Study of mechanical characteristics of short anti-sliding steel pipe pile by physical model test

被引：0
|
作者：
Cai Q. [1 ,2 ]
Li Q.-K. [1 ,2 ]
Shi S.-W. [1 ,2 ]
Zhang Y. [1 ,2 ]
机构：
[1] Technical Center for Geological Hazard Prevention and Control, China Geological Survey, Chengdu, 611734, Sichuan
[2] Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu, 611734, Sichuan
来源：
| 1600年 / Academia Sinica卷 / 37期
关键词：
Heaped load; Landslide thrust; Limit length value of pile; Physical model test; Pile bending moment; Short anti-sliding steel pipe pile; Soil resistance;
D O I：
10.16285/j.rsm.2016.S2.086
中图分类号：
学科分类号：
摘要：
In order to study the mechanical characteristics of short anti-sliding steel pipe pile for stabilizing the slope, four groups indoor physical model tests of short anti-slide steel pipe pile for reinforcing debris landslide with different lengths are conducted in the geological disaster prevention technology center completion of China Geological Survey. Through measuring the soil pressure at the rear and fore of short anti-slide steel pipe pile with stress-strain sensors as the sliding force impelled by the heaped load, observing the deformation and failure of the leading edge of landslide in the whole experimental process, analyzing the distribution of landslide thrust, soil resistance at the fore of steel pipe pile and bending moment of short anti-slide steel pipe pile. The results show that the distribution of landslide thrust and soil resistance at the fore of steel pipe pile are triangular-quadrilateral, bending moment is S-shaped distribution; the maximum bending moment and the critical section of short anti-slide steel pipe pile which are located at the vicinity of the sliding surface. And comparative analysis of mechanical characteristics of short anti-slide steel pipe pile with length changing, the limit length value of short anti-sliding steel pipe pile can be developed which totally play the anti-sliding effect; that the length of short anti-slide steel pipe pile should be not less than ⅔ of the slip thickness. © 2016, Science Press. All right reserved.
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页码：679 / 684
页数：5
相关论文
共 12 条
  • [1] Lei Y., Zheng Y.-R., Chen K.-Q., Inquiring the concept and loading influence of short anti-sliding pile, Chinese Journal of Underground Space and Engineering, 5, 3, pp. 608-615, (2009)
  • [2] Xiao S.-G., Zhou P.-D., Song C.-J., Application of embedded anti-slide pile in high rock slope projects, Chinese Journal of Geotechnical Engineering, 25, 5, pp. 638-641, (2003)
  • [3] Song C.-J., Zhou P.-D., Xiao S.-G., Calculation of internal force of embedded anti-slide pile in high rock slope, Chinese Journal of Rock Mechanics and Engineering, 24, 1, pp. 105-109, (2005)
  • [4] Zhao S.-Y., Zheng Y.-R., Li A.-H., Et al., Application of multi-row embedded anti-slide piles to landslide of Wulong county government, Rock and Soil Mechanics, 30, pp. 160-164, (2009)
  • [5] Lei W.-J., Zheng Y.-R., Feng X.-T., Limit analysis of slope stabilized by deeply buried piles with finite element method, Chinese Journal of Rock Mechanics and Engineering, 25, 1, pp. 27-33, (2006)
  • [6] Lei W.-J., Study on design method of deeply buried piles stabilizing slides and large-scale model test, (2006)
  • [7] Lei W.-J., Zheng Y.-R., Feng X.-T., Study on finite elementdesign method of slope stabilized by deeply buried piles, Chinese Journal of Rock Mechanics and Engineering, 25, pp. 2924-2929, (2006)
  • [8] Song Y.-K., Zheng Y.-R., Lei W.-J., Analysis of the experimental mechanism of deeply buried anti-slide pile by FEM, Rock and Soil Mechanics, 28, pp. 63-68, (2007)
  • [9] Lei Y., Liu G.-Z., Zheng Y.-R., Discussion on interaction of short anti-sliding pile and soil, Journal of Logistical Engineering University, 22, 4, pp. 17-21, (2006)
  • [10] Chen L., On the determination of the embedded anti-slide pile depth through foundation coefficient optimization method, Shanxi Architecture, 36, 23, pp. 149-150, (2010)
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