Open AccessApplication and Deformation Control of Pile-anchor Support for Deep Foundation Pit in Soft Soil Area
Author(s) -
Wennan Lu,
Ling Zhao,
Kai Wang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/526/1/012221
Subject(s) - foundation (evidence) , excavation , pile , geotechnical engineering , deformation (meteorology) , engineering , plan (archaeology) , geology , paleontology , oceanography , archaeology , history
Based on the engineering practice of deep foundation pit project in a coastal area, design plan and conceptual method for control the deformation of pile-anchor support system for foundation pit were introduced. The methods for insurance of the stability and decreasing the influence to the surrounding structures during excavation of the foundation pit were as below: increasing the excavation area with considering the position of seepage cutoff wall and construction road to reduce the earth pressure; evaluating the deformation of the stratum and support structure during excavation of pit by 3-D numerical simulation; using site test to provide guideline for construction of the jet grouting anchor; employing dynamic monitoring to provide the early warning. The application of the design can provide reference for similar projects.