CN108254257A - Field Stratified Rock Slope rock mass bending damage experimental rig and test method - Google Patents
Field Stratified Rock Slope rock mass bending damage experimental rig and test method Download PDFInfo
- Publication number
- CN108254257A CN108254257A CN201711282010.9A CN201711282010A CN108254257A CN 108254257 A CN108254257 A CN 108254257A CN 201711282010 A CN201711282010 A CN 201711282010A CN 108254257 A CN108254257 A CN 108254257A
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- rock
- pressurizing member
- experimental rig
- rock mass
- compression plate
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- 239000011435 rock Substances 0.000 title claims abstract description 142
- 238000005452 bending Methods 0.000 title claims abstract description 33
- 230000006378 damage Effects 0.000 title claims abstract description 23
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 238000011161 development Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 32
- 238000007906 compression Methods 0.000 claims description 32
- 238000002474 experimental method Methods 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000007405 data analysis Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 235000010829 Prunus spinosa Nutrition 0.000 description 1
- 241001527975 Reynosia uncinata Species 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01N3/08—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
Abstract
The present invention relates to field Stratified Rock Slope rock mass bending damage experimental rig and test methods, experimental rig includes pressurized equipment and recording equipment, the pressurized equipment includes pressurizing member, and pressurizing member can be embedded between basal bed and basal bed and pressurize perpendicular to level rock to basal bed and cap rock layer；Recording equipment face test area set, for pressurized equipment to rock stratum apply press process in continuously fixed point shooting rock mass.The present invention can apply rock stratum by experimental rig the pressure along slope aspect, make rock stratum that bending deformation occur, the process of Toppling Deformation and destruction occurs to free face for simulation rock mass, so as to analyze and predict the law of development of its deformation failure and development trend.
Description
Technical field
The present invention relates to rock mass field of test instrument, and in particular to field Stratified Rock Slope rock mass bending damage experiment dress
It puts and test method.
Background technology
Stratiform is counter to incline, the Inclining destruction to side slope free face direction and bending easily occur for upright or steep dip rock slope with along layer near cut
Deformation.Rock side slope development of such deformation failure models in the strong off-load area of Southwestern China portion high mountain gorge is especially universal,
It is huge to the harm such as personnel, building, highway, power station, there is generality, complexity, regionality and harmfulness.It is existing
Assay method is mainly two kinds of indoor scale model experiment and numerical simulation analysis.Due to the complexity of rock stratum bending deformation
Property the features such as, it is indoor experiment and numerical simulation cannot analyze live practical distortion situation completely, then need scene carry out phase
Experimental analysis is closed, obtains the rule of rock mass bending deformation in situ.
Invention content
In view of the above-mentioned problems, the present invention provides field Stratified Rock Slope rock mass bending damage experimental rig and experiment side
Method can apply rock stratum by experimental rig the pressure along slope aspect, make rock stratum that bending deformation occur, simulate rock mass to free face
The process of Toppling Deformation and destruction occurs, so as to analyze and predict the law of development of its deformation failure and development trend.
To achieve the above object, the technical solution adopted by the present invention is：Field Stratified Rock Slope rock mass bending damage examination
Experiment device, including pressurized equipment and recording equipment, the pressurized equipment includes pressurizing member, and the pressurizing member can be embedded in top
It pressurizes between portion rock stratum and basal bed and perpendicular to level rock to cap rock layer and basal bed；The recording equipment
Face test area set, for pressurized equipment to rock stratum apply press process in continuously fixed point shooting rock mass.
Further, the pressurizing member is jack.
Further, the both ends of the pressurizing member are respectively arranged with top compression plate and bottom compression plate, the top
Pressure plate is against cap rock layer and between cap rock layer and the pressurizing member, and the bottom compression plate is against basal bed
And between basal bed and pressurizing member.
Further, the pressurizing member is connected with hydraulic pump by hydraulic tube.
Further, the hydraulic pump is pumped for hand-held hydraulic.
Further, the recording equipment includes camera.
Field Stratified Rock Slope rock mass bending damage test method, includes the following steps：
（1）Optional test point selects rock stratum condition that can preferably consolidate the beded rock mass of embedded installation pressurizing member, then in rock
The exposure position choice arrangement test area of Toppling Deformation not yet occurs for layer；
（2）In test area, pressurizing member is stablized in the groove between embedded basal bed and cap rock layer, make pressurization first
The compression aspect of part is perpendicular to level rock；Meanwhile record the preceding rock stratum apparent dip that pressurizes；
（3）It is more with fixed intervals mark from top to bottom along single level in experiment rock stratum pressurized zone according to action rock mass size
A mark point；
（4）In face test area placement record equipment；
（5）Certain length is pulled out as scale by the use of tape measure near test area, starts pressurizing member to cap rock layer and bottom
Rock stratum is pressurizeed along perpendicular to level rock direction, while carries out continuous establishing shot to pressurized rock stratum with recording equipment, directly
Bending occurs to rock stratum to fracture and deform, pressurizing member stops pressurization.
Further, in step（5）Step is also set up later（6）, the photo shot in experiment is handled and data
Analysis, the displacement for obtaining each group mark point change over time curve, so as to obtain the law of development of rock mass bending deformation and development
Trend.
Further, pressurizing member is jack.
Further, the step（2）In, top compression plate and bottom is set to add respectively at the both ends of the pressurizing member
After pressing plate, the top compression plate and bottom compression plate at pressurizing member and both ends are stablized to embedded basal bed and top rock together
In groove between layer, the top compression plate is against cap rock layer and between cap rock layer and the pressurizing member, institute
Bottom compression plate is stated against basal bed and between basal bed and pressurizing member.
The bending for the rock matter stratiform sloe that the experiment instrument of the present invention is met suitable for the industries such as geology, ground, water power becomes
Shape failure analysis, mainly in counter-tilt slope, vertical side slope and high inclination-angle layered dip rocky slope.By experimental facilities to bottom rock
Layer pressurizes, and simulates under native state, the power of the past free face Direction distortion suffered by rock stratum, is recorded and deformed using recording equipment
The process of development, so as to obtain the rule of rock stratum bending damage and growth course.The present invention has the characteristics that portable, and solves
Has the problem of field in-situ test is lacked for cripping test, the Study of Strata bending damage feature that can more tally with the actual situation
The problem of.
Description of the drawings
Fig. 1 is the experimental facilities structure diagram in tester of the present invention.
Fig. 2 arranges schematic diagram for tester of the present invention.
Fig. 3 is the displacement time change curve of rock stratum mark point in embodiment 1.
In figure：1- pressurizing members, 2- top compression plates, 3- bottom compression plates, 4- hydraulic pumps, 5- hydraulic tubes, 6- tops rock
Layer, 7- basal beds, 8- recording equipments, 9- tripods.
Specific embodiment
With reference to specific embodiment, the present invention is further explained.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figs. 1-2, it is a kind of field Stratified Rock Slope rock mass bending damage experimental rig, is set including pressurization
Standby and recording equipment 8, the pressurized equipment include pressurizing member 1, and the pressurizing member 1 can be embedded in cap rock layer 6 and bottom
It pressurizes between rock stratum 7 and perpendicular to level rock to cap rock layer 6 and basal bed 7；8 face of the recording equipment experiment
Region is set, for continuous establishing shot rock mass in applying press process to rock stratum in experimental facilities.
The both ends of the pressurizing member are respectively arranged with top compression plate 2 and bottom compression plate 3, the top compression plate 2
Against cap rock layer 6 and between cap rock layer and the pressurizing member, the bottom compression plate 3 against basal bed 7 and
Between basal bed and pressurizing member, to adapt to different rock-layers occurrence.
Position top compression plate and bottom compression plate and the rock stratum contact surface of instrument layout should be parallel as possible, and are parallel to layer
Face, to ensure that application pressure is vertical with level.
The bottom compression plate and the top compression plate preferably use steel plate.
The pressurizing member 1 is connected with hydraulic pump 4 by hydraulic tube 5, can provide enough pressure and stroke.Pressurizing member
Preferably jack.
The hydraulic pump 4 is preferably hand-held hydraulic pump, during pressurization, should make hydraulic pump is near horizontal positioned to be conducive to continuous-stable
Pressurized operation, pressure process should as possible at the uniform velocity, steadily, unsuitable too fast loading.
Bottom pressure rock stratum is unsuitable blocked up, otherwise thickness control is not easy to observe Distortion Disciplinarian in 20cm ~ 40cm.
Experimental rig size should not be too large, and should meet the portable requirement in field.
Inclinometer is further included, for measuring rock stratum apparent dip.
The recording equipment 8 includes camera, can fix record experiment situation of change.The preferred high definition camera shooting of camera is taken pictures
Function instrument is supported with tripod 9.
Using the experimental method of above-mentioned field Stratified Rock Slope rock mass bending damage tester, include the following steps：
（1）Optional test point selects rock stratum condition that can preferably consolidate the beded rock mass of embedded installation pressurizing member, then in rock
The exposure position choice arrangement test area of Toppling Deformation not yet occurs for layer；
（2）In test area, pressurizing member is stablized in the groove between embedded basal bed and cap rock layer, make pressurization first
The compression aspect of part is perpendicular to level rock；Meanwhile record the preceding rock stratum apparent dip that pressurizes；
（3）It is more with fixed intervals mark from top to bottom along single level in experiment rock stratum pressurized zone according to action rock mass size
A mark point；
（4）In face test area placement record equipment；
（5）Certain length is pulled out as scale by the use of tape measure near test area, starts pressurizing member to cap rock layer and bottom
Rock stratum is pressurizeed along perpendicular to level rock direction, while carries out continuous establishing shot to pressurized rock stratum with recording equipment, directly
Bending occurs to rock stratum to fracture and deform, pressurizing member stops pressurization；
（6）The photo shot in experiment is handled and data analysis, the displacement for obtaining each group mark point change over time song
Line, so as to obtain the law of development and development trend of rock mass bending deformation.
Embodiment 1
It is tested using above-mentioned field Stratified Rock Slope rock mass bending damage tester, test method includes the following steps：
The first step：Suitable testing site is selected, selects rock stratum condition that can preferably consolidate the bedded rock of embedded installation experimental facilities
Then the exposure position choice arrangement test area of Toppling Deformation not yet occurs in rock stratum for body.
Second step：In test area, the rock stratum top for the loading for preparing pressurized equipment effect is cleaned out and can be embedded in
The groove of pressurized equipment allows pressurizing member to stablize in embedded groove and is loaded perpendicular to level rock.At the top of jack
It is compression steel plate between rock stratum, for increasing forced area, rock stratum is made to be acted on by more uniform face power.Recording angular instrument is carved
Degree, that is, the rock stratum apparent dip before pressurizeing.
Third walks：Hand-held hydraulic pump is docked after pressurizing member is installed in rock stratum.
4th step：According to action rock mass size, experiment rock stratum pressurized zone along single level from top to bottom using 10cm as
It is spaced trace mark point 4 ~ 6.
5th step：It is fixed after single anti-digital camera focusing in the suitably-arranged of face test area and adjustment tripod
Tripod.
6th step：Preparation starts to test, and certain length is pulled out as scale by the use of steel tape near trial zone, with hand-held liquid
Press pump pressurizes to pressurizing member to the loading of experiment rock stratum.Change with pressure gauge reading and test area is carried out continuously with camera simultaneously
Fixed point shooting, until rock stratum occurs bending and fractures and deforms, pressurizing member stops pressurization.
Then, the data of record are handled, experimental data processing is soft by Silkpix studio photo disposals
Part reads picture data.One group of serial-gram that experiment is shot in the process is handled, is read and shone with photo disposal software
The pixel coordinate of mark point in piece, counts the pixel coordinate of different mark points in one group of photo respectively from top to bottom, and passes through photograph
Engineer's scale in piece converts with pixel, obtains the proportionate relationship of pixel and real displacement.By every photo point of statistics
Data import PaintShop generation point curve figure and carry out to when data analysis.Record curve graph as shown in Figure 3.Three in figure
Curve represents that for 3 group echo points under instrument effect, displacement changes over time curve in same group of experiment.By analyzing curve
Changing rule, it can be deduced that the law of development of rock mass bending deformation and development trend.
Claims (10)
1. field Stratified Rock Slope rock mass bending damage experimental rig, which is characterized in that including pressurized equipment and recording equipment
（8）, the pressurized equipment include pressurizing member（1）, the pressurizing member（1）Cap rock layer can be embedded in（6）And basal bed
（7）Between and perpendicular to level rock to cap rock layer（6）And basal bed（7）It pressurizes；The recording equipment（8）Face
Test area set, for pressurized equipment to rock stratum apply press process in continuously fixed point shooting rock mass.
2. field Stratified Rock Slope rock mass bending damage experimental rig according to claim 1, which is characterized in that described
Pressurizing member（1）For jack.
3. field Stratified Rock Slope rock mass bending damage experimental rig according to claim 1, which is characterized in that described
The both ends of pressurizing member are respectively arranged with top compression plate（2）With bottom compression plate（3）, the top compression plate（2）Against top
Portion rock stratum（6）And between cap rock layer and the pressurizing member, the bottom compression plate（3）Against basal bed（7）And
Between basal bed and pressurizing member.
4. field Stratified Rock Slope rock mass bending damage experimental rig according to claim 1, which is characterized in that described
Pressurizing member（1）Pass through hydraulic tube（5）It is connected with hydraulic pump（4）.
5. field Stratified Rock Slope rock mass bending damage experimental rig according to claim 4, which is characterized in that described
Hydraulic pump（4）It is pumped for hand-held hydraulic.
6. field Stratified Rock Slope rock mass bending damage experimental rig according to claim 2, which is characterized in that described
Recording equipment（8）Including camera.
7. field Stratified Rock Slope rock mass bending damage test method, which is characterized in that include the following steps：
（1）Optional test point selects rock stratum condition that can preferably consolidate the beded rock mass of embedded installation pressurizing member, then in rock
The exposure position choice arrangement test area of Toppling Deformation not yet occurs for layer；
（2）In test area, pressurizing member is stablized in the groove between embedded basal bed and cap rock layer, make pressurization first
The compression aspect of part is perpendicular to level rock；Meanwhile record the preceding rock stratum apparent dip that pressurizes；
（3）It is more with fixed intervals mark from top to bottom along single level in experiment rock stratum pressurized zone according to action rock mass size
A mark point；
（4）In face test area placement record equipment；
（5）Certain length is pulled out as scale by the use of tape measure near test area, starts pressurizing member to cap rock layer and bottom
Rock stratum is pressurizeed along perpendicular to level rock direction, while carries out continuous establishing shot to pressurized rock stratum with recording equipment, directly
Bending occurs to rock stratum to fracture and deform, pressurizing member stops pressurization.
8. test method according to claim 7, which is characterized in that in step（5）Step is also set up later（6）, will be real
The photo for testing middle shooting is handled and data analysis, and the displacement for obtaining each group mark point changes over time curve, so as to obtain
The law of development of rock mass bending deformation and development trend.
9. test method according to claim 7, which is characterized in that pressurizing member is jack.
10. test method according to claim 7, which is characterized in that the step（2）In, in the pressurizing member
After both ends set top compression plate and bottom compression plate respectively, by pressurizing member and the top compression plate and bottom compression at both ends
Plate is stablized together in the groove between embedded basal bed and cap rock layer, and the top compression plate is against cap rock layer and is located at
Between cap rock layer and the pressurizing member, the bottom compression plate is against basal bed and positioned at basal bed and pressurizing member
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282010.9A CN108254257B (en) | 2017-12-07 | 2017-12-07 | Testing device and testing method for bending failure of field layered rock slope rock mass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282010.9A CN108254257B (en) | 2017-12-07 | 2017-12-07 | Testing device and testing method for bending failure of field layered rock slope rock mass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108254257A true CN108254257A (en) | 2018-07-06 |
| CN108254257B CN108254257B (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711282010.9A Expired - Fee Related CN108254257B (en) | 2017-12-07 | 2017-12-07 | Testing device and testing method for bending failure of field layered rock slope rock mass |
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| Country | Link |
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| CN (1) | CN108254257B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556951A (en) * | 2019-01-09 | 2019-04-02 | 中国电建集团西北勘测设计研究院有限公司 | A kind of underwater deformable landslide mechanics test device of plate cracking hard rock and method |
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|---|---|---|---|---|
| CN102323150A (en) * | 2011-08-10 | 2012-01-18 | 中国地质科学院地质力学研究所 | Simulated test unit and method for slope stability with faulting |
| CN105911255A (en) * | 2016-06-13 | 2016-08-31 | 沈阳地球物理勘察院 | Stability study experiment table for rock ecological side slope new soil |
| CN106769501A (en) * | 2016-11-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of measuring method of the Deformation Module of Rock Mass of different depth |
| CN106855568A (en) * | 2017-01-23 | 2017-06-16 | 西南石油大学 | Model test apparatus and method of a kind of freeze thawing to rock slope with along layer near cut deformation effect |
-
2017
- 2017-12-07 CN CN201711282010.9A patent/CN108254257B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323150A (en) * | 2011-08-10 | 2012-01-18 | 中国地质科学院地质力学研究所 | Simulated test unit and method for slope stability with faulting |
| CN105911255A (en) * | 2016-06-13 | 2016-08-31 | 沈阳地球物理勘察院 | Stability study experiment table for rock ecological side slope new soil |
| CN106769501A (en) * | 2016-11-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of measuring method of the Deformation Module of Rock Mass of different depth |
| CN106855568A (en) * | 2017-01-23 | 2017-06-16 | 西南石油大学 | Model test apparatus and method of a kind of freeze thawing to rock slope with along layer near cut deformation effect |
Non-Patent Citations (2)
| Title |
|---|
| SONGFENG GUO ET AL.: "《An Analytical Solution for Block Toppling Failure of Rock Slopes during an Earthquake》", 《APPLIED SCIENCES》 * |
| 刘海军 等: "《层状岩质边坡倾倒变形破坏特征研究》", 《合肥工业大学学报（自然科学版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556951A (en) * | 2019-01-09 | 2019-04-02 | 中国电建集团西北勘测设计研究院有限公司 | A kind of underwater deformable landslide mechanics test device of plate cracking hard rock and method |
| CN109556951B (en) * | 2019-01-09 | 2021-03-19 | 中国电建集团西北勘测设计研究院有限公司 | Mechanical testing device and method for underwater dumping deformation body of plate cracking hard rock |
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