실내 재하 시험을 통한 철도 노반의 지지력 추정을 위한 매개변수 평가

초록

In order to evaluate the compaction of subbase of railroad track, repeated load test following the specification by DIN 18134 is often used in field. However previous estimation of the soil in the laboratory tests are not established yet whereas estimation of compaction of road subbase through laboratory test are well established. Therefore in this research lab. tests using CBR rod with various mold sizes are performed for establishing the relationship between lab test and field test. Various factors such as mold size, moisture content and density of soil are considered for the evaluation of deformation modulus.