预应力锚杆框架梁的支护力学行为研究

›› 2010, Vol. 31 ›› Issue (9): 2894-2900.

预应力锚杆框架梁的支护力学行为研究

韩爱民¹，李建国²，肖军华¹，徐洪钟¹

1. 南京工业大学土木工程学院，南京 210009；2. 中国建材工业地质勘查中心广东总队，广州 510403

收稿日期:2009-05-11 出版日期:2010-09-10 发布日期:2010-09-16
作者简介:韩爱民，男，1963年生，教授，从事中国区域性土的工程特性及深基坑与边坡工程方面的教学和科研。
基金资助:
江苏省自然科学基金项目（No. BK2006565）。

Mechanical behaviors of frame beam supporting structure with prestressed anchors

HAN Ai-min¹，LI Jian-guo²，XIAO Jun-hua¹，XU Hong-zhong¹

1. College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Guangdong Branch, China National Geological Exploration Center of Building Materials Industry, Guangzhou 510403, China

Received:2009-05-11 Online:2010-09-10 Published:2010-09-16

摘要/Abstract

摘要：

采用实际工程数值模拟，结合现场试验与测试以及变换设计参数进行数值仿真试验等，对预应力锚杆框架梁支护体系加固边坡的力学响应、支护体系与加固坡体之间相互作用的空间力学效应以及支护体系的力学响应对设计参数的敏感性等问题进行了研究。结果表明，预应力锚杆框架梁的支护力学性状表现出张拉和稳定工作两个不同阶段，设计时应主要考虑位于坡脚附近的框架梁与锚杆的内力在稳定工作阶段有所上升的不利影响，锚杆的锚固预应力、锚固角和锚固间距均对支护体系的内力和加固边坡的压缩变形有显著影响。

关键词: 预应力锚杆, 框架梁, 现场监测, 数值仿真, 力学行为

Abstract:

Based on numerical simulation in combination with field tests and measurements for strengthening works of a slope, as well as numerical experiments by varying the design parameters, mechanical behaviors and sensitivity analysis of frame beam supporting structure with prestressed anchors were studied; moreover, the interaction between the supporting structure system and slope was also discussed. The results show that there are two different stages when this supporting structure system strengthening slope; and they are respectively tension stage and stability stage. One should pay attention to the adverse effects in design that the inner forces of the frame beam and the anchor near slope toe increase during stability stage in work. Furthermore, results of parameter sensitivity analysis show that the prestress, angle, and spacing of the anchor have significant impacts on the inner forces of the supporting structure system and the compression deformation of the reinforced slope.

Key words: prestressed anchor, frame beam, field monitoring, numerical simulation, mechanical behaviors

中图分类号:

TU 476

韩爱民，李建国，肖军华，徐洪钟. 预应力锚杆框架梁的支护力学行为研究[J]. , 2010, 31(9): 2894-2900.

HAN Ai-min，LI Jian-guo，XIAO Jun-hua，XU Hong-zhong. Mechanical behaviors of frame beam supporting structure with prestressed anchors[J]. , 2010, 31(9): 2894-2900.

参考文献

相关文章 15

[1]	章定文, 刘志祥, 沈国根, 鄂俊宇, . 超大直径浅埋盾构隧道土压力实测分析及其计算方法适用性评价[J]. 岩土力学, 2019, 40(S1): 91-98.
[2]	郭院成, 李明宇, 张艳伟, . 预应力锚杆复合土钉墙支护体系增量解析方法[J]. 岩土力学, 2019, 40(S1): 253-258.
[3]	王小伟, 朱杰兵, 李聪, . pH和O2协同作用下预应力锚杆腐蚀损伤行为试验研究[J]. 岩土力学, 2019, 40(11): 4306-4312.
[4]	何海杰, 兰吉武, 高武, 陈云敏, 马鹏程, 肖电坤, . 压缩空气排水井在填埋场滑移控制中的应用及分析[J]. 岩土力学, 2019, 40(1): 343-350.
[5]	董志宏, 丁秀丽, 黄书岭, 邬爱清, 陈胜宏, 周钟, . 高地应力区大型洞室锚索时效受力特征及长期承载风险分析[J]. 岩土力学, 2019, 40(1): 351-362.
[6]	吴建涛, 叶霄, 李国维, 蒋超, 曹雪山, . 高路堤下PHC桩加固软土地基的承载及变形特性[J]. 岩土力学, 2018, 39(S2): 351-358.
[7]	程壮，王剑锋. 用于颗粒土微观力学行为试验的微型三轴试验仪[J]. , 2018, 39(3): 1123-1129.
[8]	陈晋龙，李锦辉，程鹏，宋磊，周腾. 植被作用下土质覆盖层渗透特性的现场试验[J]. , 2018, 39(1): 222-228.
[9]	贾金青，高军程，涂兵雄，张磊，王海涛，高仁哲,. 深基坑中压力型预应力锚杆柔性支护结构的离心模型试验研究[J]. , 2017, 38(S2): 304-310.
[10]	许度，冯夏庭，李邵军，吴世勇，邱士利，周扬一，高要辉，. 基于三维激光扫描的锦屏地下实验室岩体变形破坏特征关键信息提取技术研究[J]. , 2017, 38(S1): 488-495.
[11]	朱泽奇，盛谦，程红战，李建贺，卞晓曼. 基于直接生成法的土石混合体三维随机模型构建与数值仿真研究[J]. , 2017, 38(4): 1188-1194.
[12]	顾士坦，胡成成，戴华宾，严超超, . 分段锚预应力锚杆加固围岩力学分析[J]. , 2017, 38(10): 2826-2832.
[13]	庄海洋，张艳书，薛栩超，徐烨,. 深软场地地铁狭长深基坑变形特征实测与已有统计结果的对比分析[J]. , 2016, 37(S2): 561-570.
[14]	王辉，郭院成,. 基于突变理论的单根锚杆脱黏分析[J]. , 2016, 37(10): 2833-2838.
[15]	蒋建清，杨果林，. 格宾网加筋红层软岩土石混填路堤力学行为的现场测试与数值模拟[J]. , 2016, 37(1): 156-165.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed