CN203287250U - Tensile test device for sock-soil - Google Patents

Tensile test device for sock-soil Download PDF

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Publication number
CN203287250U
CN203287250U CN201320248708XU CN201320248708U CN203287250U CN 203287250 U CN203287250 U CN 203287250U CN 201320248708X U CN201320248708X U CN 201320248708XU CN 201320248708 U CN201320248708 U CN 201320248708U CN 203287250 U CN203287250 U CN 203287250U
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CN
China
Prior art keywords
box
sample
nigration
tensile test
action plate
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Withdrawn - After Issue
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CN201320248708XU
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Chinese (zh)
Inventor
钟世英
王贤能
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Shenzhen Gongkan Geotechnical Engineering Co Ltd
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Shenzhen Gongkan Geotechnical Engineering Co Ltd
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Priority to CN201320248708XU priority Critical patent/CN203287250U/en
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Abstract

The utility model relates to the field of performance testing of rock-soil, and provides a tensile test device for rock-soil. The tensile test device for the rock-soil is used for testing the tensile strength of an I-type sample, and comprises a base, wherein a fixed testing box and a mobile testing box which are used for respectively clamping the two end parts of the sample are arranged on the base side by side; the fixed testing box is provided with a first action plate enabling the middle section of the sample to extend out; the mobile testing box is provided with a second action plate enabling the middle section of the sample to extend out; the first action plate and the second action plate are oppositely arranged; the mobile testing box is connected with a pushing device used for driving the mobile testing box to move in the direction far away from the fixed testing box. According to the utility model, the I-type sample is clamped by the two testing boxes, and under the action of the pushing device, forces are generated on the two end parts of the sample by the two testing boxes, and the middle section of the sample is further deformed, so that the tensile performance of the sample can be tested conveniently, and the device can be used for testing a sample in a large size, can reduce the influence caused by size effect and boundary effect, and ensures accuracy in testing of the tensile performance.

Description

Ground tensile test device
Technical field
The utility model relates to the ground performance detection apparatus, relates in particular to a kind of ground tensile test device.
Background technology
The tensile strength of Rock And Soil and Rock And Soil and structures surface of contact is destroyed significant to the drawing crack of Geotechnical Engineering.Experimental test for tensile strength often adopts tensile strength test instrument or universal testing machine at present, but rock-soil material has the discrete material characteristic, the aspects such as clamping and load apply are cumbersome taking a sample, can't adopt existing testing equipment tested for tensile strength, and existing testing equipment requires the size of sample less, and the Rock And Soil of reduced size size effect and boundary effect be on its impact obviously when experimental test.
The utility model content
The purpose of this utility model is to overcome the defect of prior art, and a kind of test unit of testing the ground tensile property is provided.
for solving the problems of the technologies described above, the technical solution of the utility model is: a kind of ground tensile test device is provided, be used for test I shape sample tensile strength, comprise pedestal, be provided with side by side on described pedestal for blocking and establish fixation test box and the nigration box at described sample both ends respectively, described fixation test box has the first action plate that described sample interlude is stretched out, described nigration box has the second action plate that described sample interlude is stretched out, and described the first action plate and described the second action plate are oppositely arranged, described nigration box is connected with the thrust unit that moves away from described fixation test box direction be used to ordering about it.
Further, comprise and connect described fixation test box and described nigration box and be located between the two measurement mechanism.
Further, comprise that one is controlled and data acquisition system (DAS), described system is electrically connected to described thrust unit and described measurement mechanism.
Further, also be provided with the support slide plate on described pedestal, described sample interlude is positioned on described support slide plate, and described support slide plate comprises the stator that is connected with described fixation test box and the moving sheet that is connected with described nigration box, and described stator and described moving sheet are superimposed.
Further, also comprise be used to the drawing crack box of putting described sample interlude, described drawing crack box has the first link and synchronization-moving the second link of described nigration box that is fixedly connected with described fixation test box, and described drawing crack box is positioned on described support slide plate.
Particularly, the upper end of described the first action plate has to be convenient to described sample end and to be placed in the first breach in described fixation test box, described the second action plate upper end also has to be convenient to described sample the other end and to be placed in the second breach in described nigration box, described the first action plate and described the second action plate all are fixed with two cover plates for described the first breach of cap seal and the second opening, and each described cover plate is fixedly connected with two links of described drawing crack box respectively.
Further, described cover plate is provided be used to the lifting jack of supporting described sample end.
Described drawing crack box is provided with and watches window particularly.
Further, described pedestal is provided with slideway, and described nigration box is slidedly arranged in described slideway.
Particularly, described thrust unit is the constant load instrument, and two of described constant load instrument loads axle and all supports described nigration box.
The utlity model has following technique effect:
the utility model can block the both ends of establishing the I shape sample easily by fixation test box and nigration box, formed the clamping to sample, thereby the interlude that makes sample namely the drawing crack section of sample just between two test boxs, under the effect of thrust unit, the nigration box has an action away from the fixation test box, the second action plate of the first action plate of fixation test box and nigration box also starts to support the both ends of sample like this, when the acting force of thrust unit reaches the maximum pull of sample, the sample interlude starts to occur the drawing crack vestige, the nigration box also starts slow movement, thereby just can test out the tensile property of sample.This device uses the I shape sample dexterously, form clamping to it by two test boxs, and then realize follow-up tension test, and this device can the larger sample of suitable dimensions, reduce the impact of size effect and boundary effect, thereby can more accurately measure the tensile property of ground sample.
Description of drawings
Fig. 1 is the utility model preferred embodiment side view;
Fig. 2 is sample front view in the utility model embodiment;
Fig. 3 is the utility model embodiment vertical view;
Fig. 4 is the utility model embodiment drawing crack box and cover plate connection diagram.
Embodiment
, in order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
referring to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of ground tensile test device, be mainly used in testing the tensile property of I shape sample 1, comprise a pedestal 2, be provided with fixation test box 3 and nigration box 4 on pedestal 2, two test boxs are arranged side by side and can block respectively two ends 11 of establishing sample, fixation test box 3 has first action plate 31, sample interlude 12 can be stretched out by this plate, the box of nigration simultaneously 4 has second action plate 41, sample interlude 12 also can be stretched out by this plate, certain two plates are oppositely arranged, like this when sample 1 is placed in this device, its both ends 11 are fastened on respectively in two test boxs, sample interlude 12 is just between two test boxs, nigration box 4 also is connected with a thrust unit 5 further, this thrust unit 5 can force nigration box 4 away from fixation test box 3.before this device to test, first ground is made the sample 1 of I shape, again this sample 1 is placed in this device, sample 1 both ends 11 lay respectively in two test boxs, sample interlude 12 is between two test boxs, can form clamping to sample 1 well by two test boxs like this, and sample interlude 12 than detailed rules and regulations as the drawing crack section, under the effect of thrust unit 5, nigration box 4 has the trend away from fixation test box 3, thereby make the first action plate 31 and the second action plate 41 produce acting force to the both ends 11 of sample 1 respectively, and after the acting force of thrust unit 5 reaches the maximum pull of sample, namely deformation appears in sample interlude 12, after nigration box 4 starts slowly to move, it is mobile that thrust unit 5 keeps this acting force to force nigration box 4 to continue, and then can test out the tensile property of sample 1.Can realize clamping to ground class sample 1 by this device, and then measure easily the tensile property of ground, and this device can larger sample 1 tensile property of test size, can effectively reduce the impact that size effect and boundary effect are brought, the test of tensile property is more accurate.Certainly fixation test box 3 and nigration box 4 all can be opened, and the both ends 11 of sample 1 can freely be put in the inner.
, referring to Fig. 2 and Fig. 3, be provided with measurement mechanism 6 between fixation test box 3 and nigration box 4 further, this measurement mechanism 6 is connected with two test boxs respectively.Can measure in real time the deformation quantity of sample 1 by measurement mechanism 6, can resolutely know the correlation test data of understanding whole test process, be beneficial to the analytical test result.Certainly can also set up a control and data acquisition system (DAS) 7 in whole device, this system 7 is electrically connected to thrust unit 5 and measurement mechanism 6 respectively simultaneously.In process of the test, system 7 can be controlled the amount of force of thrust unit 5, before the maximum pull that does not reach sample 1, accurately control the increment of thrust unit 5 acting forces, after reaching maximum pull, control again thrust unit 5 acting forces and keep constant, until test process finishes, whole process does not need manually-operated very convenient substantially; Further, in test process, the related data that system 7 can Real-time Collection measurement mechanism 6 and corresponding thrust unit 5 amount of force, and then analyze test findings.
Referring to Fig. 1-Fig. 3, further, arrange one and support slide plate 21 on pedestal 2, sample interlude 12 is positioned at and supports on slide plate 21.Because sample 1 size is larger, if all by two test boxs, supported, the friction force that produces when drawing crack is larger, thereby affect test findings, and under the support of supporting slide plate 21, can reduce the stressed of each point, and support slide plate 21 and can accomplish higher smoothness, effectively reduce friction force, improve the accuracy of test figure.Usually, support slide plate 21 and also be divided into stator 211 and moving sheet 212 two parts, stator 211 is connected with fixation test box 3, moving sheet 212 is connected with nigration box 4, and these two parts are superimposed together, and reach the maximum pull of sample 1 at thrust unit 5 after, nigration box 4 is after starting movement, moving sheet 212 moves together with nigration box 4, closed state is removed gradually.
further referring to Fig. 1, Fig. 2 and Fig. 4, also be provided with a drawing crack box 8 between two test boxs, drawing crack box 8 is positioned at and supports on slide plate 21, and when test, sample interlude 12 just is positioned at drawing crack box 8, the box of drawing crack simultaneously 8 also has first link 81 that is fixedly connected with fixation test box 3 and second link 82 that is fixedly connected with nigration box 4, and this second link 82 can with nigration box 4 synchronizing movings, that is to say that drawing crack box 8 can be divided into two parts, wherein a part is fixedly connected with fixation test box 3, a part is fixedly connected with nigration box 4 in addition, these two parts do not connect simultaneously, or say that being misplaced appears in these two parts, wherein a part stretches into an other part and forms stretching structure.Because the sample in the present embodiment 1 is ground, there will be unavoidably the ground particle in tensile test, cause harmful effect, drawing crack box 4 can effectively be avoided this impact, and the ground particle of generation substantially all is positioned at device.
further, be provided with first a breach (not shown) in the upper end of the first action plate 31, and be provided with second a breach (not shown) in the upper end of the second action plate 41, like this when placing sample 1, can be inserted by the first breach and the second breach, some unnecessary troubles have been avoided, and after sample 1 placement is completed, be installed with respectively two cover plates 9 on the first action plate 31 and the second action plate 41, cover plate 9 is divided into two groups, and wherein one group just cap seal the first breach is simultaneously fixing with the first link 81, and other one group of cap seal second breach and connect the second link 82, connect fixation test box 3 and the first link 81 as a whole by cover plate 9 like this, the box of nigration simultaneously 4 and the second link 82 are also as a whole.Usually in the inboard of cover plate 9, also be provided with the lifting jack (not shown); lifting jack can be supported sample 1 end 11; the application of force better at the trial; two test boxs are not directly to sample 1 end 11 application of forces; can play a protective role to it; and lifting jack can regulate, and can conveniently to the sample 1 of various sizes, support the application of force.Certainly all can be made as bolt connection, easy disassembly for being connected between each cover plate 9 and test box or drawing crack box 8.Particularly, can arrange one on drawing crack box 8 and watch window 83, during test, can be from watching the window 83 whole drawing crack processes of Real Time Observation.
Further, also be provided with a slideway 22 on pedestal 2, nigration box 4 is slidably installed in slideway 22, like this after thrust unit 5 effects, nigration box 4 is in the interior movement of slideway 22, and the friction force in the time of can greatly reducing it and move improves the accuracy of test figure.
Referring to Fig. 3, thrust unit 5 can be made as the constant load instrument particularly, and its two loadings axle 51 is all supported the nigration box.It is more accurate that the constant load instrument loads, and load is stable.
The foregoing is only the utility model preferred embodiment; its structure is not limited to the above-mentioned shape of enumerating; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. ground tensile test device, be used for test I shape sample tensile strength, it is characterized in that: comprise pedestal, be provided with side by side on described pedestal for blocking and establish fixation test box and the nigration box at described sample both ends respectively, described fixation test box has the first action plate that described sample interlude is stretched out, described nigration box has the second action plate that described sample interlude is stretched out, and described the first action plate and described the second action plate are oppositely arranged, described nigration box is connected with the thrust unit that moves away from described fixation test box direction be used to ordering about it.
2. ground tensile test device as claimed in claim 1 is characterized in that: comprise and connect described fixation test box and described nigration box and be located between the two measurement mechanism.
3. ground tensile test device as claimed in claim 2, is characterized in that: comprise that one is controlled and data acquisition system (DAS), the described system described thrust unit of electrical connection and described measurement mechanism.
4. ground tensile test device as claimed in claim 3, it is characterized in that: also be provided with the support slide plate on described pedestal, described sample interlude is positioned on described support slide plate, described support slide plate comprises the stator that is connected with described fixation test box and the moving sheet that is connected with described nigration box, and described stator and described moving sheet are superimposed.
5. ground tensile test device as claimed in claim 4, it is characterized in that: also comprise be used to the drawing crack box of putting described sample interlude, described drawing crack box has the first link and synchronization-moving the second link of described nigration box that is fixedly connected with described fixation test box, and described drawing crack box is positioned on described support slide plate.
6. ground tensile test device as claimed in claim 5, it is characterized in that: the upper end of described the first action plate has to be convenient to described sample end and to be placed in the first breach in described fixation test box, described the second action plate upper end also has to be convenient to described sample the other end and to be placed in the second breach in described nigration box, described the first action plate and described the second action plate all are fixed with two cover plates for described the first breach of cap seal and the second opening, and each described cover plate is fixedly connected with two links of described drawing crack box respectively.
7. ground tensile test device as claimed in claim 6, it is characterized in that: described cover plate is provided be used to the lifting jack of supporting described sample end.
8. ground tensile test device as claimed in claim 5, it is characterized in that: described drawing crack box is provided with watches window.
9. as the described ground tensile test of claim 1-8 any one device, it is characterized in that: described pedestal is provided with slideway, and described nigration box is slidedly arranged in described slideway.
10. as the described ground tensile test of claim 1-8 any one device, it is characterized in that: described thrust unit is the constant load instrument, and two of described constant load instrument loads axle and all supports described nigration box.
CN201320248708XU 2013-05-09 2013-05-09 Tensile test device for sock-soil Withdrawn - After Issue CN203287250U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320248708XU CN203287250U (en) 2013-05-09 2013-05-09 Tensile test device for sock-soil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320248708XU CN203287250U (en) 2013-05-09 2013-05-09 Tensile test device for sock-soil

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CN201320248708XU Withdrawn - After Issue CN203287250U (en) 2013-05-09 2013-05-09 Tensile test device for sock-soil

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142267A (en) * 2013-05-09 2014-11-12 深圳市工勘岩土工程有限公司 Rock soil tensile test apparatus
CN106053214A (en) * 2016-07-28 2016-10-26 西安工业大学 Testing apparatus for research of imposed load of bed separation to anchor pole and manufacturing method
CN106442121A (en) * 2016-06-29 2017-02-22 西安工业大学 Test device for studying load imposed on anchor rods by separation layer and making method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142267A (en) * 2013-05-09 2014-11-12 深圳市工勘岩土工程有限公司 Rock soil tensile test apparatus
CN106442121A (en) * 2016-06-29 2017-02-22 西安工业大学 Test device for studying load imposed on anchor rods by separation layer and making method
CN106442121B (en) * 2016-06-29 2019-07-19 西安工业大学 A kind of research absciss layer is to the experimental rig and production method of bolt action load
CN106053214A (en) * 2016-07-28 2016-10-26 西安工业大学 Testing apparatus for research of imposed load of bed separation to anchor pole and manufacturing method

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20131113

Effective date of abandoning: 20170825

AV01 Patent right actively abandoned