A cast-in-place pile over-pouring inspection monitoring device and method

Abstract

The present application belongs to the technical field of concrete pouring monitoring, and solves the problem of inaccurate monitoring results when using the existing detection device. A pouring pile over-pouring inspection monitoring equipment and method are provided, which include a sensor, a transmission pull line and an over-pouring detector. The sensor includes a detection sensing component and a shock component, the shock component is used to generate a fixed frequency mechanical wave, and the detection sensing component is used to detect and analyze different feedback waveforms. According to the analysis results of different feedback waveforms, the medium environment in which the sensor is located is distinguished. The sensor is transmitted to the over-pouring detector through the transmission pull line and finally sent to the data terminal. The two ends of the transmission pull line are respectively connected with the sensor and the over-pouring detector. The over-pouring detector is installed on a reel for pulling and releasing the transmission pull line, and the sensor is placed on the reinforcement cage at a position for calibrating the height of concrete. The present application can realize accurate pouring liquid level monitoring of the pouring pile concrete pouring process and avoid over-pouring.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of concrete pouring monitoring, and particularly relates to a bored pile over-pouring inspection monitoring device and method. BACKGROUND

[0002] The conventional method for measuring the elevation of a cast-in-place bored pile is the plumb method, in which a worker hangs a 1kg plumb weight from a measuring rope, strikes the stones, and determines whether the plumb weight has reached the surface of the aggregate concrete based on the worker's sense of touch. This method often results in a large over-pouring height due to large errors in measurement.

[0003] Chinese Patent No. CN201911338295.2 discloses a force and electricity complementary detection probe, an over-pouring detection device, and an over-pouring detection method. The detection probe, a rotating baffle, and a monitoring circuit board in a shell are used. The monitoring circuit board is provided with a resistivity measurement module and a torque measurement module. During the concrete over-pouring detection process, the electrical parameter detection part of the detection probe is used to detect the mud, the concrete float, and the aggregate concrete section, and the height of the concrete float is preliminarily determined. Then, the rotating torque is detected, and the rotating torque and the electrical parameter are compared and verified with each other. When both the rotating torque and the electrical parameter meet the requirements, the aggregate concrete reaches the elevation position.

[0004] This method can improve the testing efficiency and accuracy. However, during the operation of the motor, the shell heats up quickly, affecting the inductance monitoring of the monitoring circuit board and the power parameter monitoring data. The torque detection of the baffle knob needs to read the rotating speed of the baffle through the speed monitoring module of the motor. Inaccurate speed reading will result in large torque judgment deviation, causing the final judgment result to be not accurate enough. The above two points will result in inaccurate monitoring results of the device over a long period of use. SUMMARY

[0005] The present application provides a bored pile over-pouring inspection monitoring device and method to solve at least one of the above technical problems in the prior art.

[0006] The present application adopts the following technical solution: a bored pile over-pouring inspection monitoring device, comprising a sensor, a transmission and pulling line, and an over-pouring detector. The sensor comprises a detection sensing component and a vibration component. The vibration component is used to generate a fixed frequency mechanical wave, and the detection sensing component is used to detect and analyze different feedback waveforms. According to the analysis results of different feedback waveforms, the medium environment in which the sensor is located is distinguished. The sensor is transmitted to the over-pouring detector through the transmission and pulling line and is finally sent to a data terminal. The two ends of the transmission and pulling line are connected with the sensor and the over-pouring detector, respectively. The over-pouring detector is installed on a reel for pulling and releasing the transmission and pulling line. The sensor is placed at a position for calibrating the height of the concrete on the reinforcement cage.

[0007] Preferably, the detection sensing component includes a tail tube, a first nylon component, a first conductive ring, a second nylon component, a second conductive ring, and a third nylon component connected in sequence. The tail tube has a built-in waveform detection and analysis module, which is connected to the transmission pull wire. The oscillation component includes a high-frequency motor and an oscillating blade. The oscillating blade is connected to the output shaft of the high-frequency motor. The high-frequency motor has a built-in high-frequency vibration sensing module, and the end of the high-frequency motor away from the oscillating blade is connected to the third nylon component.

[0008] Preferably, an oil seal is connected to the end of the motor housing of the high-frequency motor away from the third nylon part. The oil seal is movably sleeved on the output shaft of the high-frequency motor. The oil seal includes an oil seal base, an oil seal body and an oil seal cover connected in sequence.

[0009] Preferably, the end of the tail tube is threadedly connected to the threaded end of the first nylon part, the first conductive ring is sleeved on the convex ring where the first nylon part and the second nylon part abut, the second conductive ring is sleeved on the convex ring where the second nylon part and the third nylon part abut, and the threaded end of the third nylon part is threadedly connected to the motor housing.

[0010] The motor housing, oil seal base, oil seal body, and oil seal cover are connected by long bolts. The connection between the motor housing and the oil seal base has a matching ring and groove structure. The convex ring of the oil seal body is embedded in the groove of the oil seal cover. The end face of the oil seal cover near the vibrating blade is abutted by an annular pressure plate.

[0011] Preferably, the sensor is attached to the hanging bar, which extends into the cast-in-place pile and is hung on the reinforcing cage.

[0012] Preferably, the sensor is connected to the fixing member by a ring buckle. The fixing member has a cable tie hole, and the inner wall of the lower end of the cable tie hole has a cutting edge. The fixing member is tied to the steel cage by the cable tie, and the cable tie can be cut by the cutting edge during the upward lifting process, thereby pulling the sensor back.

[0013] This invention also provides a method for inspecting and monitoring over-pouring in cast-in-place piles, comprising the following steps:

[0014] S1: Place the over-pouring detector at the grouting pile; before use, insert the sensor into the pre-pouring concrete or grouting pile mud, and calibrate the concrete or mud in advance, that is, the values ​​of the characteristic parameters of the two.

[0015] S2: After calibration, concrete is poured. According to the scale on the transmission pull-out line, the sensor is lowered to the concrete pouring elevation.

[0016] S3: During the concrete pouring process, when the over-pouring detector detects that the concrete is close to the elevation, the yellow indicator light of the over-pouring detector will flash, accompanied by intermittent beeping, to remind the construction workers to slow down the concrete pouring speed.

[0017] S4: When the overfill detector detects that the concrete reaches the designated position, the green indicator light of the overfill detector is long and accompanied by a continuous buzzing sound, the pouring of the concrete is stopped, and the overfill detector is turned off;

[0018] S5: The sensor is pulled out from the un-solidified concrete in time and cleaned, and the transmission pulling line is cleaned and rewound on the reel after cleaning, and the pouring work of the concrete is completed.

[0019] Preferably, in step S1, when the pre-marking is performed, it is necessary to ensure that the sensor is submerged in the concrete or mud, and the sensor cannot be in contact with metal objects.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The present application generates a fixed frequency mechanical wave through the oscillation assembly, and the mechanical wave reflects different waveforms in different media, thereby distinguishing between floating slurry, concrete slurry, aggregate concrete, etc. Different feedback waveforms are distinguished through the built-in waveform detection and analysis module, thereby distinguishing the medium environment of the sensor, and thereby distinguishing between floating slurry, concrete slurry, aggregate concrete, etc. The present application realizes accurate pouring level monitoring of the cast-in-place pile concrete pouring process, and avoids overfilling. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a schematic diagram of the overall structure of the device;

[0024] Figure 2 is a schematic diagram of the structure of the sensor in the device;

[0025] Figure 3 is a schematic diagram of the structure of the tail line tube;

[0026] Figure 4 is a schematic diagram of the structure of the first nylon part;

[0027] Figure 5 is a schematic diagram of the structure of the second nylon part;

[0028] Figure 6 is a schematic diagram of the structure of the third nylon part;

[0029] Figure 7 is a schematic diagram of the structure of the first conductive ring or the second conductive ring;

[0030] Figure 8is a structural schematic diagram of the motor shell;

[0031] Figure 9 is a structural schematic diagram of the oil seal base;

[0032] Figure 10 is a structural schematic diagram of the oil seal body;

[0033] Figure 11 is a structural schematic diagram of the oil seal cover;

[0034] Figure 12 is a structural schematic diagram of the annular pressing plate;

[0035] Figure 13 is a structural schematic diagram of the output shaft;

[0036] Figure 14 is a structural schematic diagram of the oscillating blade;

[0037] Figure 15 is a structural schematic diagram of the fixing part;

[0038] Figure 16 is a front schematic diagram of the overfill detector.

[0039] In the figure: 1-sensor; 1.1-tail line tube; 1.2-first nylon part; 1.3-first conductive ring; 1.4-second nylon part; 1.5-second conductive ring; 1.6-third nylon part; 1.71-output shaft; 1.72-motor shell; 1.81-oil seal base; 1.82-oil seal body; 1.83-oil seal cover; 1.9-oscillating blade; 1.10-annular pressing plate; 2-transmission pull line; 3-overfill detector; 4-data terminal; 5-reel; 6-annular buckle; 7-fixing part; 7.1-belt hole; 7.2-cutting blade; 8-reinforcing cage; 9-cloud. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application are clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0041] It is to be understood that the structures, proportions, sizes, etc. shown in the drawings of the present disclosure are merely used to cooperate with the content disclosed in the present disclosure for understanding and reading by those skilled in the art, and are not used to limit the defined conditions under which the present application can be implemented, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should fall within the scope of the technical content disclosed by the present application. It should be noted that in the present specification, relationship terms such as first and second are merely used to distinguish one entity from another entity, and do not necessarily require or imply any actual relationship or order between the entities.

[0042] The present application provides an embodiment:

[0043] As Figures 1 to 16 shown, a cast-in-place pile over-pouring inspection monitoring device includes a sensor 1, a transmission pull line 2 and an over-pouring detector 3; the sensor 1 includes a detection sensing assembly and a vibration assembly, the vibration assembly is used to generate a fixed frequency mechanical wave, the detection sensing assembly is used to detect and analyze different feedback waveforms, and the medium environment in which the sensor is located is distinguished according to the analysis results of different feedback waveforms, the sensor 1 is transmitted to the over-pouring detector 3 through the transmission pull line 2 and finally sent to a data terminal 4; two ends of the transmission pull line 2 are respectively connected with the sensor 1 and the over-pouring detector 3, the over-pouring detector 3 is installed on a reel 5 for pulling and releasing the transmission pull line 2, and the sensor 1 is placed on the reinforcement cage at a position for calibrating the height of the concrete.

[0044] In the embodiment, the detection sensing assembly includes a tail line tube 1.1, a first nylon piece 1.2, a first conductive ring 1.3, a second nylon piece 1.4, a second conductive ring 1.5 and a third nylon piece 1.6 connected in sequence, a waveform detection and analysis module is built in the tail line tube 1.1, and the waveform detection and analysis module is connected with the transmission pull line 2; the vibration assembly includes a high-frequency motor and a vibration blade 1.9, the vibration blade 1.9 is connected with an output shaft 1.71 of the high-frequency motor, a high-frequency vibration sensing module is built in the high-frequency motor, and one end of the high-frequency motor away from the vibration blade 1.9 is connected with the third nylon piece 1.6. An oil seal piece is connected with one end of a motor shell 1.72 of the high-frequency motor away from the third nylon piece 1.6, the oil seal piece is movably sleeved on the output shaft 1.71 of the high-frequency motor, and the oil seal piece includes an oil seal base 1.81, an oil seal body 1.82 and an oil seal cover 1.83 connected in sequence.

[0045] The tail wire tube 1.1 is threadedly connected with the threaded end of the first nylon member 1.2, the first conductive ring 1.3 is sleeved on the convex ring where the first nylon member 1.2 and the second nylon member 1.4 abut, the second conductive ring 1.5 is sleeved on the convex ring where the second nylon member 1.4 and the third nylon member 1.6 abut, and the threaded end of the third nylon member 1.6 is threadedly connected with the motor shell 1.72; the motor shell 1.72, the oil seal base 1.81, the oil seal body 1.82 and the oil seal cover 1.83 are connected through long bolts, the connection between the motor shell 1.72 and the oil seal base 1.81 has a matching ring and groove structure, the convex ring of the oil seal body 1.82 is embedded into the groove body of the oil seal cover 1.83, and the end surface of the oil seal cover 1.83 close to the oscillating blade 1.9 abuts against the annular pressing sheet 1.10.

[0046] The working principle of the present application is as follows:

[0047] The superimposed waveforms of incident waves and reflected waves of high-frequency mechanical waves in a strong sound field environment are different, and different liquid environments with different densities will obtain different feedback waveforms. The higher the density, the smaller the amplitude of the feedback waveform. The pouring pile is poured with design formula concrete from the bottom of the pile, and it is necessary to identify the liquid environment as concrete slurry, and the elastic modulus and density of the fixed formula concrete are unchanged. The pouring pile belongs to concealed construction, the concrete slurry belongs to wave dense medium, and the pile hole diameter is small. This environment can obtain stable feedback waveform by using high-frequency mechanical wave detection. Therefore, the liquid environment can be identified by using the superimposed feedback of high-frequency mechanical waves in different density concrete slurries.

[0048] The high-frequency vibration sensing module is an integrated high-frequency vibration trigger based on CMOS digital analog mixed signal processing technology, which realizes a wide frequency vibration of 10Hz~10KHz, a vibration amplitude of ±16g, and a working temperature of -40℃~+125℃.

[0049] The waveform processing and analysis module is an integrated single-chip microcomputer, which integrates a piezoelectric film, a signal conversion module, a power supply circuit, a system analysis and calculation CPU and other modules. The piezoelectric film generates an electronic pulse linearly related to the amplitude and wave speed when impacted by the feedback mechanical wave; the electronic pulse is converted into a digital signal through the signal conversion module, and the feedback waveform is calculated by analysis and calculation.

[0050] The sensor built-in waveform processing and analysis module transmits the sensed, collected and calculated data to the cloud 9, and the cloud 9 analyzes and compares the data with the pre-calibrated data to judge whether the detected slurry environment at this time is the pre-calibrated concrete slurry.

[0051] The front of the overfilling detector 3 has a power indicator light, a power switch, a mud calibration button, a concrete calibration button, and an alarm indicator button. Press and hold the mud calibration button or the concrete calibration button to start the calibration. After a period of time, if the green indicator light of the alarm indicator button stays on, the calibration is successful. If the red light of the alarm indicator button stays on, the calibration fails and needs to be recalibrated.

[0052] During the concrete pouring process, when the over-pouring detector 3 detects that the concrete is close to the elevation, the yellow indicator light on the alarm indicator key flashes, accompanied by intermittent buzzing; when the over-pouring detector 3 detects that the concrete has reached the designated position, the green indicator light on the alarm indicator key stays on, accompanied by continuous buzzing; when the over-pouring detector 3 experiences a communication failure or calibration abnormality, the red light on the alarm indicator key stays on.

[0053] Before use, sensor 1 needs to be inserted into the pre-poured concrete. The device is calibrated and recorded when the indicator light flashes and a "beep beep beep" voice prompt is heard. During use, when the poured concrete buries sensor 1, sensor 1 will issue a voice prompt indicating that it has reached the monitoring position, thus realizing on-site grouting control and early warning.

[0054] In this embodiment, there are two methods for installing sensor 1: one is to tie sensor 1 to the hanging bar, the hanging bar extends into the cast-in-place pile and hangs on the steel cage. In this method, the hanging bar only needs to be hung in the steel cage at the corresponding elevation position when the concrete is about to reach the elevation position, which can avoid the power consumption caused by the sensor 1 being turned on for a long time.

[0055] The second method involves connecting sensor 1 to a fixing member 7 via a ring-shaped buckle 6. The fixing member 7 has a cable tie through-hole 7.1, and the lower inner wall of the through-hole 7.1 has a cutting edge 7.2. The fixing member 7 is secured to the reinforcing cage with a cable tie. A limiting device can be installed on the reinforcing cage above the cable tie to prevent it from rising during lifting. During upward lifting, the cutting edge 7.2 cuts the cable tie, thus pulling sensor 1 back. Both methods enable the recyclability and reuse of sensor 1.

[0056] This invention also provides a method for inspecting and monitoring over-pouring in cast-in-place piles, comprising the following steps:

[0057] S1: Place the over-filling detector 3 at the grouting pile; before use, insert the sensor 1 into the pre-filled concrete or grouting pile mud, and calibrate the concrete or mud in advance, that is, the values ​​of the characteristic parameters of the two; when calibrating in advance, it is necessary to ensure that the concrete or mud submerges the sensor 1, and the sensor 1 must not come into contact with metal objects.

[0058] S2: After calibration, concrete is poured. According to the scale on the transmission pull-out line 2, the sensor 1 is lowered to the concrete pouring elevation.

[0059] S3: When the over-pour detector 3 detects that the concrete is close to the elevation, the yellow indicator light of the over-pour detector 3 flashes, accompanied by intermittent beeping, reminding the constructor to slow down the concrete pouring speed;

[0060] S4: When the over-pour detector 3 detects that the concrete reaches the specified position, the green indicator light of the over-pour detector 3 is long on, accompanied by continuous beeping, stopping pouring the concrete, and turning off the over-pour detector 3;

[0061] S5: The sensor 1 is pulled out from the un-solidified concrete in time and cleaned, and the transmission pull wire 2 is cleaned and rewound on the reel 5 after cleaning, completing the pouring work of the concrete.

[0062] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A cast-in-place pile over-pour inspection monitoring apparatus, characterized by: The utility model relates to a kind of sensor, transmission pull line and overfill detector;Sensor (1) includes detection sensor component and oscillation component, oscillation component is used to generate fixed frequency mechanical wave, detection sensor component is used to detect and analyze different feedback waveform, according to the analysis result of different feedback waveform, the medium environment where sensor is located is distinguished, detection sensor component includes tail line tube (1.1) connected in sequence, first nylon piece (1.2), first conducting ring (1.3), second nylon piece (1.4), second conducting ring (1.5), third nylon piece (1.6), tail line tube (1.1) is built-in waveform detection analysis module, waveform detection analysis module is connected with transmission pull line (2);Oscillation component includes high-frequency motor and oscillation blade (1.9), oscillation blade (1.9) is connected with the output shaft (1.71) of high-frequency motor, high-frequency motor is built-in high-frequency vibration sensing module, and the end of high-frequency motor away from oscillation blade (1.9) is connected with third nylon piece (1.6);Sensor (1) is transmitted to overfill detector (3) by transmission pull line (2) and is finally sent to data terminal (4);Two ends of transmission pull line (2) are connected with sensor (1) and overfill detector (3) respectively, overfill detector (3) is installed on reel (5) for pulling and releasing transmission pull line (2), sensor (1) is placed on the position of calibrating concrete height of reinforcement cage, and sensor (1) is bound to hanging reinforcement, and hanging reinforcement is stretched into bored pile and hung on reinforcement cage.

2. The cast-in-place pile over-pour inspection monitoring equipment according to claim 1, characterized in that: The end of motor shell (1.72) of high-frequency motor away from third nylon piece (1.6) is connected with oil seal, and oil seal is movably sleeved on the output shaft (1.71) of high-frequency motor, and oil seal includes oil seal base (1.81), oil seal body (1.82) and oil seal cover (1.83) connected in sequence.

3. The cast-in-place pile over-pour inspection monitoring equipment according to claim 2, characterized in that: The end of tail line tube (1.1) is threadedly connected with the threaded end of first nylon piece (1.2), first conducting ring (1.3) is sleeved on the convex ring of first nylon piece (1.2) and second nylon piece (1.4) abutting, second conducting ring (1.5) is sleeved on the convex ring of second nylon piece (1.4) and third nylon piece (1.6) abutting, and the threaded end of third nylon piece (1.6) is threadedly connected with motor shell (1.72); Motor shell (1.72), oil seal base (1.81), oil seal body (1.82) and oil seal cover (1.83) are connected by long bolt, the connecting place of motor shell (1.72) and oil seal base (1.81) has matching ring and groove structure, the convex ring of oil seal body (1.82) is embedded into the groove body of oil seal cover (1.83), and the end face of oil seal cover (1.83) close to oscillation blade (1.9) is abutted with annular pressing sheet (1.10).

4. The cast-in-place pile over-pour inspection monitoring equipment according to claim 1, characterized in that: The sensor (1) is connected to the fixing member (7) by a ring buckle (6). The fixing member (7) has a cable tie hole (7.1). The inner wall of the lower end of the cable tie hole (7.1) has a cutting blade (7.2). The fixing member (7) is tied to the steel cage by a cable tie. The cable tie can be cut by the cutting blade (7.2) during the upward lifting process, thereby pulling the sensor (1) back.

5. A method for monitoring the over-pouring of a cast-in-place pile, based on a device for monitoring the over-pouring of a cast-in-place pile according to any one of claims 1 to 4, characterized in that, Includes the following steps: S1: Place the over-pouring detector (3) at the grouting pile; before use, insert the sensor (1) into the pre-pouring concrete or grouting pile mud, and calibrate the concrete or mud in advance, that is, the values ​​of the characteristic parameters of the two. S2: After calibration, concrete is poured. According to the scale on the transmission pull line (2), the sensor (1) is lowered to the concrete pouring elevation. S3: During the concrete pouring process, when the over-pouring detector (3) detects that the concrete is close to the elevation, the yellow indicator light of the over-pouring detector (3) flashes and is accompanied by intermittent beeping, reminding the construction worker to slow down the concrete pouring speed. S4: When the over-pouring detector (3) detects that the concrete has reached the designated position, the green indicator light of the over-pouring detector (3) will stay on while accompanied by a continuous beeping sound, stop pouring concrete, and turn off the over-pouring detector (3). S5: Pull the sensor (1) out of the uncured concrete in time and clean it. Clean the transmission pull wire (2) and rewind it onto the reel (5) to complete the concrete pouring work.

6. The method according to claim 5, wherein: In step S1, when performing pre-calibration, it is necessary to ensure that the sensor (1) is submerged in concrete or mud and that the sensor (1) is not in contact with any metal objects.

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