民用机场土质区密实度快速检测研究——以广汉机场为例

为了探究使用PFWD在民用机场土质区检测密实度的方法,达到快速检测密实度的目的,根据机场土质区的特点,以广汉机场作为试验场地,结合PFWD对机场土质区填料的动态弹性模量与密实度之间关系进行探究。建立三维有限元模型计算土质区填料不同模量下的力学响应;使用传统方法对PFWD现场测试结果进行验证。研究表明,PFWD测试结果与传统方法实测密实度所得结果之间的相差比较小,PFWD可用于广汉机场土质区密实度快速检测。

Study on Fast Detection of Soil Compactness in Civil Airport: Taking Guanghan Airport as an example

To explore the method of using PFWD to detect the compactness in the airport soil area, and achieve the purpose of fast detection of compactness, according to the characteristics of the airport soil area, Guanghan Airport was taken as the test site, and the relationship between the dynamic elastic modulus and the compactness of the filler in the airport soil area was explored combined with PFWD. A three-dimensional finite element model was established to calculate the mechanical response of fillers under different moduli. The PFWD field test results were verified by using traditional methods. The results show that the difference between PFWD test results and those of traditional method was relatively small, and PFWD can be used for the rapid detection of soil density in Guanghan airport.