CN211905207U

CN211905207U - Bridge pier underwater detection system

Info

Publication number: CN211905207U
Application number: CN202020027146.6U
Authority: CN
Inventors: 殷勇勤; 张翔; 孙鹏
Original assignee: Shanghai Ruiyang Ship Technology Co ltd
Current assignee: Shanghai Ruiyang Ship Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-11-10
Anticipated expiration: 2030-01-07

Abstract

The utility model provides a bridge pier underwater detection system, including scan sonar, sonar support, positioner, scan sonar data reception processing end, work ship under water, the work ship passes through the umbilical cable and links to each other with scan sonar under water: the scanning sonar probe can rotate 360 degrees underwater, controls the sonar scanning direction through the underwater remote control device, and returns sonar scanning data in a fixed sonar data packet format; the positioning device is used for determining the specific position of the scanning sonar. The utility model discloses a detection of bridge aquatic abutment provides a method, and this method has advantages such as the location is accurate, scanning range is wide, the scanning precision is high, can adapt to certain rivers environment moreover, and partial detection under water in the various bridge abutments of application that can be extensive.

Description

Bridge pier underwater detection system

Technical Field

The utility model relates to a bridge pier detection area specifically relates to a bridge pier underwater detection system.

Background

The bridge pier foundation is an important component of a bridge, and the health condition of the bridge pier foundation directly influences the safety of the bridge. In the maintenance period of the bridge, for the bridge crossing a river or sea, how to ensure the health of the foundation of the bridge abutment positioned under water is a problem faced by most bridge management and maintenance units. After the bridge is operated for a period of time, diseases such as foundation emptying, inclination, sinking, concrete erosion, abrasion, damage, exposed ribs, corrosion, mud inclusion, cracking, hole shrinkage and the like often occur due to poor pouring quality of foundation concrete or long-term washing of running water. These hazards can all affect the normal use of the bridge. At present, the detection of the foundation of the underwater abutment of the bridge in China is still in the starting stage, and no forming detection method is available. The detection method is usually implemented by using divers to launch water and performing detection through touch, observation and other means, and the detection personnel judge the underwater structure, diseases and defects of the bridge according to the description of the divers. However, the method has high requirements on the water environment, and the efficiency of the method is low and is not intuitive under the conditions of large water flow and turbid water. With the increase of cross-river and cross-sea bridges in China, an efficient method for detecting the erosion of underwater piers and foundations of the bridges and the appearance defects of structures is urgently needed, and the method is also an important content of bridge detection.

The invention with the application number of 201910244347.3 discloses an underwater drilling tool attitude detection system, which comprises a tunneling mechanism, a power lifting mechanism arranged on the ground and used for lifting and placing the tunneling mechanism, and an operation control system used for controlling the operation of the mechanisms, wherein the tunneling mechanism comprises a tunneling rack, the outer end part of the tunneling rack is in sliding guide fit with a chute type anti-torque device fixedly arranged on the wall of a vertical shaft well, a main driving device is arranged on the middle part of the tunneling rack, the main driving device is connected to a drilling arm positioned below the tunneling rack, and at least two auxiliary driving devices arranged on the drilling arm are connected with a drilling tool positioned below the drilling arm; two inclination angle sensors are horizontally installed on the tunneling rack, a plurality of first position sensors are uniformly distributed on the drill arm, a plurality of second position sensors are uniformly distributed on the drilling tool, and the inclination angle sensors, the first position sensors and the second position sensors are all connected with an operation control system. The invention has high sensitivity, extremely low power loss and strong anti-interference performance, and can well meet the field use requirement. But the scheme has complex structure and inconvenient operation.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a bridge pier underwater detection system.

According to the utility model provides a pair of bridge pier underwater detection system, including scanning sonar, sonar support, positioner, scanning sonar data reception treater and work ship, wherein:

the scanning sonar is arranged on the sonar bracket;

the sonar bracket is connected with the working ship through an umbilical cable;

the positioning device and the scanning sonar data receiving processor are arranged on the work ship; the scanning sonar data receiving processor is in communication connection with the scanning sonar through an umbilical cable.

Preferably, the sonar support comprises a horizontal support, a hanging ring is arranged on the horizontal support, and the umbilical cable is connected with the scanning sonar through the hanging ring.

Preferably, the horizontal support is mounted on the tripod, and the horizontal support is connected with a flange plate of the tripod.

Preferably, the sonar support comprises a vertical support, a hanging ring is arranged on the vertical support, and the umbilical cable is connected with the scanning sonar through the hanging ring.

Preferably, the vertical support is mounted on a tripod and the vertical support is connected to a flange of the tripod.

Preferably, the tripod is a detachable tripod.

Preferably, the bottom of the vertical bracket is provided with a flow resisting weight block.

Preferably, the probe of the scanning sonar is capable of 360 ° rotation.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model has wide detection range, and can realize 360-degree dead-angle-free sweeping and measuring of the underwater bridge pier by adjusting the sonar installation mode and the sonar probe direction; the detection result is visual, and the conditions of the appearance of the bridge abutment, whether the foundation is washed or not and the like can be easily distinguished from the image data obtained by scanning sonar;

2. the utility model has less requirements on the water environment for detection and less influence on the working of scanning sonar in a water mixing state;

3. the utility model discloses a sonar installing support has certain anti-flow effect, can ensure that the scanning sonar normally works under certain rivers condition.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of a scanning sonar and a sonar mounting bracket of the system of the present invention;

fig. 2 is a schematic view of horizontal installation of scanning sonar in the system of the present invention;

fig. 3 is a schematic view of the vertical installation of scanning sonar of the system of the present invention;

fig. 4 is a schematic view of the system of the present invention for laying the scanning sonar and the sonar bracket;

fig. 5 is the utility model discloses scanning sonar surveys the schematic diagram to the bridge scanning in the system.

The figures show that:

scanning sonar horizontal mounting bracket 1

Scanning sonar probe 2

Detachable tripod 3

Scanning sonar vertical mounting bracket 4

Tripod fixed diagonal rod 5

Anti-flow balancing weight 6

Lifting ring 7

Horizontal mounting bracket fastening bolt 8

Working ship 9

Positioning device 10

Umbilical cable 11

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As fig. 1 to 5, according to the utility model provides a bridge abutment underwater detection system, including scanning sonar, sonar support, positioner, scanning sonar data reception treater and work ship, wherein: the scanning sonar is arranged on the sonar bracket; the system is used for scanning the pier part of the underwater bridge and returning sonar scanning data by using fixed sonar data; the sonar bracket is connected with the working ship through an umbilical cable; the sonar bracket is used for fixing the scanning sonar on the bracket and can ensure the safety of the sonar in water. According to the characteristics of the scanning sonar, the mounting bracket designs a horizontal and vertical mounting method for the scanning sonar, provides a direction-adjustable function, and enlarges the range of the scanning sonar for scanning the bridge abutment; the positioning device and the scanning sonar data receiving processor are arranged on the work ship; the positioning device is used for providing detailed geographic positions for the scanning sonar. The scanning sonar data receiving processor is in communication connection with the scanning sonar through an umbilical cable. And the scanning sonar data receiving and processing end is used for receiving sonar data of the scanning sonar bridge abutment, and remotely controlling and adjusting the direction of the scanning sonar probe according to the returned data. The working ship is used for moving the scanning sonar to the position near the bridge, is connected with the scanning sonar through an umbilical cable, and is used for putting the scanning sonar to the water bottom and anchoring the scanning sonar until the scanning work is finished after the scanning sonar is moved to a reasonable position.

Fig. 1 is a perspective view of a scanning sonar mounting method and scanning sonar rack of the system of the present invention. In fig. 1, a scanning sonar horizontal mounting bracket 1 and a scanning sonar vertical mounting bracket 4 may be simultaneously mounted on a tripod 3. Of course, the two installation methods can be separated and independently installed, namely, only the horizontal installation support or only the vertical installation support is installed, and the installation method needs to be determined according to the size and the detection range of the underwater part of the bridge abutment. Because the scanning sonar probe 2 can perform 360-degree rotary scanning, the underwater abutment side emphasis points of the bridge scanned by the horizontally-installed scanning sonar are different from those scanned by the vertically-installed scanning sonar. The horizontally installed scanning sonar has a wide scanning range in the vertical direction of the underwater abutment of the bridge and can form a diagram visually, and the vertically installed scanning sonar has a wide scanning range in the horizontal direction of the underwater abutment of the bridge and can form a diagram on the bottom materials around the abutment in more detail. In the actual detection process, the scanning sonar needs to be horizontally installed or vertically installed according to the detected side emphasis.

Fig. 2 is a perspective view of the scanning sonar horizontal mounting bracket of the present invention. In fig. 2, the scanning sonar is fastened in the sonar protection device by fastening bolts 8 and is fixed with a flange plate on the tripod by the fastening bolts 8. The umbilical cable 11 is connected with the scanning sonar through the suspension ring 7 and plays a role of lifting.

Fig. 3 is a perspective view of the scanning sonar vertical mounting bracket of the present invention. In fig. 3, the scanning sonar is fastened in the sonar protection cage by fastening means and is fixed with a flange on the tripod by fastening bolts. The mass of the anti-current balancing weight 6 is about 3KG, and the anti-current balancing weight is vertically hung below the sonar protection cage to ensure that the scanning sonar keeps a vertical state.

Fig. 4 is the utility model discloses a scanning sonar and sonar support arrangement perspective view among bridge pier underwater detection system. In fig. 4, a work ship 9 carries a detection system and detection personnel to reach a specified bridge abutment detection area, and a scanning sonar and a mounting bracket are arranged at a proper position and a proper sonar mounting mode (taking vertical mounting of the scanning sonar as an example in the figure) is selected according to the detection content. After reaching the designated position, starting to lay scanning sonar and a bracket, accurately recording the laying position through a positioning device 10, and connecting the working ship through an umbilical cable; the detection personnel adjust the scanning position of the scanning sonar probe through sonar scanning data transmitted back by the umbilical cable and judge the health condition of the bridge abutment according to the sonar scanning image.

Fig. 5 is the utility model discloses scanning sonar surveys the schematic diagram to bridge pier in the system. In fig. 5, the scanning sonar is vertically installed on the sonar bracket, the vertical opening angle of the probe of the scanning sonar is 30 degrees, the probe gradually scans the underwater part of the bridge abutment in a stepping mode, and after the scanning at the current position is finished, the scanning position needs to be changed to the scanning blind area to continue scanning until the detection on the periphery of the bridge abutment is finished.

The utility model has wide detection range, and can realize 360-degree dead-angle-free sweeping and measuring of the underwater bridge pier by adjusting the sonar installation mode and the sonar probe direction; the detection result is visual, and the conditions of the appearance of the bridge abutment, whether the foundation is washed or not and the like can be easily distinguished from the image data obtained by scanning sonar; the requirement on the water environment is low, and the influence on the working of scanning sonar is low in a water mixing state; just the utility model discloses a sonar installing support has certain anti-flow effect, can ensure that scanning sonar normally works under certain rivers condition.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. The utility model provides a bridge pier underwater detection system which characterized in that, includes scanning sonar, sonar support, positioner, scanning sonar data reception treater and work ship, wherein:

the scanning sonar is arranged on the sonar bracket;

2. The underwater bridge abutment detection system of claim 1, wherein the sonar support comprises a horizontal support, a hanging ring is arranged on the horizontal support, and the umbilical cable is connected with the scanning sonar through the hanging ring.

3. The underwater bridge abutment detection system of claim 2, wherein the horizontal support is mounted on a tripod, and the horizontal support is connected to a flange of the tripod.

4. The underwater bridge abutment detection system of claim 1, wherein the sonar support comprises a vertical support, the vertical support is provided with a hanging ring, and the umbilical cable is connected with the scanning sonar through the hanging ring.

5. The underwater bridge abutment detection system of claim 4, wherein the vertical support is mounted on a tripod, and the vertical support is connected to a flange of the tripod.

6. The bridge abutment underwater detection system of claim 3 or 5, wherein the tripod is a detachable tripod.

7. The underwater bridge abutment detection system of claim 4, wherein a flow resisting counter weight is arranged at the bottom of the vertical support.

8. The bridge abutment underwater detection system of claim 1, wherein the probe of the scanning sonar is capable of 360 ° rotation.