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.

Numerical simulation was conducted for pile-anchor supporting system of deep foundation pit under different lengths,angles and initial anchorage forces of anchor cable based on foundation pit of Beitucheng East Road station in Beijing.

According to the surrounding conditions of the foundation pit of the comprehensive building in Dongying people s hospital,high pressure grouting and underpinning reinforcement,pile-anchor support and composite soil nailing wall,three deformation control methods are used.

The article introduces the application of pile-anchor support system to the retaining of super-deep cut at the old clay area and concludes finally that this system is quite effective.

Currently used methods for designing anchored sheet pile wall for supporting excavation are analyzed in this paper.

The problems in the free and fixed earth support methods for thd design of the anchored sheet pile wall for excavation are briefly discussed.

Finite element method analysis of big and deep excavation engineering in pile and anchor supporting;

Research on the optimal design of anchored piles in row for excavation retainig system with GA;

Co-evolution optimization of anchored piles in row for deep foundation pit;