LIU Jian-hua, WANG You, FU Kang-lin, et al. Force analysis of anchor bolts reinforcing rock slope under simple harmonic vibration load[J]. 2012, 33(S1).
LIU Jian-hua, WANG You, FU Kang-lin, et al. Force analysis of anchor bolts reinforcing rock slope under simple harmonic vibration load[J]. 2012, 33(S1).DOI:
consider simple harmonic vibration of seismic waves. a simplified model of slope bolting support under dynamic loading was established
according to the analysis principles of Pseudo-static. Then
the solutions of slope failure along the slip plane under resonance effect and the expression of internal forces were obtained by using of analytical methods. Based on these
the mechanical solution of bolt is proposed for seismic design. The parameters analysis of the slope bolting support showed that the frequency of seismic waves has a greater impact on sliding displacement amplitudes of damage body. Thus
the resonance phenomenon should be avoided in slope design. Moreover
the bolt spacing has also a greater impact on vibration amplitude of the displacement. As the spacing increases
the displacement amplitude also increases. When bolt spacing is constant
the slope slip displacement increased amplitude is significantly less than other influence parameters with the slope height increasing. With the rock slope angle increases
the displacement amplitude also increased and the bottom slope angle increases from 60° to 90°
the displacement amplitude increases from 7 cm to 25 cm. While the upper slope angle exceeds 25°
the displacement amplitude increases so rapidly that it should be paid enough attention in the design and construction.