Design and Construction of Retaining Structures for Deep Foundation Pit to Protect Limited Width Soil

On the basis of the assumptions of Rankine's earth pressure theory and the Limit Equilibrium theory, the limited width soil is translated into the semi-space soil, so that their horizontal earth pressures are fitted to each other. Then, as an example, a deep foundation pit to protect the limited width soil is designed and constructed according to the software of pit-retaining. In addition, large-angle anchors and double-row piles at certain place are applied in this design. As a result, the monitored horizontal displacements are all within the standard limit of design, therefore it can be a reference for similar projects.