Design method for anti-slide piles based on FLAC3D
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摘要: 边坡治理措施中最常用的就是抗滑桩工程,但目前其设计与计算理论却非常不成熟,设计过程中的很多问题都依赖于人为假设,设计结果也非常保守。在 FLAC3D 数值模拟的基础上,提出了基于该软件的抗滑桩设计方法。由于数值计算能够相对准确的模拟滑坡传力和抗滑桩受力过程,因而其设计结果也就更符合实际情况。本方法的提出,突破了人们长期以来以经验为主的刚体极限平衡设计体系,对指导实际抗滑桩的设计和施工,以及今后抗滑桩的设计研究具有一定的参考价值。Abstract: China is a country full of mountains. Recently, with the increase of human activities, slope problems have become more and more serious. The anti-slope pile is the most popular way to cope with slope problems, but the design and theory are not mature. Lot of problems based on assumptions and the outcomes are very conservative. Based on the numerical simulation with FLAC3D , and a new way is proposed to design anti-slide piles. Numerical simulation can well perform the simulation of slope moving and the load on piles, and it can give a more reasonable design. The proposed method can improve the design from artificial calculation to computer simulation and break the traditional design system based on the assumptions. It is useful for the pile design and construction and has reference value for the researches on anti-slide piles.
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Keywords:
- slope /
- anti-slide pile /
- FLAC3D /
- rigid-body limit equilibrium method
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[1] Itasca Consulting Group, Inc. FLAC 3D(Fast Largrangian analysis of continua in 3 dimension) user manuals, Version 2.1 Minneapolis, Minnesota, 2002, 6. [2] 三峡大学土木水电学院 . 清江水布垭水利枢纽古树包滑坡抗滑桩工程效果分析 [R]. 宜昌 : 三峡大学 , 2003. (College of Civil and Hydraulic Engineering, Three Groges University. Analysis of anti-slide piles' engineering effect of Gushubao landslide in Shuibuya hydro-junction project of Qingjiang river[R]. Yichang: Three Gorges University, 2003. (in Chinese)) [3] 长江水利委员会长江勘测规划设计研究院 . 滑坡治理安全标准及水布垭坝区大型滑坡稳定分析与治理方案措施研究 [R]. 宜昌 : 长江水利委员会 , 2005. (Changjiang Institute of Survey; Planning; Design & Research, Changjiang Water Resources Commission. Research on slide safety standards and stability & treament measures of large-scale landslides in Shuibuya dam area[R]. Yichnag: Changjiang' Water Resources Commission, 2005. (in Chinese))