8 (a)~(d), stage I: before the shield arrive, each measurement point of the monitoring section of DM5 and DM10 showed a trend of slow bulging, and the value of bulging was within + 5 mm, and each measurement point of the monitoring section of DM30 and DM35 showed a trend of slow subsidence, and the value of subsidence was within − 5 mm.
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Measurement analysis of strata deformation caused by construction of quasi-rectangular shield.
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