西藏公路建设中的泥石流调查与危险性评价

Debris flow investigation and hazard assessment for constructions of highway in Tibet

作者根据大量工程实例及常用方法总结了西藏公路建设中的泥石流调查、评价方法及有关地区性计算公式,对泥石流特征调查的重点主要包括形成条件、运动特征、危害及发展趋势等因素,调查范围一般应以泥石流沟谷(或冲沟)流域范围为界。在实地调查的同时,结合推理计算,方可有效地掌握泥石流的主要特征。泥石流对公路工程的危害性可通过泥石流的活动规模与易发程度定性评价。以上调查方法具有一定的普遍性,可作为今后类似地质环境条件下进行该工作的借鉴。

The authors introduce methodologie of debris flow investigation should and assessment,and relevant regional computing formulas drawing from abundant engineering instances and common methods.It is suggested that investigation be focused on major characteristics of the debris flows,including formation conditions,movement characteristics,imperilment,and development trends,and investigation domain be confined to gulch valley of debris flows.The major characteristics of debris flows can be mastered effectively o...