Centrifuge study on the use of protective walls to reduce tunnelling-induced damage of buildings

• Effect of protective walls on reducing the impact tunnelling piled structures. Protective can reduce induced ground movements retained side. wall could pile settlement and structural distortions. The shaft resistance development. Tunnel excavation in urban areas causes that damage existing nearby In practice, to protect structures from tunnelling-induced damage, a stiff be constructed between tunnel adjacent structure. this paper, results four hybrid geotechnical centrifuge tests (where data are coupled numerical models) used quantify effect an framed building with piles. Two different embedded depths considered: ‘shallow’ its toe at axis depth ‘deep’ below invert. Compared ‘no-wall’ case, is shown significantly uneven settlements, distortions, load transfer (through building) piles; have little benefit. Data instrumented piles explain dominant mechanisms play investigate how redistributed within