CN204613033U - Original position rock mechanics system - Google Patents
Original position rock mechanics system Download PDFInfo
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- CN204613033U CN204613033U CN201520192595.5U CN201520192595U CN204613033U CN 204613033 U CN204613033 U CN 204613033U CN 201520192595 U CN201520192595 U CN 201520192595U CN 204613033 U CN204613033 U CN 204613033U
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- original position
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Abstract
The utility model relates to a kind of original position rock mechanics system and method.The purpose of this utility model is to provide a kind of original position rock mechanics system and method, with the relax level of Control Assay, and obtains original state and excavates easy load-reief loosen rock mass and a certain Mechanics Parameters of Rock Mass determined under relax level.The technical solution of the utility model is: this system chooses sample on country rock, and sample surrounding excavation has a circle periphery anchor hole groove, and arrange the radial pressue device of sample in periphery anchor hole groove, sample end face arranges sample axial pressurizing device; Periphery anchor hole groove is interior, each side of corresponding sample arranges a radial deformation survey table, sample end face arranges axial deformation survey table, on sample, excavation is communicated with axial deformation and the sound wave gaging hole of sample end face and bottom surface, arrange axial deformation survey table at the bottom of axial deformation and sound wave gaging hole hole, radial deformation surveys table and axial deformation surveys table through data line, electronic data acquisition system electrical connection computing machine.The utility model is applicable to obtain original position Mechanics Parameters of Rock Mass.
Description
Technical field
The utility model relates to a kind of original position rock mechanics system.Be applicable to obtain original position Mechanics Parameters of Rock Mass.
Background technology
Obtain original state Mechanics Parameters of Rock Mass and generally adopt on-the-spot true triaxial rock mechanics, but for the easy load-reief loosen rock mass of excavation, due to relaxation property easy after its excavation, and test in preparation process and the relax level of sample is not controlled, namely sample has occurred strong lax after preparation completes, cause test can not obtain the mechanics parameter that original state excavates easy load-reief loosen rock mass, test result only can characterize the Mechanical property with certain relax level.Cannot obtain by general on-the-spot true triaxial rock mechanics method the Mechanics Parameters of Rock Mass that original state excavates easy load-reief loosen rock mass, bring difficulty to the engineering property evaluating the easy load-reief loosen rock mass of excavation, easily cause misjudgment.
Summary of the invention
The technical problems to be solved in the utility model is: for above-mentioned Problems existing, the original position rock mechanics system providing a kind of structure simple, easy to operate, with the relax level of Control Assay, and obtain original state and excavate easy load-reief loosen rock mass and a certain Mechanics Parameters of Rock Mass determined under relax level.
The technical scheme that the utility model adopts is: a kind of original position rock mechanics system, country rock chooses sample, it is characterized in that: described sample surrounding excavation has a circle periphery anchor hole groove, arrange the radial pressue device of sample in periphery anchor hole groove, described sample end face arranges sample axial pressurizing device; Described periphery anchor hole groove is interior, each side of corresponding sample arranges a radial deformation survey table, described sample end face arranges axial deformation survey table, on sample, excavation is communicated with axial deformation and the sound wave gaging hole of sample end face and bottom surface, arrange axial deformation survey table at the bottom of axial deformation and sound wave gaging hole hole, described radial deformation surveys table and axial deformation surveys table through data line, electronic data acquisition system electrical connection computing machine;
The radial pressue device of described sample is the flat jack of the rectangular flat of parallel sample side arrangement, sample confined pressure counter-force is passed to country rock by flat jack, this flat jack is communicated with Hydraulic servo system through oil pipe, supercharger, servo-valve, and servo-valve is electrically connected with described electronic data acquisition system.
The roller bearing that described flat jack is axial arranged with being provided with some vertical samples between sample.
Be divided into two parts about described sample side, every part is corresponding arranges roller bearing described in flat jack described in one and a group.
Described axial pressurizing device comprises some lifting jack be fixed on country rock, and sample end face is withstood through billet in lifting jack lower end, and this lifting jack is communicated with Hydraulic servo system through oil pipe, supercharger, servo-valve, and servo-valve is electrically connected with described electronic data acquisition system.
The country rock above sample is withstood through billet, force-transmitting pole and billet successively in described lifting jack upper end.
Arrange shape steel bracket above described sample, this shape steel bracket is fixed on the country rock of sample periphery, and described radial deformation survey table and axial deformation survey table are fixed on shape steel bracket through extending measuring staff.
Described radial deformation surveys epi-position in sample center side position, and the axial deformation of described sample end face surveys epi-position in end face center, and described axial deformation and sound wave gaging hole are arranged in sample eccentric position.
The beneficial effects of the utility model are: the utility model is by arranging flat jack in sample side, can in the on-the-spot true triaxial test process to the easy load-reief loosen rock mass of excavation, the relax level of Control Assay easily, obtain its original state not/micro-relaxed state and a certain mechanics parameter determined under relax level.The method of the Control Assay relax level taked is simple, on-the-spot easy to operate.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram in the utility model.
Fig. 2 ~ Fig. 5 is the digging process schematic diagram of sample periphery anchor hole groove in the utility model.
Fig. 6 is the structural arrangement schematic diagram of the utility model Shaped Steel support.
Embodiment
As shown in Figure 1, the present embodiment is a kind of original position rock mechanics system, country rock 1 is chosen sample 2, and have a circle periphery anchor hole groove 19 at sample 2 surrounding excavation, sample radial pressue device is set in periphery anchor hole groove 19, the radial pressue device of this sample is the flat jack 4 of the rectangular flat of parallel sample 2 side arrangement, and corresponding each side arrangement has the two pieces of flat jacks 4 in left and right, flat jack 4 is communicated with Hydraulic servo system 16 through oil pipe 12, supercharger 14, servo-valve 15, and servo-valve 15 is electrically connected computing machine 18 through electronic data acquisition system 17.During for reducing sample 2 axial compression, the friction force on sample 2 surface, is provided with one group of roller bearing 3 between each flat jack 4 and sample 2, the vertical sample 2 of roller bearing 3 axial arranged.At sample 2 end face, sample axial pressurizing device is set, this sample axial pressurizing device comprises the lifting jack 6 that four are evenly arranged in sample 2 end face, sample 2 end face is withstood through billet 5 in lifting jack 6 lower end, and the country rock 1 above sample 2 is withstood through billet 5, force-transmitting pole 7 and billet 5 successively in lifting jack 6 upper end.Lifting jack 6 is communicated with Hydraulic servo system 16 through oil pipe 12, supercharger 14, servo-valve 15, and servo-valve 15 is electrically connected computing machine 18 through electronic data acquisition system 17.
In the present embodiment in periphery anchor hole groove 19, the center of each side of corresponding sample 2 arranges a radial deformation survey table 10, sample 2 end face center arranges axial deformation survey table 11, on sample 2, eccentric position is drilled with the axial deformation and sound wave gaging hole 20 that are communicated with sample end face and bottom surface, arranges axial deformation survey table 11 at the bottom of axial deformation and sound wave gaging hole 20 hole.As shown in Figure 6, arrange shape steel bracket 8 in this example above sample 2, this shape steel bracket is fixed on the country rock 1 of sample periphery, and radial deformation survey table 10 and axial deformation survey table 11 are fixed on shape steel bracket 8 through extending measuring staff 9.Radial deformation survey table 10 and axial deformation survey table 11 are all electrically connected computing machine 18 through data line 13, electronic data acquisition system 17.
In this example, the function of Hydraulic servo system 16 is to provide steady pressure, the function of servo-valve 15 is the pressure that the instruction sent by computing machine 18 regulates Hydraulic servo system 16 to provide, the function of electronic data acquisition system 17 is that the instruction sent computing machine 18 is changed, transmits and shown, oil pressure and deformation data are gathered, process and are transmitted back to computing machine 18 simultaneously, the function of computing machine 18 is display each several part oil pressure, distortion measured value, and send instruction to electronic data acquisition system 17 process of the test is controlled.
The concrete steps of the present embodiment are as follows:
A, first by on-the-spot detecting earth stress and numerical simulation, determine initial field stress state residing for position, testing site;
B, at sample 2 top, concrete mortar is wiped one's face, and reduces sample top rock mass and relaxes;
C, sample 2 excavate before, be drilled with axial deformation and sound wave gaging hole 20 in sample 2 surface decentration position, and carry out rock mass sonic detection, in this, as rock mass relaxation degree contrast standard;
D, employing rig, along the boring of sample 2 surrounding, when often exposing a half of sample 2 length of side, put into roller bearing 3 and flat jack 4 successively, then apply the pressure matched with initial field stress to sample 2 by Hydraulic servo system 16; Operation like this, until sample 2 four limit discloses completely, roller bearing 3 and flat jack 4 are installed and exerted pressure (see Fig. 2 ~ Fig. 5) to sample;
E, again sonic detection is carried out to sample 2, evaluate sample preparation complete after the relax level of sample;
F, installation rock mass true triaxial test equipment, comprise sample axial pressurizing device, radial deformation survey table 10 and axial deformation survey table 11;
G, keep stable by the confined pressure of servo-valve 15 Control Assay, carry out rock mass true triaxial test, obtain original state not/micro-relaxed state under Mechanics Parameters of Rock Mass; Or reduce sample 2 confined pressure to specified pressure, the relax level of Control Assay, and by sonic detection assessment of result specimen relaxation state, obtain sample 2 at a certain Mechanics Parameters of Rock Mass determined under relaxed state.
The present embodiment is often excavating out the half of one side length of side of sample 2, put into roller bearing 3 and flat jack 4 in time, and by flat jack 4 to the pressure that sample 2 applies and initial field stress matches, be maintained sample confined pressure, avoid specimen relaxation, until sample 2 four limit is all excavated, applied confined pressure and complete.
Claims (7)
1. an original position rock mechanics system, country rock (1) is chosen sample (2), it is characterized in that: described sample (2) surrounding excavation has circle periphery anchor hole groove (19), arrange the radial pressue device of sample in periphery anchor hole groove (19), described sample (2) end face arranges sample axial pressurizing device, in described periphery anchor hole groove (19), each side of corresponding sample (2) arranges a radial deformation survey table (10), described sample (2) end face arranges axial deformation survey table (11), sample (2) is drilled with the axial deformation and sound wave gaging hole (20) that are communicated with sample end face and bottom surface, at the bottom of axial deformation and sound wave gaging hole (20) hole, axial deformation survey table (11) is set, described radial deformation surveys table (10) and axial deformation surveys table (11) through data line (13), electronic data acquisition system (17) electrical connection computing machine (18),
The radial pressue device of described sample is the flat jack (4) of the rectangular flat of parallel sample (2) side arrangement, this flat jack is communicated with Hydraulic servo system (16) through oil pipe (12), supercharger (14), servo-valve (15), and servo-valve (15) is electrically connected with described electronic data acquisition system (17).
2. original position rock mechanics system according to claim 1, is characterized in that: be provided with the roller bearing (3) that some vertical samples are axial arranged between described flat jack (4) with sample (2).
3. original position rock mechanics system according to claim 2, it is characterized in that: be divided into two parts about described sample (2) side, every part is corresponding arranges roller bearing (3) described in flat jack (4) described in one and a group.
4. the original position rock mechanics system according to claims 1 to 3 any one, it is characterized in that: described axial pressurizing device comprises some lifting jack (6) be fixed on country rock (1), sample (2) end face is withstood through billet (5) in lifting jack (6) lower end, this lifting jack is communicated with Hydraulic servo system (16) through oil pipe (12), supercharger (14), servo-valve (15), and servo-valve (15) is electrically connected with described electronic data acquisition system (17).
5. original position rock mechanics system according to claim 4, is characterized in that: described lifting jack (6) upper end withstands the country rock (1) of sample (2) top successively through billet (5), force-transmitting pole (7) and billet (5).
6. original position rock mechanics system according to claim 1, it is characterized in that: described sample (2) top arranges shape steel bracket (8), this shape steel bracket is fixed on the country rock (1) of sample periphery, and described radial deformation surveys table (10) and axial deformation survey table (11) is fixed on shape steel bracket (8) through extending measuring staff (9).
7. original position rock mechanics system according to claim 1, it is characterized in that: described radial deformation is surveyed table (10) and is positioned at sample (2) center side position, the axial deformation of described sample (2) end face is surveyed table (11) and is positioned at end face center, and described axial deformation and sound wave gaging hole (20) are arranged in sample (2) eccentric position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192595.5U CN204613033U (en) | 2015-04-01 | 2015-04-01 | Original position rock mechanics system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192595.5U CN204613033U (en) | 2015-04-01 | 2015-04-01 | Original position rock mechanics system |
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| Publication Number | Publication Date |
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| CN204613033U true CN204613033U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520192595.5U Withdrawn - After Issue CN204613033U (en) | 2015-04-01 | 2015-04-01 | Original position rock mechanics system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749036A (en) * | 2015-04-01 | 2015-07-01 | 中国电建集团华东勘测设计研究院有限公司 | In-situ rock-mass mechanic test system and in-situ rock-mass mechanic test method |
| CN105510393A (en) * | 2015-12-03 | 2016-04-20 | 中国矿业大学(北京) | Multi-parameter monitoring system and method for consolidation characteristics of cemented backfill |
| CN108106944A (en) * | 2018-02-27 | 2018-06-01 | 中国科学院武汉岩土力学研究所 | A kind of original position rock mass triaxial rheological experiment device |
-
2015
- 2015-04-01 CN CN201520192595.5U patent/CN204613033U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749036A (en) * | 2015-04-01 | 2015-07-01 | 中国电建集团华东勘测设计研究院有限公司 | In-situ rock-mass mechanic test system and in-situ rock-mass mechanic test method |
| CN104749036B (en) * | 2015-04-01 | 2017-08-29 | 中国电建集团华东勘测设计研究院有限公司 | Rock mechanics system and method in situ |
| CN105510393A (en) * | 2015-12-03 | 2016-04-20 | 中国矿业大学(北京) | Multi-parameter monitoring system and method for consolidation characteristics of cemented backfill |
| CN105510393B (en) * | 2015-12-03 | 2019-10-01 | 中国矿业大学(北京) | A kind of the multi-parameter detection system and its monitoring method of cemented fill consolidation characteristics |
| CN108106944A (en) * | 2018-02-27 | 2018-06-01 | 中国科学院武汉岩土力学研究所 | A kind of original position rock mass triaxial rheological experiment device |
| CN108106944B (en) * | 2018-02-27 | 2023-10-03 | 中国科学院武汉岩土力学研究所 | Triaxial rheological test device for in-situ rock mass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Liangquan Inventor after: Jiang Yali Inventor before: Li Liangquan Inventor before: Jiang Yali |
|
| COR | Change of bibliographic data | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170829 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170829 |