An Investigation on the Influences of Construction Schemes on Backfilling the River-Crossing Section of a Utility Tunnel

<div>Backfill process. (a) Before backfilling of the integrated pipe corridor. (b) After backfilling of the integrated pipe corridor. (c) After backfilling of the integrated pipe corridor pit.</div>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: An Investigation on the Influences of Construction Schemes on Backfilling the River-Crossing Section of a Utility Tunnel 