CAJ | 학술논문

砂质板岩在怀通高速公路分布极为广泛。砂质板岩在水的作用下，极易发生崩解和软化，进而出现强度降低。针以怀通高速公路24标边坡全、强、中和弱风化砂质板岩为研究对象，进行了崩解特性、软化、无侧限压缩、剪切渗透性的系列试验，揭示了砂质板岩受的水理特性。研究表明：①砂质板岩具备强烈崩解特性。砂质板岩揭露遇水后，快速发生氧化反应，进而发生崩解。风化程度越高，崩解越强烈；②砂质板岩水理性能由弱到强排序为：全风化砂质板岩＜强风化砂质板岩＜中风化砂质板岩＜弱风化砂质板岩；③砂质板岩越干燥，崩解效应越明显，大旱后突降雨，会导致板岩的强烈崩解，很容易诱发潜在滑坡。
사질판암재부통고속공로분포겁위엄범。사질판암재수적작용하，겁역발생붕해화연화，진이출현강도강저。침이부통고속공로24표변파전、강、중화약풍화사질판암위연구대상，진행료붕해특성、연화、무측한압축、전절삼투성적계렬시험，게시료사질판암수적수리특성。연구표명：①사질판암구비강렬붕해특성。사질판암게로우수후，쾌속발생양화반응，진이발생붕해。풍화정도월고，붕해월강렬；②사질판암수이성능유약도강배서위：전풍화사질판암＜강풍화사질판암＜중풍화사질판암＜약풍화사질판암；③사질판암월간조，붕해효응월명현，대한후돌강우，회도치판암적강렬붕해，흔용역유발잠재활파。
Sandy slate is distributed widely in Huai-Tong Expressway.Under the action of water, sandy slate tends to disintegration and softening,then appears strength reduction.For researching the fully,strong,moderately and weak weathered sandy slates in slopes belonging No.24 section of Huai-Tong Expressway,the disintegration character test,softening test,unconfined compression test and shear permeability test were carried out,which revealed the hydrological characteristics to sandy slates.Re-search shows that:①sandy slate with strong disintegration characteristics.Sandy slate exposed in water, oxidation reaction occurs rapidly,and then collapse.The higher degree weathered,the disintegrating is stronger;②the hydrological characteristics of sandy slate are ranked as:weak weathered <moderately weathered <strong weathered <fully weathered;③sandy slate is drier,disintegrating effect is more obvi-ous,the sudden rain after long drought will lead to strong disintegrating and induce landslide easily.