›› 2018, Vol. 39 ›› Issue (10): 3597-3602.doi: 10.16285/j.rsm.2017.0114

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Calculation method of thrust force on the flexible double row long-short piles

SHEN Yong-jiang1, YANG Ming1, 2, XIANG Zheng-liang1, SHEN Yong-zhi3   

  1. 1. School of Civil Engineering, Central South University, Changsha, Hunan 410075, China; 2. Ningbo Urban Construction Design & Research Institute Co., Ltd., Ningbo, Zhejiang 315012, China; 3. Xingtai Jingrun Landscaping Engineering Co., Ltd., Xingtai, Hebei 054000, China
  • Received:2017-03-27 Online:2018-10-11 Published:2018-11-04
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (41102171).

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Abstract: Double row long-short piles are new type of pile foundations, which can make up for the deficiency of common double-row piles and shows a good potential of engineering application. It is important to study the calculation method of landslide thrust. Based on the model of Winkler elastic foundation beam, considering the deformation coordination between the loading segment and anchoring segment and limit equilibrium condition, calculation method of the landslide thrust of the flexible pile is derived. Distribution form of landslide thrust behind the pile is trapezoidal. Comparing the theoretical calculation results and the monitoring data of model test, it is found that the error of the landslide thrust calculation value of rear-row pile is 7% to the experimental results, and the error of fore-row pile is 14.4%. Therefore, it is proved that the calculation method of landslide thrust of the double row long-short piles are feasible.

Key words: landslide, flexible pile, double row long-short piles, trust force

CLC Number: 

  • TU 473.1

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