山西省普通国省公路地质灾害分布特征研究

Study on Distribution Characteristics of Geological Disasters on Ordinary National and Provincial Highways in Shanxi Province

研究旨在针对山西省普通国省公路地质灾害情况展开调查评估,以提供科学数据支持公路养护决策。采用CRI指标体系法对灾害风险点进行定量评估,通过数据矢量化处理,整理分析得出地质灾害的分布特征。结果显示,山西省普通国省公路现存地质灾害共计2801处,主要类型为崩塌和沉陷塌陷,水毁和滑坡次之,泥石流灾害较少。风险等级以三级(一般)为主,一级(重大)和二级(较大)风险点占比11%。地质灾害主要分布在吕梁山脉、太行山脉和中条山山脉,临汾、长治、晋中、阳泉和运城受影响较为严重。重点路线包括G209苏北线、G241呼北线等。上述结论为公路养护部门提供了重要的科学依据,有助于制定更有效的应对策略和预防措施。

This paper aims to conduct investigations and evaluations on geological disaster situations on ordinary national and provincial highways in Shanxi Province to provide scientific data that can support the decision-making on road maintenance.The disaster risk points are quantitatively evaluated using the CRI index system method,and the distribution characteristics of geological disasters are generalized and analyzed by data vectorization.The results show that there are total 2801 existing geological disasters on ordinary national and provincial highways in Shanxi Province,with the main types of collapse and subsidence,followed by water damage and landslides,and fewer mudslides.The risk is more frequent at level 3(average),with 11%of risks at level 1(significant)and level 2(larger).Geological disasters are mainly located in the Lüliang Mountains,Taihang Mountains,and Zhongtiao Mountains,with Linfen,Changzhi,Jinzhong,Yangquan,and Yuncheng being more seriously affected,and the key routes include Sonid Left Banner-Beihai Highway(G209),Hohhot-Beihai Highway(G241),etc.The above conclusions provide an important scientific basis for the highway maintenance department and help develop more effective responding strategies and preventive measures.