A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Engineering Assessment of Jet Grouting Pressures and Effects in the Elliott Bay Seawall Project
The 2001 Nisqually earthquake demonstrated the seismic vulnerability of the Elliott Bay Seawall in downtown Seattle. The Project is to replace a critical portion of the seawall with a seismically stable structure. A key component of the project is to install over 5000 jet grout columns landward of the new seawall as a mitigation to the liquefiable soils. At the early part of the construction, the jet grouting induced significant ground movement and heave, resulting in instability of adjacent structures. A full-scale field test program was conducted to evaluate the jet grouting in the field. The test consisted of monitoring grouting installation methods, pore water pressures, and lateral ground deformations. The paper presents some key findings and conclusions from the investigation, including (1) the jet grouting pressures under varying field conditions and the resulting ground movements, (2) derivation of the rational jet grouting load criteria for design, (3) evaluation of the ground stability walls during jet grouting, and (4) mitigation measures implemented to ensure stability of the adjacent structure and shoreline.
Engineering Assessment of Jet Grouting Pressures and Effects in the Elliott Bay Seawall Project
The 2001 Nisqually earthquake demonstrated the seismic vulnerability of the Elliott Bay Seawall in downtown Seattle. The Project is to replace a critical portion of the seawall with a seismically stable structure. A key component of the project is to install over 5000 jet grout columns landward of the new seawall as a mitigation to the liquefiable soils. At the early part of the construction, the jet grouting induced significant ground movement and heave, resulting in instability of adjacent structures. A full-scale field test program was conducted to evaluate the jet grouting in the field. The test consisted of monitoring grouting installation methods, pore water pressures, and lateral ground deformations. The paper presents some key findings and conclusions from the investigation, including (1) the jet grouting pressures under varying field conditions and the resulting ground movements, (2) derivation of the rational jet grouting load criteria for design, (3) evaluation of the ground stability walls during jet grouting, and (4) mitigation measures implemented to ensure stability of the adjacent structure and shoreline.
Engineering Assessment of Jet Grouting Pressures and Effects in the Elliott Bay Seawall Project
Yao, Sam (author) / Rudolph, R. William (author) / Galbraith, Julie (author)
Geo-Congress 2020 ; 2020 ; Minneapolis, Minnesota
Geo-Congress 2020 ; 476-484
2020-02-21
Conference paper
Electronic Resource
English
Engineering Assessment of Jet Grouting Pressures and Effects in the Elliott Bay Seawall Project
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