杨家屋场桥下弃土型泥石流调查与防治设计  

Field Investigation on Spoil Triggered Debris Flow under Yangs Village Bridge and the Engineering Prevention Design

作　　者：周小军[1] 向灵芝[2] 郝春华 ZHOU Xiaojun;XIANG Lingzhi;HAO Chunhua(China Merchants Chongqing Communications Research&Design Institute Co.,Ltd.,Chongqing 400067,China;Key Laboratory of Geological Hazards Mitigation for Mountainous Highway and Waterway,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067 [2]重庆交通大学山区公路水运交通地质减灾重庆市高校市级重点实验室,重庆400074

出　　处：《路基工程》2020年第5期188-194,共7页Subgrade Engineering

基　　金：国家自然科学基金项目(41601565)。

摘　　要：以重庆市巫奉高速弃土型泥石流为研究对象,通过详细野外调查,阐述弃土型泥石流灾害的发育和成灾过程,系统研究泥石流运动特征和动力参数。结果表明:杨家屋场桥下弃土型泥石流主要致灾因素为陡峻的地形、大量的弃土和持续降雨。针对上述特点,采用固源、清方、排导和拦挡的综合防治设计,以减少对自然环境和工程设施的危害。Taking the spoil triggered debris flow along Wushan—Fengjie highway in Chongqing as the study object,the development and outbreak processes of the disaster of the spoil triggered debris flav were described after filed investigation,and then the motion characteristics and the dynamic parameters there of were studied systematically.The result shows that the main factors incurring the spoil triggered debris flow under Yangs Village Bridge include steep terrain,a large number of spoil and continuous rainfall.Therefore the comprehensive prevention measures,including source solidification,earth clear-up,drainage and blocking,are designed accordingly so as to reduce the damages to natural environment and engineering facilities.

关 键 词：山区公路 泥石流 弃土 野外调查 工程防治 

分 类 号：U416.165[交通运输工程—道路与铁道工程]