CN201163259Y - Multifunctional roadbed pavement strength tester - Google Patents
Multifunctional roadbed pavement strength tester Download PDFInfo
- Publication number
- CN201163259Y CN201163259Y CNU2007201553892U CN200720155389U CN201163259Y CN 201163259 Y CN201163259 Y CN 201163259Y CN U2007201553892 U CNU2007201553892 U CN U2007201553892U CN 200720155389 U CN200720155389 U CN 200720155389U CN 201163259 Y CN201163259 Y CN 201163259Y
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- CN
- China
- Prior art keywords
- roadbed
- pavement
- multifunctional
- strength tester
- measuring arm
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to a high-tech multifunctional roadbed and pavement strength tester with convenient use, high efficiency and multifunctional detection of the strength of a roadbed, a pavement and a building earth foundation, wherein, a counterforce device is connected to an extension bar, then connected with a hydraulic loading system together and finally connected with a bearing plate; a pressure sensor is arranged between the hydraulic loading system and the bearing plate; the front end of a measuring arm is provided with a contact which contacts the center of the bearing plate; the measuring arm is supported on a supporting arm through a lever fulcrum which is fixed on the supporting arm; the supporting arm is connected with three bearing supports which are placed on the roadbed to be tested; a sensing contact of a displacement sensor which is arranged on the rear end of the measuring arm always contacts the rear surface of the measuring arm; and the displacement sensor and the pressure sensor are connected with a microcomputer. The high-tech multifunctional roadbed and pavement strength tester fundamentally solves the problem in the prior art that different testing instruments are required to be configured and used for detection of different strength parameters of the roadbed and the pavement, and has the advantages of reasonable structure, high automation degree, convenient operation and economy and practicality.
Description
Technical field
The utility model relates to the new and high technology of a kind of easy to use, high-level efficiency, multi-functional detection roadbed, road surface and buildings earth foundation intensity.Solved and detected the problem that subgrade and pavement varying strength parameter need dispose the different testing tools of use before this, all roadbeds, road surface and buildings earth foundation strength tester are all at single parameter in the market; Promptly then need a static deformation modulus instrument and a modulus of resilience tester as detecting the roadbed static deformation modulus and the modulus of resilience.By using the utility model, can fundamentally address this problem, this utility model is rational in infrastructure, automaticity is high, easy to operate, economical and practical.
Background technology
At present, a plurality of parameter indexs are arranged, and detection needs different detecting instruments to different parameters in evaluation to roadbed, road surface and buildings earth foundation intensity.According to present correlation technique standard, the major parameter index of estimating roadbed, road surface and buildings earth foundation intensity has four: the static deformation modulus; The modulus of resilience; Rebound deflection and bearing ratio.Need be equipped with four instrumentations if detect above-mentioned four parameters thus, increase user's Instrument purchase expense, keeping and maintenance expense like this, strengthen the detection cost.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the single shortcoming of above-mentioned various single instrumental functions, provide a kind of have multi-functional, high-level efficiency, the multi-functional subgrade and pavement strength tester that integrated cost is low.
The purpose of this utility model is achieved in that counterforce device is connected on the extension rod and links together with hydraulic loading system, and finally be connected with loading plate, between hydraulic loading system and loading plate, pressure transducer is housed, the front end of gage beam is equipped with the contact that contacts with the loading plate center, gage beam is supported on the sway brace by the balance pivot that is fixed on the sway brace, sway brace by be positioned over tested roadbed on three supporting bases be connected, the sensor contact that is installed in the displacement transducer of gage beam rear end contacts with the gage beam rear end surface all the time, and displacement transducer and pressure transducer are connected with microcomputer.
The utility model one-piece construction is by the displacement measuring device that displacement transducer is housed and pressure transducer load measurement device, hydraulic loading system, counterforce device, microcomputer control system and software program are housed form.Select corresponding displacement measurement and load measurement device according to different detected objects and measurement parameter; Corresponding load mode and test procedure, the selection of test procedure is to realize by the selection key of man-machine interface.The displacement signal of load pressure signal that acts on measurand that pressure transducer and displacement transducer will be sensed in the test and load pressure generation thus transfers to microcomputer control system, microcomputer control system amplifies input signal under measurement and control program control, filtering, resolve etc. handle after, its test result is shown or printout by the man-machine interface liquid crystal display.Microcomputer control system also has data recording and looks into truly function.
The utility model has fundamentally solved and has detected subgrade and pavement varying strength parameter before this and need dispose the problem of using different testing tools, and this utility model is rational in infrastructure, automaticity is high, easy to operate, economical and practical.Be described further below in conjunction with accompanying drawing and enforcement.
Description of drawings:
Fig. 1 is a measurement structure front view of the present utility model;
Fig. 2 is a measurement structure vertical view of the present utility model;
Fig. 3 is microcomputer control system figure of the present utility model.
Among Fig. 1, Fig. 2: displacement measuring device 1, by the contact; 2, carrying; 3, hydraulic loading system plate; 4, extension rod; 5, counterforce device; 6, displacement transducer; 7, bracing frame; 8, balance pivot; 9, gage beam; 10, pressure transducer; 11, supporting seat.
Embodiment:
According to testing requirements by hydraulic loading system 3 load applications, act on pressure transducer 10 and transmit load to loading plate 2 by counterforce device 5 by pressure transducer 10, pressure transducer 10 will produce corresponding electric pressure signal B, measurand under the loading plate 2 is subjected to load action and produces displacement, and this displacement produces displacement by contact 1 and gage beam 9 is rotated around fulcrum 8; Because three strong points of bracing frame 7 remain static all the time away from the measurand displacement point under the loading plate 2, the displacement transducer 6 that is fixed on the bracing frame 7 converts corresponding displacement electric signal A by the relative shift of measuring between bracing frame 7 and the gage beam 9 to by displacement transducer 6, be input to " data acquisition system (DAS) " after the electric pressure signal B that displacement electric signal A that displacement transducer 6 produces and pressure transducer 10 produce " signal condition system " conditioning and transferred to digital signal, the measurement result that this digital signal is become to require by Computer Processing according to setting program through Fig. 2 microcomputer control system.
Claims (1)
1, a kind of multi-functional subgrade and pavement strength tester, it is characterized in that: counterforce device (5) is connected on the extension rod (4) and links together with hydraulic loading system (3), and finally be connected with loading plate (2), between hydraulic loading system (3) and loading plate (2), pressure transducer (10) is housed, the front end of gage beam (9) is equipped with the contact (1) that contacts with loading plate (2) center, gage beam (9) is supported in (7) on the sway brace by the balance pivot (8) that is fixed on the sway brace (7), sway brace (7) by be positioned over tested roadbed on three supporting bases (11) be connected, the sensor contact that is installed in the displacement transducer (6) of gage beam (9) rear end contacts with gage beam (9) rear end surface all the time, and displacement transducer (6) and pressure transducer (10) are connected with microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201553892U CN201163259Y (en) | 2007-07-18 | 2007-07-18 | Multifunctional roadbed pavement strength tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201553892U CN201163259Y (en) | 2007-07-18 | 2007-07-18 | Multifunctional roadbed pavement strength tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163259Y true CN201163259Y (en) | 2008-12-10 |
Family
ID=40184194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201553892U Expired - Fee Related CN201163259Y (en) | 2007-07-18 | 2007-07-18 | Multifunctional roadbed pavement strength tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163259Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706528A (en) * | 2012-05-25 | 2012-10-03 | 中国矿业大学(北京) | Gas flow characteristic testing device of fragmented coal rock mass |
| CN102943428A (en) * | 2012-11-26 | 2013-02-27 | 北京科百宏业科技有限公司 | Pavement structure experiment system and method for building counterforce foundation for pavement structure experiment system |
| CN103469710B (en) * | 2013-09-16 | 2016-05-18 | 叶斌 | A kind of the quality control of foundation construction method based on the modulus of resilience |
| CN106769499A (en) * | 2016-11-11 | 2017-05-31 | 北京高铁建科技发展有限公司 | Flat plate load-bearing tester and its method of testing |
| CN107356733A (en) * | 2017-07-12 | 2017-11-17 | 梁志华 | A kind of intelligent highway in seasonal frost region roadbed service condition evaluation system |
-
2007
- 2007-07-18 CN CNU2007201553892U patent/CN201163259Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706528A (en) * | 2012-05-25 | 2012-10-03 | 中国矿业大学(北京) | Gas flow characteristic testing device of fragmented coal rock mass |
| CN102943428A (en) * | 2012-11-26 | 2013-02-27 | 北京科百宏业科技有限公司 | Pavement structure experiment system and method for building counterforce foundation for pavement structure experiment system |
| CN102943428B (en) * | 2012-11-26 | 2015-02-04 | 北京科百宏业科技有限公司 | Pavement structure experiment system and method for building counterforce foundation for pavement structure experiment system |
| CN103469710B (en) * | 2013-09-16 | 2016-05-18 | 叶斌 | A kind of the quality control of foundation construction method based on the modulus of resilience |
| CN106769499A (en) * | 2016-11-11 | 2017-05-31 | 北京高铁建科技发展有限公司 | Flat plate load-bearing tester and its method of testing |
| CN107356733A (en) * | 2017-07-12 | 2017-11-17 | 梁志华 | A kind of intelligent highway in seasonal frost region roadbed service condition evaluation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Lei Yan Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20100718 |