In this study, firstly, a series of field monitoring data on earth pressure in soft clay, hard clayand sand ground are analyzed respectively. In the soft clay ground, the earth pressure fluctuated with backfillgrouting pressure at first, it settled down toward a steady value between (static vertical pressure Pv0±cohesionC) and distributed uniformly over the ring finally. In the hard clay ground, the earth pressure was more greatlyinfluenced by the backfill grouting, especially for the lateral earth pressure in hard clay with 2C/pv0 ≈0.5. Inthe sand ground, although the earth pressure was also influenced by the backfill grouting, the distribution wasrelatively uniform than in hard clay ground since the hydraulic pressure accounts for a large portion in earthpressure. The insights obtained from this study can contribute to an improvement of load considerations in shieldlining design.
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