基于重锤式弯沉仪法的飞机跑道道面承载能力测试分析

Test Analysis on Bearing Capacity of Runway Pavement Based on HWD

为了对云南某机场跑道的承载能力进行分析评定,采用重锤式弯沉仪法(Heavy Weight Deflectometer,HWD)分析了机场跑道不同分区的冲击劲度模量ISM、接缝传荷能力、道面脱空和道面PCN。结果表明:西跑道沥青道面的承载能力稍高于东跑道;跑道水泥混凝土道面区的传荷系数波动较大,传荷性能存在不同程度的下降,综合评价为“好”;跑道道面脱空程度为中度脱空,不存在严重脱空;机场跑道水泥混凝土区域道面通报PCN为110/R/B/W/T,沥青道面区域通报PCN为114/F/B/W/T。

In order to analyze and evaluate the carrying capacity of an airport runway in Yunnan Province,the impact stiffness modulus,joint load transfer efficiency,void beneath slab and runway PCN in different zones of the runway were analyzed by Heavy Weight Deflectometer(HWD).The results show that the bearing capacity of asphalt pavement of the western runway is slightly higher than that of the eastern runway.The load transfer coefficient fluctuates greatly in the cement concrete pavement area of the runway,and the load transfer efficiency decreases in different degrees,and its comprehensive evaluation index was good.The void of Runway is moderate,there is no serious void;The PCN for the concrete pavement area of the airport runway was 110/R/B/W/T,while the PCN for the asphalt pavement area was 114/F/B/W/T.