首页|富水区软岩边坡牵引式滑坡发展机理及锚索格梁加固技术研究

富水区软岩边坡牵引式滑坡发展机理及锚索格梁加固技术研究

扫码查看
我国粤北山岭重丘区软岩边坡分布广泛,雨水丰沛时期牵引式滑坡事故多发,牵引式滑坡诱因及发展过程需进一步研究.锚索结构作为边坡加固的重要手段,格梁-锚索-边坡协同工作机制尚不明确.本文基于高速五级边坡滑坡案例,分析了滑动面的位置并据此建立可靠的有限元分析模型,揭示了牵引式滑坡自下而上渐进发展的特征.进一步基于滑坡加固设计方案建立格梁-锚索边坡加固有限元模型,探究了格梁-锚索-边坡协同工作机制.分析结果表明,格梁-锚索改变了边坡的应力状态并且增强了加固区域的整体性,进而增强了边坡的稳定性.其中第一排和最后一排锚索对边坡的牵引效果最为明显,实际边坡加固工程中可对其进行增强设计.
Study on Development Mechanism of Soft Rock Slope Retrogressive Landslide in Water Rich Area and Anchor Cable Frame Reinforcement Technology
Soft rock are widely distributed in mountainous and hilly areas of northern Guangdong,and soft rock slopes retrogressive landslide occurs frequently during the rainy season. The key inducing factors and development process of retrogressive landslide need to be further studied to put forward targeted prevention measures. As an important means of slope reinforcement,the cooperative working mechanism of frame-anchor cable-slope system is not clear. In this paper,based on the case of an expressway 5-stage slope landslide,the position of the sliding surface was determined,and according to which a reliable finite element analysis model was established and the characteristics of retrogressive landslide from bottom to top were revealed. The cooperative working mechanism of frame-anchor cable-slope system was explored. The analysis results showed that the frame-anchor cable changed the stress state of the slope and enhanced the integrity of the reinforcement area,thus enhancing the stability of the slope. The first row and the last row of anchor cables have the most obvious retrogressive effect on the slope,which can be enhanced in practical slope reinforcement engineering projects.

retrogressive landslideframe-anchor cable reinforcementlandslide mechanismnumerical simulation

王高、李华弟、谭光彩

展开 >

广东华路交通科技有限公司,510420

牵引式滑坡 格梁-锚索加固 滑坡机理 数值模拟

2024

广东公路交通
广东省交通科技有限公司

广东公路交通

影响因子:0.311
ISSN:1671-7619
年,卷(期):2024.50(4)