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Pavement deflection automatic detection device based on Benkelman beam method

An automatic detection device and road surface deflection technology, applied in roads, roads, road repairs, etc., can solve problems such as high labor costs, achieve the effects of easy handling and transfer, reduce labor costs, and avoid data forgery

Active Publication Date: 2018-07-20
JIANGSU HENGDA ENG TESTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the deflection detection process requires the cooperation of multiple people. At least one person is required to drive as the driver, and one person is required to wave the flag to direct the driver to drive. It also requires personnel to arrange Beckman beams, read dial indicator readings, and measure ground temperature. The labor cost required for detection stay high

Method used

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  • Pavement deflection automatic detection device based on Benkelman beam method
  • Pavement deflection automatic detection device based on Benkelman beam method
  • Pavement deflection automatic detection device based on Benkelman beam method

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Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0041] An automatic detection device for pavement deflection based on the Beckman beam method, such as figure 1 As shown, it includes a rigid support 1, the front end of the rigid support 1 is provided with a pair of rotatable connecting arms 2, and a camera 17, and the rear end of the rigid support 1 is also provided with a pair of rotatable connecting arms 2 and a tubular handle 3, The bottom of the rigid support 1 is provided with a roller 4, and the upper part is provided with a display screen 8 connected to the camera 17. Two Beckmann beams 19 are respectively connected to the connecting arms 2 protruding from the left and right sides of the rigid support 1. It is connected with a dial indicator 6 for measuring the height change of the Beckmann beam 19 position.

[0042] Such as figure 2 As shown, a hydraulic cylinder 5 is fixed at the center of the r...

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Abstract

The invention relates to the technical field of civil engineering and construction detection, in particular to a pavement deflection automatic detection device based on a Benkelman beam method. The pavement deflection automatic detection device based on the Benkelman beam method comprises a rigid bracket with rollers. Connecting arms for connecting a Benkelman beam are arranged on both sides of the rigid bracket. Hydraulic cylinders for pressing down the Benkelman beam are fixed to the connecting arms. Dial gauges which abut against the Benkelman beam are arranged on the connecting arms. A pair of connecting arms are correspondingly arranged on the front and rear ends of the rigid bracket. The connecting arms are connected with the rigid bracket in a pivoted mode. A linkage mechanism is fixedly arranged on the rigid bracket, and the linkage mechanism comprises an executive element and a connecting rod, and the executive element is connected with the connecting rod. The opposite ends ofa pair of connecting arms are connected with the connecting rod in a pivoted mode. According to the pavement deflection automatic detection device based on the Benkelman beam method, the Benkelman beam can be moved and placed through single-person operation, and a measuring head can be placed in front of the center of a wheel gap about 3-5cm in the standard requirement, so that the manual quantity is reduced, and the working efficiency is improved; and the random error, the system error and the like in the measurement process can be effectively reduced, and the authority of the detection datais strengthened.

Description

technical field [0001] The invention relates to the technical field of civil and construction engineering detection, in particular to an automatic detection device for road surface deflection based on the Beckman beam method. Background technique [0002] The deflection value of the pavement refers to the vertical deformation of the pavement under the action of the wheel load. It is an index reflecting the strength of the pavement. The thicker the pavement structure, the higher the strength of the pavement material or roadbed, the smaller the deflection value, and vice versa The larger the deflection value is. [0003] The Beckman beam road deflection meter is made by the principle of leverage, and is used to measure the road deflection value between the two wheels of the rear axle of the car. The pavement forms local subsidence under the action of load, and the shape reflected by the pavement is a basin with the load point as the center, which is called a deflection basin....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/01
CPCE01C23/01
Inventor 李立新缪昌青陈小欣孙栋蒋平王娟练微朱正宏洪峰
Owner JIANGSU HENGDA ENG TESTING CO LTD
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