CN204945096U - A kind of backfill soil compactness detection device - Google Patents
A kind of backfill soil compactness detection device Download PDFInfo
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- CN204945096U CN204945096U CN201520704647.2U CN201520704647U CN204945096U CN 204945096 U CN204945096 U CN 204945096U CN 201520704647 U CN201520704647 U CN 201520704647U CN 204945096 U CN204945096 U CN 204945096U
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Abstract
The utility model discloses a kind of backfill soil compactness detection device, comprising: industrial computer, single-chip microcomputer, data collecting card, ultrasonic listening circuit, probe and reflecting plate; Wherein, described industrial computer is connected with described single-chip microcomputer, described single-chip microcomputer is connected with described ultrasonic listening circuit and data collecting card, described data collecting card is connected with described ultrasonic listening circuit and described industrial computer, for receiving the ultrasonic echo of ultrasonic listening circuit reception and being sent to described industrial computer, described probe is connected with described ultrasonic listening circuit, and described industrial computer calculates the packing of described backfill soil according to the ultrasound wave of transmission and the ultrasonic echo of reception.Device of the present utility model utilizes ultrasonic wave principle to carry out the detection of the packing of backfill soil, achieves the Non-Destructive Testing to backfill soil, and can realize detecting in real time, accurately.
Description
Technical field
The utility model relates to engineering equipment technical field, particularly a kind of backfill soil compactness detection device.
Background technology
Packing i.e. compactness.Compactness is one of key index of subgrade and pavement detection of construction quality, and characterize the density situation after field compaction, compactness is higher, and density is larger, and material monolithic performance is better.For roadbed this, for semi-rigid base course and pellet class flexbile base, compactness refers to the ratio of the actual dry density that reaches and indoor standard hit-solid experiment gained maximum dry density on building site.
The method that conventional densification degree detects has: sand replacement method, core cutter method, Nucleus Density Apparatus method etc., but no matter be core cutter method, sand replacement method or nucleon mensuration all rest on result and detect, meanwhile tool changing method, sand replacement method also belong to damage and detect that not only troublesome poeration is time-consuming takes a lot of work, and also consume many defects such as a large amount of properties simultaneously.
In addition, backfill compaction quality controls primarily of compaction coefficient, such as, but for high-grade railway and highway, the Subgrade Compaction Quality of special line for passenger trains controls primarily of coefficient of subgrade reaction K30, dynamic deformation modulus vd, deformation modulus Ev2, porosity n, coefficient of compaction K.In subgrade compaction process, mainly rely on scene " sampling " test method to detect These parameters.Such roadbed quality inspection method is parasitic following weak point in the quality control of foundation and construction economy: 1) represent full face quality by the testing result of indivedual point, therefore can not reflect roadbed tunneling boring compaction quality.2) quality control is only output control, instead of process control.3) uncontrollable superpressure phenomenon.4) when filler exists unevenness, sample point is difficult to representative.5) damage detection sampling itself, to compacting filling soil, there is destruction, and take time and effort.
Utility model content
Based on the problems referred to above, the utility model provides a kind of backfill soil compactness detection device, utilizes ultrasonic Detection Method to carry out the detection of the packing of backfill soil, achieves the Non-Destructive Testing to backfill soil, and can realize detecting in real time, accurately.
For above-mentioned purpose, the utility model provides a kind of backfill soil compactness detection device, it is characterized in that, comprising: industrial computer, single-chip microcomputer, data collecting card, ultrasonic listening circuit, probe and reflecting plate;
Wherein, described industrial computer is connected with described single-chip microcomputer, for sending data acquisition instructions to single-chip microcomputer, described single-chip microcomputer is connected with described ultrasonic listening circuit and data collecting card, for starting described ultrasonic listening circuit and data collecting card according to described data acquisition instructions, described ultrasonic listening circuit receives the ultrasonic echo of described probe detection according to the ultrasound wave of the instruction issue predeterminated frequency of described single-chip microcomputer to described probe, described data collecting card is connected with described ultrasonic listening circuit and described industrial computer, for receiving the ultrasonic echo of ultrasonic listening circuit reception and being sent to described industrial computer, described probe is connected with described ultrasonic listening circuit, described probe is close to the top of back fill course, for hyperacoustic transmitting and receiving, described industrial computer calculates the packing of described backfill soil according to the ultrasound wave of transmission and the ultrasonic echo of reception.
Wherein, described probe is transmitting-receiving integrated ultrasonic transducer.
Wherein, described reflecting plate is multiple base plates of the bottom predeterminated position being arranged on described back fill course.
Wherein, described pick-up unit also comprises temperature measurer, is connected with described industrial computer, for measuring the temperature of described back fill course, and the temperature of measurement is transferred to described industrial computer.
Wherein, described device also comprises power supply, for providing the hyperacoustic voltage being suitable for launching setpoint frequency for described ultrasonic listening circuit.
Wherein, described industrial computer calculates the packing of described backfill soil according to the ultrasound wave of described transmitting and the ultrasonic echo of reception.
Wherein, described device also comprises display, for showing the data and the result of calculating that described industrial computer receives.
The utility model
'sa kind of backfill soil compactness detection device, sonication times detection method is utilized to carry out the detection of the packing of backfill soil, belong to the Non-Destructive Testing to banketing, adopt ultrasound examination, may be used for the detection of packing that large-area fill construction rolls and homogeneity, and can accomplish that in-situ test need not be fetched earth undisturbed; In addition, the method can real-time detector data presents, Data Dynamic follows the tracks of, and has higher detection efficiency and precision; In addition, the investigation depth of device of the present utility model can reach 1.5 meters, can detect thicker back fill course.
Accompanying drawing explanation
Can understanding feature and advantage of the present utility model clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the utility model, in the accompanying drawings:
Fig. 1 shows the structural representation of backfill soil compactness detection device of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 shows the structural representation of backfill soil compactness detection device of the present utility model.
With reference to Fig. 1, backfill soil compactness detection device of the present utility model, specifically comprises: probe 1, ultrasonic listening circuit 2, single-chip microcomputer 3, data collecting card 4, industrial computer 5 and reflecting plate 6.
In the present embodiment, probe 1 is connected with ultrasonic listening circuit 2, and probe 1 is close to the top of back fill course, for hyperacoustic transmitting and receiving, industrial computer 5 is connected with described single-chip microcomputer 3, for sending data acquisition instructions to single-chip microcomputer 3, described single-chip microcomputer 3 is connected with described ultrasonic listening circuit 2 and data collecting card 4, for starting described ultrasonic listening circuit 2 and data collecting card 4 according to described data acquisition instructions, described ultrasonic listening circuit 2 according to the ultrasound wave of the instruction issue predeterminated frequency of described single-chip microcomputer 3 to described probe 1 and receive described probe 1 detection ultrasonic echo, described data collecting card 4 is connected with described ultrasonic listening circuit 2 and described industry control 5 machine, for receiving the ultrasonic echo of ultrasonic listening circuit 2 reception and being sent to described industrial computer 5, described industrial computer 5 calculates the packing of described backfill soil according to the ultrasound wave of transmission and the ultrasonic echo of reception.
In one embodiment of the present of invention, probe 1 is transmitting-receiving integrated ultrasonic transducer, and its resonance frequency 500KHZ, receiving sensitivity-3dB, transmit as rectangle pure-tone polse signal, transmission frequency is adjustable.In addition, the sniffer that probe also can use transmitting-receiving to be separated, is not specifically limited again.
In addition, reflecting plate 6 is for being arranged on multiple base plates of the bottom predeterminated position of described back fill course.
In another embodiment of the present utility model, in order to improve accuracy, this pick-up unit can also comprise temperature measurer, be connected with industrial computer 4, for measuring the temperature of described back fill course, and the temperature of measurement is transferred to described industrial computer, industrial computer can consider when calculating backfill soil packing the impact that different temperature causes.
In addition, device of the present utility model comprises power supply, for providing the hyperacoustic voltage being suitable for launching setpoint frequency for described ultrasonic listening circuit.
In addition, device of the present utility model also comprises display, for showing the data and the result of calculating that described industrial computer receives.
Pick-up unit of the present utility model with single beam ultrasonic probe 1 for core, in conjunction with data processing and memory circuit, to complete the detection of packing.Before backfill soil, the base plate placing about 60*60CM size at plain soil padding is N number of as reverberator, and quantity is determined according to testing requirement.After backfill compaction, probe is close to the face of banketing, device for opening power supply, System self-test start enters readiness for operation.Pick-up unit is by industrial computer 5 and designed data acquisition software, data acquisition instructions is sent to single-chip microcomputer 3 by serial communication, after single-chip microcomputer 3 receives instruction, start supersonic sounding circuit 3 and trigger high-speed data acquisition card 4, now data collecting card 4 will accept the detectable signal passed back by ultrasonic listening circuit 2, and be translated into digital quantity, be stored in industrial computer 5.The upper software of industrial computer 5 will receive digital signal and output in computer screen after digital filtering, related operation, and demonstrate backfill soil packing numerical value.
Device of the present utility model carries out survey calculation by sonication times detection method, and therefore, processor calculates the packing of described backfill soil according to hyperacoustic mistiming of the ultrasound wave of described transmitting and reception.
Particularly, device use procedure of the present utility model is as follows:
A kind of backfill soil compactness detection device of the present utility model, sonication times detection method is utilized to carry out the detection of the packing of backfill soil, belong to the Non-Destructive Testing to banketing, adopt ultrasound examination, may be used for the detection of packing that large-area fill construction rolls and homogeneity, and can accomplish that in-situ test need not be fetched earth undisturbed; In addition, the method can real-time detector data presents, Data Dynamic follows the tracks of, and has higher detection efficiency and precision; In addition, the investigation depth of device of the present utility model can reach 1.5 meters, can detect thicker back fill course.
Device of the present utility model may be used for compactness to construction rolling processes such as railway, highway, airport, water resources dams, packing monitoring and instructs, controls construction rolling pass, realize the Real-Time Monitoring of construction rolling process, fundamentally solve the problems such as Lous pressure, under-voltage, overvoltage simultaneously.Complete process data is provided for improvement compaction technology and compaction quality (compactness, packing) detect.User in use, significantly improves work efficiency, ensure that the construction quality of inserts compactness, obtains obvious economic benefit and social benefit.
Above embodiment is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill of relevant technical field; when not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (7)
1. a backfill soil compactness detection device, is characterized in that, comprising: industrial computer, single-chip microcomputer, data collecting card, ultrasonic listening circuit, probe and reflecting plate;
Wherein, described industrial computer is connected with described single-chip microcomputer, for sending data acquisition instructions to single-chip microcomputer, described single-chip microcomputer is connected with described ultrasonic listening circuit and data collecting card, for starting described ultrasonic listening circuit and data collecting card according to described data acquisition instructions, described ultrasonic listening circuit receives the ultrasonic echo of described probe detection according to the ultrasound wave of the instruction issue predeterminated frequency of described single-chip microcomputer to described probe, described data collecting card is connected with described ultrasonic listening circuit and described industrial computer, for receiving the ultrasonic echo of ultrasonic listening circuit reception and being sent to described industrial computer, described probe is connected with described ultrasonic listening circuit, described probe is close to the top of back fill course, for hyperacoustic transmitting and receiving, described industrial computer calculates the packing of described backfill soil according to the ultrasound wave of transmission and the ultrasonic echo of reception.
2. pick-up unit as claimed in claim 1, it is characterized in that, described probe is transmitting-receiving integrated ultrasonic transducer.
3. pick-up unit as claimed in claim 1, it is characterized in that, described reflecting plate is multiple base plates of the bottom predeterminated position being arranged on described back fill course.
4. pick-up unit as claimed in claim 1, it is characterized in that, described pick-up unit also comprises temperature measurer, is connected with described industrial computer, for measuring the temperature of described back fill course, and the temperature of measurement is transferred to described industrial computer.
5. pick-up unit as claimed in claim 1, it is characterized in that, described device also comprises power supply, for providing the hyperacoustic voltage being suitable for launching setpoint frequency for described ultrasonic listening circuit.
6. pick-up unit as claimed in claim 1, it is characterized in that, described industrial computer calculates the packing of described backfill soil according to the ultrasound wave of described transmitting and the detectable signal of reception.
7. pick-up unit as claimed in claim 1, it is characterized in that, described device also comprises display, for showing the result of data that described industrial computer receives and calculating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520704647.2U CN204945096U (en) | 2015-09-11 | 2015-09-11 | A kind of backfill soil compactness detection device |
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| CN201520704647.2U CN204945096U (en) | 2015-09-11 | 2015-09-11 | A kind of backfill soil compactness detection device |
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| CN204945096U true CN204945096U (en) | 2016-01-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093703A1 (en) * | 2018-11-06 | 2020-05-14 | 中国矿业大学 | Monitoring system for bearing compression rate of filling body in coal mine goaf and monitoring method thereof |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093703A1 (en) * | 2018-11-06 | 2020-05-14 | 中国矿业大学 | Monitoring system for bearing compression rate of filling body in coal mine goaf and monitoring method thereof |
| US11414991B2 (en) | 2018-11-06 | 2022-08-16 | China University Of Mining And Technology | System and method for monitoring bearing compression rate of filler in coal mine gob area |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20180827 Address after: 410000 Room 401 B, Unit 1, West District, Science and Technology Park Project Incubation Center Building, Hunan University, Changsha High-tech Development Zone, Hunan Province Patentee after: Hunan Huashun Construction Project Management Co., Ltd. Address before: 410000 1 unit 401, hatching building, Hu Da Science and Technology Park, 186 Valley Road, Changsha, Hunan. Patentee before: HUNAN CHUJIA SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410000 Room 401 B, Unit 1, West District, Science and Technology Park Project Incubation Center Building, Hunan University, Changsha High-tech Development Zone, Hunan Province Patentee after: Hunan Chujia Engineering Consulting Co., Ltd. Address before: 410000 Room 401 B, Unit 1, West District, Science and Technology Park Project Incubation Center Building, Hunan University, Changsha High-tech Development Zone, Hunan Province Patentee before: Hunan Huashun Construction Project Management Co., Ltd. |