Correlation between Pavement Distress and Structural Hidden Distress
The hidden distress in the pavement structure does great harm to the performance and service life of the road.In this work,based on the statistical idea of pavement distress rate in the Highway Performance Assessment Standards(JTG 5210-2018),an index of characterizing hidden distress in the pavement structure,namely pavement structure distress rate,was proposed.Based on the actual highway inspection project,the pavement distress and the hidden distress in the depth of 1 m below the pavement of a two-way four-lane highway with a length of 38 km were studied.The overall situation of pavement distress and hidden distress and their spatial distribution were analyzed statistically by a pile interval of 100 m.The correlation between pavement distress rate and pavement structure distress rate was further explored.The results show that when the pavement distress is severe,there is a strong correlation between the pavement distress rate and the pavement structure distress rate.When the pavement distress index is low,internal hidden distress will also increase accordingly.At this time,there may be an accompanying relationship between the apparent and hidden distress of the pavement.In addition,with the gradual deepening of the occurrence of hidden distress,the associated pavement distress is more likely to occur.
hidden distress of pavementpavement distressassociation studyground penetrating radar
NETL
NSTL
万方数据
