| 四川某一级公路滑坡成因分析及处治研究 |
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| 引用本文： | 伍洋洋.四川某一级公路滑坡成因分析及处治研究[J].城市道桥与防洪,2023(12):47-50,69. |
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| 作者姓名： | 伍洋洋 |
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| 作者单位： | 上海市政工程设计研究总院集团有限公司 |
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| 摘 要： | 在山区公路建设过程中易发生边坡滑坡地质灾害,严重影响公路的推进进度并增加项目总投资,因此开展研究公路滑坡成因及处治方案至关重要。本文结合四川某一级公路路堑开挖过程中出现的边坡整体失稳,从地形地貌、气象水文、地层岩性、地质构造等方面对滑坡成因进行分析,采用传递系数法对天然、暴雨及地震三种工况下滑坡体剩余下滑力计算,定量评价滑坡稳定性。根据分析、计算结果,综合考虑处治费用、施工周期、施工风险、运营风险及环境影响等因素,最终采用抬升路面设计高程、清方、坡面支挡防护与防排水等工程措施组合的综合处治方案。目前该滑坡体处治基本完成,处治后边坡稳定,为今后类似工程提供借鉴。
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| 关 键 词： | 一级公路 滑坡 传递系数法 稳定性评价 综合处治 |
| 收稿时间： | 2023/2/8 0:00:00 |
| 修稿时间： | 2023/2/13 0:00:00 |
Analysis on Cause and Study on Treatment of Landslide in a First-grade Highway of Sichuan |
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| wuyangyang.Analysis on Cause and Study on Treatment of Landslide in a First-grade Highway of Sichuan[J].Urban Roads Bridges & Flood Control,2023(12):47-50,69. |
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| Authors: | wuyangyang |
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| Abstract: | In the process of highway construction in mountainous areas, the geological disasters of slope landslides are likely to occur, which will seriously affect the progress of highway construction and increase the total investment of the project. Therefore, it is very important to carry out research on the causes of highway landslides and the treatment schemes. Combined with the overall unstability of the slope in the cutting excavation process of a first-grade highway in Sichuan, the causes of landslide are analyzed from the aspects of topography, meteorology, hydrology, formation lithology, geological structure and so on. The transfer coefficient method is used to calculate the residual sliding force of landslide under the natural, rainstorm and earthquake conditions, and quantitatively evaluate the stability of landslide. According to the analysis and calculation results, considering the treatment cost, construction period, construction risk, operation risk, environmental impact and other factors, the comprehensive treatment scheme of lifting the pavement design elevation, clearing the earthwork, retaining and protecting the slope surface, waterproof, drainage and the other engineering measures is finally adopted. At present, the treatment of the landslide is basically completed, and the slope is stable after treatment, which provides reference for similar projects in the future. |
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| Keywords: | first-grade highway landslide transfer coefficient method stability evaluation comprehensive treatment |
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