| Title |
Mechanical Properties of Filling Materials for Bored Pile in Rock |
| Authors |
문경태(Moon, Kyoungtae) ; 박상렬(Park, Sangyeol) ; 신민건(Shin, Mingun) |
| DOI |
https://doi.org/10.12652/Ksce.2017.37.4.0637 |
| Keywords |
매입말뚝;주면고정액;배합비;압축강도;시멘트풀;모르타르 Bored pile;Filling material;Mix proportion;Compressive strength;Cement paste;Mortar |
| Abstract |
Jeju Island is composed of irregular volcanic rock layers formed by several volcanic activities. Since structure such as the offshore wind turbine has to support considerably large over turning moment due to long distance from foundation to load point and relatively large horizontal load. Pile foundations are needed to economically support such structure even in the case of rock layer. Therefore, in this study, mechanical performances are estimated by mixing ratio of water, cement, and sand to figure out optimal mixing ration of filling material for pile penetrated to rocky layers, and outcomes of this study are compared and analyzed with results of other researches. In the same conditions, mechanical performances of the mortar (S/(S+C)=20~40%) are better than those of cement paste and soil cement. On the basis of major outcome of this study, appropriate range of mixing and a strengthening model are suggested. |