CN102121887A - Improved type triaxial apparatus - Google Patents
Improved type triaxial apparatus Download PDFInfo
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- CN102121887A CN102121887A CN2010100032644A CN201010003264A CN102121887A CN 102121887 A CN102121887 A CN 102121887A CN 2010100032644 A CN2010100032644 A CN 2010100032644A CN 201010003264 A CN201010003264 A CN 201010003264A CN 102121887 A CN102121887 A CN 102121887A
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Abstract
The invention discloses an improved type triaxial apparatus, which is formed by additionally assembling and improving the traditional strain control triaxial apparatus and used for shearing tests of soil samples. The improved type triaxial apparatus is sequentially provided with axial pressurizing equipment, a lifting platform, a triaxial pressure chamber platform, a counter force platform and an upper cross beam from bottom to top, wherein the axial pressurizing equipment and the upper cross beam are mutually fixed through a support member; the triaxial pressure chamber platform is internally provided with a plurality of pressure chamber units; and the counter force platform is correspondingly provided with a plurality of sensors. The improved type triaxial apparatus can be used for loading a plurality of samples for one time and simultaneously testing the samples, thereby preventing the troubles of multiple tests and saving the test time; and besides, because the plurality of pressure chamber units share a pressure device and a data processing data and sufficiently utilize the axial pressurizing equipment, the lifting platform, the upper cross beam, and the like which are arranged in a principal machine of the traditional strain control triaxial apparatus, the improved type triaxial apparatus can also sufficiently utilize the space and the resources and reduce the cost.
Description
Technical field
The present invention relates to a kind of modified triaxial apparatus, relate in particular to the high modified triaxial apparatus of a kind of test efficiency.
Background technology
Triaxial apparatus is the equipment that carries out shear test, is used to measure shear strength of soils such as cohesive soil, silt and sandy soil, and national regulation substitutes direct shear test with triaxial shear test.
Traditional triaxial apparatus mainly comprises an axial pressure equipment, a lifting table, triaxial cell, a crossbeam.During test, a sample is put into the triaxial cell, lifting table moves up, and sample is subjected in the triaxial cell piston and base and exerts pressure, and produces deformation until destruction.
Because traditional triaxial apparatus can only be tested a sample at every turn, inefficiency is so triaxial apparatus is difficult to promote always.
Therefore, those skilled in the art is devoted to develop a kind of triaxial apparatus that can test a plurality of samples synchronously, makes them can a plurality of samples of synchronism detection.
Summary of the invention
Because the above-mentioned defective of prior art, technical matters to be solved by this invention provides the modified triaxial apparatus of a plurality of samples of a kind of synchronism detection, to improve test efficiency.
For achieving the above object, the invention provides a kind of modified triaxial apparatus, it utilizes existing strain control triaxial apparatus host reform to form.Be disposed with axial pressure equipment, lifting table, triaxial cell's platform, counter-force platform, entablature on to descending; Wherein, described axial pressure equipment and described entablature are fastened to each other by supporting member; Be provided with unit, a plurality of pressure chamber in the described triaxial cell platform; Correspondence is provided with the force transducer that quantity equates with unit, described pressure chamber on the described counter-force platform.
In better embodiment of the present invention, the unit, pressure chamber of modified triaxial apparatus comprises top cover at least, is used to place the base of sample, and pressure measuring cylinder; Described top cover, described base and described pressure measuring cylinder surround and form an enclosure space, at least 3 pull bars being located at described top cover and described base edge compress described top cover and described base, and a piston that acts on described sample wears from the outside of described top cover and enters described enclosure space.
Preferably, unit, above-mentioned pressure chamber is 4, is arranged at equably in the described triaxial cell platform.
Preferably, above-mentioned piston stretches out in the unit, described pressure chamber and is connected with described counter-force platform.
Preferably, unit, above-mentioned pressure chamber is provided with hole pressure sensor, body and becomes sensor, displacement transducer, and described force transducer, described hole pressure sensor, described body become sensor, described displacement transducer and all be connected in a data acquisition unit, the data transmission system data handling system of unifying successively.
Preferably, above-mentioned force transducer is arranged between described piston and the described counter-force platform.
Preferably, above-mentioned hole pressure sensor is arranged on the base of unit, described pressure chamber.
Preferably, above-mentioned body change sensor is connected with one change pipe.
Preferably, above-mentioned displacement transducer is located at described piston one side, is used to detect the displacement of described piston.
In modified triaxial apparatus of the present invention, be provided with unit, a plurality of pressure chamber, a plurality of samples of can once packing into, and simultaneously these samples are tested.Adopt triaxial apparatus of the present invention, can remove the repeatedly trouble of test from, and can save the time of test.In addition, because a plurality of pressure chambers units shared pressure apparatus and data processing equipment, and made full use of axial pressurized equipment, lifting table, entablature etc. in the existing strain control triaxial apparatus, and also can make full use of space and resource, reduce cost, advance the execution of national regulation.
Description of drawings
Fig. 1 is the front view of triaxial apparatus one specific embodiment of the present invention;
Fig. 2 is an A-A direction cut-open view among Fig. 1;
Fig. 3 is the front view of unit, pressure chamber in the triaxial apparatus of the present invention;
Fig. 4 is the vertical view of unit, pressure chamber in the triaxial apparatus of the present invention;
Fig. 5 is the fundamental diagram of triaxial apparatus of the present invention.
Embodiment
As shown in Figure 1, the modified triaxial apparatus to down and on be disposed with axial pressure equipment 22, lifting platform 1, triaxial cell's platform 23, counter-force platform 24, entablature 25.Axial pressure equipment 22 and entablature 25 are fastened to each other by supporting member 26.As shown in Figure 2, be provided with unit, 4 pressure chamber 2 in triaxial cell's platform 23 equably.
As shown in Figure 3, each unit, pressure chamber 2 comprises top cover 3, is used to place the base 4 of sample, pressure measuring cylinder 5.Top cover 3, base 4 and pressure measuring cylinder 5 surround and form an enclosure space 8.As Fig. 3, shown in Figure 4, the edge of top cover 3 and base 4 is compressed by 3 pull bars 6, is equipped with O type circle 7 between pressure measuring cylinder 5 and top cover 3, the base 4, makes enclosure space 8 keep sealing.Piston 9 passes top cover 3 from enclosure space 8 and is connected with counter-force platform 24.
Base 4 tops are provided with sample holder 10, and after placing sample 11 on the sample holder 10, sample 11 tops refill establishes sample cap 12.Between sample 11 and the base 4 and between sample 11 and the sample cap 12, all folder is established permeable stone 21.During test, piston 9 acts directly on the sample cap 12, makes sample 11 evenly stressed.
Sample cap 12 is provided with drainage joint 13 on, and flexible pipe 14 1 ends are fixed on the sample cap 12, and the other end of flexible pipe 14 fixes by drainage joint on another 15 and base 4.
Be connected with down drainage joint 17 on the base 4, in the following drainage joint 17 hole pressure sensor 18 be set, be used to measure down the hydraulic pressure in the drainage joint 17, and the force value that records is passed to information acquisition device 30.
Be arranged with piston bush 19 on the piston 9, this piston bush is provided with oiling and chews 20, can inject lubricating oil, strengthens the lubricant effect of piston 9.
Be provided with force transducer 31 between piston 9 and the counter-force platform 24, be used to measure the pressure between piston 9 and the counter-force platform 24, and the force value that records is passed to information acquisition device 30.Piston 9 is subjected to the thrust of lifting platform 1 to produce displacement, and a displacement transducer 33 is located at the side of piston 9, detects piston 9 displacements, and the shift value that records is passed to information acquisition device 30.
As shown in Figure 5, unit, pressure chamber 2 connects a pressure source 27, and pressure source 27 provides ambient pressure to unit, pressure chamber 2.Drainage joint 15 connects a back-pressure body and becomes pipe 28, and the back-pressure body becomes pipe 28 and links to each other with pressure source 27 simultaneously, and the back-pressure body becomes manages 28 and provide opposite pressure to sample 11.One becomes sensor 29 and is connected on the back-pressure body change pipe 28, and body change information is delivered on the information acquisition device 30.
During test, lifting platform 1 is subjected to axial pressure equipment 22 to drive rising, and the triaxial cell's platform 23 above promoting moves up simultaneously, and piston 9 tops are subjected to the restriction of its top counter-force platform 24, react on sample 11.Sample 11 produces deformation under the cramping of piston 9 and base 4, final destruction.Hole pressure sensor 18, force transducer 31, body become sensor 29, displacement transducer 33 with the data transfer that measures to information acquisition device 30, information acquisition device 30 is given computing machine 32 by wireless data transmission system 34 with data transfer, is calculated the shearing strength of sample 11 by computing machine 32.
Unit, 4 pressure chambers 2 connects respectively and its corresponding separately hole pressure sensor 18, force transducer 31, body change sensor 29, displacement transducer 33.18,4 force transducers of 4 hole pressure sensors, 31,4 individual 29,4 displacement transducers 33 of sensor that become are connected on the station information collector 30 jointly, information acquisition device 30 is given a computing machine 32 with the data transfer of each unit, pressure chamber 2, calculates the shearing strength that calculates each sample 11 respectively by computing machine 32.
Because triaxial cell's platform 23 comprises unit, 4 pressure chambers 2, when lifting platform 1 lifting once, once test is respectively finished in unit, 4 pressure chambers 2, has promptly finished 4 tests simultaneously, efficient reaches original 4 times.Except unit, pressure chamber 2 needs 4, most of device, all shared as axial pressure equipment 22, lifting platform 1, counter-force platform 24, entablature 25, information acquisition device 30, computing machine 32, pressure source 27, can make full use of space and resource, reduce cost.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (9)
1. modified triaxial apparatus, to down and on be disposed with axial pressure equipment, lifting table, triaxial cell's platform, counter-force platform, entablature; Wherein, described axial pressure equipment and described entablature are fastened to each other by supporting member; It is characterized in that: be provided with unit, a plurality of pressure chamber in the described triaxial cell platform; Described counter-force platform is provided with the force transducer that quantity equates with unit, described pressure chamber.
2. the triaxial apparatus described in claim 1, it is characterized in that: unit, described pressure chamber comprises top cover at least, is used to place the base of sample, and pressure measuring cylinder; Described top cover, described base and described pressure measuring cylinder surround and form an enclosure space, at least 3 pull bars being located at described top cover and described base edge compress described top cover and described base, and a piston that acts on described sample wears from the outside of described top cover and enters described enclosure space.
3. the triaxial apparatus described in claim 1, it is characterized in that: unit, described pressure chamber is 4, is arranged at equably in the described triaxial cell platform.
4. the triaxial apparatus described in claim 1 is characterized in that: described piston stretches out in the unit, described pressure chamber and is connected with described counter-force platform.
5. the triaxial apparatus described in claim 1 or 2 is characterized in that: establish hole pressure sensor, body change sensor, displacement transducer on the unit, described pressure chamber; Described force transducer, described hole pressure sensor, described body become sensor, described displacement transducer and all are connected in a data acquisition unit, the data transmission system data handling system of unifying successively.
6. the triaxial apparatus described in claim 5, it is characterized in that: described force transducer is arranged between described piston and the described counter-force platform.
7. the triaxial apparatus described in claim 5, it is characterized in that: described hole pressure sensor is arranged on the base of unit, described pressure chamber.
8. the triaxial apparatus described in claim 5 is characterized in that: described body becomes sensor and is connected with one and becomes pipe.
9. the triaxial apparatus described in claim 5, it is characterized in that: described displacement transducer is located at described piston one side, is used to detect the displacement of described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100032644A CN102121887A (en) | 2010-01-08 | 2010-01-08 | Improved type triaxial apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100032644A CN102121887A (en) | 2010-01-08 | 2010-01-08 | Improved type triaxial apparatus |
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| CN102121887A true CN102121887A (en) | 2011-07-13 |
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| CN2010100032644A Pending CN102121887A (en) | 2010-01-08 | 2010-01-08 | Improved type triaxial apparatus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262022A (en) * | 2011-07-14 | 2011-11-30 | 同济大学 | Test method for simulating shear resistant strength change of foundation pit precipitation soil |
| CN102854058A (en) * | 2012-10-11 | 2013-01-02 | 中山大学 | Triaxial multiplex and synchronous axial loading system for rock |
| CN102854057A (en) * | 2012-10-11 | 2013-01-02 | 中山大学 | Triaxial multiplex and synchronous loading system for rock |
| CN102998183A (en) * | 2012-10-10 | 2013-03-27 | 中山大学 | Three-axis multi-element synchronous rock confining pressure loading system |
| CN103134721A (en) * | 2013-02-07 | 2013-06-05 | 西安理工大学 | Dynamic triaxial testing machine servo-driven by electric cylinder |
| CN105203400A (en) * | 2015-10-16 | 2015-12-30 | 中国海洋石油总公司 | Triaxial creep testing device |
| CN106644754A (en) * | 2016-09-30 | 2017-05-10 | 重庆大学 | Direct shear test device using triaxial compression tester for loading and direct shear test method |
| CN109253925A (en) * | 2018-10-19 | 2019-01-22 | 北京交通大学 | A kind of three temperature control unsaturated soil triaxial test systems |
| CN110220793A (en) * | 2019-05-25 | 2019-09-10 | 温州大学 | Multistation rotates test triaxial apparatus and its experimental working technique automatically |
| CN111912760A (en) * | 2020-07-16 | 2020-11-10 | 中国水利水电科学研究院 | Test device and test method for simulating contact surface seepage coupling characteristics |
| CN115420615A (en) * | 2022-10-21 | 2022-12-02 | 苏州洽盈自动化科技有限公司 | Double-station isostatic pressing test machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1425516A1 (en) * | 1986-10-28 | 1988-09-23 | Челябинский Политехнический Институт Им.Ленинского Комсомола | Installation for testing ground samples for three-axes compression |
| CN2581970Y (en) * | 2002-12-02 | 2003-10-22 | 南京土壤仪器厂 | Strain controlled three-shaft apparatus shearing device |
-
2010
- 2010-01-08 CN CN2010100032644A patent/CN102121887A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1425516A1 (en) * | 1986-10-28 | 1988-09-23 | Челябинский Политехнический Институт Им.Ленинского Комсомола | Installation for testing ground samples for three-axes compression |
| CN2581970Y (en) * | 2002-12-02 | 2003-10-22 | 南京土壤仪器厂 | Strain controlled three-shaft apparatus shearing device |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262022A (en) * | 2011-07-14 | 2011-11-30 | 同济大学 | Test method for simulating shear resistant strength change of foundation pit precipitation soil |
| CN102998183A (en) * | 2012-10-10 | 2013-03-27 | 中山大学 | Three-axis multi-element synchronous rock confining pressure loading system |
| CN102998183B (en) * | 2012-10-10 | 2015-08-05 | 中山大学 | The polynary synchronous confined pressure loading system of a kind of rock three axle |
| CN102854058B (en) * | 2012-10-11 | 2015-11-25 | 中山大学 | The polynary synchronous axial loading system of a kind of rock three axle |
| CN102854058A (en) * | 2012-10-11 | 2013-01-02 | 中山大学 | Triaxial multiplex and synchronous axial loading system for rock |
| CN102854057A (en) * | 2012-10-11 | 2013-01-02 | 中山大学 | Triaxial multiplex and synchronous loading system for rock |
| CN102854057B (en) * | 2012-10-11 | 2015-11-25 | 中山大学 | The polynary synchronous loading system of a kind of rock three axle |
| CN103134721A (en) * | 2013-02-07 | 2013-06-05 | 西安理工大学 | Dynamic triaxial testing machine servo-driven by electric cylinder |
| CN103134721B (en) * | 2013-02-07 | 2015-04-22 | 西安理工大学 | Dynamic triaxial testing machine servo-driven by electric cylinder |
| CN105203400A (en) * | 2015-10-16 | 2015-12-30 | 中国海洋石油总公司 | Triaxial creep testing device |
| CN106644754A (en) * | 2016-09-30 | 2017-05-10 | 重庆大学 | Direct shear test device using triaxial compression tester for loading and direct shear test method |
| CN106644754B (en) * | 2016-09-30 | 2019-06-18 | 重庆大学 | A kind of direct shear test device and method loaded using new triaxial test equipment |
| CN109253925A (en) * | 2018-10-19 | 2019-01-22 | 北京交通大学 | A kind of three temperature control unsaturated soil triaxial test systems |
| CN110220793A (en) * | 2019-05-25 | 2019-09-10 | 温州大学 | Multistation rotates test triaxial apparatus and its experimental working technique automatically |
| CN111912760A (en) * | 2020-07-16 | 2020-11-10 | 中国水利水电科学研究院 | Test device and test method for simulating contact surface seepage coupling characteristics |
| CN115420615A (en) * | 2022-10-21 | 2022-12-02 | 苏州洽盈自动化科技有限公司 | Double-station isostatic pressing test machine |
| CN115420615B (en) * | 2022-10-21 | 2023-03-24 | 苏州洽盈自动化科技有限公司 | Double-station isostatic pressing test machine |
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Application publication date: 20110713 |