Plug-in Automatic Measuring Device for Road Pavement Pavement Thickness

Abstract

The invention belongs to the field of road construction quality control, and provides a device capable of realizing the automatic high-precision and real-time measurement on the highway pavement paving thickness. The real-time measurement of the pavement paving thickness can be realized, and measurement information can also be sent to a database in a remote way for subsequent quality assessment application and is used as the basis for relevant departments to realize paving quality management. Therefore, the invention has the technical scheme that a highway pavement paving thickness plug-in automatic measuring device comprises a measurement platform trolley, a paving thickness measuring module, GPS real-time positioning module, an integrated controller module, a DTU (date transfer unit), a database and a server module. The automatic measuring device is mainly applied to road construction quality control.

Description

technical field [0001] The invention belongs to the field of road construction quality control, and in particular relates to an automatic measuring device for the paving thickness of pavement structure layers in the paving process of high-grade highway pavement. [0002] technical background [0003] During the pavement construction of high-grade highways, effectively controlling the pavement thickness is the key to improving the durability of the road and ensuring the quality of the road construction. In road construction, the method of drawing steel wires, erecting balance beams and sensors is often used. [1-4] Control over pave thickness. For the steel wire drawing method, since the control points of the fixed steel wires have a certain distance interval, it is often difficult to accurately control the paving thickness between the control points. For the method of erecting a balanced beam, it is assumed that the elevations of the bottom of the structural layer (paving ba...

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Problems solved by technology

In this way, on the one hand, it is impossible to obtain the absolute position coordinates corresponding to the measured pavement thickness; on the other hand, the detection device must be kept moving forward in one direction during the detection process, otherwise the measured value will accumulate from the initial measurement point. The distance does not reflect the real relative distance between the detection device and the initial measuring point, so these methods cannot intuitively and accurately indicate the absolute position of the pavement when the pavement thickness is unqualified

In addition, due to the heavy weight of the vehicle body used by this type of detection device or the lack of special treatment for the wheels and tires, it is easy to sink or soften on the newly paved high-temperature asphalt concrete pavement, so it cannot be applied to detect the newly paved asphalt concrete pavement, resulting in these methods only It can be applied to the detection of the pavement thickness after compaction and cooling, so it is not easy to realize the timely control and adjustment of the pavement thickness during the pavement paving process

[0005] According to the "Highway Engineering Quality Inspection and Evaluation Standard" (JTGF80 / 1-2004), the traditional manual detection of pavement thickness usually uses the random inserting method [8-10] , but because of the low detection frequency and poor representativeness of this method, it cannot objectively reflect the paving thickness of the entire construction pavement, and this method is greatly affected by human factors, and the detection results may contain large errors

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