摘要
西藏扎墨公路沿线地势陡峭、降水充沛、岩体破碎,造成沿线泥石流频发,公路结构损毁严重,对公路交通安全和区域经济发展造成严重影响。对扎墨公路沿线泥石流等地质灾害开展调查研究,得到了沿线泥石流的分布规律;公路泥石流密度平均为0.69处/km,泥石流分布密度和危害程度最大的是中段,从中段向公路的南端和北端逐渐减小,降水对泥石流密度和强度影响明显。通过对比及结合扎墨公路新改建工程的实际情况,推荐了单排抗滑桩或桩板墙方案作为滑坡防治方案。
Along the Tibet ZhaMo highway,the terrain is steep and there are plenty of rainfall and the rock mass is broken,resulting in the frequent debris flow along the road and the serious damage to the highway structure,which has a serious impact on the road traffic safety and regional economic development.The investigation of debris flow and other geological disasters along the ZhaMo highway indicates the distribution characteristics of debris flows along the route.Among them,the middle section is the highest distribution density and hazard degree（Ⅲ section）,which decreasing from the middle section to the southern and northern ends of the highway.The average debris flow density is 0.69 parts per km,and the influence of precipitation on the strength and density of debris flow is obvious.This paper introduces the common engineering technology and protective engineering technology of debris flow,taking the typical landslide（K85 landslide）of ZhaMo highway as an example.By comparing the scheme of single-row anti-slide piles with theprestressed anchor cables of frame and combining the actual situation of reconstruction project in ZhaMo,the paper recommends a row of anti-slide pile or piled wall as a landslide prevention scheme.
作者
杨天军
YANG Tianjun(Sciences Academy,MinistryofTransport of the People’s Republic of China,Beijing 100013,China)
出处
《中国科技论文》
CAS
北大核心
2018年第9期1055-1059,共5页
China Sciencepaper
基金
"十二五"国家科技支撑计划重点项目(2012BAK10B02-4)
关键词
扎墨公路
泥石流
分布规律
防治措施
工程评价
ZhaMo highway
debris flow
distribution characteristics
prevention and control measures
engineering evaluation
