Project Design and Engineering Tech. for Deep Foundation Pit Support in Beijing Jiacheng Plaza

Abstract:

Application of combination of slop shield piles, soil block wall, pre-stressed anchor, pressure grouting, especially the combination of soil block wall and pile anchor, changed the conventional design consideration of controlling deformation by rigidity pivot. Using elasticity pivot method to design the slop shield piles and anchor within the limitation of deformation permission has greatly deduced the cost of project, and ensured the security, reliability and economy of pit support system. The design, main technical measures, and several conclusions of the project method mentioned above were also introduced.