CN113552323A - High-pressure rock grouting test experiment system and test method thereof - Google Patents

High-pressure rock grouting test experiment system and test method thereof Download PDF

Info

Publication number
CN113552323A
CN113552323A CN202110884169.8A CN202110884169A CN113552323A CN 113552323 A CN113552323 A CN 113552323A CN 202110884169 A CN202110884169 A CN 202110884169A CN 113552323 A CN113552323 A CN 113552323A
Authority
CN
China
Prior art keywords
grouting
rock
loading
pressure
slip casting
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
Application number
CN202110884169.8A
Other languages
Chinese (zh)
Inventor
王浩森
李杰宇
田喜春
高成章
王彦军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Yinfeng Technology Co ltd
Original Assignee
Shanxi Yinfeng Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanxi Yinfeng Technology Co ltd filed Critical Shanxi Yinfeng Technology Co ltd
Priority to CN202110884169.8A priority Critical patent/CN113552323A/en
Publication of CN113552323A publication Critical patent/CN113552323A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24Earth materials
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/02Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content

Abstract

The invention relates to a high-pressure rock grouting test experiment system and a test method thereof, and the high-pressure rock grouting test experiment system comprises a rock loading system and a high-pressure grouting system, wherein the rock loading system consists of a rock sample, an anti-attrition clamp and a true triaxial loading device, a cylindrical hole is formed in the middle of the rock sample, a crack hole is formed in the periphery of the rock sample, a clamp grouting hole is formed in the anti-attrition clamp, the true triaxial loading device is provided with loading oil cylinders in the vertical direction, the horizontal direction and the front and back directions, each loading oil cylinder is connected with a loading rod, a loading oil cylinder displacement sensor is arranged on each loading oil cylinder, the grouting rod is arranged on one side of the anti-attrition clamp, a grouting pipe is arranged in the grouting rod, one end of the grouting pipe is connected to the rock sample, and the other end of the grouting pipe is sequentially connected with a grouting pressure gauge, a grouting filter screen, a grouting oil pump and a grouting box; the grouting device has the advantages of simple structure and convenience in operation, and can be used for researching the grouting effect by simulating the real ground stress state and providing a powerful guidance function for the field of rock mass mechanics experiments.

Description

High-pressure rock grouting test experiment system and test method thereof
Technical Field
The invention relates to the technical field of rock mechanics experiments, in particular to a high-pressure rock grouting test experiment system and a test method thereof.
Background
Grouting reinforcement of an excavated rock mass of a broken rock mass project is a common technical means in the field of rock engineering, as the rock mass project gradually develops to the deep part, the ground stress borne by the grouting rock also gradually increases, and the grouting effect on the rock mass under high pressure is greatly different from that under low pressure; however, at present, research on grouting of rock under a high-pressure state is relatively few, and no relevant report is reported on an experimental system for a high-pressure grouting test experiment, so that it is very necessary to develop a high-pressure rock grouting test experimental system to provide guidance for actual engineering.
Disclosure of Invention
In order to solve the problems, the invention provides a high-pressure rock grouting test experiment system and a test method thereof, which can inject grouting solution used in an experiment into a pressed rock, so that the grouting effect of the rock in different pressure states and the grouting effect of different grouting pressures on the pressed rock are researched under the condition that the grouting pressure is constant and the rock in the pressed state is constant, and further more powerful guidance is provided for the field of rock mechanics experiments.
The technical scheme of the invention is as follows: a high-pressure rock grouting test experiment system comprises a rock loading system and a high-pressure grouting system;
the rock loading system consists of a rock sample, an anti-wear clamp and a true triaxial loading device, wherein a cylindrical hole is formed in the middle of the rock sample, crack holes are formed in the periphery of the rock sample, a clamp grouting hole is formed in the anti-wear clamp, the true triaxial loading device comprises a frame base, a horizontal frame, a vertical frame, a loading oil cylinder, a loading rod and a loading oil cylinder displacement sensor, the frame base is fixed on the ground, the horizontal frame is arranged on the left side and the right side of the frame base, the vertical frame is respectively arranged in the middle of the front side and the rear side of the frame base, the loading oil cylinders are respectively arranged in the vertical direction, the horizontal direction and the front side and the rear direction of the true triaxial loading device, each loading oil cylinder is connected with the loading rod, and the loading oil cylinder is provided with the loading oil cylinder displacement sensor;
the high-pressure grouting system comprises a grouting box, a grouting oil pump, a grouting filter screen, a grouting pressure gauge, a grouting pipe and a grouting rod, wherein the grouting rod is arranged on one side of the anti-wear clamp, the grouting pipe is arranged in the grouting rod, one end of the grouting rod is connected to a rock sample, and the other end of the grouting rod is sequentially connected with the grouting pressure gauge, the grouting filter screen, the grouting oil pump and the grouting box.
Further, a plurality of the crack holes are formed in the rock sample and are communicated with the cylindrical hole.
Further, the rock sample is a cubic rock sample with the side length of 150 mm.
Further, the diameter of the cylindrical hole in the rock sample is the same as that of the grouting hole in the antifriction clamp.
Furthermore, the antifriction fixture is formed by meshing six same metal plates.
Further, the length of the long side of the horizontal frame is correspondingly the same as that of the short side of the frame base.
Further, the height of the vertical frame is higher than that of the horizontal frame.
This high-pressure rock slip casting test experiment system injects grouting solution into pressurized rock with certain slip casting pressure or rock pressurized state through setting up different three-dimensional stress value or slip casting pressure, and the quality of surveying the rock after the slip casting after the experiment finishes reflects the slip casting effect with the quality contrast of rock sample before the slip casting, includes following step:
setting six groups of different three-way stresses or grouting pressures, wherein the six groups of stresses show an increasing trend;
secondly, weighing the rock sample, and then putting the rock sample into a grouting clamp;
thirdly, carrying out true triaxial three-dimensional centering on the clamp filled with the rock sample;
step four, loading simultaneously in three directions according to a certain loading rate, and loading the stress to a set stress level;
fifthly, loading the stress level for five minutes;
sixthly, grouting is carried out after the load preservation is finished, the grouting is carried out according to certain pressure, and the grouting time is ten minutes;
seventhly, taking out the rock sample after grouting and weighing;
eighthly, dividing the mass of the rock after grouting by the mass of the rock before grouting to calculate the grouting rate;
and ninthly, carrying out six groups of different three-dimensional stresses or grouting pressures according to the steps.
The invention has the following advantages:
1. through the rock loading system who sets up, can apply three-dimensional stress and simulate real ground stress state, thereby the high-pressure slip casting system can be with the used slip casting solution of experiment injection pressurized rock in to explore grouting pressure certain, the rock is in the condition of the grouting effect under different pressure states and under the certain condition of rock pressurized state under explore the slip casting effect of different grouting pressure to pressurized rock.
2. The anti-friction clamp can effectively reduce the friction force caused by mutual three-way drag during three-way loading, and ensure the accuracy of the experimental process.
3. The invention has simple structure and convenient operation, can accurately reflect the grouting effect through grouping test experiments and calculation, and provides powerful data for the field of rock mass mechanics experiments.
Drawings
Fig. 1 is a schematic front view of the structure of the present invention.
Fig. 2 is a side sectional view of the present invention.
FIG. 3 is a sectional view of the top structure of the present invention.
FIG. 4 is a cross-sectional view of a rock sample according to the present invention.
FIG. 5 is a perspective view of the friction reducing fixture of the present invention.
In the figure: 1. a rock loading system; 2. a high pressure grouting system; 21. grouting boxes; 22. a grouting oil pump; 23. grouting a filter screen; 24. a grouting pressure gauge; 25. a grouting pipe; 26. a grouting rod; 3. a rock sample; 31. a cylindrical bore; 32. a crack hole; 4. an anti-attrition clamp; 41. a clamp grouting hole; 5. true triaxial loading equipment; 51. a frame base; 52. a horizontal frame; 53. a vertical frame; 54. loading an oil cylinder; 55. a loading rod; 56. and loading the oil cylinder displacement sensor.
Detailed Description
The present invention will be further described with reference to specific examples, which are intended as illustrative embodiments of the invention and are intended to be included within the scope of the present invention.
As shown in fig. 1-5, a high-pressure rock grouting test experiment system comprises a rock loading system 1 and a high-pressure grouting system 2;
the rock loading system 1 consists of a rock sample 3, an antifriction clamp 4 and a true triaxial loading device 5, a cylindrical hole 31 is arranged at the middle part of the rock sample 3, a crack hole 32 is arranged at the periphery, the antifriction fixture 4 is provided with a fixture grouting hole 41, the true triaxial loading device 5 comprises a frame base 51, a horizontal frame 52, a vertical frame 53, a loading oil cylinder 54, a loading rod 55 and a loading oil cylinder 54 displacement sensor, the frame base 51 is fixed on the ground, the horizontal frames 52 are provided on the left and right sides of the frame base 51, the vertical frames 53 are respectively disposed at the central positions of the front and rear sides of the frame base 51, the true triaxial loading device 5 is provided with the loading oil cylinders 54 in the vertical direction, the horizontal direction and the front-back direction, each loading oil cylinder 54 is connected with a loading rod 55, and the loading oil cylinder 54 is provided with a loading oil cylinder 54 displacement sensor;
high-pressure slip casting system 2 includes slip casting case 21, slip casting oil pump 22, slip casting filter screen 23, slip casting manometer 24, slip casting pipe 25 and slip casting pole 26, slip casting pole 26 set up in antifriction anchor clamps 4 one side, place in slip casting pipe 25 in the slip casting pole 26, one end is connected to rock sample 3, and the other end has connected gradually slip casting manometer 24, slip casting filter screen 23, slip casting oil pump 22 and slip casting case 21.
In the preferred embodiment, there are a plurality of the crack holes 32 on the rock sample 3, and the crack holes are communicated with the cylindrical hole 31, so that the grouting process can be effectively performed.
In the preferred embodiment, the rock sample 3 is a cubic rock sample 3 with a side length of 150 mm.
In the preferred embodiment, the diameter of the cylindrical hole 31 of the rock sample 3 is the same as that of the jig grouting hole 41 of the antifriction jig 4, so that the assembly is facilitated.
In the preferred embodiment, the antifriction fixture 4 is formed by adjacent six identical metal plates, and the structure can reduce the friction force caused by the mutual restraint of three-dimensional stress when three-dimensional stress is loaded.
In the preferred embodiment, the length of the long side of the horizontal frame 52 is the same as the length of the short side of the frame base 51.
In the preferred embodiment, the height of the vertical frame 53 is higher than the height of the horizontal frame 52.
This high-pressure rock slip casting test experiment system injects grouting solution into pressurized rock with certain slip casting pressure or rock pressurized state through setting up different three-dimensional stress value or slip casting pressure, measures the quality of rock after the slip casting and reflects slip casting effect with the quality contrast of rock sample 3 before the slip casting after the experiment finishes, includes following step:
setting six groups of different three-way stresses or grouting pressures, wherein the six groups of stresses show an increasing trend;
secondly, weighing the rock sample 3, and then placing the rock sample 3 into a grouting clamp;
thirdly, carrying out true triaxial three-dimensional centering on the clamp filled with the rock sample;
step four, loading simultaneously in three directions according to a certain loading rate, and loading the stress to a set stress level;
fifthly, loading the stress level for five minutes;
sixthly, grouting is carried out after the load preservation is finished, the grouting is carried out according to certain pressure, and the grouting time is ten minutes;
seventhly, taking out the rock sample after grouting and weighing;
eighthly, dividing the mass of the rock after grouting by the mass of the rock before grouting to calculate the grouting rate;
and ninthly, carrying out six groups of different three-dimensional stresses or grouting pressures according to the steps.
The working principle and the process of the invention are as follows:
firstly, selecting a 150mm cubic rock sample 3 in an experiment, arranging a cylindrical hole 31 in the middle of the rock sample 3, setting a certain crack hole 32 on the rock sample 3 according to different experiment requirements to simulate a cracked rock mass, wherein the hole diameter of the cylindrical hole 31 is the same as that of a grouting hole on an antifriction clamp 4, arranging the crack hole 32 on the rock sample 3 to be communicated with the hole of the cylindrical hole 31, arranging the experimental rock sample 3 into the antifriction clamp 4, enabling the cylindrical hole 31 of the rock sample 3 to be opposite to the grouting hole of the antifriction clamp 4, then arranging the antifriction clamp 4 with the rock sample 3 into a true triaxial loading device 5, enabling a loading oil cylinder 54 to apply force to the rock sample 3 through a loading rod 55 by adjusting three-way stress, wherein a grouting pipe 25 is arranged in a grouting rod 26, and a loading oil cylinder 54 displacement sensor arranged on the loading oil cylinder 54 can measure displacement data, the high-pressure grouting system 2 presses grouting solution in the grouting box 21 into the pressed rock sample 3 through the grouting pipe 25 and the grouting filter screen 23 through the grouting oil pump 22, so that the grouting pressure is determined to be constant, the grouting effect of different grouting pressures on the pressed rock is explored under the conditions of the grouting effect of the rock in different pressure states and the conditions of the pressed state of the rock, and the grouting characteristic of a high-pressure rock body can be studied through the experimental system to provide a certain guiding effect for actual engineering.
The invention can apply three-dimensional stress to simulate a real ground stress state through the arranged rock loading system, and the high-pressure grouting system can inject grouting solution used in an experiment into the pressed rock so as to explore the grouting pressure to be certain, the grouting effect of the rock under different pressure states and the grouting effect of different grouting pressures on the pressed rock under certain rock pressure states; the anti-friction clamp can effectively reduce the friction force caused by mutual three-way drag during three-way loading, and ensure the accuracy of the experimental process; the invention has simple structure and convenient operation, can accurately reflect the grouting effect through grouping test experiments and calculation, and provides powerful data for the field of rock mass mechanics experiments.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a high-pressure rock slip casting test experiment system which characterized in that: the device comprises a rock loading system (1) and a high-pressure grouting system (2);
the rock loading system (1) is composed of a rock sample (3), an anti-friction clamp (4) and a true triaxial loading device (5), a cylindrical hole (31) is formed in the middle of the rock sample (3), crack holes (32) are formed in the periphery of the rock sample, a clamp grouting hole (41) is formed in the anti-friction clamp (4), the true triaxial loading device (5) comprises a frame base (51), a horizontal frame (52), a vertical frame (53), a loading oil cylinder (54), a loading rod (55) and a loading oil cylinder displacement sensor (56), the frame base (51) is fixed on the ground, the horizontal frame (52) is arranged on the left side and the right side of the frame base (51), the vertical frame (53) is respectively arranged in the middle positions of the front side and the rear side of the frame base (51), and the true triaxial loading device (5) is arranged in the vertical direction, The loading oil cylinders (54) are arranged in the horizontal direction and the front-back direction, each loading oil cylinder (54) is connected with a loading rod (55), and a loading oil cylinder displacement sensor (56) is arranged on each loading oil cylinder (54);
high-pressure slip casting system (2) include slip casting case (21), slip casting oil pump (22), slip casting filter screen (23), slip casting manometer (24), slip casting pipe (25) and slip casting pole (26), slip casting pole (26) set up in antifriction anchor clamps (4) one side, place in slip casting pipe (25) in slip casting pole (26), one end is connected to rock sample (3), and the other end has connected gradually slip casting manometer (24), slip casting filter screen (23), slip casting oil pump (22) and slip casting case (21).
2. The high-pressure rock grouting test experiment system according to claim 1, characterized in that: the plurality of the crack holes (32) on the rock sample (3) are communicated with the cylindrical hole (31).
3. The high-pressure rock grouting test experiment system according to claim 1, characterized in that: the rock sample (3) is a cubic rock sample (3) with the side length of 150 mm.
4. The high-pressure rock grouting test experiment system according to claim 1, characterized in that: the diameter of the cylindrical hole in the rock sample (3) is the same as that of the clamp grouting hole (41) in the antifriction clamp (4).
5. The high-pressure rock grouting test experiment system according to claim 1, characterized in that: the antifriction fixture (4) is formed by meshing six same metal plates which are adjacent to each other.
6. The high-pressure rock grouting test experiment system according to claim 1, characterized in that: the long sides of the horizontal frame (52) are correspondingly the same as the short sides of the frame base (51).
7. The high-pressure rock grouting test experiment system according to claim 1, characterized in that: the height of the vertical frame (53) is higher than the height of the horizontal frame (52).
8. A test method of a high-pressure rock grouting test experiment system is characterized by comprising the following steps: injecting grouting solution into the pressed rock by setting different three-way stress values or grouting pressures with certain grouting pressure or rock pressed states, and measuring the quality of the rock after grouting and the quality of the rock sample before grouting after the experiment is finished to reflect grouting effect in a comparison mode, wherein the method comprises the following steps:
setting six groups of different three-way stresses or grouting pressures, wherein the six groups of stresses show an increasing trend;
secondly, weighing the rock sample, and then putting the rock sample into a grouting clamp;
thirdly, carrying out true triaxial three-dimensional centering on the clamp filled with the rock sample;
step four, loading simultaneously in three directions according to a certain loading rate, and loading the stress to a set stress level;
fifthly, loading the stress level for five minutes;
sixthly, grouting is carried out after the load preservation is finished, the grouting is carried out according to certain pressure, and the grouting time is ten minutes;
seventhly, taking out the rock sample after grouting and weighing;
eighthly, dividing the mass of the rock after grouting by the mass of the rock before grouting to calculate the grouting rate;
and in the ninth step, 6 groups of different three-dimensional stress or grouting pressure are carried out according to the steps.
CN202110884169.8A 2021-08-03 2021-08-03 High-pressure rock grouting test experiment system and test method thereof Pending CN113552323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110884169.8A CN113552323A (en) 2021-08-03 2021-08-03 High-pressure rock grouting test experiment system and test method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110884169.8A CN113552323A (en) 2021-08-03 2021-08-03 High-pressure rock grouting test experiment system and test method thereof

Publications (1)

Publication Number Publication Date
CN113552323A true CN113552323A (en) 2021-10-26

Family

ID=78133574

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110884169.8A Pending CN113552323A (en) 2021-08-03 2021-08-03 High-pressure rock grouting test experiment system and test method thereof

Country Status (1)

Country Link
CN (1) CN113552323A (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821487A (en) * 2014-03-20 2014-05-28 中国石油大学(华东) Simulation experiment set for thickened oil thermal recovery storage layer fractures
CN104614497A (en) * 2015-03-09 2015-05-13 中国矿业大学 True-triaxial integrated experimental system for fracturing due to flowing pressure, slotting, seepage and gas driving
CN105756645A (en) * 2014-12-16 2016-07-13 中国石油化工股份有限公司 Physical simulation system and method for fracture propagation in shale
CN205719785U (en) * 2016-06-28 2016-11-23 山东科技大学 A kind of actual triaxial testing apparatus for simulating crack propagation
CN107976237A (en) * 2018-01-02 2018-05-01 昆明理工大学 A kind of intelligent monitoring device and monitoring method for slip casting process grouting amount
CN108362859A (en) * 2018-02-02 2018-08-03 山东科技大学 A kind of experimental system for simulating old goaf grouting effect
CN108445193A (en) * 2018-06-04 2018-08-24 东北大学 The prefabricated system of grouting test containing rock mass with cracks and application method under a kind of excavation stress
CN108761040A (en) * 2018-06-04 2018-11-06 龙岩学院 Slurry filling imitation device with pressure and its application method in a kind of restricted clearance
CN208109568U (en) * 2018-04-11 2018-11-16 四川大学 Rock direct shear test test specimen, piece fixture and presser unit
CN109632472A (en) * 2019-01-15 2019-04-16 东北大学 A kind of rock sample fixture and application method suitable for true triaxial tension test
CN111505247A (en) * 2020-05-12 2020-08-07 中国矿业大学 Rock grouting test device and method based on centrifugal machine
CN111983197A (en) * 2020-02-20 2020-11-24 中国人民解放军军事科学院国防工程研究院 Fractured rock mass grouting simulation visualization test system and method considering stress effect
CN213456463U (en) * 2020-11-10 2021-06-15 四川大学 True triaxial rock mass hydraulic fracture and fracture grouting simulation test device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821487A (en) * 2014-03-20 2014-05-28 中国石油大学(华东) Simulation experiment set for thickened oil thermal recovery storage layer fractures
CN105756645A (en) * 2014-12-16 2016-07-13 中国石油化工股份有限公司 Physical simulation system and method for fracture propagation in shale
CN104614497A (en) * 2015-03-09 2015-05-13 中国矿业大学 True-triaxial integrated experimental system for fracturing due to flowing pressure, slotting, seepage and gas driving
CN205719785U (en) * 2016-06-28 2016-11-23 山东科技大学 A kind of actual triaxial testing apparatus for simulating crack propagation
CN107976237A (en) * 2018-01-02 2018-05-01 昆明理工大学 A kind of intelligent monitoring device and monitoring method for slip casting process grouting amount
CN108362859A (en) * 2018-02-02 2018-08-03 山东科技大学 A kind of experimental system for simulating old goaf grouting effect
CN208109568U (en) * 2018-04-11 2018-11-16 四川大学 Rock direct shear test test specimen, piece fixture and presser unit
CN108445193A (en) * 2018-06-04 2018-08-24 东北大学 The prefabricated system of grouting test containing rock mass with cracks and application method under a kind of excavation stress
CN108761040A (en) * 2018-06-04 2018-11-06 龙岩学院 Slurry filling imitation device with pressure and its application method in a kind of restricted clearance
CN109632472A (en) * 2019-01-15 2019-04-16 东北大学 A kind of rock sample fixture and application method suitable for true triaxial tension test
CN111983197A (en) * 2020-02-20 2020-11-24 中国人民解放军军事科学院国防工程研究院 Fractured rock mass grouting simulation visualization test system and method considering stress effect
CN111505247A (en) * 2020-05-12 2020-08-07 中国矿业大学 Rock grouting test device and method based on centrifugal machine
CN213456463U (en) * 2020-11-10 2021-06-15 四川大学 True triaxial rock mass hydraulic fracture and fracture grouting simulation test device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王元清 等, 《中国地质大学出版社》, pages: 196 *

Similar Documents

Publication Publication Date Title
US20210285858A1 (en) Reciprocating Rock Fracture Friction-Seepage Characteristic Test Device and Method
CN108732024B (en) Test system and test method for simulating water inrush of bottom plate under different ground stress conditions
CN110108571B (en) Dynamic and static combined loading test device and test method
CN108519293B (en) True triaxial rock shear seepage experimental apparatus
CN110018056B (en) Sandstone reservoir hole stability evaluation experimental device and method
CN110780056A (en) Test device for simulating movable fault to research on tunnel damage mechanism and using method
CN110554169A (en) tunnel excavation process simulation test device and method
CN104833775B (en) The threedimensional model experimental rig of the prominent mud geological disaster of simulation gushing water
CN112858024A (en) Device and method for measuring dynamic performance of deep rock under action of hydraulic coupling
CN110441172B (en) Osmotic pressure and static pressure coupling electromagnetic loading triaxial SHPB device and test method
CN104792562B (en) Underground chamber structural plane excavates transient unloading loose simulation experiment system
CN109612840B (en) Experimental device and method for obtaining post-peak curve and residual strength of brittle rock
CN112098221B (en) Analog simulation device and experimental method for stability of coal pillar of mine underground reservoir
CN109632509A (en) Hypergravity true triaxial rock loading experimental apparatus and method
CN105527177A (en) Test method for simulating explosion ground shock disturbance of deep rock mass and device thereof
CN108548766A (en) Rock mass transient unloading infiltration pressing response simulation experimental rig based on magnetoelectricity control
CN210720389U (en) Tunnel excavation process analogue test device
CN109269905B (en) Rock test device and method for simulating high-humidity acidic environment state
CN210198860U (en) Dynamic and static combined loading test device
CN203869957U (en) Triaxial mechanical property test device for large rock
CN105628526B (en) Dynamic loading hydraulic fracturing rock mechanical test system
CN105277379A (en) Excavation transient unloading dynam-relaxing simulation system of jointed rock under different confining pressure
CN204461905U (en) A kind of test unit testing static(al) shear property between pile tube and the slip casting soil body
CN113552323A (en) High-pressure rock grouting test experiment system and test method thereof
CN110044719B (en) Triaxial compression test device and method for discrete gangue

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