CN-121994826-A - Underwater detection method and device for concrete diseases of canal lining

CN121994826ACN 121994826 ACN121994826 ACN 121994826ACN-121994826-A

Abstract

The invention relates to the technical field of underwater detection, in particular to an underwater detection method and device for concrete diseases of canal lining. The underwater concrete disease detection device for the canal lining comprises a fixed frame, a first driving belt, a second driving belt and a blowing assembly. The fixed frame is internally provided with a geological radar, the bottom surface of the fixed frame is provided with a first opening, the first transmission belt is provided with a second opening, the overlapping area of the second opening and the first opening is opposite to the geological radar, the second transmission belt is provided with a plurality of third openings and a plurality of fourth openings, each third opening and each fourth opening are communicated with a through groove, the air blowing assembly outputs high-pressure air to the inside of the fixed frame, and liquid at the bottom of the fixed frame is forced to pass through the overlapping area of the first opening and the second opening and then flows through the third openings or the fourth openings and is discharged from the through grooves. According to the scheme, the air blowing assembly is utilized to discharge liquid between the geological radar and the bottom surface of the channel, so that the detection precision is improved.

Inventors

LI NA
Liu Beide
QIN JIE
ZHANG YUPING
CHU TINGTING
WAN YUANYUAN
WANG KAI
NIU XINWEI
SHANG SHUGUANG
HOU ZHENXI

Assignees

陕西同徽建筑设计有限公司

Dates

Publication Date: 20260508
Application Date: 20260211

Claims (10)

1. An underwater concrete spoil detection apparatus for canal lining, comprising: The device comprises a fixed frame, a plurality of geological radars, a plurality of rectangular first openings, a plurality of rectangular second openings, a plurality of first opening and a plurality of second opening, wherein the fixed frame is in a cylinder shape and is horizontally placed, and the vertical section of the fixed frame is elliptical; The geological radar device comprises a fixed frame, a first driving belt, a geological radar, a second driving belt, a first driving belt and a second driving belt, wherein the first driving belt is rotatably arranged on the inner side of the fixed frame, and the belt surface of the first driving belt is attached to the bottom surface of the fixed frame; The device comprises a fixed frame, a second driving belt, a plurality of first driving belt, a plurality of second driving belt, a plurality of first driving belt and a plurality of second driving belt, wherein the second driving belt is rotatably arranged on the outer side of the fixed frame and is used for driving the fixed frame to move along the direction perpendicular to the axis of the fixed frame; And the air blowing assembly is connected with the side plate and is used for outputting high-pressure air to the inside of the fixed frame, forcing the liquid at the bottom of the fixed frame to pass through the overlapping area of the first opening and the second opening, and then flowing through the third opening or the fourth opening and then being discharged from the through groove.
2. The underwater concrete spoil detection apparatus for canal lining as claimed in claim 1, wherein the outer wall surface of the second belt is provided with a wear-resistant layer.
3. The concrete spoil underwater detection apparatus for canal lining of claim 1, wherein the width dimensions of the first opening and the second opening are uniform.
4. The underwater concrete spoil detection apparatus for canal lining according to claim 1, wherein a plurality of rotatable ball screws and a plurality of first motors for driving the ball screws to rotate are provided between the two side plates, each of the ball screws is screwed with a corresponding one of the geological radars, and the first motors are connected with a driving gear engaged with a driven gear at the end of the ball screw.
5. The underwater concrete spoil detection apparatus for canal lining as claimed in claim 1, wherein the third opening and the fourth opening are each provided obliquely from inside to outside away from the direction of rotation.
6. The underwater concrete spoil detection device for canal lining according to claim 5, wherein the inclination angles of the third opening and the fourth opening are the same and are staggered along the rotation direction of the second driving belt, and after the center line of any one of the third openings extends to the opposite side, the center line of the third opening is clamped and forced to form a symmetrical V-shaped auxiliary line with the center line extension line of the fourth opening which is nearest to the opposite side; The first driving belt and the second driving belt rotate in opposite directions, the first driving belt is longer than the second driving belt, the second driving belt rotates reversely by one circle, the opening width of the V-shaped auxiliary line is formed by rotating the second driving belt reversely, and when the end part of the second opening is overlapped with the first opening in the process of rotating the first driving belt by one circle, the end part of the second opening is overlapped with the convergence end of one V-shaped auxiliary line.
7. The underwater concrete spoil detection apparatus for canal lining as claimed in claim 6, wherein the number of said third openings provided in the opening of one of said V-shaped auxiliary lines is one less than the number of said geological radar.
8. The underwater concrete spoil detection apparatus for canal lining as claimed in claim 6, wherein the end of the second opening is provided with a straight section and the converging ends of the V-shaped auxiliary line are also provided with a space.
9. The concrete spoil underwater detection apparatus for canal lining of claim 1, wherein the air blowing assembly comprises: the air supply device is arranged outside the fixed frame and synchronously moves with the fixed frame; One end of the air supply pipe is connected with the air supply device, and the other end of the air supply pipe is connected with the fixed frame and is used for conveying high-pressure air; The blowing nozzle is communicated with the air supply pipe and is used for spraying high-pressure air into the fixed frame.
10. A concrete spoil underwater detection method for canal lining, characterized by being used for executing the concrete spoil underwater detection apparatus for canal lining as claimed in any one of claims 1 to 9, comprising the steps of: placing the underwater concrete disease detection device for canal lining in a canal to be detected; and controlling the underwater concrete disease detection device for the canal lining to travel along the canal and detecting the bottom surface of the canal.

Description

Underwater detection method and device for concrete diseases of canal lining Technical Field The invention relates to the technical field of underwater detection, in particular to an underwater detection method and device for concrete diseases of canal lining. Background In recent years, although the problem of shortage of water resources in partial areas is solved in large-scale cross-river basin water diversion projects built in China, a plurality of problems still exist in operation, the geological conditions along the channel are one of the problems, various diseases are easily caused by special geological sections, the conditions of cavities, collapse and the like are finally caused under the lining plates of the canal dykes, and the difficulty in channel overhaul is high and the comprehensive detection is difficult. Therefore, it is critical to detect underwater concrete lining and disease underwater. The geological radar detection technology is developed in accordance with the requirements of rapid and accurate nondestructive detection, and has wide application and good effect in the aspects of highway thickness detection, bridge thin surface damage detection, mineral detection and the like. The distribution of underground media is determined by utilizing the propagation rule of ultra-high frequency short pulse electromagnetic waves in different media, the media interfaces with different dielectric constants form an electrical interface, electromagnetic waves are reflected when meeting the interface, and the structure and the distribution of the underwater media can be deduced by receiving data such as time series of reflected waves. However, the dielectric constant of water is large, and most of the electromagnetic waves emitted from the water surface are absorbed. The traditional marine ship carrying ground penetrating radar is greatly influenced by wind waves and water depth, the high-frequency antenna has high resolution but small detection depth, the low-frequency antenna has large penetration distance but low resolution, and radar images cannot be quantitatively analyzed. Disclosure of Invention The invention aims to improve the detection precision of radar on concrete diseases of canal lining. The invention provides an underwater concrete disease detection device for canal lining, which comprises a fixed frame, a first driving belt, a second driving belt and an air blowing component, wherein the fixed frame is in a horizontally placed cylinder shape, the vertical section of the fixed frame is elliptical, two ends of the fixed frame are respectively provided with a side plate, a plurality of geological radars capable of moving along the axial direction of the fixed frame are arranged inside the fixed frame, the bottom surface of the fixed frame is provided with a plurality of rectangular first openings which are opposite to moving paths of the geological radars one by one, the first driving belt is rotatably arranged on the inner side of the fixed frame, the belt surface of the first driving belt is attached to the bottom surface of the fixed frame, the first driving belt is provided with a V-shaped second opening which is connected end to end in the rotating direction, when the first driving belt rotates, the overlapping area of the second opening and the first opening is always opposite to the corresponding geological radars, one side plate is rotatably arranged on the outer side of the fixed frame, one side of the second driving belt is provided with a plurality of uniformly arranged third openings which are arranged along the direction perpendicular to the axis of the fixed frame, the other side of the second driving belt is provided with a plurality of uniformly arranged openings, the fourth openings are arranged on one side of the second driving belt, the second driving belt is communicated with the outer side of the fourth openings through the side plates, and the fourth openings are communicated with the first openings through the outer side of the fourth openings, and the fourth openings are communicated with the corresponding air blowing component through the side openings, and the air opening is arranged on the outer sides of the side of the second driving belt. Further, the outer wall surface of the second transmission belt is provided with a wear-resistant layer. Further, the first opening and the second opening have the same width dimension. Further, a plurality of rotatable ball screws and a plurality of first motors for driving the ball screws to rotate are arranged between the two side plates, each ball screw is in threaded connection with a corresponding geological radar, and the first motors are connected with driving gears which are meshed with driven gears at the tail ends of the ball screws. Further, the third opening and the fourth opening are both obliquely arranged from the inner side to the outer side and away from the rotating direction. Further, the inclination angle