风化弱软化岩石引致边坡失稳案例探讨－以水琏砾岩边坡为例.PDFVIP

風化弱軟化岩石引致邊坡失穩案例探討－ 以水璉礫岩邊坡為例 Slope instability associated with rocks weakening and softening caused by weathering－An example of Suilien Conglomerate slope 1 2 3 4 5 1 2 3 4 5 L.L. Chueh P.C. Chan T.T. WANG Wei LO T.H. Ueng In nature, weathering made rocks to have a lower strength and greater deformation . Therefore, it is an important factor which needs to be considered for designing a safe engineering structure. However, there is no systematic study has been done for measuring the influence of the degree of weathering on the structures stability. In this study, the primary focus has been put on one of the Suilien Conglomerate slope in the Coastal Range of eastern Taiwan. This article investigates the variation of the mechanical and the microscopic properties after the weathering process on the conglomerate. The effect of these parameter s on slope stability was discussed. By using artificial weathering circulations test on rapidly changing environmental moistures to found out the rock slake-durability index, uniaxial compressive strength , p oint load strength and apparent fr iction angle on different weather ing degree. Testing result s shows that the strength, slake-durability index of conglomerate decreases with the increase of the number with weathering cycles. The stren