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广元到巴中高速公路沿线分布有广泛的红层堆积体高边坡。红层堆积体是红层地区一种特殊的坡体结构类别,不同堆积物形成的堆积体,特别是堆积体内含大量块石夹土或孤石的情况下,结构不均匀性非常明显,堆积体自身结构松散。块石土堆积体为主要的分布最广泛的堆积类型,但沿线三种不同类型的堆积地区均有其代表性堆积体结构:古滑坡地区以粘土层下卧块石土堆积体为主;岩堆地区主要为层状堆积体;而一般性堆积体地区广泛分布有块石土粘土夹杂大孤石堆积体。对红层堆积体坡体结构在不同堆积地区的详细分类,为进一步研究红层堆积体高边坡的破坏机理和致灾模式提供了初步依据。
Guangyuan to Bazhong Expressway along the distribution of a wide range of red body accumulation of high slope. The red layer deposit is a special type of slope structure in the red layer area. In the case of the deposit body formed by different deposits, especially when the deposit body contains a large amount of rock blocks or boulders, the structural inhomogeneities are very obvious. Body itself loose structure. Limestone deposits are the most widely distributed types of deposits, but the three different types of depositional areas along the route have their own representative structures: the ancient landslide area is mainly composed of clay and clay deposits; The heap area is mainly lamellar accumulation body; while the general accumulation area area is widely distributed block clay mixed with big boulder pile body. The detailed classification of the slope body structure in different depositional areas provides a preliminary basis for further study on the failure mechanism and disaster mode of the high slopes of the red layer accumulation body.