CN104713793A - Roadbed filling quality detector - Google Patents
Roadbed filling quality detector Download PDFInfo
- Publication number
- CN104713793A CN104713793A CN201510152753.9A CN201510152753A CN104713793A CN 104713793 A CN104713793 A CN 104713793A CN 201510152753 A CN201510152753 A CN 201510152753A CN 104713793 A CN104713793 A CN 104713793A
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- Prior art keywords
- roadbed filling
- filler
- bogey
- guide pole
- injection bar
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Abstract
The invention discloses a roadbed filling quality detector. The roadbed filling quality detector comprises a loading device, a load carrying block, a test drum and an electronic testing device, wherein the loading device comprises a hook device, a connecting rod and a drop hammer; the connecting rod comprises a guide rod, a carrying device and a penetrating rod, the upper part of the guide rod is connected with the hook device, the drop hammer is arranged on the guide rod between the hook device and the carrying device; a spring is arranged inside the lower end of the drop hammer; a force sensor is arranged inside the carrying device; the cross section of the penetrating rod is circular, and a vibration measurement sensor is arranged at the top of the penetrating rod; the test drum comprises a base and at least one cylinder, and a filler is arranged in the cylinder; the load carrying block is of a hollow cylindrical type and is arranged above the filler inside the cylinder, and the penetrating rod is inserted from the hollow part of the load carrying block; and the electronic testing device is connected with the vibration measurement sensor and the force sensor by virtue of wires. The roadbed filling quality detector has the advantages that the detection speed is high, loading is dynamic, and results can show mechanical properties of roadbed filling.
Description
Technical field
The present invention relates to a kind of checkout equipment, particularly relate to a kind of roadbed filling mass detecting instrument.
Background technology
Roadbed is as the important component part of railway, highway and Municipal Road Engineering, and its filled soils is smooth-going to guarantee circuit, vehicle fast and safely runs, and the generation reducing the rear subgrade defect of operation is significant.The control of roadbed filling is the primary link ensureing roadbed filling quality and control settlement after construction.At present, China railways selects main employing to limit packing material size, control filler group for filler, and before roadbed large area filling construction, by the method for site test segment process filling test, judges the applicability of filler.This method is for determining rational parameters of construction technology, verifying whether filler is suitable for, and can reach good effect; If when occurring during site test segment process fills that rolling rear Testing index can not meet compacting criteria requirement, the packing course of placement grinding can only be excavated to change and fill out, until roll rear Testing index to meet compacting criteria; Repeatedly revision test, wastes a large amount of manpower financial capacities, and affects operating efficiency.
In prior art, highway adopts bearing-ratio test to control filler mechanical property, but the indoor bearing-ratio test time is longer.
Summary of the invention
The object of this invention is to provide the roadbed filling mass detecting instrument that a kind of detection speed is fast, dynamic load, result can reflect roadbed filling mechanical characteristic.
The object of the invention is to be achieved through the following technical solutions:
Roadbed filling mass detecting instrument of the present invention, comprises charger, load block, test cylinder and electronic test equipment;
Described charger comprises hooking device, connecting link, drops hammer;
Described connecting link comprises the guide pole, bogey and the injection bar that set gradually from top to bottom, and described guide pole top is connected with described hooking device, described in drop hammer and to be installed between hooking device and bogey on guide pole;
Spring is equipped with in the inside of described lower end of dropping hammer;
Force snesor is equipped with in described bogey inside;
The section of described injection bar is circular, and vibration-measuring sensor is equipped with at its top;
Described test cylinder comprises base and at least one deck cylindrical drum, and described cylindrical drum is built with filler;
Described load block is the column type of hollow, is placed on the top of filler in described cylindrical drum, and described injection bar inserts from the hollow bulb of described load block;
Described electronic test equipment is connected with vibration-measuring sensor and force snesor by wire.
As seen from the above technical solution provided by the invention, the roadbed filling mass detecting instrument that the embodiment of the present invention provides, owing to comprising charger, load block, test cylinder and electronic test equipment; Charger comprises hooking device, connecting link, drops hammer; Connecting link comprises the guide pole, bogey and the injection bar that set gradually from top to bottom; Force snesor is equipped with in bogey inside; Vibration-measuring sensor is equipped with in injection masthead portion.Detection speed is fast, dynamic load, result can reflect roadbed filling mechanical characteristic.
Accompanying drawing explanation
The structural representation of the roadbed filling mass detecting instrument that Fig. 1 provides for the embodiment of the present invention.
1-hooking device, 2-drops hammer, 3-spring, 4-guide pole, 5-bogey, 6-force snesor, 7-cylindrical drum, 8-base, 9-vibration-measuring sensor, 10-load block, 11-electronic test equipment, 12-filler.
Embodiment
To be described in further detail the embodiment of the present invention below.
Roadbed filling mass detecting instrument of the present invention, its preferably embodiment be:
Comprise charger, load block, test cylinder and electronic test equipment;
Described charger comprises hooking device, connecting link, drops hammer;
Described connecting link comprises the guide pole, bogey and the injection bar that set gradually from top to bottom, and described guide pole top is connected with described hooking device, described in drop hammer and to be installed between hooking device and bogey on guide pole;
Spring is equipped with in the inside of described lower end of dropping hammer;
Force snesor is equipped with in described bogey inside;
The section of described injection bar is circular, and vibration-measuring sensor is equipped with at its top;
Described test cylinder comprises base and at least one deck cylindrical drum, and described cylindrical drum is built with filler;
Described load block is the column type of hollow, is placed on the top of filler in described cylindrical drum, and described injection bar inserts from the hollow bulb of described load block;
Described electronic test equipment is connected with vibration-measuring sensor and force snesor by wire.
Described guide pole, bogey and injection bar are integral type structure.
In the present invention, force snesor is for detecting the impulsive force of dropping hammer and falling to producing.Load block is used for injection bar guiding and avoids surrounding soil on the impact of test findings simultaneously.Cylindrical drum quantity can be selected as required during test.Electronic test equipment can show testing result and field print.
The test philosophy of roadbed filling mass detecting instrument of the present invention is:
Dropping hammer from certain altitude of charger freely falls, and by dropping hammer, power is passed to injection bar by contained spring structure and bogey.In the filler of injection bar under this force in penetration test cylinder.The impulsive force that this process produces and filler distortion, detected by force snesor and vibration-measuring sensor, detection signal is passed to electronic test equipment process by wire.The correlationship of this force value and deformation values reflects the mechanical characteristic of filler, can be used for the grating of guide field filler and rolls.
Beneficial effect of the present invention:
1, compared with conventional test methods, this tester adopts dynamic load, without the need to counterforce device, detects filler mechanical state fast.
2, in charger, guide pole, bogey and the integrated design of injection bar are easy to carry, and without the need to dismounting, reduce test period.
3, spring fitting is in inside of dropping hammer, and alleviates instrument overall weight.
Specific embodiment:
As shown in Figure 1, assembling test cylinder, test cylinder comprises base and three-layer metal cylinder, test cylinder internal diameter 152mm, the every floor height 100mm of metallic cylinder.The filler of certain grating is positioned in test cylinder, after compaction test is carried out in layering, the filler of smooth good test cylinder.Load block is placed in soil body top, and injection bar inserts hollow bulb in load block.Keep injection bar perpendicular to filling surface, tangle on drop hammer lifting to hooking device, then make to drop hammer to break off relations and freely fall and impact, bump is one group for three times, and often group gets test on average.Collection signal is passed to electronic test equipment by force snesor and vibration-measuring sensor, and electronic test equipment processes real-time display to data, and by microprinting conditional curve.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. a roadbed filling mass detecting instrument, is characterized in that, comprises charger, load block, test cylinder and electronic test equipment;
Described charger comprises hooking device, connecting link, drops hammer;
Described connecting link comprises the guide pole, bogey and the injection bar that set gradually from top to bottom, and described guide pole top is connected with described hooking device, described in drop hammer and to be installed between hooking device and bogey on guide pole;
Spring is equipped with in the inside of described lower end of dropping hammer;
Force snesor is equipped with in described bogey inside;
The section of described injection bar is circular, and vibration-measuring sensor is equipped with at its top;
Described test cylinder comprises base and at least one deck cylindrical drum, and described cylindrical drum is built with filler;
Described load block is the column type of hollow, is placed on the top of filler in described cylindrical drum, and described injection bar inserts from the hollow bulb of described load block;
Described electronic test equipment is connected with vibration-measuring sensor and force snesor by wire.
2. roadbed filling mass detecting instrument according to claim 1, is characterized in that, described guide pole, bogey and injection bar are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152753.9A CN104713793A (en) | 2015-04-01 | 2015-04-01 | Roadbed filling quality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152753.9A CN104713793A (en) | 2015-04-01 | 2015-04-01 | Roadbed filling quality detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104713793A true CN104713793A (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510152753.9A Pending CN104713793A (en) | 2015-04-01 | 2015-04-01 | Roadbed filling quality detector |
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| CN (1) | CN104713793A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973733A (en) * | 2016-07-08 | 2016-09-28 | 商洛市交通运输局 | Detection device, detection method and evaluation method of compaction quality of gravel base |
| CN110398418A (en) * | 2019-08-09 | 2019-11-01 | 西南交通大学 | The measurement device of train load is simulated in a kind of railway bed On-site Loading Test of Rc |
| CN114486573A (en) * | 2022-01-13 | 2022-05-13 | 中国电建集团华东勘测设计研究院有限公司 | Calibration device and method in standard penetration test room considering clay anisotropy |
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| DE3410887A1 (en) * | 1984-03-24 | 1985-10-03 | Form + Test Seidner + Co GmbH, 7940 Riedlingen | Device for raising the drop weight of a soil tester |
| JPH06317510A (en) * | 1993-05-06 | 1994-11-15 | Oyo Corp | Dynamic penetration testing method and measuring instrument used for it |
| CN2413279Y (en) * | 2000-03-23 | 2001-01-03 | 铁道部科学研究院铁道建筑研究所 | Drop hammer type roadbed stiffness tester |
| CN101354328A (en) * | 2007-07-27 | 2009-01-28 | 贝恩德·索恩 | Freely falling body detector for determining deformation coefficient of ground under specific impact loading |
| CN102053040A (en) * | 2010-11-24 | 2011-05-11 | 中铁第五勘察设计院集团有限公司 | Dynamic bearing ratio detecting method and instrument |
| CN102507358A (en) * | 2011-12-05 | 2012-06-20 | 中铁第五勘察设计院集团有限公司 | Calibrating device of dynamic deformation modulus tester |
| US20140026635A1 (en) * | 2012-07-30 | 2014-01-30 | Bernd Zorn | Field testing apparatus and method for determining the dynamic elastic modulus of asphalt |
| CN204479422U (en) * | 2015-04-01 | 2015-07-15 | 中铁第五勘察设计院集团有限公司 | A kind of roadbed filling mass detecting instrument |
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2015
- 2015-04-01 CN CN201510152753.9A patent/CN104713793A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3410887A1 (en) * | 1984-03-24 | 1985-10-03 | Form + Test Seidner + Co GmbH, 7940 Riedlingen | Device for raising the drop weight of a soil tester |
| JPH06317510A (en) * | 1993-05-06 | 1994-11-15 | Oyo Corp | Dynamic penetration testing method and measuring instrument used for it |
| CN2413279Y (en) * | 2000-03-23 | 2001-01-03 | 铁道部科学研究院铁道建筑研究所 | Drop hammer type roadbed stiffness tester |
| CN101354328A (en) * | 2007-07-27 | 2009-01-28 | 贝恩德·索恩 | Freely falling body detector for determining deformation coefficient of ground under specific impact loading |
| CN102053040A (en) * | 2010-11-24 | 2011-05-11 | 中铁第五勘察设计院集团有限公司 | Dynamic bearing ratio detecting method and instrument |
| CN102507358A (en) * | 2011-12-05 | 2012-06-20 | 中铁第五勘察设计院集团有限公司 | Calibrating device of dynamic deformation modulus tester |
| US20140026635A1 (en) * | 2012-07-30 | 2014-01-30 | Bernd Zorn | Field testing apparatus and method for determining the dynamic elastic modulus of asphalt |
| CN204479422U (en) * | 2015-04-01 | 2015-07-15 | 中铁第五勘察设计院集团有限公司 | A kind of roadbed filling mass detecting instrument |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973733A (en) * | 2016-07-08 | 2016-09-28 | 商洛市交通运输局 | Detection device, detection method and evaluation method of compaction quality of gravel base |
| CN105973733B (en) * | 2016-07-08 | 2019-03-22 | 商洛市交通运输局 | A kind of detection device, detection method and the evaluation method of granular base course compaction quality |
| CN110398418A (en) * | 2019-08-09 | 2019-11-01 | 西南交通大学 | The measurement device of train load is simulated in a kind of railway bed On-site Loading Test of Rc |
| CN114486573A (en) * | 2022-01-13 | 2022-05-13 | 中国电建集团华东勘测设计研究院有限公司 | Calibration device and method in standard penetration test room considering clay anisotropy |
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Application publication date: 20150617 |
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