Acco rding to the theo retica l calculatio n, numerical simula tio n and cent rifug al model test, the pea t soil ro adbed w as reinfo rced w ith crushed stone pi le and sho tcrete pile. Subsidence o f the sof t soi l roadbed w as ef fectiv ely cont ro lled, and a successful ex perience on reinforcing thick peat soil roadbed has been accumula ted fo r the fi rst time.