土钉支护面层受力探讨

成峰; 张远芳; 刘威; 万永祥

土钉支护面层受力探讨 English Version

新疆农业大学水利与土木工程学院，新疆乌鲁木齐 830052

基金项目: 新疆水利水电工程重点学科基金项目（xjzdsk-2002-10-05）

详细信息

作者简介:
成峰(1985– )，男，江苏南通人，硕士研究生，主要从事深基坑工程方面的研究。

中图分类号: TU432
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出版历程
- 收稿日期: 2011-06-12
- 发布日期: 2012-08-19

Forces acting on surface of soil nailing supports

(College of Hydraulic and Civil Engineering, Xinjiang Agriculture University, Urumqi 830052, China)

摘要

摘要: 土钉墙面层受不受力一直存在着争议。根据规程可知土钉面层不受力，所以喷射混凝土面层一般按构造进行设计。但实际上土钉墙面层土压力对基坑变形及墙体的应力分布有重要影响，特别是在软弱土地层深基坑中，面层受力较大。在提出有效下滑力概念的前提下，并结合增量法，对滑楔平衡法进行了改进。通过这种复合型算法计算得出土钉面层是受力的，并和实测值进行了比较，结果表明这种计算方法贴近实际情况。
- 土钉支护 /
- 面层土压力 /
- 增量法 /
- 滑楔平衡法 /
- 有效下滑力
Abstract: Whether or not the forces act on the surface of soil nailing supports is always controversial. According to the Chinese specification, there are no forces acting on soil nailing surface, so the jet concrete surface is designed in terms of certain structure. In fact, the earth pressure on soil nailing has great effect on deformation of the foundation excavations and stress distribution of the wall, especially in deep foundation excavations in soft soil ground. Based on the concept of effective sliding force, and considering with the incremental method, the sliding wedge balance method is improved. Through this complex algorithm, the calculated results indicate that there are forces acting on soil nailing surface, and they are compared with the measured ones. It is shown that the proposed method is practical.
- soil nailing support /
- earth pressure on surface /
- incremental method /
- sliding wedge balance method /
- effective sliding force

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参考文献(8)

[1]	程良奎. 岩土锚固研究与新进展[J]. 岩石力学与工程学报, 2005, 24(21): 3803–3811. (CHENG Liang-kui. Research and new progress in ground anchorage[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(21): 3803–3811. (in Chinese))
[2]	JGJ120—99建筑基坑支护技术规程[S]. 1999. (JGJ120—99 Building foundation pit supporting technical regulations[S]. 1999. (in Chinese))
[3]	JURAN I. Kinematical limit analysis for designing of soil nailed structures[J]. Journal of Geotechnical Engineering, ASCE, 1990, 116(1): 54–71.
[4]	陈肇元, 崔京浩. 土钉支护在基坑中的应用[M]. 2版. 北京: 中国建筑工业出版社, 2000. (CHEN Zhao-yuan, CUI Jing-hao. Application of soil nail timing in foundation pit[M]. 2nd ed. Beijing: China Architecture and Building Press, 2000. (in Chinese))
[5]	张钦喜, 霍达, 王北和. 土钉墙设计的滑楔平衡法[J]. 工业建筑, 2002, 32(2): 33–36. (ZHANG Qin-xi, HUO Da, WANG Bei-he. A method of designing soil-nailing wall based on sliding sphenoid-mass limit analysis[J]. Industrial Construction, 2002, 32(2): 33–36. (in Chinese))
[6]	杨光华. 深基坑支护结构的实用计算方法及其应用[M]. 北京: 地质出版社, 2004: 104–108. (YANG Guang-hua. Practical calculation method of retaining structures for deep excavations and its application[M]. Beijing: Geological Publishing House, 2004: 104–108. (in Chinese))
[7]	杨光华, 黄宏伟. 基坑支护土钉力的简化增量计算法[J]. 岩土力学, 2004, 25(1): 15–19. (YANG Guang-hua, HUANG Hong-wei. Simplified incremental calculation method of soil nail forces for retaining and protection of foundation pits[J]. Rock and Soil Mechanics, 2004, 25(1): 15–19. (in Chinese))
[8]	郭院成, 秦会来, 李峰. 土钉支护中土钉力的计算方法[J]. 岩土工程学报, 2006, 28(11): 1513–1516. (GUO Yuan-cheng, QIN Hui-lai, LI Feng. Calculation mode of the nail forces in soil nailing[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(11): 1513–1516. (in Chinese))

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土钉支护面层受力探讨 English Version

作者简介: 成 峰(1985– )，男，江苏南通人，硕士研究生，主要从事深基坑工程方面的研究。

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出版历程

Forces acting on surface of soil nailing supports

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目录

作者简介:
成峰(1985– )，男，江苏南通人，硕士研究生，主要从事深基坑工程方面的研究。