철도 성토재료의 침하 특성 평가

초록

Recently, the new railway is mostly constructed in a concrete slab track whose maintenance cost is relatively lower. In the case of concrete slab track, the allowable settlement is about 30mm. Therefore, a lot of attention is required for a settlement of the earthwork(reinforced trackbed, upper subgrade, under subgrade) under the track. To this end, more experimental data should be accumulated through the tests for these materials. In this study, we evaluate the long-term settlement of reinforced trackbed materials by influencing factors such as repeated load, water content and grain size distributions using large triaxial test and large oedometer test.