Abstract: Since the tunnel from Longhualu station to Longchaolu station of Shanghai metro line 12 would pass underneath a thousand-year old monastery—the Longhua Temple—the shield was refitted by adding more grouting holes on the segments before tunneling in order to reduce the settlement and incline of the Longhua Pagoda. With the application of balanced construction and refined management, as well as the adoption grouting reinforcement method after completion of the undercrossing construction, the Longhua pagoda was kept safe and stable while the construction of the subway tunnel was successfully completed.