CN203502388U - Rock damage and penetration testing device - Google Patents
Rock damage and penetration testing device Download PDFInfo
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- CN203502388U CN203502388U CN201320617362.6U CN201320617362U CN203502388U CN 203502388 U CN203502388 U CN 203502388U CN 201320617362 U CN201320617362 U CN 201320617362U CN 203502388 U CN203502388 U CN 203502388U
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Abstract
The utility model discloses a rock damage and penetration testing device, comprising a rack body, wherein a pressure chamber is arranged inside the rack body; one end of the pressure chamber is connected with a hydraulic pump; one end of the hydraulic pump is connected with a water bath heating device; the other end of the pressure chamber is also connected with an ultrasonic tester; the pressure chamber comprises a hollow cylinder body; the upper end and the lower end inside the cylinder body are movably connected with a force transfer column I and a force transfer column II respectively; the force transfer column I and the force transfer column II respectively extend outwards along the cylinder body; a containing space for placing a hollow fracture rock specimen is arranged between the force transfer column I and the force transfer column II; an ultrasonic probe I and an ultrasonic probe II are respectively arranged inside the force transfer column I and the force transfer column II; the ultrasonic probe I and the ultrasonic probe II are connected with the ultrasonic tester; the upper end of the force transfer column II is connected with a force sensor; the top end of the force sensor is connected with a loading head; the loading head is connected with a displacement sensor.
Description
Technical field
The utility model relates to damage of rock and the pervasion test device under temperature, stress and the effect of hoop osmotic pressure.
Background technology
China is carrying out the construction in seabed tunnel and coastal waters tunnel, rich pool on a large scale at present, and due to seawater high pressure and corrosivity, cause the problems such as tunnel is prominent, water burst, in Han district subterranean tunnel, have the problem of temperature to shoulderbed effect, these factors are brought significant impact to engineering safety.To the evaluation of this class problem and prediction, need to further investigate research to the perviousness of rock under complicated coupling condition and damage feature.From rock temperature, stress and many, seepage flow, be coupled and damage the angle combining, can fundamentally solve better the problem running in engineering.
The object of rock damage measurement is, by introducing multi-level defect geometry structure, review from distortion, damage until the overall process of fracture, and then adopt grand-thin-description that microcosmic combines, provide the decision criteria of rock strength and carry out micro-crack, hole expansion, connect, destroy the research of overall process.The assay method of damage of rock quantification mainly contains: CT scan test, electrical measuring method, laser speckle photography method, sections observation etc.More conventional non-destructive testing method has ultrasonic listening, electrical measuring method and laser speckle photography method, and wherein ultrasound wave is widely used in the test of damage.Rock ultrasonic velocity energy concentrated expression rock interior degree of injury, uses the damage variable of the ultrasound wave definition of rock can explain the macromechanics effect of rock microcracks completely, sets up the bridge between mechanics of materials macroscopic appearance and microscopic mechanism.
Under many couplings of study of rocks, perviousness, damage feature have important practical significance.For the research under this complicated coupling effect, be unable to do without innovation and the research of testing equipment.At present, existing many about the testing equipment under coupling condition, but unified standard, test performance are not very different, and seldom the testing equipment of part can for people generally, be developed and also just rest on the research of particular problem mostly.Understand the existing open testing equipment of introducing, relate to temperature, stress, hoop to hoop seepage effect, and the test unit that can measure in real time damage of rock is not also seen open report.
Utility model content
The problem existing according to prior art, the utility model discloses a kind of damage of rock and pervasion test device, comprise: comprising: support body, in described support body, be provided with pressure chamber, one end of described pressure chamber is connected with hydraulic pump, one end of described hydraulic pump is connected with water bath heating device, and the other end of described pressure chamber is also connected with supersonic reflectoscope;
Described pressure chamber comprises the cylinder body of a hollow, the top and bottom of described cylinder interior are connected with respectively force-transmitting pole I and force-transmitting pole II, described force-transmitting pole I and force-transmitting pole II stretch out along described cylinder body respectively, between described force-transmitting pole I and force-transmitting pole II, be provided with the spatial accommodation of placing hollow fissure rock test specimen, in described force-transmitting pole I and force-transmitting pole II, be respectively arranged with ultrasonic probe I and ultrasonic probe II, described ultrasonic probe I is connected with described supersonic reflectoscope with ultrasonic probe II, the upper end of described force-transmitting pole II is connected with force cell, the top of described force cell is connected with loading head, on described loading head, be connected with displacement transducer.
On described support body, be fixedly connected with base, described base is fixedly connected with force-transmitting pole I, and the top of described loading head is provided with hydraulic jack, and described hydraulic jack is connected with described support body.
The bottom of described cylinder body and top are respectively arranged with lid I and the lid II matching with described shape of block.
Described cylinder body has inlet and liquid outlet, and described cylinder body is connected with described hydraulic pump by inlet, and described liquid outlet is connected with flowmeter by liquid output pipe road.
Between described force-transmitting pole I and cylinder body, be provided with O-ring seal I and O-ring seal II, described O-ring seal I is arranged on the below of liquid outlet, and described O-ring seal II is arranged on the top of liquid outlet, between described force-transmitting pole II and cylinder body, is provided with O-ring seal III.
Described pressure chamber also comprises sealing gasket I and sealing gasket I I, and while placing hollow fissure rock test specimen, described sealing gasket I is arranged at the below of hollow fissure rock test specimen, and described sealing gasket I I is arranged at the below of sky fissure rock test specimen.
Between described inlet and described hydraulic pump, be provided with stop valve and tensimeter.
Owing to having adopted technique scheme; the damage of rock that the utility model provides and pervasion test device; can real-time testing axial ultrasonic wave-wave test and the research of temperature on Penetration Signature impact of speed, special fissure rock hoop seepage flow; in order to ensure the sealing of hollow fissure rock test specimen and force-transmitting pole I and force-transmitting pole II contact portion and pressure chamber's liquid, this device is provided with O-ring seal and gasket seal carries out seal protection to pressure chamber.The control of percolating fluid temperature adopts a set of intelligent water bath heating device, and this heating arrangement has advanced inside and outside circulation impeller stirring system, makes Water Tank with Temp.-controlled internal temperature field evenly constant, has greatly improved temperature-controlled precision and uniform temperature fields degree.This damage of rock is relative with pervasion test device structure simple, has advantages of general applicability and accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that pressure chamber of the present utility model and hollow fissure rock test specimen are used in conjunction with.
Fig. 3 is the structural representation after hollow fissure rock test specimen of the present utility model amplifies.
Fig. 4 is the structural representation of pressure chamber of the present utility model.
Fig. 5 is the structural representation of the utility model cylinder body.
In figure: 1. pressure chamber; 2. base; 3. hydraulic jack; 4. loading head; 5. force cell; 6. supersonic reflectoscope; 7. water bath heating device; 8. hydraulic pump; 9. support body; 10. cylinder body; 11. force-transmitting pole I; 12-1. ultrasonic probe I; 12-2. ultrasonic probe II; 13-1. lid I; 13-2. lid II; 14-1. O-ring seal I; 14-2. O-ring seal II; 14-3. O-ring seal III; 15-1. sealing gasket I; 15-2. sealing gasket I I; 16. liquid outlets; 17. inlets; 18. liquid output pipe roads; 19. displacement transducers; 20. force-transmitting pole II; 21. stop valves; 22. tensimeters; 23. flowmeters; 24. holes; 26. hollow fissure rock test specimens; 27. spatial accommodations.
Embodiment
For making the technical solution of the utility model and advantage clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is known to complete description:
Damage of rock as shown in Figure 1 and pervasion test device, have support body 9, in the inside of this support body 9, be provided with pressure chamber 1, one end of pressure chamber 1 is connected with hydraulic pump 8, one end of hydraulic pump 8 is connected with water bath heating device 7, and the other end of described pressure chamber 1 is also connected with supersonic reflectoscope 6.Described hydraulic pump 8 provides osmotic pressure for hollow fissure rock test specimen 26.Permeation liquid can carry out temperature adjusting by water-bath temperature control heating device 7.
As Fig. 1, shown in Fig. 2 and Fig. 3, pressure chamber 1 comprises the cylinder body 10 of a hollow, the top and bottom of cylinder body 10 inside are connected with respectively force-transmitting pole I11 and force-transmitting pole II20, force-transmitting pole I11 and force-transmitting pole II20 stretch out along described cylinder body 10 respectively, between described force-transmitting pole I11 and force-transmitting pole II20, be provided with the spatial accommodation 27 of placing hollow fissure rock test specimen 26, in described force-transmitting pole I11 and force-transmitting pole II20, be respectively arranged with ultrasonic probe I12-1 and ultrasonic probe II12-2, described ultrasonic probe I12-1 is connected with described supersonic reflectoscope 6 with ultrasonic probe II12-2.The upper end of described force-transmitting pole II20 is fixedly connected with force cell 5, and the top of described force cell 5 is fixedly connected with loading head 4, is connected with displacement transducer 19 on loading head 4.
Further, be fixedly connected with base 2 on support body 9, base 2 is fixedly connected with force-transmitting pole I11, and the top of described loading head 4 is provided with hydraulic jack 3, and hydraulic jack 3 is connected with described support body 9.Hydraulic jack 3 passes through bolted with support body 9.
Further, as shown in Figure 2, on bottom and the top of cylinder body 10, be respectively arranged with lid I13-1 and the lid II13-2 matching with described cylinder body 10 shapes, utilize lid I13-1 and lid II13-2 that cylinder body 10 is covered tightly, guarantee the sealing state of pressure chamber 1.
Further, cylinder body 10 has inlet 17 and liquid outlet 16, and described cylinder body 10 is connected with described hydraulic pump 8 by inlet 17, and described liquid outlet 16 is connected with flowmeter 23 by liquid output pipe road 18.
For further sealing, as shown in Figure 4, below liquid outlet 16, between cylinder body 10 and force-transmitting pole I11, be provided with O-ring seal I14-1, above liquid outlet 16, O-ring seal II14-2 is set between cylinder body 10 and force-transmitting pole I11, realize the effect of double-layer seal.And be provided with O-ring seal III14-3 between cylinder body 10 and force-transmitting pole II20.Pressure chamber 1 is further sealed.
Further, as shown in Figure 4 and Figure 5, pressure chamber 1 also comprises sealing gasket I 15-1 and sealing gasket I I15-2, while placing hollow fissure rock test specimen 26, sealing gasket I 15-1 is arranged at the below of hollow fissure rock test specimen 26, and sealing gasket I I15-2 is arranged at the below of sky fissure rock test specimen 26.Make that hollow fissure rock test specimen 26 is sealed to be arranged in cylinder body 10.
Further, between inlet 17 and described hydraulic pump 8, be provided with stop valve 21 and tensimeter 22.
Further, liquid output pipe road 18 is connected with flowmeter 23.
Embodiment: the use step of this device is as follows: 1. rock is processed into the needed shape of experiment, this device adopts hollow fissure rock test specimen 26 to test, and this rock is made into multi-form special crack combination.
2. hollow fissure rock test specimen 26 is loaded in cylinder body 10, force-transmitting pole I11 is connected with cylinder body 10, on force-transmitting pole I11, be provided with the hole 24 being used in combination with liquid outlet 16, note when mounted hole 24 being connected with liquid outlet 16, to guarantee the outflow of seepage flow liquid.In force-transmitting pole I11 upper end, install sealing gasket I 15-1, the shape of sealing pad I15-1 matches with the shape of hollow fissure rock test specimen 26 and cylinder body 10, then hollow fissure rock test specimen 26 is placed in cylinder body 10, above hollow fissure rock test specimen 26, place again sealing gasket I I15-2, again force-transmitting pole II20 is connected with cylinder body 10, the upper end of force-transmitting pole II20 is connected with force cell 5, force cell 5 is connected with loading head 4 again, again by connection bit displacement sensor 19 on loading head 4, after hollow fissure rock test specimen 26 is installed, upper and lower at liquid outlet 16, between cylinder body 10 and force-transmitting pole I11, O-ring seal I14-1 is installed, above liquid outlet 16, between cylinder body 10 and force-transmitting pole I11, O-ring seal II14-2 is installed, between cylinder body 10 and force-transmitting pole II20, O-ring seal III14-3 is installed, utilize lid I13-1 and lid II13-2 that the bottom of cylinder body 10 and end sealing are covered tightly simultaneously, guarantee that hollow fissure rock test specimen 26 is completely sealed in cylinder body 10.
3. force-transmitting pole I11 is connected with supersonic reflectoscope 6 with ultrasonic probe II12-2 with the ultrasonic probe I12-1 in force-transmitting pole II20, the inlet of pressure chamber 1 17 is connected with hydraulic pump 8, hydraulic pump 8 is connected with water bath heating device 7, and is connected and has stop valve 21 and tensimeter 22 between inlet 17 and hydraulic pump 8.Temperature in water bath heating device 7 is adjusted to the needed temperature of experiment.
4. open hydraulic jack 3, hollow fissure rock test specimen 26 is applied to axle power, until force cell 5 stops while showing numerical value.The one, for the crush seal of hollow fissure rock test specimen 26 sections, the 2nd, for the debugging of ultrasonic device.Then open hydraulic pump 8, under the condition of seepage flow, test velocity of wave time initial value.
5. apply osmotic pressure: after above-mentioned sealing, open hydraulic pump 8, apply osmotic pressure, be determined at the velocity of wave travel-time under osmotic pressure effect simultaneously; Apply axle pressure: adjust hydraulic jack 3, hollow fissure rock test specimen 26 is loaded to test data sheet result: the seepage flow of liquid under synchronous recording velocity of wave, axial strain, load and different temperatures in test.
The disclosed damage of rock of the utility model and pervasion test device can carry out the different temperatures of different stress levels, seepage flow liquid, damage of rock and the perviousness correlation test under the effect of hoop osmotic pressure, adopt the special construction of hoop seepage pressure chamber 1 to combine from different hollow fissure rock test specimens 26, adopt 7 pairs of seepage flow liquid of water bath heating device to carry out temperature control, when measuring permeability, can measure the axial ultrasonic velocity of wave of rock sample, with the damage feature of this research material.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.
Claims (7)
1. a damage of rock and pervasion test device, it is characterized in that: comprising: support body (9), in described support body (9), be provided with pressure chamber (1), one end of described pressure chamber (1) is connected with hydraulic pump (8), one end of described hydraulic pump (8) is connected with water bath heating device (7), and the other end of described pressure chamber (1) is also connected with supersonic reflectoscope (6);
Described pressure chamber (1) comprises the cylinder body (10) of a hollow, the inner top and bottom of described cylinder body (10) are connected with respectively force-transmitting pole I(11) and force-transmitting pole II(20), described force-transmitting pole I(11) and force-transmitting pole II(20) along described cylinder body (10), stretch out respectively, described force-transmitting pole I(11) and force-transmitting pole II(20) between be provided with the spatial accommodation (27) of placing hollow fissure rock test specimen (26), described force-transmitting pole I(11) and force-transmitting pole II(20) in be respectively arranged with ultrasonic probe I(12-1) and ultrasonic probe II(12-2), described ultrasonic probe I(12-1) with ultrasonic probe II(12-2) be connected with described supersonic reflectoscope (6), described force-transmitting pole II(20) upper end is connected with force cell (5), the top of described force cell (5) is connected with loading head (4), on described loading head (4), be connected with displacement transducer (19).
2. a kind of damage of rock according to claim 1 and pervasion test device, be further characterized in that: on described support body (9), be fixedly connected with base (2), described base (2) and force-transmitting pole I(11) be fixedly connected with, the top of described loading head (4) is provided with hydraulic jack (3), and described hydraulic jack (3) is connected with described support body (9).
3. a kind of damage of rock according to claim 1 and pervasion test device, be further characterized in that: the bottom of described cylinder body (10) and top are respectively arranged with the lid I(13-1 matching with described cylinder body (10) shape) and lid II(13-2).
4. a kind of damage of rock according to claim 1 and pervasion test device, be further characterized in that: described cylinder body (10) has inlet (17) and liquid outlet (16), described cylinder body (10) is connected with described hydraulic pump (8) by inlet (17), and described liquid outlet (16) is connected with flowmeter (23) by liquid output pipe road (18).
5. a kind of damage of rock according to claim 1 and pervasion test device, be further characterized in that: described force-transmitting pole I(11) and between cylinder body (10) be provided with O-ring seal I(14-1) and O-ring seal II(14-2), described O-ring seal I(14-1) be arranged on the below of liquid outlet (16), described O-ring seal II(14-2) be arranged on the top of liquid outlet (16), described force-transmitting pole II(20) and cylinder body (10) between be provided with O-ring seal III(14-3).
6. a kind of damage of rock according to claim 1 and pervasion test device, be further characterized in that: described pressure chamber (1) also comprises sealing gasket I (15-1) and sealing gasket I I(15-2), while placing hollow fissure rock test specimen (26), described sealing gasket I (15-1) is arranged at the below of hollow fissure rock test specimen (26), described sealing gasket I I(15-2) be arranged at the below of sky fissure rock test specimen (26).
7. a kind of damage of rock according to claim 4 and pervasion test device, be further characterized in that: between described inlet (17) and described hydraulic pump (8), be provided with stop valve (21) and tensimeter (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617362.6U CN203502388U (en) | 2013-10-08 | 2013-10-08 | Rock damage and penetration testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617362.6U CN203502388U (en) | 2013-10-08 | 2013-10-08 | Rock damage and penetration testing device |
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| CN203502388U true CN203502388U (en) | 2014-03-26 |
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| CN201320617362.6U Expired - Fee Related CN203502388U (en) | 2013-10-08 | 2013-10-08 | Rock damage and penetration testing device |
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| CN103940976A (en) * | 2014-03-24 | 2014-07-23 | 中国地震局地壳应力研究所 | Pressure container with high impermeability used for rock tests of pressing crack, seepage and slight shock |
| CN104316447A (en) * | 2014-10-28 | 2015-01-28 | 中国矿业大学 | Fractured rock mass stress and seepage coupled testing system and method |
| CN104749044A (en) * | 2015-04-02 | 2015-07-01 | 北京科技大学 | Thermo-hydro-mechanical (THM) coupling simulation experiment system and use method thereof |
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| CN103940976B (en) * | 2014-03-24 | 2016-03-16 | 中国地震局地壳应力研究所 | For the high leakproofness pressure vessel of rock fracture seepage flow microseism test |
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