CN102621059B - Instrument for detecting dense state of existing roadbed - Google Patents
Instrument for detecting dense state of existing roadbed Download PDFInfo
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- CN102621059B CN102621059B CN201210093457.2A CN201210093457A CN102621059B CN 102621059 B CN102621059 B CN 102621059B CN 201210093457 A CN201210093457 A CN 201210093457A CN 102621059 B CN102621059 B CN 102621059B
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- roadbed
- dense state
- displacement sensor
- feeler lever
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Abstract
The invention discloses an instrument for detecting a dense state of an existing roadbed. The instrument comprises a probe rod, a data acquisition device and an electronic testing device, wherein an angle adjusting device is arranged at the bottom of the data acquisition device, and a guide frame is arranged on a side part of the data acquisition device; the probe rod is inserted into the guide frame; a conical probe is arranged at the lower end of the probe rod, and an energy measuring device is arranged at the upper end of the probe rod; a stay cord type displacement sensor and an angle sensor are arranged in the data acquisition device, and a stay cord of the stay cord type displacement sensor is connected with a side handle of the energy measuring device; and the energy measuring device, the stay cord type displacement sensor and the angle sensor are connected with the electronic testing device through the data acquisition device. The instrument can be used for detecting the dense state of the existing railway roadbed under the condition that the operation of trains is not influenced, and has important meaning for perfecting a railway roadbed compaction quality detection technology and a roadbed public works engineering maintenance technology. The detection instrument is portable, convenient to use, high in detection speed and reliable in data, does not cause damage, cannot interfere with train working, can be used for detecting a roadbed soil body from a roadbed surface and a roadbed slope surface, and is suitable for detecting and evaluating the dense state of a ballast rail roadbed and ballast-less rail roadbed of the existing railway.
Description
Technical field
The present invention relates to a kind of checkout equipment, particularly relate to a kind of existing roadbed dense state detector.
Background technology
Roadbed is the earth structure built by native stone class discrete material, and by the impact of train load and physical environment, subgrade defect is can hardly be avoided.The prerequisite of Disease Treatment is detection to the positions such as existing bedding, substrate and filler thereof, state of soil and assessment, but by the restriction of the busy transport of train and track labyrinth, roadbed carries out lot of experiments and has difficulties.
At present to equal Shortcomings parts of detection method such as static(al), dynamic sounding, wave velocity method, nucleon rays method and geologic radar detections that existing railway roadbed adopts, be difficult to be applied to existing railway roadbed dense state and detect and assessment.
Summary of the invention
The object of this invention is to provide a kind of existing roadbed dense state detector that can be applied to existing railway roadbed dense state and detect and assess.
The object of the invention is to be achieved through the following technical solutions:
Existing roadbed dense state detector of the present invention, comprise feeler lever, data collector, electronic test equipment, the bottom of described data collector is provided with angle regulator, sidepiece is provided with guide frame, described feeler lever is inserted in described guide frame, the lower end of described feeler lever is provided with conical probe, upper end is provided with energy measuring apparatus, draw-wire displacement sensor and angular transducer is provided with in described data collector, the stay cord of described draw-wire displacement sensor is connected with the upper end of described feeler lever, described energy measuring apparatus, draw-wire displacement sensor is connected with described electronic test equipment by data collector with angular transducer.
As seen from the above technical solution provided by the invention, existing roadbed dense state detector provided by the invention, because the bottom of data collector is provided with angle regulator, sidepiece is provided with guide frame, feeler lever is inserted in guide frame, the lower end of feeler lever is provided with conical probe, upper end is provided with energy measuring apparatus, draw-wire displacement sensor and angular transducer is provided with in data collector, the stay cord of draw-wire displacement sensor is connected with the upper end of feeler lever, energy measuring apparatus, draw-wire displacement sensor is connected with electronic test equipment by data collector with angular transducer, can detect existing railway roadbed dense state under the condition not affecting train operation, to improving railway bed compaction quality detection technique and roadbed permanent-way technology maintenance technology is significant.This detector is light, easy to use, detection is quick, data are reliable, without breakage, do not disturb driving, can detect in the face of subgrade soil from road bed and roadbed side slope, be applicable to existing railway Ballast track roadbed and the detection of ballastless track roadbed dense state and assess.
Accompanying drawing explanation
The structural representation of the existing roadbed dense state detector that Fig. 1 provides for the embodiment of the present invention.
In figure: 1-energy measuring apparatus, 2-feeler lever, 3-guide frame, 4-conical probe, 5-standard is hammered into shape, 6-handle, 7-draw-wire displacement sensor, 8-electronic test equipment, 9-data collector, 10-angle regulator, 11-angular transducer.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
Existing roadbed dense state detector of the present invention, its preferably embodiment be:
Comprise feeler lever, data collector, electronic test equipment, the bottom of described data collector is provided with angle regulator, sidepiece is provided with guide frame, described feeler lever is inserted in described guide frame, the lower end of described feeler lever is provided with conical probe, upper end is provided with energy measuring apparatus, draw-wire displacement sensor and angular transducer is provided with in described data collector, the stay cord of described draw-wire displacement sensor is connected with the upper end of described feeler lever, described energy measuring apparatus, draw-wire displacement sensor is connected with described electronic test equipment by data collector with angular transducer.
The outside of described energy measuring apparatus is provided with handle, and the stay cord of described draw-wire displacement sensor is connected with described handle.
This detector can be furnished with standard hammer.
Described electronic test equipment comprises tester, panel, and tester side is provided with printer interface and charging socket, and panel is provided with LCDs, button.
Described electronic test equipment is connected with data collector by cable, can show the depth of penetration of each hammering, injection angle, the E that utilizes injection angle to draw the level of probe and upright position, probe penetration resistance, depth of penetration curve and calculate according to correlationship
vdvalue, K
30value etc.
The present invention can detect existing railway roadbed dense state under the condition not affecting train operation, to improving railway bed compaction quality detection technique and roadbed permanent-way technology maintenance technology is significant.This detector is light, easy to use, detection is quick, data are reliable, without breakage, do not disturb driving, can detect in the face of subgrade soil from road bed and roadbed side slope, be applicable to existing railway Ballast track roadbed and the detection of ballastless track roadbed dense state and assess.
Beneficial effect of the present invention can be summarized as following aspect:
1. have employed hammering load mode, do not need counterforce device.Hammering energy adopts vibration-measuring sensor to detect, and utilizes correlation formula to calculate.
2., by being arranged on the draw-wire displacement sensor in depth measurement device, accurately can record the injection amount after each hammering and total injection amount.
3. existing railway roadbed dense state detector is provided with level(l)ing device, regulates this device that feeler lever and conical probe can be made with different angles injection road bed and roadbed side slope face.
4. existing railway roadbed dense state detector is provided with angular transducer, can detect the injection angle after each hammering, and electronic test equipment draws level and the upright position of probe according to this angle simultaneously.
5. electronic test equipment calculates testing result automatically, can show the depth of penetration of each hammering, probe penetration resistance, depth of penetration curve result can be converted to E according to correlationship formula
vdor K
30value display.
Specific embodiment:
As shown in Figure 1, standard hammer 5, bogey, data collector 9 and electronic test equipment 8 is comprised.
Described standard hammer 5 comprises tup and hammer handle, for providing injection energy.
Described bogey is followed successively by energy measuring apparatus 1, feeler lever 2, conical probe 4 under upper.Energy testing apparatus 1 side is provided with handle, and bottom is connected with feeler lever 2, and vibration-measuring sensor is equipped with for detecting the injection energy of each hammering in inside, and vibration-measuring sensor is connected with data collector 9 by cable.Feeler lever 2 is dismountable structure, can increase feeler lever length according to actual MTD.Feeler lever 2 bottom is connected with dismountable conical probe 4, and the probe choosing different-diameter according to different soil property is tested.
Draw-wire displacement sensor 7 and angular transducer are equipped with in described data collector 9 inside, for detecting depth of penetration and injection angle.Feeler lever 2, with guide frame 3, inserts in guide frame 3 during test by side, fixing injection direction.Simultaneously data collector 9 bottom is provided with angle regulator 10, makes feeler lever 2 can with different angles injection road bed and roadbed side slope face.
Described electronic test equipment 8 is connected with data collector 9 by cable, can show the depth of penetration of each hammering, injection angle, the E that utilizes injection angle to draw the level of probe and upright position, probe penetration resistance, depth of penetration curve and calculate according to correlationship
vdvalue, K
30value.
Described electronic test equipment 8 comprises tester, panel (not shown), tester side is provided with printer interface (not shown) and charging socket (not shown), and panel is provided with LCDs (not shown), button (not shown).
The principle of work of specific embodiment is:
Testing crew applies impulsive force to bogey, in the feeler lever 2 making bogey and conical probe 4 injection soil by standard hammer 5.The energy produced in impact process is detected by the vibration-measuring sensor be arranged in energy measuring apparatus 1 and is calculated by correlation formula.The depth of penetration that hammering produces and injection angle are recorded by the draw-wire displacement sensor 7 and angular transducer 11 being arranged in data collector 9, the vibration measuring signal that data collector 9 will be collected by cable, displacement signal and angle signal pass to electronic test equipment 8, in electronic test equipment 8 A/D converter (A/D), after data processor processes, by the net result display (depth of penetration of each hammering, injection angle, injection angle is utilized to draw level and the upright position of probe, probe penetration resistance, depth of penetration curve and the E calculated according to correlationship
vdvalue, K
30value) in LCDs, this result printable simultaneously.
Existing roadbed dense state detector assesses existing railway Ballast track roadbed and ballastless track roadbed dense state by the injection energy of the soil body after detecting each hammering, depth of penetration, injection angle, be applicable to all kinds of cohesive soil, sand, gravel soil, maximum depth of penetration can reach 4-8 rice.
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 (3)
1. an existing roadbed dense state detector, comprise feeler lever, data collector, electronic test equipment, the lower end of described feeler lever is provided with conical probe, it is characterized in that, the bottom of described data collector is provided with angle regulator, sidepiece is provided with guide frame, described feeler lever is inserted in described guide frame, the upper end of described feeler lever is provided with energy measuring apparatus, draw-wire displacement sensor and angular transducer is provided with in described data collector, the stay cord of described draw-wire displacement sensor is connected with the upper end of described feeler lever, described energy measuring apparatus, draw-wire displacement sensor is connected with described electronic test equipment by described data collector with angular transducer,
This detector is furnished with standard hammer.
2. existing roadbed dense state detector according to claim 1, it is characterized in that, the outside of described energy measuring apparatus is provided with handle, and the stay cord of described draw-wire displacement sensor is connected with described handle.
3. existing roadbed dense state detector according to claim 1 and 2, it is characterized in that, described electronic test equipment comprises tester, panel, and tester side is provided with printer interface and charging socket, and panel is provided with LCDs, button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210093457.2A CN102621059B (en) | 2012-03-31 | 2012-03-31 | Instrument for detecting dense state of existing roadbed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210093457.2A CN102621059B (en) | 2012-03-31 | 2012-03-31 | Instrument for detecting dense state of existing roadbed |
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| CN102621059A CN102621059A (en) | 2012-08-01 |
| CN102621059B true CN102621059B (en) | 2015-04-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163067B (en) * | 2013-03-14 | 2016-02-24 | 北京中路安交通科技有限公司 | Block stamp formula is gathered materials characteristic measuring instrument |
| CN107132125B (en) * | 2017-05-19 | 2024-04-19 | 铜陵长江金刚石工具股份有限公司 | Slope road surface load tester |
| CN107917874A (en) * | 2017-12-29 | 2018-04-17 | 中铁第五勘察设计院集团有限公司 | Retaining wall bankets dense state detection device and method behind |
| CN109916751B (en) * | 2019-03-18 | 2023-11-17 | 中铁二院工程集团有限责任公司 | Long-term stability test device and test method for ballast bed of large ramp |
| CN113356174B (en) * | 2021-06-15 | 2023-02-07 | 太原理工大学 | Multi-angle injection device for detecting strength of soft rock and soil slope and using method |
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| CN2466216Y (en) * | 2000-12-15 | 2001-12-19 | 中国科学院力学研究所 | Portable soil penetrometer |
| US7617718B2 (en) * | 2005-12-13 | 2009-11-17 | Sandy Golgart Sales, Inc. | Device and methods for use of a dynamic cone penetrometer for evaluating soil compaction |
| CN101846595A (en) * | 2010-04-15 | 2010-09-29 | 吕良 | Geological detection sampling instrument |
| CN102012349A (en) * | 2010-11-30 | 2011-04-13 | 华侨大学 | Dynamic sounding device |
| 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 |
| CN202543880U (en) * | 2012-03-31 | 2012-11-21 | 中铁第五勘察设计院集团有限公司 | Existing roadbed dense state detector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Patent Citations (6)
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| CN2466216Y (en) * | 2000-12-15 | 2001-12-19 | 中国科学院力学研究所 | Portable soil penetrometer |
| US7617718B2 (en) * | 2005-12-13 | 2009-11-17 | Sandy Golgart Sales, Inc. | Device and methods for use of a dynamic cone penetrometer for evaluating soil compaction |
| CN101846595A (en) * | 2010-04-15 | 2010-09-29 | 吕良 | Geological detection sampling instrument |
| 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 |
| CN102012349A (en) * | 2010-11-30 | 2011-04-13 | 华侨大学 | Dynamic sounding device |
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