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김수삼(Soo-Sam Kim),김병일(Byung-ll Kim),한상재(Sang-Jae Han),신현영(Hyun-Young Shin) 한국철도학회 2002 철도저널 Vol.5 No.2
Recyclillg of dredged soils as construction materials is experimently discussed in this paper. The strength of light-weighted soils(LWS) consisting of expanded polystyrene(EPS), dredged soils and cement is characterized by uniaxial and triaxial compression tests with varying initial water contents of dredged soils, the EPS volume and cement contents, and expanded ratio of EPS. Test results show that the strength of light-weighted soils increases with adding cement contents, whereas the strength increases with decreasing initial water contents of dredged soils and expanded ratio of EPS. It was, however, found that increasing the EPS volume makes a lower the strength of light-weighted soils.
Tunnel 上部地盤의 基礎 支持力과 沈下에 關한 硏究
김수삼(Soo-Sam Kim),정승용(Seung-Yong Jung),김용수(Yong-Soo Kim),권태창(Tae-Chang Kwon) 한국철도학회 1999 철도저널 Vol.2 No.4
When a foundation on the ground with tunnel is constructed, the ultimate bearing capacity of a footing is reduced by tunnel. In practice, structure may have a considerable damage because of large settlement. This study shows that the settlement which is caused by variety of the ultimated bearing capacity leads fatal damages to the footing above tunnel. Therefore, it is necessary to study on the reduction both of the ultimate bearing capacity which leads a failure and of tolerable settlement which satisfies the safety of the building. For this reason, the variety of ultimated bearing capacity was analyzed using two-dimensional elasto-plastic finite difference method in this paper. As a result, bearing capacity of the foundation above tunnel should be determined after establishing limit of allowable settlement and considering reduction-ratio of bearing capacity.