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DAI Guo-liang, DENG Hui-yuan, GAO Lu-chao, ZHU Ming-xing, GONG Wei-ming. Method for rock-socketed depth of highway bridge piles in mountain areas[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S2): 225-229. DOI: 10.11779/CJGE2018S2045
Citation: DAI Guo-liang, DENG Hui-yuan, GAO Lu-chao, ZHU Ming-xing, GONG Wei-ming. Method for rock-socketed depth of highway bridge piles in mountain areas[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S2): 225-229. DOI: 10.11779/CJGE2018S2045

Method for rock-socketed depth of highway bridge piles in mountain areas

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  • Received Date: July 21, 2018
  • Published Date: October 29, 2018
  • The rock-socketed pile is widely applied in the construction of highways in mountain areas, which has the characteristics of high stability and large bearing capacity. The rock-socketed depth plays a crucial role in the bearing characteristics of rock-socketed piles. A static equilibrium equation is established to obtain the computational model for the minimum rock-socketed depth in which the Hoek-Brown criterion is introduced, and it takes the combination of shear force and bending moment into consideration at the top of rock-socketed section. The feasibility of the proposed method is demonstrated in comparison with other methods, and it may have certain reference value to the design of rock-socketed piles. At the same time, the relationship between shear stress and normal stress of the quartic polynomial fitting rocks is verified to meet the requirements of accuracy and error.
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