CN203259434U - Digital indoor resilience modulus measure apparatus - Google Patents
Digital indoor resilience modulus measure apparatus Download PDFInfo
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- CN203259434U CN203259434U CN 201320296150 CN201320296150U CN203259434U CN 203259434 U CN203259434 U CN 203259434U CN 201320296150 CN201320296150 CN 201320296150 CN 201320296150 U CN201320296150 U CN 201320296150U CN 203259434 U CN203259434 U CN 203259434U
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- bearing plate
- resilience
- indoor
- resilience modulus
- examination cylinder
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Abstract
The utility model relates to a digital indoor resilience modulus measure apparatus. A bottom laminate (1) and a middle laminate (3) are correspondingly arranged, a plurality of supports (2) are arranged between the bottom laminate (1) and the middle laminate (3), a test cylinder (14) is arranged in the central position of the middle laminate (3), a bearing plate (9) is arranged on the test cylinder (4), a pressure sensor (6) is arranged in the central position of the bearing plate (9), displacement sensors (5) are fixed at the left side and the right side of the baring plate (9), and the displacement sensors (5) and the pressure sensor (6) are respectively connected with a display controller (8); and a jack (7) is arranged below the test cylinder (4). The apparatus has the advantages of convenient operation, reading convenience, and suitableness for the determination of indoor geotechnical resilience modulus measure experiments.
Description
Technical field
The utility model relates to the measurement mechanism of the indoor modulus of resilience of a kind of digital display type.
Background technology
There is following shortcoming in existing geotechnological modulus of resilience indoor experimental apparatus: every first class pressure is by loading and the unloading counterweight is realized, process repeatedly, loaded down with trivial details; Measure the modulus of resilience by clock gauge, in measuring process, can surpass the clock gauge range in a lot of situations, cause test to carry out.
Summary of the invention
The utility model is regulated the loaded down with trivial details problems such as clock gauge position in order to solve repeatedly loading and unloading counterweight of existing experimental provision, and a kind of easy and simple to handle, measurement mechanism that is used for the indoor geotechnological modulus of resilience that precision is higher is provided.
The technical solution of the utility model: the measurement mechanism of the indoor modulus of resilience of a kind of digital display type, it comprises: bottom plate 1, support 2, la m 3, examination cylinder 4, displacement transducer 5, pressure transducer 6, lifting jack 7, display controller 8 and bearing plate 9, bottom plate 1 and la m 3 corresponding settings, between bottom plate 1 and la m 3, be provided with many supports 2, the center position of la m 3 is provided with examination cylinder 4, the top of examination cylinder 4 is placed with bearing plate 9, the center position of bearing plate 9 is provided with pressure transducer 6, the left and right sides of bearing plate 9 is fixed displacement sensor 5 respectively, displacement transducer 5, pressure transducer 6 is connected with display controller 8 respectively; The below of examination cylinder 4 is provided with lifting jack 7.
The utility model compared with prior art has following beneficial effect: the utility model is easy to operate, and convenient reading is applicable to the mensuration of indoor geotechnological modulus of resilience experiment.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The measurement mechanism of the indoor modulus of resilience of a kind of digital display type, it comprises: bottom plate 1, support 2, la m 3, examination cylinder 4, displacement transducer 5, pressure transducer 6, lifting jack 7, display controller 8 and bearing plate 9, bottom plate 1 and la m 3 corresponding settings, between bottom plate 1 and la m 3, be provided with many supports 2, the center position of la m 3 is provided with examination cylinder 4, the top of examination cylinder 4 is placed with bearing plate 9, the center position of bearing plate 9 is provided with pressure transducer 6, the left and right sides of bearing plate 9 is fixed displacement sensor 5 respectively, displacement transducer 5, pressure transducer 6 is connected with display controller 8 respectively; The below of examination cylinder 4 is provided with lifting jack 7.
Be described in detail below in conjunction with the operating process of instantiation to measurement mechanism of the present utility model:
Example 1:
In shop experiment, measure the modulus of resilience value of test specimen.As required, operate according to following steps:
1, test specimen is placed on the la m together with the examination cylinder;
2, bearing plate is placed on the upper surface of test specimen;
3, bearing plate is contacted with the transmission rod of pressure transducer, the adjusted position displacement sensor places it on the dial framework of bearing plate;
4, adjust the reading of display controller, make the numerical value of displacement transducer be shown as zero;
5, utilize hydraulic jack to realize loading and the unloading of pressure;
6, will be scheduled to maximum unit pressure and be divided into 4 ~ 6 parts, as the pressure of every grade of loading.Every grade of load time, record displacement and pressure reading unloaded simultaneously when being 1min, allowed test specimen recover distortion.During unloading 1min, again record displacement and pressure reading, apply simultaneously the next stage load.Carry out step by step loading and unloading, and the record reading, until the afterbody load.
7, the resilience under every grade of load of calculating: L=loads reading-unloading reading, utilizes formula to try to achieve modulus of resilience value:
, wherein,
E-modulus of resilience (kPa);
D-loading plate diameter (cm);
Example 2:
In shop experiment, need to measure the test of California bearing ratio, as required, operate according to following steps:
1, test specimen is placed on the la m together with the examination cylinder;
2, bearing plate is placed on the upper surface of test specimen;
3, by lifting jack bearing plate is contacted with the transmission rod of pressure transducer, the adjusted position displacement sensor places it on the dial framework of bearing plate;
4, adjust the reading of display controller, make the numerical value of displacement transducer be shown as zero;
5, utilize hydraulic jack to realize the loading of pressure;
6, loading makes lifting jack with the speed rising of 1 ~ 1.25mm/min, and record displacement display position value of moving and force value corresponding to shift value notice that measuring the injection amount is that 250 * 10-2mm and injection amount are the force value of 500 * 10-2mm, can have the reading more than 5;
6, with unit pressure (
) be horizontal ordinate, the injection amount (
) be ordinate, draw
Relation curve. wherein, the unit pressure on p-loading plate (kPa);
Unit pressure and the bearing ratio that is compared to material (CBR) of normal pressure, that is: CBR=when 7, adopting the injection amount to be 2.5mm
, the bearing ratio when calculating simultaneously the injection amount and being 5mm: CBR=
, the bearing ratio of the bearing ratio when if the injection amount is 5mm during greater than 2.5mm, then test should be reformed.Still like this such as the result, the bearing ratio when then adopting 5mm.
Claims (1)
1. the measurement mechanism of the indoor modulus of resilience of digital display type, it comprises: bottom plate (1), support (2), la m (3), examination cylinder (4), displacement transducer (5), pressure transducer (6), lifting jack (7), display controller (8) and bearing plate (9), it is characterized in that: bottom plate (1) and the corresponding setting of la m (3), between bottom plate (1) and la m (3), be provided with many supports (2), the center position of la m (3) is provided with examination cylinder (4), the top of examination cylinder (4) is placed with bearing plate (9), the center position of bearing plate (9) is provided with pressure transducer (6), the left and right sides of bearing plate (9) is fixed displacement sensor (5) respectively, displacement transducer (5), pressure transducer (6) is connected with display controller (8) respectively; The below of examination cylinder (4) is provided with lifting jack (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320296150 CN203259434U (en) | 2013-05-28 | 2013-05-28 | Digital indoor resilience modulus measure apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320296150 CN203259434U (en) | 2013-05-28 | 2013-05-28 | Digital indoor resilience modulus measure apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203259434U true CN203259434U (en) | 2013-10-30 |
Family
ID=49471986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320296150 Expired - Fee Related CN203259434U (en) | 2013-05-28 | 2013-05-28 | Digital indoor resilience modulus measure apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203259434U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259026A (en) * | 2015-10-21 | 2016-01-20 | 广东省建筑材料研究院 | Rebound value testing device |
| CN106198249A (en) * | 2016-06-23 | 2016-12-07 | 大连盛辉钛业有限公司 | Test the method and system of medical TC4 titanium alloy ballistic properties |
| CN109900915A (en) * | 2019-03-18 | 2019-06-18 | 山西大学 | A kind of full-automatic chemical Polluted Soil modulus of resilience tester |
| CN110749518A (en) * | 2019-10-23 | 2020-02-04 | 长沙理工大学 | In-situ test system and method for roadbed dynamic resilience modulus |
-
2013
- 2013-05-28 CN CN 201320296150 patent/CN203259434U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259026A (en) * | 2015-10-21 | 2016-01-20 | 广东省建筑材料研究院 | Rebound value testing device |
| CN106198249A (en) * | 2016-06-23 | 2016-12-07 | 大连盛辉钛业有限公司 | Test the method and system of medical TC4 titanium alloy ballistic properties |
| CN109900915A (en) * | 2019-03-18 | 2019-06-18 | 山西大学 | A kind of full-automatic chemical Polluted Soil modulus of resilience tester |
| CN110749518A (en) * | 2019-10-23 | 2020-02-04 | 长沙理工大学 | In-situ test system and method for roadbed dynamic resilience modulus |
| CN110749518B (en) * | 2019-10-23 | 2021-04-27 | 长沙理工大学 | In-situ test system and method for roadbed dynamic resilience modulus |
| WO2021077899A1 (en) * | 2019-10-23 | 2021-04-29 | 长沙理工大学 | In situ test system and method for dynamic resilience modulus of roadbed |
| US11913186B2 (en) | 2019-10-23 | 2024-02-27 | Changsha University Of Science And Technology | In-situ test system and method for subgrade dynamic resilient modulus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20190528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |