我院五十年代末期在成都和七十年代在安康两裂隙粘土地区施工设计的线路,出现了大量的路基病害。在襄渝线安康裂隙粘土约19.79公里(路堑长度12.63公里)的地段建筑路基时,虽然在成都裂隙粘土之后,也由于对安康地区裂隙粘土的特性,认识不足,以致设计、施工,基本上未能及时采取有效措施,防患于未然。从1972年破土开挖路基后,即产生 In our hospital in the late fifties in Chengdu and the seventies in Ankang two crack clay construction design line, there have been a lot of roadbed disease. In the construction of subgrade at a site of about 19.79 kilometers (with a length of 12.63 kilometers) of the Ankang Crack Clay in Xiang-Yu Line, even after cracked clay in Chengdu and due to lack of understanding of the characteristics of fractured clays in the Ankang area, the design, construction, Can take timely and effective measures to take preventive measures. After digging the roadbed from 1972, it is produced