| Summary: | 碩士 === 國立臺北科技大學 === 土木與防災研究所 === 99 === Most domestic airports runways and taxiways are rigid pavement. Rigid pavement is better than the flexible pavement in shear capacity, weather resistance, longer service life and lower maintenance cost. However, after the use of rigid pavement for some times, the covered layer of fine material can becomes empty, infill with rainwater and moreover, the impact of aircraft overload leads to problems of surface cracking or breaking. Once the pavement surface cracks without timely maintain, the stability, bearing capacity and shock resistance will decrease. The safety of navigation will be impacted. Continued economic growth in recent years, due to the increasing number of flights and passenger capacity, a overall renovation will seriously affect the company operation and it is costly; therefore, by the grouting under concrete pavement to strengthen the its bearing capacity, and extend the forum life is to reduce the waste of resources and expenses.
If it could be detected according to empty situation of lower pavement layer at first and it can be effectively filling the pavement and strengthening the capacity. In this study, the researcher mainly focuses on ground-penetrating radar of non-destructive testing to the holes and water accumulations of the rigid pavement of air lanes and then obtains the location of holes and processing the falling weight deflectometer method. Then researcher matches the deflection value of the falling weight deflectometer with the results of emoticons of ground-penetrating radar in seeing differences. According to the location of holes that are obtained by round-penetrating radar and setting the filling holes then researcher carries on the grouting under the pavement. After grouting is completed, researcher will go through several testing of ground-penetrating radar and falling weight deflectometer for the detection of holes. And the researcher will synchronous cross-compare the results of deflection value of the falling weight deflectometer and the amount of slurry filling into the holes in verifying the feasibility of ground-penetrating radar testing in the rigid pavement.
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