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Analysis of spacing between anti-slide piles considering soil arch on lateral sides and back

被引：7
|
作者：
Qiu Z.-Y. [1 ,2 ]
Han T.-C. [1 ,2 ]
Dou H.-Q. [1 ,2 ]
Li Z.-N. [1 ,2 ]
机构：
[1] Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou
[2] Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2016年 / 50卷 / 03期
关键词：
Anti-slide pile; Arching effect; Landslide treatment; Reasonable pile spacing;
D O I：
10.3785/j.issn.1008-973X.2016.03.021
中图分类号：
学科分类号：
摘要：
A calculation model considering soil arching behind the pile and soil arching in the pile side working together was established on the basis of numerical simulations by previous studies as well as the interaction between piles and soil, in order to set up a more practical reasonable anti-slide pile spacing calculation formula. The arch axis of soil arching behind the pile and soil arching in the pile side met requirements for the reasonable arch axis. Both the ultimate bearing capacities of soil arch in the pile side and behind the pile were analyzed. With reasonable pile spacing, the summation of both ultimate bearing capacities was equaled to the total load behind the piles. Under this assumption, the formulation was proposed to calculate the reasonable pile spacing. And one case was analyzed according to the non-uniform distribution of landslide thrust along the depth of piles. The calculating results fitted well with engineering practice. At last, some parameters in the formation were analyzed. Results show that the reasonable pile spacing increases linearly with the increase of the section size and cohesion, and increases along the curve with the increase of internal friction angle. © 2016, Zhejiang University Press. All right reserved.
引用
收藏
页码：559 / 565
页数：6
相关论文
共 23 条
  • [1] Terzaghi, Theoretical Soil Mechanics, (1943)
  • [2] Liang R., Zeng S., Numerical study of soil arching mechanism in drilled shafts for slope stabilization, Soil and Foundation, 42, 2, pp. 83-92, (2002)
  • [3] Chen C.Y., Martin G.R., Soil-structure interaction for landslide stabilizing piles, Computers and Geotechnics, 29, 5, pp. 363-386, (2002)
  • [4] Li C.D., Tang H.M., Hu X.L., Et al., Numerical modelling study of the load sharing law of anti-sliding piles based on the soil arching effect for Erliban landslide, China, KSCE Journal of Civil Engineering, 17, 6, pp. 1251-1262, (2013)
  • [5] Li Z.-C., Yang M., Soil arching effect on passive piles and 3-D numerical analysis, China Civil Engineering Journal, 39, 3, pp. 114-117, (2006)
  • [6] Liu Q., Li D.-Y., Liu Z.-X., Et al., Numerical analysis of influence factors on soil arching effect between anti-sliding piles under horizontal pushing loads, Journal of Central South University: Science and Technology, 42, 7, pp. 2071-2077, (2011)
  • [7] Dai Z.-H., Xu X., 3D finite element method for design computations of anti-slide piles, Chinese Journal of Rock Mechanics and Engineering, 31, 12, pp. 2572-2578, (2012)
  • [8] Lirer S., Landslide stabilizing piles: Experimental evidences and numerical interpretation, Engineering Geology, 149, pp. 70-77, (2012)
  • [9] Zhou D.-P., Xiao S.-G., Xia X., Discussion on rational spacing between adjacent anti-slide piles in some cutting slope projects, Chinese Journal of Geotechnical Engineering, 26, 1, pp. 132-135, (2004)
  • [10] Zhao M.-H., Liao B.-B., Liu S.-S., Calculation of anti-slide piles spacing based on soil arching effect, Rock and Soil Mechanics, 31, 4, pp. 1212-1216, (2010)
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