川藏公路特殊碎屑流灾害综合防治技术

川藏公路帕隆藏布沿岸路段广泛发育一种特殊的碎屑流灾害——溜砂坡，危害十分严重。通过近几年的研究与工程实践，溜砂坡灾害的防治对策可归纳为避让与清除、砂源区控制技术、固砂技术、拦砂技术与排砂技术五大类。根据溜砂坡灾害的基本特征、发育阶段及道路工程所处的环境条件，有针对性地选择防治技术，才能取得较好的防治效果。

The comprehensive prevention and control measures of debris flow along the Sichuan-Tibet Highway

The sand-sliding slope, which belongs to one of special types of debris flow, has been a common geohazard along the Sichuan-Tibet Highway. On the river bank of Palongzangbu along the Sichuan-Tibet Highway, the sand-sliding slope is characterized by wide distribution and serious damage. Based on several years' research and engineering practice, the authors classified the prevention and control measures for the sand-sliding slope into five sorts, i.e., avoidance and mucking, sand source control, sand consolidation, sand retaining and sand draining. To achieve the better control effect, we should select some prevention and control measures in a well-targeted manner and take into account the basic features and developmental stage of the sand-sliding slope and environmental conditions encountered by the Sichuan-Tibet Highway.