疏排桩-土钉墙组合支护基坑整体稳定性分析

刘澄赤; 杨敏; 刘斌; 古海东

doi:10.11779/CJGE2014S2014

疏排桩-土钉墙组合支护基坑整体稳定性分析 English Version

刘澄赤^{1, 2},
杨敏^{1, 2},
刘斌^{1, 2},
古海东^{1, 2}

1. 同济大学土木工程学院,上海 200092;
2. 同济大学岩土及地下工程教育部重点实验室,上海 200092

详细信息

作者简介:
刘澄赤（1990- ）,女,江苏南通人,硕士,主要研究方向为桩基础与深基坑。E-mail: dodolcc@126.com。

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出版历程
- 收稿日期: 2014-07-27
- 发布日期: 2014-07-27

Overall stability analysis of scattered pile-soil-nailing composite retaining system for foundation pits

LIU Cheng-chi^{1, 2},
YANG Min^{1, 2},
LIU Bin^{1, 2},
GU Hai-dong^{1, 2}

1. College of Civil Engineering, Tongji University, Shanghai 200092, China;
2. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China

摘要

摘要: 疏排桩-土钉墙组合支护是疏排桩与土钉墙组合形成的一种新型支护形式,是复合土钉墙发展的趋势之一。目前这一支护结构已在工程中应用,但对其的整体稳定性分析,目前尚未有统一的较好的理论分析方法。分别采用刘斌（2011）方法和有限元强度折减法计算疏排桩-土钉墙组合支护基坑的整体稳定性安全系数,并将两种方法的计算结果与离心机试验安全系数以及滑裂面位置进行对比分析。对比结果表明,采用刘斌（2011）方法计算得到的安全系数比强度折减法的计算值更接近于试验值,刘斌（2011）方法更适用于疏排桩-土钉墙组合支护的整体稳定性分析。
- 疏排桩 /
- 土钉墙 /
- 离心机试验 /
- 整体稳定 /
- 强度折减法
Abstract: Scattered row pile-soil-nailing wall retaining structure is a new support form which combineds soil-nailing wall and sparse row piles. It’s one of important directions of the composite soil-nailing wall. This new retaining structure is used in engineering practices, but a unified method is not available for analysis of its overall stability. The suitability of LIU Bin's method and the strength reduction method in calculating the overall stability safety factor is discussed based on the centrifugal model tests. The results indicate that LIU Bin's method is more suitable for the overall stability analysis of scattered pile-soil-nailing composite retaining system for foundation pits.
- scattered pile /
- soil-nailing wall /
- centrifugal model test /
- overall stability /
- strength reduction method

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参考文献(6)

[1]	吴忠诚, 杨志银, 罗小满, 等. 疏排桩锚-土钉墙组合支护结构稳定性分析[J]. 岩石力学与工程学报, 2006, 25(增刊2): 3607-3613. (WU Zhong-cheng, YANG Zhi-yin, LUO Xiao-man, et al. Stability analysis of scattered row pile-soil-nailed wall protection structure[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(S2): 3607-3613. (in Chinese))
[2]	杨志银, 张俊. 复合土钉墙技术在深圳的应用与发展[J]. 岩土工程学报, 2006, 28(增刊2): 1673-1676. (YANG Zhi-yin, ZHANG Jun. Development and application of composite soil nailing walls in Shenzhen[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(S2): 1673-1676. (in Chinese))
[3]	连镇营, 韩国城, 孔宪京. 强度折减有限元法研究开挖边坡的稳定性[J]. 岩土工程学报, 2001, 23(4): 407-411. (LIAN Zhen-ying, HAN Guo-cheng, KONG Xian-jing. Stability analysis of excavation by strength reduction FEM[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(4): 407-411. (in Chinese))
[4]	古海东, 杨敏, 孙宽, 等. 强度折减法在排桩支护结构稳定性分析中的应用[J]. 地下空间与工程学报, 2012, 8(6): 1168-1172. (GU Hai-dong, YANG Min, SUN Kuan, et al. The application of Strength-reduction method in stability analysis of row pile retaining structure[J]. Chinese Journal of Underground Space and Engineering, 2012, 8(6): 1168-1172. (in Chinese))
[5]	刘斌, 杨敏. 疏排桩-土钉墙组合支护结构的计算参数与支护特性[J]. 地下空间与工程学报, 2011, 7(增刊1): 1372-1376. (LIU Bin, YANG Min. Analysis of parameters and retaining characteristics of composite structure with scattered piles and soil nailing[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(S1): 1372-1376. (in Chinese))
[6]	刘金龙, 栾茂田. 关于强度折减有限元方法中边坡失稳判据的讨论[J]. 岩土工程学报, 2005, 26(8): 1346-1348. (LIU Jin-long, LUAN Mao-tian. Discussion on criteria for evaluating stability of slope in elasto-plastic FEM based on shear strength reduction technique[J]. Chinese Journal of Geotechnical Engineering, 2005, 26(8): 1346-1348. (in Chinese))

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疏排桩-土钉墙组合支护基坑整体稳定性分析 English Version

作者简介: 刘澄赤（1990- ）,女,江苏南通人,硕士,主要研究方向为桩基础与深基坑。E-mail: dodolcc@126.com。

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出版历程

Overall stability analysis of scattered pile-soil-nailing composite retaining system for foundation pits

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出版历程

目录

作者简介:
刘澄赤（1990- ）,女,江苏南通人,硕士,主要研究方向为桩基础与深基坑。E-mail: dodolcc@126.com。