| Title |
An Experimental Study on the Change of Bulking Coefficient of Soils Mixed with Rock Blades |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.5C.193 |
| Keywords |
토량환산계수;L값;C값;토사와 암석 혼합단위중량 bulking coefficient;swelling modulus (L value);shrinkage modulus (C value);soil and rock mixture unit weight |
| Abstract |
Field and laboratory tests were performed to investigate the swelling(L value) and shrinkage modulus (C value) of soil and rock mixtures using 2 sites. According to test results, when disturbed soil and rock were mixed with same amount (5:5), the maximum density was achieved and showed 19% and 18% increased at each site comparing with the unit weight of rock only. Since measured L values of mixtures were overestimated about 4 to 11% compare to estimated values based on the conventional method. While C values were underestimated about 13~20% compare to conventional values due to the development of compacting equipments and effective construction management. When rock and soil were mixed in the ratio of 5 to 5, the unit weight of the mixture was higher than that of other mixtures and rock or soil only. |