Advances in Civil Engineering / 2020 / Article / Tab 4

Research Article

Effect of Subway Excavation with Different Support Pressures on Existing Utility Tunnel in Xi’an Loess

Table 4

Parameters of structures of metro tunnel.

Subject (kN/m3) (MPa)Layer (m)

Shield463.842.10E + 050.300.04
Segment252.84E + 040.200.3
Grouting (early)230.90.30
Grouting (late)234000.2

“—” means that the grouting layer completely fills the gap at the shield tail, without a fixed thickness.

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