a plurality of square iron plates above the test piece, and placing square iron plates on the end faces of the two sides of the test piece; step two, moving an incident rod so that the incident rod is in contact with a flange plate, and uniformly smearing grease on the contact interface of the flange plate and the incident rod in order to ensure sufficient contact; pasting a sensor on the test piece, connecting the sensor to a dynamic strain gauge, connecting the dynamic strain gauge to an oscilloscope, and connecting the oscilloscope with a computer terminal; step three, controlling the gradient static load control box, and applying linear or non-linear gradient stress to the test piece along the axial direction of the test piece; controlling an external manual hydraulic pump so that a piston cylinder extends out to apply an axial load to the test piece; step four, launching a bullet so that the bullet impacts the incident rod, enabling the incident rod to penetrate through the flange plate to hit the test piece, receiving stress wave signals through a sensor on the test piece, adopting the dynamic strain gauge to collect the stress wave signals to be synchronized to the oscilloscope for observation, and processing the stress wave signals at the computer terminal; and step five, after test, observing stress wave propagation laws and the damage characteristics of the test piece, controlling the hydraulic cylinders to rise through the gradient static load control box, and unloading the test piece.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210566315.7A CN114910345B (en) | 2022-05-23 | 2022-05-23 | Device and method for testing rock mass under load impact under two-dimensional gradient stress |
| PCT/CN2022/103530 WO2023226158A1 (en) | 2022-05-23 | 2022-07-04 | Test device and method for dynamic load impact on rock mass under two-dimensional gradient stress |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202217339D0 GB202217339D0 (en) | 2023-01-04 |
| GB2624455A true GB2624455A (en) | 2024-05-22 |
Family
ID=90827506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2217339.7A Pending GB2624455A (en) | 2022-05-23 | 2022-07-04 | Test device and method for dynamic load impact on rock mass under two-dimensional gradient stress |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2624455A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226156A (en) * | 2016-09-21 | 2016-12-14 | 中国矿业大学(北京) | A kind of coal rock specimen fixture under the conditions of coupled static-dynamic loadingi |
| CN109142067A (en) * | 2018-09-29 | 2019-01-04 | 江西理工大学 | The experimental method and device of stress wave propagation in gradient static stress lower class rock material |
| CN109297823A (en) * | 2018-10-31 | 2019-02-01 | 山东科技大学 | A kind of experimental rig and test method for simulating mining rock Progressive failure |
| CN110595918A (en) * | 2019-10-25 | 2019-12-20 | 安徽理工大学 | Dynamic and static coupling loading anchoring body test device |
| CN111175121A (en) * | 2020-01-21 | 2020-05-19 | 山东科技大学 | Roadway surrounding rock drilling pressure relief similar simulation test system and use method |
| US20200319070A1 (en) * | 2018-12-24 | 2020-10-08 | Shandong University Of Science And Technology | Rock impact loading-unloading confining pressure test system and usage method therefor |
| CN113237760A (en) * | 2021-06-16 | 2021-08-10 | 安徽理工大学 | Multi-field coupling true triaxial dynamic and static load rock test device |
-
2022
- 2022-07-04 GB GB2217339.7A patent/GB2624455A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226156A (en) * | 2016-09-21 | 2016-12-14 | 中国矿业大学(北京) | A kind of coal rock specimen fixture under the conditions of coupled static-dynamic loadingi |
| CN109142067A (en) * | 2018-09-29 | 2019-01-04 | 江西理工大学 | The experimental method and device of stress wave propagation in gradient static stress lower class rock material |
| CN109297823A (en) * | 2018-10-31 | 2019-02-01 | 山东科技大学 | A kind of experimental rig and test method for simulating mining rock Progressive failure |
| US20200319070A1 (en) * | 2018-12-24 | 2020-10-08 | Shandong University Of Science And Technology | Rock impact loading-unloading confining pressure test system and usage method therefor |
| CN110595918A (en) * | 2019-10-25 | 2019-12-20 | 安徽理工大学 | Dynamic and static coupling loading anchoring body test device |
| CN111175121A (en) * | 2020-01-21 | 2020-05-19 | 山东科技大学 | Roadway surrounding rock drilling pressure relief similar simulation test system and use method |
| CN113237760A (en) * | 2021-06-16 | 2021-08-10 | 安徽理工大学 | Multi-field coupling true triaxial dynamic and static load rock test device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202217339D0 (en) | 2023-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107228803B (en) | Pseudo-static test device and method for lining component | |
| CN110595918B (en) | Dynamic and static coupling loading anchor body test device | |
| CN105865907B (en) | A kind of true triaxial test fixture for energetic disturbance type rock burst simulation | |
| CN104374655B (en) | A kind of shock vibration country rock testing equipment | |
| CN110780056A (en) | Test device for simulating movable fault to research on tunnel damage mechanism and using method | |
| CN101769837B (en) | Dynamic compression experimental method of Hopkinson pressure bar | |
| CN106501014A (en) | Vertical load testing machine for domain tunnel structure | |
| CN103398861A (en) | Physical simulation test system for true triaxial rockburst of deep-buried tunnel | |
| CN113587978B (en) | Earthquake-resistant and shear-resistant test simulation system and method for penetrating through fracture zone tunnel | |
| CN103760028B (en) | The confined pressure charger of use for laboratory rock testing | |
| CN113160684B (en) | Device and method for simulating deformation and damage of tunnel fault fracture zone | |
| CN105716957A (en) | Universal type true-triaxial static load pre-loading system for split Hopkinson pressure bar | |
| CN108318663B (en) | Test device for simulating tunnel to pass through fault fracture zone | |
| CN111141607A (en) | Self-balancing multi-loading-path unidirectional shearing box for pile-soil test | |
| KR20180035427A (en) | Apparatus for pile load test | |
| CN109060512B (en) | Assembled superposed pipe gallery quasi-static force loading test device and test method | |
| CN113916692B (en) | Multi-anchor rod and/or anchor cable cooperative shock resistance testing device and method | |
| GB2624455A (en) | Test device and method for dynamic load impact on rock mass under two-dimensional gradient stress | |
| CN114910345B (en) | Device and method for testing rock mass under load impact under two-dimensional gradient stress | |
| CN211603171U (en) | Test device for simulating movable fault to research on tunnel damage mechanism | |
| WO2021012459A1 (en) | Biaxial four-direction dynamic and static combined electromagnetic loading hopkinson plate impact loading device | |
| CN111855416A (en) | Circulating shear test device under stretching condition and application method thereof | |
| CN201289410Y (en) | Equipment for testing prototype shield tunnel structure loading soil pressure and water pressure independently | |
| CN115406821B (en) | Anchor rod in-situ corrosion test platform | |
| CN110987626A (en) | Anchor rod drawing test device and method considering tray influence |