CN102735551A - Lever type soft rock/hard soil uniaxial compression deformation test apparatus - Google Patents
Lever type soft rock/hard soil uniaxial compression deformation test apparatus Download PDFInfo
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- CN102735551A CN102735551A CN2012101830053A CN201210183005A CN102735551A CN 102735551 A CN102735551 A CN 102735551A CN 2012101830053 A CN2012101830053 A CN 2012101830053A CN 201210183005 A CN201210183005 A CN 201210183005A CN 102735551 A CN102735551 A CN 102735551A
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Abstract
A lever type soft rock/hard soil uniaxial compression deformation test apparatus is characterized in that the apparatus mainly comprises a water tank (1), a pressurization frame (2), a dial gauge (4), a pressure chamber (5), a water inlet tube (6), a water discharge tube (8), a pressurization shaft (11), an upper water discharge tube (12), a water guide tube (14), a top cap (15), an upper water-permeable stone (16), a lower water-permeable stone (18), a pedestal (19), a water measure tube (20), a lower water discharge tube (23), a pressure chamber pedestal (24), a fixed bolt (25), a pressurization lever (30) and the like. The apparatus is simple to manufacture, has a high measure precision, satisfies sample solidification and creep deformation control requirements, can be used for directly determining the long-term creep deformation compressive strength and the deformation parameters of various soft rocks and hard soils under a saturated or non-saturated condition, and can also be used for the indoor or onsite test of various soft rocks and hard soils in the civil engineering.
Description
Technical field
The present invention is a kind of geotechnological proving installation, belongs to building (ground) field of engineering technology.
Background technology
Chinese scholars is divided into the rock mass (rock) and the soil body (soil) to geologic body; They become rock mechanics and soil mechanics research object independently separately respectively; Under the guiding of this ideological trend, the research of expansive rock and swelled ground is carried out respectively, but going deep into along with research; Each state has all run into a large amount of " rock or not, soil is or not ", the geologic body of " like the non-rock of rock, like native non-soil ".Proposed to be different from the notion " soft rock/pan soil " of rock and soil in the international symposium that 1993 hold in Athens, advocated and specialize in.To this " soft rock/pan soil ", under the test condition of different tests regulation and stipulation, it is very big that the distortion of swelling property ground and intensity index differ, and the modulus that the rock test method obtains is equivalent to 9-30 times of soil test result.The test of the long-term creep strength of rock soil mass and rule thereof problem demanding prompt solution especially particularly.
Reasons such as for a long time, the long-term uniaxial compressive strength that carries out the rock soil mass sample all is to utilize the compression strength value of short-term to replace, and main because single shaft resistance to compression long-term strength test period is longer, and instrument control is stable inadequately, and the test data discreteness is big.And Chinese scholars is very big to the understanding difference of long-term strength, mainly contains following 4 kinds of schools: 1. long-term strength reduces group; 2. long-term strength improves group; 3. the constant group of long-term strength; 4. the indefinite group of long-term strength.The long-term creep shearing strength of soft rock/pan soil will just can be drawn a conclusion through theoretical analysis and experimental test according to actual conditions.Under the different tests condition, testing the long-term creep strength of soft rock/pan soil, is the basis of carrying out theoretical analysis.At present both at home and abroad also comparatively unripe be used for measuring soft rock/pan soil single shaft resistance to compression creep test device under no confining pressure.This application is exactly to invent a kind of single shaft resistance to compression creep test device of soft rock/pan soil under state of saturation or unsaturated state condition that be directed against.
Summary of the invention
The object of the invention provides a kind of lever soft rock/pan soil uniaxial compression deformation testing device, solves the long-term creep of soft rock/pan soil under saturated or unsaturated state and the measurement problem of longtime compressive strength.
Technical solution of the present invention is characterized in that utilizing a kind of lever soft rock/pan soil uniaxial compression deformation testing device, and this device comprises water tank 1, increased pressure frame 2, bolt 3, clock gauge 4, pressure chamber 5; Water inlet pipe 6, water inlet pipe valve 7, drainpipe 8, drainpipe valve 9, rotation axis 10, pressuring shaft 11, last drainpipe 12; Last drainpipe valve 13, aqueduct 14, top cap 15, upper dankness stone 16, sample 17, following permeable stone 18; Base 19, water column 20, aqueduct valve 21, following drainpipe valve 22, following drainpipe 23, pressure chamber's base 24; Gim peg 25, counterweight 26, big counterweight 27, the first suspension hooks 28, the second suspension hooks 29, pressurization lever 30.Water tank 1 links to each other with pressure chamber's base 24 through water inlet pipe 6, and water inlet pipe 6 is through 7 controls of water inlet pipe valve, and drainpipe 8 is through 9 controls of drainpipe valve; Last drainpipe 12 is through last drainpipe valve 13 controls, and following drainpipe 23 is through drainpipe 22 controls down, and pressure chamber 7 links to each other with water column 20 through aqueduct 14; Aqueduct 14 is installed permeable stone 18 down through 21 controls of aqueduct valve above the base 19, above the following permeable stone 18 sample 17 that is with rubber diaphragm is installed; Install permeable stone 16 above the sample 17, top cap 15 is installed above the upper dankness stone 16, top cap 15 is aimed at pressuring shaft 11; Pressuring shaft 11 is passed pressure chamber 5 and is connected with increased pressure frame 2; Pressure chamber 5 is connected with pressure chamber's base through bolt 3, and clock gauge 4 is installed in the pressure chamber, and increased pressure frame 2 is connected with pressure chamber's base 24 through gim peg 25; Gim peg 25, big counterweight 27 are connected through rotation axis 10, first suspension hook 28 with pressurization lever 30, and pressurization lever 30 is connected through second suspension hook 29 with counterweight 26.
Advantage of the present invention:
The instrument manufacturing is simple, and measuring accuracy is high, satisfies that sample is fixed, creep control requirement, can directly measure various soft rocks, pan soil long-term creep compressive strength and the deformation parameter under saturated or operate under unsaturated conditions.
The scope of application of the present invention:
The various soft rocks that can be used for running in the civil engineering work, the indoor or on-the-spot test of pan soil are applicable to the saturated measurement with unsaturation long-term creep compressive strength and deformation parameter of soft rock/pan soil under the no confining pressure.
Description of drawings:
Fig. 1 is a kind of lever soft rock/pan soil uniaxial compression deformation testing device structural representation.Wherein: water tank 1 is arranged, increased pressure frame 2, bolt 3, clock gauge 4, pressure chamber 5, water inlet pipe 6, water inlet pipe valve 7; Drainpipe 8, drainpipe valve 9, rotation axis 10, pressuring shaft 11, last drainpipe 12, last drainpipe valve 13, aqueduct 14; Top cap 15, upper dankness stone 16, sample 17, following permeable stone 18, base 19, water column 20; Aqueduct valve 21, following drainpipe valve 22, following drainpipe 23, pressure chamber's base 24, gim peg 25, counterweight 26.
Fig. 2 is the A-A right view of Fig. 1.Wherein have: rotation axis 10, gim peg 25, counterweight 26, big counterweight 27, the first suspension hooks 28, the second suspension hooks 29, pressurization lever 30.
Embodiment:
Embodiment: the test method that is used to measure soft rock/pan soil uniaxial compression distortion is following:
(1) the creep test method under the sample saturation conditions:
1. sample is installed: bleed sample 17 saturated earlier; And immersion upper dankness stone 16 and following permeable stone 18; Put into following permeable stone 18 on the base 19 then, the sample after saturated 17 is put rubber diaphragm be installed in down on the permeable stone 18, place upper dankness stone 16 on the sample 17; The top adds caping cap 15, and with rubber ring fixedly top cap 15 and base 19.
2. water-filling is prepared: pressure chamber 5 is installed on pressure chamber's base 24; Tight a bolt 3; With pressuring shaft 11 aligning top caps 15, close drainpipe valve 9, open aqueduct valve 21, go up drainpipe valve 13 and water inlet pipe valve 7; Pressure chamber 5 is full of water in water column 20, is full of half water, close water inlet pipe valve 7.
3. sample loads: open down drainpipe valve 22; With pressuring shaft 11 contact top caps 15, regulate clock gauge 4, place counterweight 26 on request; Carry out the uniaxial loading test; Close down drainpipe valve 22 after 24 hours, carry out the measurement of sample 17 volume change, measure the axial strain of sample 17 through clock gauge 4 through water column 20.
(2) the creep test method under the sample operate under unsaturated conditions:
1. sample is installed: will descend permeable stone 18 to put on the base 19, and natural sample 17 put rubber diaphragm be installed in down on the permeable stone 18, and place upper dankness stone 16 on the sample 17, the top adds caping cap 15, and with rubber ring fixedly top cap 15 and base 19.
2. water-filling is prepared: pressure chamber 5 is installed on pressure chamber's base 24; Tight a bolt 3; With pressuring shaft 11 aligning top caps 15, close drainpipe valve 9 and last drainpipe valve 13, open aqueduct valve 21 and water inlet pipe valve 7; Pressure chamber 5 is full of water in water column 20, is full of half water, close water inlet pipe valve 7.
3. sample loads: open down drainpipe valve 22; With pressuring shaft 11 contact top caps 15, regulate clock gauge 4, place counterweight 26 on request; Carry out the uniaxial loading test; Close down drainpipe valve 22 after 24 hours, carry out the measurement of sample 17 volume change, measure the axial strain of sample 17 through clock gauge 4 through water column 20.
Claims (1)
1. lever soft rock/pan soil uniaxial compression deformation testing device is characterized in that this device comprises water tank (1), increased pressure frame (2), bolt (3), clock gauge (4); Pressure chamber (5), water inlet pipe (6), water inlet pipe valve (7), drainpipe (8); Drainpipe valve (9), rotation axis (10), pressuring shaft (11), last drainpipe (12); Last drainpipe valve (13), aqueduct (14), top cap (15), upper dankness stone (16); Sample (17), following permeable stone (18), base (19), water column (20); Aqueduct valve (21), following drainpipe valve (22), following drainpipe (23), pressure chamber's base (24); Gim peg (25), counterweight (26), big counterweight (27), first suspension hook (28); Second suspension hook (29), pressurization lever (30), water tank (1) links to each other with pressure chamber's base (24) through water inlet pipe (6), and water inlet pipe (6) is through water inlet pipe valve (7) control; Drainpipe (8) is through drainpipe valve (9) control, and last drainpipe (12) is through last drainpipe valve (13) control, and following drainpipe (23) is through drainpipe valve (22) control down, and pressure chamber (5) link to each other with water column (20) through aqueduct (14); Aqueduct (14) is installed permeable stone (18) down through aqueduct valve (21) control above the base (19), the sample (17) that is with rubber diaphragm is installed above the following permeable stone (18), installs permeable stone (16) above the sample (17); Top cap (15) is installed above the upper dankness stone (16), and top cap (15) is aimed at pressuring shaft (11), and pressuring shaft (11) is passed pressure chamber (5) and is connected with increased pressure frame (2), and pressure chamber (5) are connected with pressure chamber's base (24) through bolt (3); Clock gauge (4) is installed in the pressure chamber (5), and increased pressure frame (2) is connected with pressure chamber's base (24) through gim peg (25), and gim peg (25), big counterweight (27) are connected through rotation axis (10), first suspension hook (28) with pressurization lever (30), and pressurization lever (30) is connected through second suspension hook (29) with counterweight (26).
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| CN2012101830053A CN102735551A (en) | 2012-06-06 | 2012-06-06 | Lever type soft rock/hard soil uniaxial compression deformation test apparatus |
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| CN2012101830053A CN102735551A (en) | 2012-06-06 | 2012-06-06 | Lever type soft rock/hard soil uniaxial compression deformation test apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990795A (en) * | 2015-07-13 | 2015-10-21 | 三峡大学 | A testing apparatus for rock and soil sample accelerated dry-wet cycle under load and test method thereof |
| CN106226174A (en) * | 2016-09-22 | 2016-12-14 | 青岛科技大学 | A kind of soft rock experiment creep measurement device |
| CN109186430A (en) * | 2018-07-25 | 2019-01-11 | 国营芜湖机械厂 | A kind of rubber deformation amount detecting device |
| CN109307628A (en) * | 2018-09-29 | 2019-02-05 | 中铁隧道局集团有限公司 | A kind of mud film shear strength test instrument and its method for measuring mud film shearing strength |
| CN109580914A (en) * | 2019-01-15 | 2019-04-05 | 三峡大学 | A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition |
| CN110018099A (en) * | 2019-04-10 | 2019-07-16 | 三峡大学 | A kind of soft rock saturation experimental rig and test method |
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| JP2005291862A (en) * | 2004-03-31 | 2005-10-20 | Tobishima Corp | Consolidation and water permeability test apparatus and test method |
| CN101509865A (en) * | 2009-03-25 | 2009-08-19 | 中国科学院地质与地球物理研究所 | Nonsaturated soil hydraulic parameter measuring device and measuring method |
| CN101526442A (en) * | 2007-08-20 | 2009-09-09 | 香港科技大学 | A high suction double-cell extractor |
| CN101915718A (en) * | 2010-08-20 | 2010-12-15 | 中国科学院武汉岩土力学研究所 | Multifunctional soil consolidation and penetration test device and test method thereof |
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2012
- 2012-06-06 CN CN2012101830053A patent/CN102735551A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005291862A (en) * | 2004-03-31 | 2005-10-20 | Tobishima Corp | Consolidation and water permeability test apparatus and test method |
| CN101526442A (en) * | 2007-08-20 | 2009-09-09 | 香港科技大学 | A high suction double-cell extractor |
| CN101509865A (en) * | 2009-03-25 | 2009-08-19 | 中国科学院地质与地球物理研究所 | Nonsaturated soil hydraulic parameter measuring device and measuring method |
| CN101915718A (en) * | 2010-08-20 | 2010-12-15 | 中国科学院武汉岩土力学研究所 | Multifunctional soil consolidation and penetration test device and test method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990795A (en) * | 2015-07-13 | 2015-10-21 | 三峡大学 | A testing apparatus for rock and soil sample accelerated dry-wet cycle under load and test method thereof |
| CN106226174A (en) * | 2016-09-22 | 2016-12-14 | 青岛科技大学 | A kind of soft rock experiment creep measurement device |
| CN109186430A (en) * | 2018-07-25 | 2019-01-11 | 国营芜湖机械厂 | A kind of rubber deformation amount detecting device |
| CN109307628A (en) * | 2018-09-29 | 2019-02-05 | 中铁隧道局集团有限公司 | A kind of mud film shear strength test instrument and its method for measuring mud film shearing strength |
| CN109580914A (en) * | 2019-01-15 | 2019-04-05 | 三峡大学 | A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition |
| CN109580914B (en) * | 2019-01-15 | 2021-11-02 | 三峡大学 | Rock argillization process simulation device and test method under dynamic water circulation and load conditions |
| CN110018099A (en) * | 2019-04-10 | 2019-07-16 | 三峡大学 | A kind of soft rock saturation experimental rig and test method |
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Application publication date: 20121017 |