Abstract:In recent years, the number of urban rail transit construction projects in China is increasing, and the subway construction projects in the complex urban environment are more common. More and more projects crossing buildings and structures in very short distance are frequently seen. The construction conditions are becoming more complex, which puts forward more refined requirements for the shield construction technology. Taking the shield tunneling construction of the Jingan Temple Station - South Huangpi Road Station in Bid 9 of Shanghai Metro Line 14 as an example, the key construction technologies in the construction process are analyzed, which provides the reference for shield tunneling construction projects under similar extreme and complex construction conditions.