CN203924148U - Multi-functional dynamic deformation module detector - Google Patents
Multi-functional dynamic deformation module detector Download PDFInfo
- Publication number
- CN203924148U CN203924148U CN201420356792.1U CN201420356792U CN203924148U CN 203924148 U CN203924148 U CN 203924148U CN 201420356792 U CN201420356792 U CN 201420356792U CN 203924148 U CN203924148 U CN 203924148U
- Authority
- CN
- China
- Prior art keywords
- steel cage
- load steel
- load
- dynamic deformation
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 238000012360 testing method Methods 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 230000001133 acceleration Effects 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 9
- 239000002689 soil Substances 0.000 description 15
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000005056 compaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of multi-functional dynamic deformation module detector, comprise charger, bogey; Charger comprises guiding steel cage, damping unit, the guide rod connecting successively from bottom to top, and on described guide rod, cover drops hammer, and the top of described guide rod is provided with the hook that drops hammer; Bogey comprises the first load steel cage and the second load steel cage, the bottom of the first load steel cage is connected with injection bar, injection bar is provided with handle, the bottom of the second load steel cage is connected with circular loaded plate, and the profile on the first load steel cage and the second load steel cage top adapts with the interior hole shape of guiding steel cage bottom; In the first load steel cage and the second load steel cage, be respectively equipped with acceleration transducer, settlement device and global positioning satellite gps receiver.Can automatically detect dynamic deformation modulus vd and dynamic bearing ratio CBR, and detection speed is fast, testing result is accurate.
Description
Technical field
The utility model relates to a kind of equipment that Subgrade Compaction Quality and packing quality are used that detects, and relates in particular to a kind of multi-functional dynamic deformation module detector.
Background technology
Dynamic deformation module detector is a kind of instrument detecting for roadbed filling compaction quality, is used for detecting mechanical index-dynamic deformation modulus vd value of Roadbed Soil.This tester is by drop weight test and depression, to measure to measure the index Evd value of reflection soil body dynamic characteristic, and the roadbed or the ground that are applicable to railway, highway, airport, urban traffic, harbour, harbour and industry and civilian construction fill compaction quality detection.
In prior art, the geographical position such as the mileage of dynamic planar loading detector Site Detection point, absolute altitude, are by manual measurement and record, waste time and energy, and are affected by human factors greatly, are difficult to guarantee that it is objective, true; The sensor of measuring for depression and data processing equipment be without self-checking function, can not determine sensor or the data of data processing equipment test whether correct.
For roadbed filling quality examination, conventionally adopt Califonia Bearing Ratio Test, bearing ratio is the intensity index of reflection subgrade soils and bedding material.Bearing ratio is called for short CBR value, while referring in the standard-sized injection bar injection test specimen of employing 2.5mm or 5.0mm, and the ratio of standard intensity of load during required intensity of load injection amount identical with standard rubble.Califonia Bearing Ratio Test comprises indoor and on-the-spot Califonia Bearing Ratio Test.In prior art, for Califonia Bearing Ratio Test, be: actuating motor or shake penetrometer crank, apply axial compression, make injection bar with the speed pressing in sample of (1～1.25) mm/min, record dynamometer reading and corresponding injection amount, and the reading should make injection amount reach 2.5mm time is no less than 5 groups, tests to injection amount and stop during for (10～12.5) mm; Take intensity of load as abscissa, and injection amount is ordinate, draws intensity of load and injection magnitude relation curve, calculates bearing ratio.Califonia Bearing Ratio Test method of the prior art needs counterforce device, and detection speed is slow.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly can automatically detects dynamic deformation modulus vd and dynamic bearing ratio CBR, and detection speed is fast, testing result multi-functional dynamic deformation module detector accurately.
The purpose of this utility model is achieved through the following technical solutions:
Multi-functional dynamic deformation module detector of the present utility model, comprises charger, bogey;
Described charger comprises guiding steel cage, damping unit, the guide rod connecting successively from bottom to top, and on described guide rod, cover drops hammer, and the top of described guide rod is provided with the hook that drops hammer;
Described bogey comprises the first load steel cage and the second load steel cage, the bottom of described the first load steel cage is connected with injection bar, described injection bar is provided with handle, the bottom of described the second load steel cage is connected with circular loaded plate, and the interior hole shape of the profile on described the first load steel cage and the second load steel cage top and described guiding steel cage bottom adapts;
In described the first load steel cage and the second load steel cage, be respectively equipped with depression testing arrangement.
The technical scheme being provided by above-mentioned the utility model can find out, the multi-functional dynamic deformation module detector that the utility model embodiment provides, comprises charger, bogey; Charger comprises guiding steel cage, damping unit, the guide rod connecting successively from bottom to top, and on described guide rod, cover drops hammer, and the top of described guide rod is provided with the hook that drops hammer; Bogey comprises the first load steel cage and the second load steel cage, the bottom of described the first load steel cage is connected with injection bar, described injection bar is provided with handle, the bottom of described the second load steel cage is connected with circular loaded plate, and the interior hole shape of the profile on described the first load steel cage and the second load steel cage top and described guiding steel cage bottom adapts; In the first load steel cage and the second load steel cage, be respectively equipped with depression testing arrangement, can automatically detect dynamic deformation modulus vd and dynamic bearing ratio CBR, and detection speed is fast, testing result is accurate.
Accompanying drawing explanation
The structural representation of the multi-functional dynamic deformation module detector that Fig. 1 provides for the utility model embodiment.
Fig. 2 is the structural representation of the second load steel cage in the utility model embodiment.
The 1-hook that drops hammer, 2-drops hammer, 3-guide rod, 4-damping unit, the 5-steel cage that leads, 6-load steel cage, 7-injection bar handle, 8-injection bar, 9-load piece, the circular loaded plate of 10-, 11-acceleration transducer, 12-settlement device and gps receiver.
The specific embodiment
To be described in further detail the utility model embodiment below.
Multi-functional dynamic deformation module detector of the present utility model, preferably the specific embodiment is as shown in Figure 1 and Figure 2 for it:
Comprise charger, bogey;
Described charger comprises guiding steel cage, damping unit, the guide rod connecting successively from bottom to top, and on described guide rod, cover drops hammer, and the top of described guide rod is provided with the hook that drops hammer;
Described bogey comprises the first load steel cage and the second load steel cage, the bottom of described the first load steel cage is connected with injection bar, described injection bar is provided with handle, the bottom of described the second load steel cage is connected with circular loaded plate, and the interior hole shape of the profile on described the first load steel cage and the second load steel cage top and described guiding steel cage bottom adapts;
In described the first load steel cage and the second load steel cage, be respectively equipped with depression testing arrangement.
Described depression testing arrangement comprises acceleration transducer and the settlement device being connected, described settlement device inside is provided with global positioning satellite gps receiver, and described global positioning satellite gps receiver is connected with described settlement device by wire.
Described depression testing arrangement is provided with the self-test unit of acceleration transducer and settlement device test data.
Bearing is equipped with in the described inside of dropping hammer.
Multi-functional dynamic deformation module detector of the present utility model, can detect dynamic deformation modulus vd and dynamic bearing ratio CBR automatically, and detection speed is fast, testing result is accurate.
When the utility model carries out dynamic deformation modulus vd test, charger is placed on loaded plate load steel cage, allow the dropping hammer from certain altitude free-falling of charger, impact bogey, under impact force action, loaded plate produces depression, and settlement device gathers vibration acceleration signal, calculate depression and dynamic deformation modulus vd value, show, print, store result of the test and testing site mileage and absolute altitude.While carrying out dynamic bearing ratio CBR test, charger is placed on to loaded plate to be connected with on injection bar load steel cage, allow the dropping hammer from certain altitude free-falling of charger, impact bogey, injection bar on bogey inserts the soil body, and draws the insertion depth of described injection bar and the dependency relation between bearing ratio by contrast test; Then according to the dependency relation between the insertion depth of described injection bar and insertion depth and bearing ratio, draw the bearing ratio of the soil body; The insertion depth of injection bar and CBR are worth calculating all by settlement device, to realize.The self check of the dynamic planar loading detector of many utility model function is to have the acceleration transducer detection acceleration of gravity of circular loaded plate load steel cage inside to realize by being located at bottom.
The operating principle of settlement device is:
After charger impacts bogey, the depression vibration signal that the soil body produces is input to A/D converter (A/D) through acceleration transducer, by data processor, carry out data processing again, finally by liquid crystal display (LCD), shown and printer printing test result.Electronics analyzer also comprises printer interface, PC communication interface and acceleration transducer interface etc.Guiding steel cage and load steel cage play guiding and stable impact power.
The impact force of charger is controlled by the drop height dropping hammer and damping unit, impact force road bed design maximum dynamic stress 0.1MPa when its size and delay time will meet train high-speed cruising, roadbed being produced.
Dynamic deformation modulus vd test philosophy is:
Dropping hammer of charger freely falls from certain altitude, and dynamic load effect during simulation train high-speed cruising, road bed being produced is impacted road bed, under the identical condition of impact energy, and the vertical deformation of test road bed; According to dull and stereotyped pressure formula, calculate the dynamic deformation modulus vd value of roadbed.
Dynamic bearing ratio test philosophy is:
Dropping hammer of charger freely falls from certain altitude, through damping unit and guiding steel cage, bogey is impacted to loading, soil sample in the injection pole pair bearing ratio cylinder of bogey produces moment impact, make soil sample produce depression, this depression value is the vertical deformation value that soil sample produces, and by acceleration transducer and settlement device, is recorded.This sink deformation has reflected the drag performance of the soil body.
During concrete operations, there are 2 kinds of situations:
(1) laboratory test: the soil sample preparing is positioned in bearing ratio cylinder and is carried out after compaction test, soil sample in smooth good bearing ratio cylinder, bogey is positioned in the soil sample in bearing ratio cylinder and guarantees the vertical of injection bar, around injection bar, place load piece, charger is positioned over to bogey top and keeps it vertical, drop hammer lifting is tangled to hooking device, then make to drop hammer and break off relations and freely fall and impact.
(2) field trial: smooth good roadbed on-the-spot test face, bogey is positioned on test surfaces and guarantees the vertical of injection bar, around injection bar, place load piece, charger is positioned over to bogey top and keeps it vertical, drop hammer lifting is tangled to hooking device, then make to drop hammer and break off relations and freely fall and impact.
During test, drop hammer from certain altitude free-falling, impact bogey, the injection bar injection soil body on bogey, insertion depth is measured by vibration-measuring sensor, and its value is relevant with soil strength.By contrast test, can draw the dependency relation between depth of penetration and bearing ratio.
The beneficial effects of the utility model comprise:
1. integrate dynamic deformation modulus vd and dynamic bearing ratio CBR test instrument.Dynamic load, do not need counterforce device; Automatically test, automatic log value; Instrument is light and handy, easy to use, simple to operate, detection speed is fast, data are accurately objective.
2. automatically locate, record and store mileage and the absolute altitude of field trial point.
3. the self-checking function of instrument can be judged the validity of acceleration transducer and settlement device test data automatically.
4. the inside of dropping hammer is provided with bearing, and convenient operation reduces guide rod frictional influence in the dropping process that drops hammer.
The above; it is only the preferably specific 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; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. a multi-functional dynamic deformation module detector, is characterized in that, comprises charger, bogey;
Described charger comprises guiding steel cage, damping unit, the guide rod connecting successively from bottom to top, and on described guide rod, cover drops hammer, and the top of described guide rod is provided with the hook that drops hammer;
Described bogey comprises the first load steel cage and the second load steel cage, the bottom of described the first load steel cage is connected with injection bar, described injection bar is provided with handle, the bottom of described the second load steel cage is connected with circular loaded plate, and the interior hole shape of the profile on described the first load steel cage and the second load steel cage top and described guiding steel cage bottom adapts;
In described the first load steel cage and the second load steel cage, be respectively equipped with depression testing arrangement.
2. multi-functional dynamic deformation module detector according to claim 1, it is characterized in that, described depression testing arrangement comprises acceleration transducer and the settlement device being connected, described settlement device inside is provided with global positioning satellite gps receiver, and described global positioning satellite gps receiver is connected with described settlement device by wire.
3. multi-functional dynamic deformation module detector according to claim 2, is characterized in that, described depression testing arrangement is provided with the self-test unit of acceleration transducer and settlement device test data.
4. according to the multi-functional dynamic deformation module detector described in claim 1,2 or 3, it is characterized in that, described in the inside of dropping hammer bearing is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356792.1U CN203924148U (en) | 2014-06-30 | 2014-06-30 | Multi-functional dynamic deformation module detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356792.1U CN203924148U (en) | 2014-06-30 | 2014-06-30 | Multi-functional dynamic deformation module detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203924148U true CN203924148U (en) | 2014-11-05 |
Family
ID=51820002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420356792.1U Expired - Lifetime CN203924148U (en) | 2014-06-30 | 2014-06-30 | Multi-functional dynamic deformation module detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203924148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203401A (en) * | 2015-10-16 | 2015-12-30 | 中铁第五勘察设计院集团有限公司 | Rapid plate load testing instrument |
-
2014
- 2014-06-30 CN CN201420356792.1U patent/CN203924148U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203401A (en) * | 2015-10-16 | 2015-12-30 | 中铁第五勘察设计院集团有限公司 | Rapid plate load testing instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106759216B (en) | A kind of penetrometer and its measurement method having both dynamic sounding and static sounding | |
| CN102053040B (en) | Dynamic bearing ratio detecting method and instrument | |
| KR101447197B1 (en) | Device of dynamic cone penetrometer test and measuring method of soil compaction using the same | |
| CN202433147U (en) | Portable dynamic force calibrating device | |
| CN102900063B (en) | Dynamic pore-pressure static sounding probe for detecting sludge | |
| CN103115832A (en) | Tester for soil pressure bearing and shearing test | |
| CN103174122B (en) | Lateral stress pore pressure probe used for testing soil static lateral pressure coefficient | |
| CN202073124U (en) | Handheld type drop hammer deflectometer | |
| CN2413279Y (en) | Drop hammer type roadbed stiffness tester | |
| CN104142388A (en) | In-situ static force pressing testing device and method in drill hole | |
| CN102518106A (en) | Method for determining the lateral earth pressure based on the multi-functional piezocone penetration test probe | |
| CN110924932A (en) | Penetration test equipment and penetration test recorder thereof | |
| CN112014475A (en) | Method for detecting compaction quality of coarse-particle soil roadbed filler based on shear wave velocity | |
| CN101556271A (en) | Method for detecting compacting quality of roadbed | |
| CN200941086Y (en) | Deformed modulus E tester | |
| CN203924148U (en) | Multi-functional dynamic deformation module detector | |
| CN103364294A (en) | Guide-cylinder drop-hammer type rapid bearing ratio detector | |
| CN204422333U (en) | Surface vibration compaction test instrument parameter pick-up unit | |
| CN201926598U (en) | Dynamic bearing ratio detector | |
| RU2192006C2 (en) | Method and apparatus for determining physicomechanical properties of ground layer preferably of low and average density | |
| CN103630283A (en) | Sleeper longitudinal-transverse resistance dynamic detector and detecting method | |
| Kang et al. | Modulus Properties of Granular Materials at Various Strain Levels from Repeated Load Triaxial Testing with Bender Elements | |
| CN203365260U (en) | Rapid bearing ratio detector provided with guide cylinder and drop hammer | |
| CN105544623A (en) | Calibrating device and calibrating method applied to dynamic measuring instrument of foundation pile | |
| CN213709465U (en) | Pore pressure static sounding probe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term |