Application of In-Situ Testing Methods for Bearing Capacity of Railroad Roadbed

초록

The field plate load test(PLT) provides a method for determining elastic modulus of bearing ground since it measures both plate pressure and settlement. However, because the field plate load test is expensive and takes a lot of time for operation, it is very difficult to obtain the test characteristics of railroad roadbed in detail. For faster and economical operation, the Light Falling Weight Deflectometer (LFWD) has been used for estimating the bearing capacity of railroad roadbed. The objective of this study is to determine the relationship between the tests (i.e., PLT and LFWD) of the railroad roadbed in Korea. The LFWD tests for railroad roadbed materials were performed to evaluate of roadbed stiffness.