Browsing by Author "SU, CS"

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AN ESTIMATION OF GROUND SETTLEMENT DUE TO SHIELD TUNNELING BY THE PECK-FUJITA METHOD
(1994-06-01)
FANG, YS
;
LIN, JS
;
SU, CS
;
交大名義發表
;
土木工程學系
In this paper, an empirical method based on Peck and Fujita's study is proposed to estimate the magnitude and extent of surface settlement associated with shield tunnelling. It is found that the ground-settlement curves calculated with the proposed method for various types of shields, ground conditions, tunnel diameters, and depths are in reasonably good agreement with field measurements. For open shields tunnelled through clayey soils, the stability ratio has a significant influence on the surface settlement induced. Field measurement data suggest that the Peck-Fujita method may be used to estimate the ground subsidence associated with the construction of parallel tunnels.
COMPOSITION AND CHEMICAL-REACTIONS OF TITANIUM-OXIDE FILMS DEPOSITED BY LASER EVAPORATION
(1991-03-15)
DAI, CM
;
SU, CS
;
CHUU, DS
;
電子物理學系
;
光電工程學系
Thin films were deposited on Pyrex glass substrates from Ti and TiO2 targets at room temperature by laser evaporation technique. These films were characterized by scanning electron microscopy, Auger electron spectroscopy, and depth profile analysis. The films deposited from Ti target are TiC(x) and TiO(y) matrix, while films from TiO2 target are almost stoichiometric in oxygen. The films have a smooth surface morphology under a laser power density of 5 X 10(6) W/cm2, which is close to the critical intensity for evaporation. The interface reaction of these films is strong, and the Ti atoms diffuse into the substrate.
GROWTH OF HIGHLY ORIENTED TIN OXIDE THIN-FILMS BY LASER EVAPORATION DEPOSITION
(1990-10-29)
DAI, CM
;
SU, CS
;
CHUU, DS
;
電子物理學系
;
光電工程學系