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公路路基边坡锚杆格梁防护技术研究

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文章以山东省某公路工程为例,通过边坡节理赤平投影分析了边坡稳定性,计算了三种工况下的边坡稳定性系数,并确定了锚杆格梁护坡的技术参数,最后应用有限元软件计算了增设锚杆格梁前后边坡的位移和剪应力分布.研究结果表明:边坡节理投影交点处于边坡投影弧的另外一侧,且位于软弱结构面的坡体内部,边坡部分岩体在极端气候或地震作用下会处于欠稳定状态;增设锚杆格梁护坡后,边坡受力得到较大改善,边坡下部位移和剪应力集中明显变小,边坡稳定性提高.
Research on the Protection Technology of Anchor Lattice Beam for Highway Subgrade Slope
Taking a highway engineering in Shandong province as an example,the slope stability is analyzed through the slope joint stereographic projection,the slope stability coefficients under three kinds of working conditions are calculated,the technical parameters of the protection slope of the anchor lattice beam are determined,and finally the displacement and shear stress distribution of the slope before and after the addition of the anchor lattice beam are calculated by using the finite element software.The research results show that:the intersection of the slope joint projection is on the other side of the slope projection arc and it is located in the slope of the weak structural plane,and some rock masses on the slope will be in an unstable state under the extreme climate or earthquake action.After the addition of the protection slope of the anchor lattice beam,the slope stress is greatly improved,the displacement and shear stress concentration of the lower part of the slope are significantly reduced,and the slope stability is improved.

Slope protectionAnchor lattice beamNumerical simulationSafe construction

薛金龙

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中石化石油工程设计有限公司 东营市 257000

边坡防护 锚杆格梁 数值模拟 安全施工

2025

北方交通
辽宁省交通科学研究院

北方交通

影响因子:0.514
ISSN:1673-6052
年,卷(期):2025.(1)