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抗滑桩桩位选择是影响抗滑桩支护效果的重要因素,合理的抗滑桩桩位可以提供更有效的支护作用。以返岭前滑坡三为研究对象,根据滑坡不同变形模式下的受力变形特点,设计出推移式、牵引式、复合式3种工况,并采用Midas GTS NX有限元软件建立其抗滑桩支护模型,分析不同桩位下滑坡的位移量、塑性区以及稳定性变化等。通过抗滑桩安全贡献度这一参数,确定出推移式滑坡、牵引式滑坡、复合式滑坡的抗滑桩最优加固位置分别为坡体l/L=0.58附近、l/L=0.1附近、l/L=0.2附近(l为抗滑桩布设位置距坡脚长度;L为滑坡长度)。
Abstract:The selection of anti-slide pile position is an important factor affecting the supporting effect of anti-slide pile, and reasonable anti-slide pile position can provide more effective supporting effect. Taking the No.3 landslide of Fanlingqian as the research object, according to the stress and deformation characteristics of the landslide under different deformation modes, three working conditions are designed: push type, traction type and composite type, and its anti-slide pile support model is established by Midas GTS NX finite element software, and the displacement, plastic zone and stability change of the landslide under different pile positions are analyzed. Based on the parameter of safety contribution of anti-slide piles, this study determines that the optimal reinforcement positions of anti-slide piles for push-type landslide, traction-type landslide and composite-type landslide are near slope body l/L=0.58, l/L=0.1 and l/L=0.2, respectively(l is the length of the anti-slip pile from the foot of the slope, and L is the length of the landslide).
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基本信息:
DOI:
中图分类号:P642.22;TU473.1
引用信息:
[1]刁之旺,贺可强,田野等.堆积层滑坡抗滑桩最优桩位优化设计——以返岭前滑坡为例[J].青岛理工大学学报,2025,46(03):27-37.
基金信息:
山东省自然科学基金重点项目(ZR2020KE004)