The Effect of Excavation on The Safety Factor of Slop in Slide-resistant Piles  Construction

周波; 彭社琴; 赵其华

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The Effect of Excavation on The Safety Factor of Slop in Slide-resistant Piles Construction

更新时间：2025-12-11

- The Effect of Excavation on The Safety Factor of Slop in Slide-resistant Piles Construction
- Issue 1, Pages: 73-77(2006)
- 作者机构：
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  CLC： U753.3
- Published：2006
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[1]周波,彭社琴,赵其华.抗滑桩施工中边坡稳定系数分析[J].防灾减灾工程学报,2006(01):73-77.

周波, 彭社琴, 赵其华. The Effect of Excavation on The Safety Factor of Slop in Slide-resistant Piles Construction[J]. 2006, (1): 73-77.
[1]周波,彭社琴,赵其华.抗滑桩施工中边坡稳定系数分析[J].防灾减灾工程学报,2006(01):73-77. DOI：

周波, 彭社琴, 赵其华. The Effect of Excavation on The Safety Factor of Slop in Slide-resistant Piles Construction[J]. 2006, (1): 73-77. DOI：

摘要

采用连续介质快速拉格朗日差分分析方法

结合强度折减技术

设定解不收敛的破坏标准

来探讨抗滑桩施工过程中桩孔开挖对边坡稳定系数的影响这一三维问题。结合工程实例

模拟几种开挖顺序

结果表明合理的施工方案对边坡扰动甚微

而随意开挖桩孔可能使边坡失稳

且失稳时的位移不大

破坏征兆不明显

破坏更加突然

应特别注意。分析施工因素对边坡稳定系数的影响

特别是对处在极限状态下的边坡

十分必要。

Abstract

The fast Lagrangian difference method of continua is used to analyze the effect of excavation on the safety factor of slop in slide-resistant piles construction.Strength reduction technique by setting a failure criterion——the divergence of maximum unbalance force——is also employed to study this three-dimensional problem.Comparisons are made of the computed safety factors associated with different construction sequences and the most reasonable construction sequences are resulted

which is found to cause little disturbance on the slope stability.However

casual excavation for pile construction may cause slope instability with small displacements

and the slope would collapse abruptly without obvious precursors.Moreover

it is necessary to analyze the safety factor decrease caused by construction especially for slopes in critical states.

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references

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预应力锚索框架作用下附加应力的FLAC 3D 模拟 [J]. 丁秀美,黄润秋,臧亚君. 成都理工大学学报(自然科学版) . 2003(04)

土坡稳定分析强度折减有限元法 [J]. 孙伟,龚晓南. 科技通报 . 2003(04)

有限元强度折减系数法计算土坡稳定安全系数的精度研究 [J]. 张鲁渝,郑颖人,赵尚毅,时卫民. 水利学报 . 2003(01)

强度折减有限元法研究开挖边坡的稳定性 [J]. 连镇营,韩国城,孔宪京. 岩土工程学报 . 2001(04)

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