灌砂法在公路路基压实度检测中的应用

Application of Sand Filling Method in Highway Subgrade Compactness Test

本文以某地区的高速公路为例,选择灌砂法进行检测;分析灌砂法总体结构后,选择直径为20 cm的灌砂筒、粒径为0.3~0.6 mm的量砂,按照检测流程计算凿取试坑混合料的湿密度、干密度,最后计算路基压实度完成检测。测试结果显示:运用该方法计算路基土的湿密度、干密度,依据该结果能够获取路基土的压实度,其结果均在93.3%以上,具有路基压实度检测能力。

In this paper,the highway in a certain area is taken as an example,and sand filling method is selected for test.After analyzing the overall structure of the sand filling method,a sand filling cylinder with a diameter of 20 cm and a sand volume with a particle size of 0.3~0.6 mm are selected,the wet density and dry density of the test pit mixture are calculated according to the test process,and the subgrade compactness is calculated to complete the test.The test results show that the method can calculate the wet density and dry density of the subgrade soil,and the compactness of the subgrade soil can be obtained according to the results,and the results are both above 93.3%,which has the ability to test the subgrade compactness.