Analysis and Control of Layer Deformation Induced by the Densely Arranged Large Diameter Underground Steel Tubes Jacking with NTR Method

• DOI: 10.4028/www.scientific.net/amm.744-746.1010
• Publication Date: 2015-03-23T09:53:49Z
• Authors: Chun Fu Jin; Peng Niu; Yong Sheng Zhao; Xuan Wang
• Keywords: Jacking; Groundwater-related subsidence

Combined with the finite element method (FEM) and field data of Shenyang Metro NTR engineering for pipe jacking process, variation surface deformation influence factors construction are systematically analyzed. The result is shown that curves lateral subsidence produced by process accord normal distribution put forward Peck .When top steel pipes jacked , develops rapidly rate larger. In addition grouting behind wall sequence all have a greater impact on layer.