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云南多为山区,山区占全省面积的2/3以上,地貌及地质环境复杂。省内公路大部分处于地质条件复杂的山区,深挖高填路段多。随着近年来云南省公路建设的快速发展,公路滑坡频发,对全省的公路运行安全及经济的发展造成了不小的影响,因此有必要对公路滑坡灾害进行风险评价,并提出适当的管控措施。本文在对蛮金线进行详细岩土勘查的基础上,将滑坡灾害危险性评价的可靠性分析方法与风险评估矩阵相结合,对全线48处滑坡进行了风险评价,具有指导公路建设,保障公路安全运营等重要意义。
Yunnan is mostly mountainous, with mountainous areas accounting for more than two-thirds of the province’s total area. The landscape and geological environment are complex. Most of the highways in the province are in mountainous areas with complicated geological conditions and many dig deep sections of highways. With the rapid development of highway construction in Yunnan Province in recent years, frequent landslides have exerted a great influence on the operation safety and economic development of the whole province. Therefore, it is necessary to evaluate the risk of landslide hazards and put forward appropriate Control measures. Based on the detailed geotechnical investigation of the barn gold line, this paper combines the reliability analysis method of landslide disaster risk assessment with the risk assessment matrix to evaluate the risk of 48 landslides across the board, which can guide the construction of highways, Safe operation and other important significance.