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顺层变质岩坡稳定性评价与生态治理方案

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为了探究鄂西北变质岩区不稳定斜坡滑崩地质灾害的成因机制和生态治理模式,以三用塘顺层变质岩不稳定斜坡为研究对象,在查明灾害体地质与变形特征的基础上,分析了其可能的破坏模式与主要影响因素,深入探究了顺层变质岩坡渐进式变形破坏的成因机理.采用极限平衡等方法对不稳定斜坡进行了稳定性分析评价,结果表明,该斜坡体处于不稳定状态.基于地质灾害生态治理理念,提出了削方整形、护脚墙、格构锚固、截排水沟、生态绿化与监测等综合防治措施.通过工程实施及效果监测表明:该治理方案不仅有效地消除了三用塘滑崩地质灾害安全问题,而且取得了良好的环境绿化与美化效果.其综合防治措施,特别是将地质灾害防治与生态绿化融为一体的生态治理模式可为同类顺层变质岩不稳定斜坡的加固与坡面防护提供借鉴.
Stability Evaluation and Ecological Governance Scheme of Bedding Metamorphic Rock Slope
In order to explore the genetic mechanism and ecological governance model of the landslide and collapse geological disaster on the unstable slope in the Metamorphic rock area of northwest Hubei,the unstable slope in the bedding Metamorphic rock of Sanyongtang was chosen as the research object,on the basis of identifying the geological and deformation characteristics of the disaster body,the possible failure modes and main influencing factors were analyzed,and the mechanism of progressive deformation and failure of bedding metamorphic rock slopes was deeply explored.The stability calculation and evaluation of an unstable slope were conducted using methods such as limit equilibrium,and the results show that the slope was in an unstable state.Based on the concept of ecological management of geological disasters,the comprehensive prevention and control measures have been proposed,including cutting and shaping,foot protection walls,framed anchor,truncation drain,ecological greening and monitoring.Through engineering implementation and effectiveness monitoring,it has been shown that this treatment scheme not only effectively eliminates the safety problem of landslide and collapse geological hazards in the Sanyongtang,but also achieves good environmental greening and beautification effects.Its comprehensive prevention measures,especially the ecological governance mode integrating geological disaster prevention and ecological greening,can provide reference for the reinforcement and slope protection of similar bedding Metamorphic rock unstable slopes.

bedding metamorphic rockfailure mechanismstability evaluationprevention measuresecological governance

祝威、陈旭勇、康钦容、董杰华

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武汉工程大学土木与建筑工程学院,武汉 430073

武汉工程大学资源与安全工程学院,武汉 430073

顺层变质岩 破坏机理 稳定性评价 防治措施 生态治理

国家自然科学基金

51804222

2024

科学技术与工程
中国技术经济学会

科学技术与工程

CSTPCD北大核心
影响因子:0.338
ISSN:1671-1815
年,卷(期):2024.24(6)
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