高级搜索
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊

滑坡防治格构式预应力锚杆模型试验研究

韩冬冬, 门玉明, 胡兆江

韩冬冬, 门玉明, 胡兆江. 滑坡防治格构式预应力锚杆模型试验研究[J]. 岩土工程学报, 2015, 37(8): 1375-1380. DOI: 10.11779/CJGE201508003
引用本文: 韩冬冬, 门玉明, 胡兆江. 滑坡防治格构式预应力锚杆模型试验研究[J]. 岩土工程学报, 2015, 37(8): 1375-1380. DOI: 10.11779/CJGE201508003
shu
HAN Dong-dong, MEN Yu-ming, HU Zhao-jiang. Model test on prestressed anchors with lattice beams in landslide protection[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(8): 1375-1380. DOI: 10.11779/CJGE201508003
Citation: HAN Dong-dong, MEN Yu-ming, HU Zhao-jiang. Model test on prestressed anchors with lattice beams in landslide protection[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(8): 1375-1380. DOI: 10.11779/CJGE201508003
shu

滑坡防治格构式预应力锚杆模型试验研究  English Version

  • 长安大学地质工程与测绘学院,陕西 西安 710054

基金项目: 国土资源大调查项目（1212011220145）
详细信息
    作者简介:

    韩冬冬(1987- ),男,博士研究生,主要从事地质灾害和建筑安全方面的研究工作。E-mail: yatongdongdong@163.com。

  • 中图分类号: P642.22

Model test on prestressed anchors with lattice beams in landslide protection

  • College of Geology Engineering and Geomatics, Chang’an University, Xi'an 710054, China

摘要

    摘要
  • 摘要: 通过大型物理模型试验,模拟了滑坡防治格构式预应力锚杆从预应力施加至破坏的过程,研究了预应力锚杆对滑坡的防治过程、单根锚杆及各锚杆之间的受力变形规律。试验结果表明：格构式预应力锚杆对滑坡的抗滑作用可分为主动防护阶段和被动防护阶段两个阶段;在主动防护阶段,各锚杆受力相同,而在被动防护阶段,中下排锚杆受力大于中上排锚杆,且随着滑坡变形的发展,这种现象越明显;在滑坡发展过程中,锚杆处于弯曲和轴向拉伸组合变形状态,滑面附近锚固段变形为上侧受拉下侧受压,自由段则相反,锚杆轴应变在滑面处最大,从滑面至锚杆末端逐渐减小,自由段基本相等;滑坡中上排锚杆弯曲变形大于中下排,轴向拉伸小于中下排。
    Abstract: In order to investigate the protection process of prestressed anchors with lattice beams in landslide protection as well as their force and deformation rules, the process of prestressed anchors from prestressing to failure is simulated through large-scale physical model tests. The study shows that the landslide protection effect of prestressed anchors can be divided into two stages, active and passive protection stages. At the active protection stage, the force of each anchor is equal. But at the passive protection stage, the force of the lower anchors is stronger than that of the upper ones. The phenomenon is more obvious with the development of landslide. The anchors are in a state of bending and tensile stress during the process of landslide development. The deformation of anchored section near the sliding surface is tensioned in the upside and compressed in the bottom side. But for the free section, it is the opposite. The maximum axial strain of the anchors appears at the anchored section near the sliding surface. In the anchorage section, the axial strain decreases gradually from the sliding surface to the end of the anchors while it is equal in the free section. The bending deformation of anchors in the upper rows is greater than that in the middle and lower rows while the axial tension is opposite.
    • HTML全文
    • 参考文献(12)
  • [1] 殷跃平. 滑坡钢筋砼格构防治“倒梁法”内力计算研究[J]. 水文地质工程地质, 2005, 6: 52-56. (YIN Yue-ping. Internal force analysis on steel concrete lattice by reverse beam method for landslide control[J]. Hydrogeology & Engineering Geology, 2005, 6: 52-56. (in Chinese))
    [2] 肖世国, 周德培. 岩石高边坡预应力锚索地梁的一种内力计算方法[J]. 岩石力学与工程学报, 2003, 22(2): 250-253. (XIAO Shi-guo, ZHOU De-pei. Internal force calculation method of prestressed-cable beam-on-foundation for high rock slope[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(2): 250-253. (in Chinese))
    [3] 唐辉明, 许英姿, 程新生. 滑坡治理工程中钢筋混凝土格构梁设计理论研究[J]. 岩土力学, 2004, 25(11): 1683-1687. (TANG Hui-ming, XU Ying-zi, CHENG Xin-sheng. Research on design theory of lattice frame anchor structure in landslide control engineering[J]. Rock and Soil Mechanics, 2004, 25(11): 1683-1687. (in Chinese))
    [4] GB50330—2013 建筑边坡工程技术规范[S]. 2013. (GB50330—2013 Technical code for building slope engineering[S]. 2013. (in Chinese))
    [5] DZ/T 0219—2006 滑坡防治工程设计与施工技术规范[S]. 2006. (DZ/T 0219—2006 Specification of design and construction for landslide stabilization[S]. 2006. (in Chinese))
    [6] 肖世国, 周德培. 非全长黏结型锚索锚固段长度的一种确定方法[J]. 岩石力学与工程学报, 2004, 23(9): 1530-1534. (XIAO Shi-guo, ZHOU De-pei. Calculation method of length of anchoring segment for partial-cohesive cable[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(9): 1530-1534. (in Chinese))
    [7] 张友葩, 高永涛, 吴顺川. 预应力锚杆锚固段长度的研究[J]. 岩石力学与工程学报, 2005, 24(6): 980-986. (ZHANG You-pa, GAO Yong-tao, WU Shun-chuan. Study on bonding length of prestress anchor bar[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(6): 980-986. (in Chinese))
    [8] 黄雪峰, 马 龙, 陈帅强, 等. 预应力锚杆内力传递分布规律与时空效应[J]. 岩土工程学报, 2014, 36(8): 1521-1525. (HUANG Xue-feng, MA Long, CHEN Shuai-qiang, et al. Distribution characteristics and time-space effects of internal force of prestressed anchor rod[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(8): 1521-1525. (in Chinese))
    [9] 郝建斌, 门玉明, 汪班桥. 地层荷载下土层锚杆工作性能试验研究[J]. 岩土工程学报, 2009, 31(2): 247-249. (HAO Jian-bin, MEN Yu-ming, WANG Ban-qiao. Working property of soil anchors under loads on ground surface[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(2): 247-249. (in Chinese))
    [10] 林 杭, 曹 平. 锚杆长度对边坡稳定性影响的数值分析[J]. 岩土工程学报, 2009, 31(3): 470-474. (LIN Hang, CAO Ping. Numerical analysis for effect of bolt length on stability of slopes[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(3): 470-474. (in Chinese))
    [11] 李寻昌, 门玉明, 张 涛, 等. 锚杆抗滑桩破坏模式的试验研究[J]. 岩土工程学报, 2011, 33(5): 803-807. (LI Xun-chang, MEN Yu-ming, ZHANG Tao, et al. Experimental study on failure modes for anti-slide piles with a single anchor[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(5): 803-807. (in Chinese))
    [12] 刘洪佳, 门玉明, 李寻昌, 等. 采用不同滑面材料的滑坡模型试验研究[J]. 灾害学, 2011, 26(1): 10-13. (LIU Hong-jia, MEN Yu-ming, LI Xun-chang, et al. Study on slip material in landslide model tests[J]. Journal of Catastrophology, 2011, 26(1): 10-13. (in Chinese))
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  363
  • HTML全文浏览量:  1
  • PDF下载量:  350
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-09-10
  • 发布日期:  2015-08-24

目录

摘要
HTML全文
    参考文献(12)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    版权所有 © 2010水利部交通部国家能源局南京水利科学研究院 苏ICP备05007122号-11公安联网备案号：32010602011255
    编辑部地址：南京市虎踞关34号《岩土工程学报》编辑部邮编：210024电话：025-85829534，85829556E-mail: ge@nhri.cn