Highway engineering pavement automatic loading and unloading-type drilling core thickness measurement evaluation device and method

Abstract

The invention discloses a highway engineering pavement automatic loading and unloading-type drilling core thickness measurement evaluation device and method. The device comprises a pull ring, a transport vehicle and a cantilever crane which is installed on the transport vehicle and used for automatically loading and unloading a core drilling machine. The method comprises the following steps: 1, setting highway engineering pavement sampling points, and installing the pull ring; 2, measuring the thickness of a pavement core sample; 3, completing drilling core sampling and thickness measurement on the pavement at all highway engineering pavement sampling point positions; 4, calculating the average thickness of all pavement core samples; 5, calculating a thickness representative value of the pavement core samples; 6, judging whether the thickness representative value of the pavement core samples meets the design requirement or not; and 7, judging whether the thickness of a jth pavement core sample is qualified or not, and calculating the percent of pass of highway engineering pavements. The cantilever crane is installed on the transport vehicle, automatic loading and unloading of the core drilling machine are achieved, the structure of a drilling barrel is modified, the thicknesses of the core samples are automatically calculated through the process of lifting the core samples, time is saved, and errors caused by manual measurement are avoided.

Description

technical field [0001] The invention belongs to the technical field of automatic loading and unloading type drill core thickness measurement and evaluation technology for highway engineering pavement, and in particular relates to an automatic loading and unloading type drill core thickness measurement evaluation device and method for highway engineering pavement. Background technique [0002] The core drilling machine, the full name of the drilling core machine, is used to collect road surface sample cores. The core drilling machine is powered by a gasoline engine to drill cement concrete, asphalt and other road surfaces to obtain road surface core samples. In recent years, core drilling machines have been widely used as coring devices in the field of road section thickness safety assessment. However, in the actual application process, since the mass of the core drilling machine is between 160kg and 200kg, although it can easily walk on the road, it needs 3 to 5 constructio...

AI Technical Summary

Problems solved by technology

But in the actual application process, since the mass of the core drilling machine is between 160kg and 200kg, although it can easily walk on the road, it needs 3 to 5 construction workers to load and unload it from the equipment truck, which is time-consuming and laborious.

In addition, after the core drilling machine drills the pavement core sample, the surveyor needs to take out the pavement core sample first. When obtaining the thickness of the pavement core sample, the surveyor needs to use a ruler to measure the pavement core sample. The thickness of pavement core samples often has a large error

And in the follow-up calculation and evaluation, calculation personnel are required to summarize the data and use a series of formulas to obtain the results. Due to cumbersome calculations, the efficiency is low, which affects the evaluation of road surface thickness

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