| 基于FLAC3D的抗滑桩间距优化设计研究 |
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| 引用本文： | 陈新泽,郑颖睿.基于FLAC3D的抗滑桩间距优化设计研究[J].路基工程,2014,0(6):135-139. |
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| 作者姓名： | 陈新泽 郑颖睿 |
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| 作者单位： | 1.西北电力设计院, 西安 710032 |
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| 摘 要： | 结合工程实例,基于FLAC3D数值模拟方法,分析了不同桩间距下桩间土体拱效应的产生机理,直观有效地反应了桩间距优化后的加固效果,利用强度折减法计算预应力锚索抗滑桩加固后的滑坡体稳定性系数。结果表明:当桩间距为2.0～3.5倍桩宽时,桩间土拱效应得到充分发挥,并利用数值模拟优化。
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| 关 键 词： | 预应力锚索抗滑桩 桩间距 土拱效应 FLAC3D数值模拟 强度折减法 |
| 收稿时间： | 2019-11-07 |
Study on Design of Pile Spacing Optimization for Anti-slide Piles Based on FLAC3D |
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| Authors: | CHEN Xinze ZHENG Yingrui |
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| Affiliation: | CHEN Xinze, ZHENG Yingrui (1. Northwest Electric Power Design Institute, Xi＇an 710032, China; 2. Puyang Yellow River Adminstration Bureau in Henan province, Puyang 457000, Henan, China) |
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| Abstract: | Depending on case study, the mechanism of soil arching effect between piles under different pile spacing was analyzed by FLAC3D numerical simulation, reflecting the reinforcement result after pile spacing optimization directly; then the landslide stability coefficient after reinforcement by prestressed-anchor anti-slide pile was calculated by strength reduction method. The results show that, when the pile spacing is 2.0 - 3.5 times the pile width, the soil arching effect between the piles get full play, and can be optimized through numerical simulation. |
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| Keywords: | prestressed-anchor anti-slide pile pile spacing soil arching effect FLAC3D numerical simulation strength reduction method |
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