CN-122017036-A - Grouting fullness measuring device

CN122017036ACN 122017036 ACN122017036 ACN 122017036ACN-122017036-A

Abstract

The application discloses a grouting fullness measuring device, which comprises a sleeve body, wherein an annular ultrasonic sensor array and a resistance chromatography detection electrode are bonded on the outer part of the sleeve body in a nondestructive mode, and data are acquired by using pressure and flow detection components arranged on a special hole site of the sleeve and a slurry inlet pipeline. The data processing module collects multi-source heterogeneous data such as sound, electricity, force and fluid, and is helpful for identifying abnormal grouting states caused by unsmooth exhaust or local blockage through mutual verification among the multi-source detection parameters, so that quantitative evaluation of sleeve grouting fullness is realized. The application overcomes the limitation of a single detection technology, eliminates the detection blind area, and realizes the nondestructive monitoring of the whole grouting process, quantification and high precision of the assembled sleeve.

Inventors

SHUAI WEI
CHEN WEIJIE
LV WEILI
YU YUANHONG

Assignees

浙江省围海建设集团股份有限公司
杭州市富阳区水利水电工程质量安全服务保障中心
建德市水利事业服务中心(建德市水利工程质量安全管理服务中心)

Dates

Publication Date: 20260512
Application Date: 20260415

Claims (15)

1. A grouting fullness measuring device, comprising: The sleeve body is provided with a slurry inlet and an exhaust port on the side wall; The annular ultrasonic sensor array comprises a plurality of ultrasonic sensors, is fixedly attached to the outer surface of the sleeve body and is used for transmitting and receiving ultrasonic signals so as to detect the medium state inside the sleeve body; The resistance chromatography detection electrode is fixed on the outer surface of the sleeve body to form an annular electrode array structure and is used for acquiring conductivity distribution information in the sleeve body; The pressure detection assembly comprises a flexible pressure membrane and a pressure sensor, wherein the flexible pressure membrane is arranged on the cavity wall of the inner cavity of the sleeve body so as to directly bear fluid pressure, and the pressure sensor is arranged outside the sleeve body and is rigidly connected with the flexible pressure membrane through an interface so as to convert mechanical deformation into an electric signal; the flow detection device is arranged on a grouting pipeline connected with the slurry inlet and is used for detecting instantaneous flow data of grouting materials; the data processing module is respectively in communication connection with the annular ultrasonic sensor array, the pressure sensor, the flow detection device and the output signal end of the resistance chromatography detection electrode; The data processing module is configured to reconstruct conductivity distribution in the sleeve body based on boundary voltage data acquired by the resistance chromatography detection electrode and a preset sensitivity matrix to obtain conductivity distribution parameters; and carrying out association fusion treatment on the ultrasonic detection parameters, the conductivity distribution parameters, the pressure detection parameters and the flow detection parameters, and constructing a grouting fullness evaluation model for fusing the multi-source detection parameters.
2. The grouting fullness measuring device of claim 1, wherein the annular ultrasonic sensor array is provided with a plurality of sets along an axial direction of the sleeve body, located in a lower region, a middle region, and an upper region of the sleeve body, respectively.
3. The grouting fullness measuring device according to claim 1, wherein the flexible pressure membrane is sealed and inlaid at a pressure measuring hole site reserved at one side of the grout inlet, so that the inner surface of the flexible pressure membrane is flush with or slightly recessed from the inner wall of the sleeve body.
4. The grouting fullness measuring device according to claim 1, wherein the data processing module is internally integrated with a data acquisition unit, the data acquisition unit injects a weak constant alternating current with high frequency to an adjacent pair of the resistance chromatography detection electrodes, and sequentially measures boundary voltage signals at two ends of the adjacent pair of electrodes with the rest of the adjacent pair of electrodes not injected with current.
5. The grouting fullness measuring device according to claim 4, wherein the data processing module receives the complete boundary voltage measurement vector, and then performs nonlinear inverse problem solving through an iterative reconstruction algorithm by combining injection current distribution and the preset sensitivity matrix to obtain the conductivity distribution parameters inside the sleeve body.
6. The grouting fullness measuring device according to claim 1, wherein the flow detecting device is an electromagnetic flowmeter or an external clamp type ultrasonic flowmeter, and the data processing module receives the instantaneous flow data and performs time integral operation to calculate an accumulated total injection volume in the sleeve body node, and uses the accumulated total injection volume as a flow detecting parameter.
7. The grouting fullness measuring device according to claim 1, wherein the data processing module is internally integrated with a data acquisition unit, a signal processing unit, a data fusion computing unit and a three-dimensional reconstruction module, wherein the output end of the data acquisition unit is connected to the input end of the signal processing unit, and the output ends of the signal processing unit are respectively connected to the input ends of the data fusion computing unit and the three-dimensional reconstruction module in parallel.
8. The grouting fullness measuring device of claim 7, wherein the data processing module calculates grouting fullness via a multi-source data fusion algorithm.
9. The grouting fullness measuring device according to claim 7, further comprising an alarm module and a wireless communication module in communication connection with the data fusion calculation unit, wherein when the data processing module determines that the comprehensive grouting fullness reaches a set qualification threshold and no obvious low conductivity or acoustic impedance abnormal area is detected, the alarm module sends an audible and visual alarm prompt, and the system sends a stop interlocking instruction to the grouting pump through the wireless communication module.
10. The grouting fullness measuring device according to claim 2, wherein the outer side of the sleeve body is matched with the circumferentially distributed resistance chromatography detection electrodes through a plurality of groups of annular ultrasonic sensor arrays axially arranged to form a three-dimensional detection matrix with multiple axial layers covered and circumferentially wrapped so as to eliminate detection blind areas inside the sleeve body.
11. A grouting fullness measuring device, comprising: The sleeve body is provided with a slurry inlet and an exhaust port on the side wall; The annular ultrasonic sensor array comprises a plurality of ultrasonic sensors, is fixedly attached to the outer surface of the sleeve body and is used for transmitting and receiving ultrasonic signals so as to detect the medium state inside the sleeve body; the resistance chromatography detection electrode is fixed on the outer surface of the sleeve body to form an annular electrode array structure and is used for acquiring conductivity distribution information in the sleeve body; the data processing module is respectively in communication connection with the annular ultrasonic sensor array and the output signal end of the resistance chromatography detection electrode; The annular ultrasonic sensor array is provided with a plurality of groups along the axial direction of the sleeve body, and the groups are respectively positioned in the lower region, the middle region and the upper region of the sleeve body to form an axial multi-layer detection section so as to eliminate an axial detection blind area; Each group of the annular ultrasonic sensor array is formed by uniformly distributing a plurality of ultrasonic sensors along the circumferential direction of the sleeve body, and the resistance chromatography detection electrodes are uniformly distributed along the circumferential direction of the sleeve body to form a detection structure which is circumferentially wrapped in a surrounding manner so as to eliminate a circumferential detection blind area; The data processing module is configured to perform association fusion processing on detection results of two different physical mechanisms based on ultrasonic detection parameters acquired by the annular ultrasonic sensor array and conductivity distribution parameters acquired by the resistance chromatography detection electrode so as to eliminate defect types which cannot be effectively detected by a sensor with a single physical mechanism.
12. The grouting fullness measuring device of claim 11, further comprising: The pressure detection assembly comprises a flexible pressure membrane and a pressure sensor, wherein the flexible pressure membrane is arranged on the cavity wall of the inner cavity of the sleeve body so as to directly bear the fluid pressure; the flow detection device is arranged on a grouting pipeline connected with the slurry inlet and is used for detecting instantaneous flow data of grouting materials; The data processing module is also in communication connection with the pressure detection assembly and the output signal end of the flow detection device.
13. The grouting fullness measuring device of claim 12, wherein the data processing module is configured to: And performing correlation analysis on the accumulated injection volume acquired by the flow detection device and the internal pressure change curve acquired by the pressure detection assembly to identify the state of air outlet blockage or slurry leakage.
14. The grouting fullness measuring device according to claim 13, wherein the data processing module is internally integrated with a three-dimensional reconstruction module, wherein the three-dimensional reconstruction module reconstructs conductivity distribution based on boundary voltage data acquired by the resistance chromatography detection electrode, and renders and generates a three-dimensional spatial image of the medium inside the sleeve body so as to eliminate a positioning blind area of defect position information.
15. The grouting fullness measuring device according to claim 11, wherein among the plurality of sets of the annular ultrasonic sensor arrays axially disposed, the annular ultrasonic sensor array located in the lower area is used for detecting an initial slurry filling state in grouting, the annular ultrasonic sensor array located in the middle area is used for detecting a slurry climbing level position during grouting, and the annular ultrasonic sensor array located in the upper area is used for detecting whether final slurry is completely filled near the exhaust port.

Description

Grouting fullness measuring device Technical Field The application relates to the technical field of building construction detection, and particularly discloses a grouting fullness measuring device. Background In the assembled building, the plumpness of the grouting connection of the steel bar sleeve is directly related to the safety and stability of the structure. However, most of the existing detection means are based on a single physical parameter, and have obvious limitations. For example, the embedded sensor method can cause irreversible implantation damage to the structure and is difficult to represent the whole filling condition, the conventional external nondestructive detection (such as traditional ultrasonic waves) is limited by the wall thickness of the sleeve and the acoustic characteristics of the multiphase medium, the detection precision is low and quantitative evaluation is difficult, the industrial CT technology has high precision, but the equipment is expensive and large in volume, the requirement of full detection on a construction site cannot be met, and the final full state inside the sleeve is difficult to truly reflect under the influence of factors such as slurry fluidity and shrinkage by simply relying on a process quantity monitoring method of observing a flowmeter or an exhaust port. The prior art lacks a mechanism for effectively fusing the dynamic parameters and the static parameters in the construction process and carrying out comprehensive and quantitative evaluation based on the multi-source heterogeneous sensor data, so that the detection precision, reliability and spatial resolution are generally insufficient. Disclosure of Invention The invention aims to overcome the defects in the prior art and provides a grouting fullness measuring device. In order to achieve the purpose, the application adopts the following technical scheme that the grouting fullness measuring device comprises: The sleeve body is provided with a slurry inlet and an exhaust port on the side wall; The annular ultrasonic sensor array comprises a plurality of ultrasonic sensors, is fixedly attached to the outer surface of the sleeve body and is used for transmitting and receiving ultrasonic signals so as to detect the medium state inside the sleeve body; The resistance chromatography detection electrode is fixed on the outer surface of the sleeve body to form an annular electrode array structure and is used for acquiring conductivity distribution information in the sleeve body; The pressure detection assembly comprises a flexible pressure membrane and a pressure sensor, wherein the flexible pressure membrane is arranged on the cavity wall of the inner cavity of the sleeve body so as to directly bear fluid pressure, and the pressure sensor is arranged outside the sleeve body and is rigidly connected with the flexible pressure membrane through an interface so as to convert mechanical deformation into an electric signal; the flow detection device is arranged on a grouting pipeline connected with the slurry inlet and is used for detecting instantaneous flow data of grouting materials; the data processing module is respectively in communication connection with the annular ultrasonic sensor array, the pressure sensor, the flow detection device and the output signal end of the resistance chromatography detection electrode; The data processing module is configured to reconstruct conductivity distribution in the sleeve body based on boundary voltage data acquired by the resistance chromatography detection electrode and a preset sensitivity matrix to obtain conductivity distribution parameters; and carrying out association fusion treatment on the ultrasonic detection parameters, the conductivity distribution parameters, the pressure detection parameters and the flow detection parameters, and constructing a grouting fullness evaluation model for fusing the multi-source detection parameters. Further, the annular ultrasonic sensor array is provided with a plurality of groups along the axial direction of the sleeve body, and the groups are respectively positioned in the lower area, the middle area and the upper area of the sleeve body. Further, the flexible pressure membrane is sealed to be inlaid at a pressure measuring hole site reserved at one side of the slurry inlet, so that the inner surface of the flexible pressure membrane is flush with or slightly recessed from the inner wall of the sleeve body. Further, a data acquisition unit is integrated in the data processing module, the data acquisition unit injects a weak constant alternating current with high frequency to a pair of adjacent resistance chromatography detection electrodes, and boundary voltage signals at two ends of the adjacent electrode pairs which are not injected with current are sequentially measured by utilizing other adjacent electrode pairs. Further, after the data processing module receives the complete boundary voltage measurement vector, the inj