Abstract
In order to design the foundations of large scale structure, first we cleared mechanical properties on layered sedimentary soft rocks based on laboratory and in-situ tests. Then we showed that results of in-situ tests can be simulated by using properties obtained from laboratory tests. Next we analyzed the main factor of scale effect between the loading plate size of in-situ tests and real structure size. As a result of numerical analysis considering this main factor, deformation modulus was larger as the loading plate size was larger and scale effect concerned with shear strength properties did not appear in the scope of this examination. According to these examination, we verified rational and reliable properties on layered sedimentary soft rocks for the foundations of large scale structure.
