Design Points of Pile-anchor Supporting in Deep Foundation Ditch

The pile-anchor supporting system is one of the common forms of the supporting systems in deep foundation pitch, the distribution of its earth pres sure is determined by Coulomb's (or Rankine's) earth pressure theory, and the ca lculation of the wall pile is made with the equivalent beam method. This paper i ntroduces the design points of the pile-anchor supporting system, including the calculation of the earth pressure, the calculation of the cantilever pile, the calculation of the single-layer anchor wall pile, and multi-layer anchor wall pile, etc.