川藏公路扎木到索通段第四纪堆积体的分布及产出特征

川藏公路是进出西藏的主要交通命脉之一,所在帕隆藏布河谷地区是重大交通干线(川藏高速公路、川藏铁路)、场镇、水利工程所在的关键地带,开展前期基础地质调查研究是工程建设的前提。以扎木到索通段为研究区,以第四纪松散堆积体为研究对象,利用传统地质调查方法,结合遥感解译和钻探勘察结果,查明研究区第四纪堆积体的分布情况,总结了第四纪松散堆积体的成因和产出特征,为研究区即将修建的川藏高速、川藏铁路以及其他重大工程的规划、设计、管理提供基础地质依据。

Distribution of the Quaternary accumulation along Zhamu-Suotong section of the Sichuan-Tibet high way and their occurrence characteristics

Sichuan-Tibet highway is one of the most important traffic passageway of Tibet, as the highway , main towns and major hydro projects are located in valley region of the Purlung Tsangpo, the railway is designed to build here too. Research on the quaternary accumulation in valley region of the Purlung Tsangpo is not only the primary task of geo-hazards survey but also basis for major engineering project. Taking Zhamu-Suotong area as the study area and based on field investigation and drilling, the authors analyzed five main types accumulation, on such a basis, summarized the genesis and distribution regularity of quaternary accumulation in Zhamu-Suotong area.