Shanghai's subway construction has entered a new period of rapid development. A notablecharacteristic of subway network construction is that the construction environment is increasingly complex.Take Shanghai subway line 10 as an example, in the position of Shajinggang Bridge on Siping Road, the shieldmachine will have to pass through the bridge's pile foundation. Since the embedded depth of piles has already runthrough the entire tunnel section, these piles have to be pulled out or cut off. But, as one of the main arteries ofShanghai city, Si Ping Road has big traffic flow, and it does not allow the traffic volume to be affected during theconstruction period. What's more, there are intensive residential quarters around the bridge and the constructionspace is limited. Therefore, this paper will mainly introduce how the pile underpinning technology can be usedin the subway construction of Shanghai area for the first time.
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