CN103335900A - Field servo control rock mass rheological tester - Google Patents
Field servo control rock mass rheological tester Download PDFInfo
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- CN103335900A CN103335900A CN2013103112663A CN201310311266A CN103335900A CN 103335900 A CN103335900 A CN 103335900A CN 2013103112663 A CN2013103112663 A CN 2013103112663A CN 201310311266 A CN201310311266 A CN 201310311266A CN 103335900 A CN103335900 A CN 103335900A
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Abstract
The invention discloses a field servo control rock mass rheological tester, which comprises a rock mass test piece, a hydraulic jack, a pressure sensor and a displacement sensor, and is characterized in that the field servo control rock mass rheological tester comprises a loading system and a measuring system, wherein the loading system is formed in a way that a gas pump is connected with a gas-liquid pump, the gas-liquid pump is connected with the pressure sensor and a control valve, and is connected to the hydraulic jack; the measuring system is formed in a way that the hydraulic jack is arranged on the rock mass test piece, and the displacement sensor is arranged on the surface of the rock mass test piece; the pressure sensor and the displacement sensor are respectively connected to a computer acquisition controller, and an automatic acquisition system is used for automatic acquisition of displacement data and pressure data. According to the field servo control rock mass rheological tester, by adopting the gas-liquid pump to provide a long-term constant load, a loading device can be selected according to requirements of a field test, and cannot be influenced by a humid environment, and the problems on voltage stabilization performance, reliability and universality of a field test device are solved.
Description
Technical field
The invention belongs to rock mass mechanics experimental technique field, relate to and be applicable to the test of Test in Situ load rheological test, shear rheology and triaxial rheology test unit, relate in particular to a kind of on-the-spot servocontrol rock mass rheological test instrument.
Background technology
The dead load mode loading equipemtn of present indoor rock rheological test is exerted oneself generally less, test specimen is little, should diminish, test duration is long, therefore test specimen, testing equipment and experimental enviroment there are certain requirement, test specimen machining precision height, test ambient temperature and temperature can accurately be controlled, the load good stability, test stress and deformation stability are strong.
The Test in Situ rheological test is compared with indoor rock rheological test, and have following characteristics: 1) sample dimensions is big, thereby loading equipemtn is exerted oneself greatly; 2) experimental enviroment humidity; 3) the test place is unfixing.Therefore, when the dead load mode of indoor rock rheological test is applied to the Test in Situ rheological test, have weak point: ball screw, counterweight counterweight voltage regulation way are exerted oneself less than normal; Motor is servo, the influence of digital servo voltage regulation way moisture-sensitive wet environment, poor reliability; A rock mass engineering project often need to carry out dissimilar in-situ rheology tests, and existing test apparatus versatility is poor.Accumulator, hydraulic pressure voltage regulation way also have deficiency: accumulator is by storing calm the anger body or liquid in bigger container, supplementary pressure loses, and when test piece deformation was big, its pressure compensation ability can not meet the demands; Hydraulic pressure voltage regulation way equipment heaviness, hydraulic system complexity, operability, reliability are all relatively poor.
Summary of the invention
The objective of the invention is in order to overcome the defective of prior art, a kind of on-the-spot servocontrol rock mass rheological test instrument is provided, adopts Gas-liquid pump that long-term constant voltage load is provided, can be according to the site test needs, select varying number, dissimilar loading equipemtn for use, and be not subjected to the influence of wet environment; Adopt the computer-automatic collection system to gather displacement, pressure data automatically, solved existing test unit problem aspect voltage regulation performance, reliability, versatility.
The technical solution adopted for the present invention to solve the technical problems is: a kind of on-the-spot servocontrol rock mass rheological test instrument, comprise rock mass test specimen, hydraulic jack, pressure transducer, displacement transducer, it is characterized in that: on-the-spot servocontrol rock mass rheological test instrument is made up of load system and measuring system:
Wherein, load system is that air pump inserts Gas-liquid pump, Gas-liquid pump cut-in pressure sensor, operation valve, and link to each other with hydraulic jack;
Wherein, measuring system is provided with hydraulic jack for the rock mass test specimen, and displacement transducer is placed in rock mass test specimen surface;
Described pressure transducer, displacement transducer insert the computer acquisition controller respectively and link to each other.
In the technique scheme, it comprises that also described Gas-liquid pump is connected to pressure regulator valve.
The invention has the beneficial effects as follows:
1, the load system main member is air pump, Gas-liquid pump, the control of hydraulic jack employing machinery, and air pump provides pressurized air source, and Gas-liquid pump is connected with lifting jack, and trial load is provided, and is applicable to the wet environment in the cavern.
2, the load system versatility is good, can connect loading equipemtn dissimilar, varying number as required, high trial load can be provided, can carry out multiple spot rock mass load creep test simultaneously.
3, the measuring system main member is displacement transducer, pressure transducer, computer acquisition controller, displacement transducer is installed on the displacement measuring points of test specimen, measure the displacement at the displacement measuring points place of test specimen, pressure transducer is connected with hydraulic jack with Gas-liquid pump, measures the hydraulic pressure of load system.The computer acquisition controller is connected with displacement transducer, pressure transducer respectively, displacement, the test pressure of record test specimen, and form chart.
4, each component volume is little, in light weight, and each member of load system adopts titer pressure pipe or tracheae to connect, and each member of measuring system adopts normal data line to connect, and the dismounting of rheological test instrument, installation, carrying, arrangement convenience are applicable to the site test environment.
Description of drawings
Fig. 1 is on-the-spot servocontrol rock mass rheological test instrument structural representation.
The 1-air pump; The 2-Gas-liquid pump; The 3-pressure regulator valve; The 4-pressure transducer; The 5-operation valve; The 6-hydraulic jack; The 7-displacement transducer; 8-computer acquisition controller; 9-rock mass test specimen.
Embodiment
As shown in Figure 1, the on-the-spot servocontrol rock mass of the present invention rheological test instrument is made up of load system and measuring system, the load system main member is air pump 1, Gas-liquid pump 2, hydraulic jack 6, and the measuring system main member is pressure transducer 4, displacement transducer 7, computing machine 8.
Air pump 1 is connected with Gas-liquid pump 2 by tracheae, provides pressurized air source.Set the startup air pressure threshold values P1 of air pump 1 and air pressure threshold values P2 out of service, when the air pressure in the cylinder of air pump 1 was lower than P1, air pump 1 started automatically, and the air pressure in cylinder reaches P2, and air pump 1 is out of service.
Gas-liquid pump 2 one ends connect lifting jack 6 by hydraulic tube through operation valve 5 by tracheae connection air pump 1, an end, for lifting jack 6 provides constant hydraulic pressure.Elder generation's closed control valve 5 is regulated pressure regulator valve 3, and Gas-liquid pump 2 brings into operation, and reaches test pressure P3 and keeps constant until pressure transducer 4 force value, and Gas-liquid pump 2 is out of service; Opening controlling valve 5 is given test specimen 9 load applications by lifting jack 6, and hydraulic pressure descends, and Gas-liquid pump 2 moves again, and to test pressure P3, Gas-liquid pump 2 is out of service until hydraulic recovery.The setting of the startup air pressure threshold values P1 of air pump 1 makes that the air pressure of Gas-liquid pump 2 is lower than the startup air pressure threshold values P1 of air pump 1 when the hydraulic pressure of Gas-liquid pump 2 reaches test pressure P3.
Claims (2)
1. on-the-spot servocontrol rock mass rheological test instrument, comprise rock mass test specimen (9), hydraulic jack (6), pressure transducer (4), displacement transducer (7), it is characterized in that: on-the-spot servocontrol rock mass rheological test instrument is made up of load system and measuring system:
Wherein, load system is that air pump (1) inserts Gas-liquid pump (2), Gas-liquid pump (2) cut-in pressure sensor (4), operation valve (5), and link to each other with hydraulic jack (6);
Wherein, measuring system is that rock mass test specimen (9) is provided with hydraulic jack (6), and displacement transducer (7) is placed in rock mass test specimen (9) surface;
Described pressure transducer (4), displacement transducer (7) insert computer acquisition controller (8) respectively and link to each other.
2. a kind of on-the-spot servocontrol rock mass rheological test instrument according to claim 1, it is characterized in that: described Gas-liquid pump (2) is connected to pressure regulator valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103112663A CN103335900A (en) | 2013-07-22 | 2013-07-22 | Field servo control rock mass rheological tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103112663A CN103335900A (en) | 2013-07-22 | 2013-07-22 | Field servo control rock mass rheological tester |
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| CN103335900A true CN103335900A (en) | 2013-10-02 |
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| CN2013103112663A Pending CN103335900A (en) | 2013-07-22 | 2013-07-22 | Field servo control rock mass rheological tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560933A (en) * | 2017-10-25 | 2018-01-09 | 北京富力通达科技有限公司 | A kind of device and method of big load testing machine loading and measurement |
| CN107957376A (en) * | 2017-12-20 | 2018-04-24 | 长江水利委员会长江科学院 | A kind of microcomputer electric gas/liquid pressure servo joint control field rock-soil mechanics experimental rig and method |
| CN111288042A (en) * | 2018-12-07 | 2020-06-16 | 中车唐山机车车辆有限公司 | Air floatation support preloading system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3331915A1 (en) * | 1983-09-03 | 1985-04-04 | Szecowka, Zdzislaw, Dr., 5600 Wuppertal | Method and arrangement for measuring the mechanical properties of rock and minerals "in situ" for determining the rock-burst tendency of the deposit and the country rock |
| CN102230869A (en) * | 2011-03-31 | 2011-11-02 | 长江水利委员会长江科学院 | Tester of on-site rheology of rock mass and its testing method |
| CN202512030U (en) * | 2012-01-09 | 2012-10-31 | 长江水利委员会长江科学院 | Servo-control rock triaxial rheological testing device |
-
2013
- 2013-07-22 CN CN2013103112663A patent/CN103335900A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3331915A1 (en) * | 1983-09-03 | 1985-04-04 | Szecowka, Zdzislaw, Dr., 5600 Wuppertal | Method and arrangement for measuring the mechanical properties of rock and minerals "in situ" for determining the rock-burst tendency of the deposit and the country rock |
| CN102230869A (en) * | 2011-03-31 | 2011-11-02 | 长江水利委员会长江科学院 | Tester of on-site rheology of rock mass and its testing method |
| CN202512030U (en) * | 2012-01-09 | 2012-10-31 | 长江水利委员会长江科学院 | Servo-control rock triaxial rheological testing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560933A (en) * | 2017-10-25 | 2018-01-09 | 北京富力通达科技有限公司 | A kind of device and method of big load testing machine loading and measurement |
| CN107957376A (en) * | 2017-12-20 | 2018-04-24 | 长江水利委员会长江科学院 | A kind of microcomputer electric gas/liquid pressure servo joint control field rock-soil mechanics experimental rig and method |
| CN107957376B (en) * | 2017-12-20 | 2020-04-14 | 长江水利委员会长江科学院 | Micro-electro-mechanical gas-liquid servo joint control field rock-soil mechanical test device and method |
| CN111288042A (en) * | 2018-12-07 | 2020-06-16 | 中车唐山机车车辆有限公司 | Air floatation support preloading system and method |
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Application publication date: 20131002 |