Design method of fixed anchor unit for compression dispersion-type anchor

Slope reinforcement was a very important engineering technique.As the complexity of stress adjusting and displacement variation in cut slope,it was not satisfied to use the tension dispersion-type anchor.Many test results showed that the tension dispersion-type anchor could not give enough anchor forces when the length of anchor exceeded 8¹0 meters in broken rock mass.The compression dispersion-type anchor was provided not only with reasonable mechanical behavior,but also with enough anchor forces as well.The mechanism of compression dispersion-type anchor was studied,and a new design method of the compression dispersion-type anchor for broken rock mass slope was proposed.Compared the calculated results with those of in-situ,the new design method was proved to be reasonable and could be applied to the slope reinforcement project.