Artificial Ground Freezing: A Smart Application Below The Airport Of Perth

Deep Foundations Institute
Luca Pingue Carlandrea Albonico Regine Jagow-Klaff Rudolf Wernecké Franco Muratore Damiano Frontini
Organization:
Deep Foundations Institute
Pages:
10
File Size:
4054 KB
Publication Date:
May 1, 2022

Abstract

This paper describes an artificial ground freezing (AGF) application carried out to ensure both watertightness and structural support for the safe excavation of four cross passages of the Forrestfield Airport Link (FAL) project in Perth. The line will deliver 8.5 km extension of the existing urban rail network connecting the growing eastern suburbs of Perth with the existing suburban rail network. The proposed soil improvement technique is adopted as a smart alternative to jet grouting from the surface since the use of heavy equipment with long vertical mast was not allowed due to the line underpassing an airport in operation. In this paper, details of the challenges and lessons learned during both design and construction phases are given. Furthermore, it is described the geometry and the installation of freeze pipes in presence of a massive steel frame, ventilation system and slurry pipes of the tunnel boring machine (TBM) in operation. It is also illustrated the web monitoring system to allow key personnel to follow in real time the development of soil temperatures, tunnel convergences and ground surface deformations as well as changes in the interaction between international parties involved due to the COVID-19 pandemic.
Citation

APA: Luca Pingue Carlandrea Albonico Regine Jagow-Klaff Rudolf Wernecké Franco Muratore Damiano Frontini  (2022)  Artificial Ground Freezing: A Smart Application Below The Airport Of Perth

MLA: Luca Pingue Carlandrea Albonico Regine Jagow-Klaff Rudolf Wernecké Franco Muratore Damiano Frontini Artificial Ground Freezing: A Smart Application Below The Airport Of Perth. Deep Foundations Institute, 2022.

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