CN-115236185-B - Concrete strength detection device and detection method thereof

CN115236185BCN 115236185 BCN115236185 BCN 115236185BCN-115236185-B

Abstract

The invention discloses a concrete strength detection device and a detection method thereof, wherein the detection device comprises a laser emission device and an ultrasonic emission device which are in communication connection, the laser emission device comprises a laser emission host and an installation panel arranged on the emission host, five laser emission and receivers respectively positioned at the four vertexes and the center of the same square are arranged on the installation panel, the laser emission host comprises a data processing device and a timing device which are arranged in the laser emission host, and the timing device and the laser emission and receivers are respectively connected with the data processing device through circuits. The invention mainly aims at the problem that the compressive strength of multiple parts of high-volume concrete is inconvenient to detect, and the detection personnel can detect the strength of the concrete without climbing the large-volume concrete by using a ladder or a scaffold.

Inventors

CHEN SHUXIA
QIAN YUANDI
Ruan Xiucai
MA SHENGFU

Assignees

中国十七冶集团有限公司
中国十七冶集团有限公司

Dates

Publication Date: 20260421
Application Date: 20220720
Priority Date: 20220720

Claims (10)

1. The detection method of the concrete strength detection device comprises a laser emission device (3) and an ultrasonic emission device (5) which are in communication connection, wherein the laser emission device (3) comprises a laser emission host (23) and a mounting panel (8) arranged on the laser emission host (23), five laser emission and receivers (1) which are respectively positioned at the four vertexes and the exact center of the same square are arranged on the mounting panel (8), the laser emission host (23) comprises a data processing device (12) and a timing device (15) which are arranged in the laser emission host (23), and the timing device (15) and each laser emission and receiver (1) are respectively connected with the data processing device (12) through circuits; An electromagnetic wave receiver (4) connected with the data processing device (12) through a circuit is arranged on the laser emission host (23), a radio wave emitter (6) is arranged on the ultrasonic wave emission device (5), and the electromagnetic wave receiver (4) is in communication connection with the radio wave emitter (6); the detection method is characterized by comprising the following steps: S1, aligning a high-volume concrete part to be measured through five laser emission and receivers (1) of a laser emission device (3) and forming five laser irradiation points corresponding to the distribution of each laser emission and receiver (1), and simultaneously carrying timing signals of a timing device (15) into emitted laser; S2, measuring the distances from the five laser emission and receivers (1) to the part to be measured of the concrete through the laser emission device (3), calculating the space angle between the surface of the concrete to be measured and the laser emission surface, and simultaneously calculating the distances between the five laser irradiation points on the surface of the concrete and the connecting line included angles between the laser irradiation points; s3, transmitting ultrasonic waves on the lower surface of the concrete with high volume through an ultrasonic wave transmitting device (5), transmitting an ultrasonic wave pulse signal by the ultrasonic wave transmitting device (5) each time, transmitting the ultrasonic wave signal transmitted by the ultrasonic wave transmitting device (5) to a laser transmitting device (3), and recording the transmitting time of the ultrasonic wave pulse by the laser transmitting device (3); S4, calculating the time difference of the same ultrasonic wave reaching each laser irradiation point by utilizing the Doppler phase change of the laser reflection phase caused by ultrasonic vibration of each laser irradiation point through a laser emission device (3), establishing a coordinate system of the concrete surface by taking the laser irradiation point of the central point of the five laser irradiation points as the coordinate origin of the concrete surface and taking the point closest to the ultrasonic emission device (5) among the coordinate origin and four surrounding laser irradiation points, namely the point with the minimum time difference as an x-axis, and calculating the coordinates of the other four laser irradiation points; s5, calculating the propagation speed of the ultrasonic transverse wave in the concrete by using the distance between the five laser irradiation points, the connecting line included angle between the five laser irradiation points and the time difference that the same ultrasonic wave reaches each laser irradiation point by taking the transverse wave speed of the ultrasonic wave in the concrete and the relative coordinates of the ultrasonic wave transmitting device as unknowns, and correcting the compressive strength of the concrete according to the propagation speed and combining the temperature and the air humidity of the site.
2. The method for detecting the concrete strength of the device according to claim 1, wherein the device further comprises a correction plate (9), five center cross marks (11) which are respectively positioned at four vertexes and the center of the same square are arranged on the front surface of the correction plate (9), the square formed by the positions of the center cross marks (11) is consistent with the square formed by the installation positions of the laser emission and the laser receivers (1), correction plate adjusting screws (10) are respectively arranged at four corners of the back surface of the correction plate (9), and horizontal and vertical correction screws (2) are respectively arranged on the laser emission and the laser receivers (1) in the horizontal and vertical directions.
3. The method for detecting the strength of concrete according to claim 1, wherein the laser emitting host (23) is provided with a temperature sensor (16), a humidity sensor (17), a display device (14) and a data storage device (13) which are respectively connected with the data processing device (12).
4. The method for detecting the strength of concrete according to claim 1, wherein the laser emitting device (3) and the ultrasonic wave emitting device (5) further comprise a first power supply (20) and a second power supply (21), the first power supply (20) is respectively connected with a laser emitting host (23) and each laser emitting and receiving device (1), a laser ranging button (19) is commonly connected to each laser emitting and receiving device (1), the second power supply (21) is respectively connected with the ultrasonic wave emitting device (5) and the radio wave emitter (6), and an ultrasonic wave and radio wave emitting button (18) is commonly connected to the ultrasonic wave emitting device (5) and the radio wave emitter (6).
5. The detection method of the concrete strength detection device comprises a laser emission device (3) and an ultrasonic emission device (5) which are in communication connection, wherein the laser emission device (3) comprises a laser emission host (23) and a mounting panel (8) arranged on the laser emission host (23), five laser emission and receivers (1) which are respectively positioned at the four vertexes and the exact center of the same square are arranged on the mounting panel (8), the laser emission host (23) comprises a data processing device (12) and a timing device (15) which are arranged in the laser emission host (23), and the timing device (15) and each laser emission and receiver (1) are respectively connected with the data processing device (12) through circuits; An electromagnetic wave receiver (4) connected with the data processing device (12) through a circuit is arranged on the laser emission host (23), a radio wave emitter (6) is arranged on the ultrasonic wave emission device (5), and the electromagnetic wave receiver (4) is in communication connection with the radio wave emitter (6); The mounting panel (8) is rotatably arranged on the laser emission host (23) and can rotate by taking the laser emission and receiver (1) at the center of the five laser emission and receivers (1) as the center of a circle; the detection method is characterized by comprising the following steps: S1, aligning a high-volume concrete part to be measured through five laser emission and receivers (1) of a laser emission device (3) and forming five laser irradiation points corresponding to the distribution of each laser emission and receiver (1), and simultaneously carrying timing signals of a timing device (15) into emitted laser; s2, measuring the distances from the five laser emission devices (3) and the receiver (1) to the part to be measured of the concrete; s3, transmitting ultrasonic waves on the lower surface of the concrete with high volume through an ultrasonic wave transmitting device (5), transmitting an ultrasonic wave pulse signal by the ultrasonic wave transmitting device (5) each time, transmitting the ultrasonic wave signal transmitted by the ultrasonic wave transmitting device (5) to a laser transmitting device (3), and recording the transmitting time of the ultrasonic wave pulse by the laser transmitting device (3); S4, calculating the time difference of the same ultrasonic pulse reaching each laser irradiation point by utilizing the Doppler phase change of the laser reflection phase caused by ultrasonic vibration of each laser irradiation point through the laser emitting device (3), judging whether the time difference of the same ultrasonic pulse reaching the laser irradiation points corresponding to the two laser emitting and receiving devices (1) positioned at one diagonal end of the square is equal or not, if not, rotating the mounting panel (8) to drive the laser emitting and receiving devices (1) positioned at four vertexes of the square to rotate, simultaneously controlling the ultrasonic emitting device (5) to connect and intermittently emit the ultrasonic pulse, and calculating the time difference of each ultrasonic pulse reaching each laser irradiation point until the time difference of the same ultrasonic pulse reaching the laser irradiation points corresponding to the two laser emitting and receiving devices (1) positioned at one diagonal end of the square is equal, and at the moment, the three laser emitting and receiving devices (1) positioned at the other diagonal of the square and the three laser emitting and receiving devices (5) corresponding to the three laser emitting and receiving devices are positioned in the same plane; S5, calculating the distance between every two adjacent laser irradiation points according to the distances between the three laser irradiation points which are positioned in the same plane with the ultrasonic wave emitting device (5) and the corresponding laser emitting and receiving devices (1) and the distances between the laser emitting and receiving devices (1), calculating the transverse wave speed of the ultrasonic wave in the concrete according to the time difference of the same ultrasonic wave pulse reaching the three laser irradiation points, and correcting the compressive strength of the concrete according to the propagation speed and the on-site temperature and air humidity.
6. The method according to claim 5, wherein the mounting panel (8) is rotated continuously according to step S4 so that the ultrasonic wave emitting device (5) and the three laser emitting and receiving devices (1) positioned on the other diagonal line of the square are positioned in the same plane, and the three laser emitting and receiving devices (1) are positioned on the same plane, and then the compressive strength value of the concrete is obtained according to step S5, and then the average value is obtained with the evaluated value.
7. The method for detecting the strength of concrete according to claim 5, wherein the laser emission host (23) is provided with a rotating mechanism (32), the mounting panel (8) is arranged on the rotating mechanism (32), and the rotating mechanism (32) comprises a motor (33), a clockwise rotating button (34) and a counterclockwise rotating button (35) which are arranged on the laser emission host (23).
8. The method for detecting the concrete strength of the device according to claim 5, wherein the device further comprises a correction plate (9), five center cross marks (11) which are respectively positioned at four vertexes and the center of the same square are arranged on the front surface of the correction plate (9), the square formed by the positions of the center cross marks (11) is consistent with the square formed by the installation positions of the laser emission and the laser receivers (1), correction plate adjusting screws (10) are respectively arranged at four corners of the back surface of the correction plate (9), and horizontal and vertical correction screws (2) are respectively arranged on the laser emission and the laser receivers (1) in the horizontal and vertical directions.
9. The method for detecting the strength of concrete according to claim 5, wherein the laser emission host (23) is provided with a temperature sensor (16), a humidity sensor (17), a display device (14) and a data storage device (13) which are respectively connected with the data processing device (12).
10. The method for detecting the strength of concrete according to claim 5, wherein the laser emitting device (3) and the ultrasonic wave emitting device (5) further comprise a first power supply (20) and a second power supply (21), the first power supply (20) is respectively connected with a laser emitting host (23) and each laser emitting and receiving device (1), a laser ranging button (19) is commonly connected to each laser emitting and receiving device (1), the second power supply (21) is respectively connected with the ultrasonic wave emitting device (5) and the radio wave emitter (6), and an ultrasonic wave and radio wave emitting button (18) is commonly connected to the ultrasonic wave emitting device (5) and the radio wave emitter (6).

Description

Concrete strength detection device and detection method thereof Technical Field The invention belongs to the technical field of building construction detection equipment, relates to a concrete strength detection device and a detection method thereof, and is suitable for detecting the compressive strength of bridge bearing platforms, pier columns or other large-volume concrete. Background At present, a plurality of methods for detecting the strength of concrete mainly comprise a rebound method, a penetration method, an ultrasonic wave velocity method, a pulling and pulling test, a coring test, a maturity method and the like. The rebound method is the most commonly used nondestructive testing method, and is a surface hardness method because the measurement is performed on the surface of concrete, and is a testing method established based on the existence of correlation between the hardness and the strength of the surface of concrete. The rebound method is simple and convenient and has low cost. However, the rebound method is easily affected by many factors, so that the test accuracy of the rebound method is not high, such as the dry and wet degree of the concrete surface, the existence of coarse aggregate under the measuring point, the carbonization degree of the concrete, the freezing degree of the concrete, the existence of reinforcing steel bars and the like can be affected. The ultrasonic wave velocity method is also a common detection method, such as CN209656629U, which is a concrete strength detection device, and uses an ultrasonic wave velocity to detect the concrete strength through an ultrasonic wave transmitting device and an ultrasonic wave receiving device, and still needs to set a corresponding ultrasonic wave receiving device to perform measurement. However, for strength detection of mass concrete such as bridge bearing platforms and high pier columns, detection personnel need to climb, potential safety hazards exist, corresponding tools need to be carried during detection, use is inconvenient, detection efficiency is low, and meanwhile, detection of different parts of the mass concrete is inconvenient. Disclosure of Invention Aiming at the inconvenience existing in the detection of the compressive strength of the high-volume concrete multi-part in the background technology, the invention provides the concrete strength detection device and the detection method thereof, and the detection personnel can detect the concrete strength without climbing the large-volume concrete by using a ladder or a scaffold. In order to achieve the above purpose, the present invention provides the following technical solutions: The invention relates to a concrete strength detection device, which comprises a laser emission device and an ultrasonic emission device which are in communication connection, wherein the laser emission device comprises a laser emission host and an installation panel arranged on the laser emission host, five laser emission and receivers which are respectively positioned at the four vertexes and the exact center of the same square are arranged on the installation panel, the laser emission host comprises a data processing device and a timing device which are arranged in the laser emission host, and the timing device and the laser emission and receivers are respectively connected with the data processing device through circuits. Further, the detection device further comprises a correction plate, five center cross marks are arranged on the front face of the correction plate and are respectively located at four vertexes and the center of the same square, the square formed by the positions of the center cross marks is consistent with the square formed by the installation positions of the laser emission and the laser receivers, correction plate adjusting screws are respectively arranged at four corners of the back face of the correction plate, and horizontal and vertical correction screws are respectively arranged in the horizontal and vertical directions of the laser emission and the laser receivers. Further, the installation face plate is square, and five laser emission and receivers are respectively installed at the center and four corners of the installation face plate. Further, a temperature sensor and a humidity sensor which are respectively connected with the data processing device are arranged on the laser emission host. Further, the timing device is a quartz resonator. Further, the data processing device is connected with a display device and a data storage device. Further, an electromagnetic wave receiver connected with the data processing device through a circuit is arranged on the laser emission host, a radio wave transmitter is arranged on the ultrasonic emission device, and the electromagnetic wave receiver is in communication connection with the radio wave transmitter. Further, the laser transmitting device and the ultrasonic transmitting device further comprise a first power supply an