国道 318 线拉萨至曲水大桥段地质灾害危险性评估与防治对策研究 |
| 四川矿产机电技师学院，四川成都，611200 |
| 摘要：本文根据建设用地地质灾害危险性评估报告，结合川藏公路和输变电工程地质灾害研究文献，构建适用于高海拔复杂地质条件的评估模型，以国道 318 线拉萨至曲水大桥段路面处治工程为研究对象。危岩、泥石流等灾害危险分区采用模糊综合评价法和层级分析法，有针对性地提出防治措施。研究结果表明，Ⅱ区（中等危险）9 段与Ⅲ区（低危险）9 段的分布与地层岩性、地形坡度密切相关，建议加强施工期监测预警及工程防护措施。 |
| 关健词：国道 318 线；地质灾害；危险性评估；层次分析法；模糊综合评价法 |
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| Risk Assessment and Prevention Measures for Geological Hazards along the Lhasa–Qu Shui Bridge Section of National Highway 318 |
| Hanyu Wang |
| Sichuan Mineral Mechanical and Electrical Technician College, Chengdu, Sichuan 611200, China |
| Abstract: This study focuses on the road surface treatment project of the Lhasa–Qu Shui Bridge section of National Highway 318. Based on the geological hazard risk assessment report for construction land and referencing research literature on geological hazards in Sichuan–Tibet Highway and power transmission projects, an assessment model suitable fo high-altitude complex geological conditions is established. Using the fuzzy comprehensive evaluation method and analytic hierarchy process (AHP), hazard zoning for unstable rock masses, debris flows, and other disasters is conducted, and targeted prevention measures are proposed. The results indicate that the distribution of 9 medium-risk (Zone II) and 9 low-risk (Zone III) segments is closely related to stratigraphic lithology and terrain slope. It is recommended to enhance monitoring, early warning systems, and engineering protection measures during construction. |
| Keywords：National Highway 318; geological hazards; risk assessment; analytic hierarchy process (AHP); fuzzy comprehensive evaluation metho |
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