Jaewon Saw

Visit by state assembly members Buffy Wicks, Pilar Schiavo, and Juan Alanis

The Center for Smart Infrastructure (CSI) recently hosted a visit by State Assembly Members Buffy Wicks, Pilar Schiavo, and Juan Alanis. During the visit, CSI provided an overview of its ongoing initiatives related to water infrastructure, natural disasters, and wildfire evacuation, and discussed the issues that the state is currently facing in these areas. The highlight of the event was a large-scale 4-point bending testing… Read More »Visit by state assembly members Buffy Wicks, Pilar Schiavo, and Juan Alanis

Invited talk at the Annual Congress of the Geotechnical Engineering Society Indonesia

Dayu Apoji was invited to talk at the Annual Congress of the Geotechnical Engineering Society Indonesia (HATTI), which was held in Jakarta on November 9, 2023. His presentation, titled “Applications of Machine Learning in Geo-Engineering, with an Emphasis on Tunneling Research,” focused on various machine learning applications in tunneling. These applications, developed over recent years at UC Berkeley, include real-time geological interpretation, real-time geological anomaly… Read More »Invited talk at the Annual Congress of the Geotechnical Engineering Society Indonesia

Paper: Envisioning a Transformation in the Future of Tunneling

Our group has recently published a paper titled “Shaping the Future of Tunneling with Data and Emerging Technologies,” authored by Dayu Apoji, Prof. Kenichi Soga, and Prof. Brian Sheil of The University of Cambridge, UK, in the Data-Centric Engineering Journal. This work envisions the potential integration of advanced technologies, such as artificial intelligence (AI), autonomous systems, and bio-inspired designs, as key enablers to revolutionize the… Read More »Paper: Envisioning a Transformation in the Future of Tunneling

SRG at the 7th Annual GeoSymposium

On November 17th, 2023 at the 7th Annual UC Berkeley Geotechnical Engineering Research Symposium, Jaewon presented as a Keynote Speaker on the “Monitoring Capabilities of Distributed Fiber Optic Sensing for Hydraulic Fracturing“. Opening with an overview of the distributed fiber optic sensing (DFOS) technology, Jaewon shared insights from a case study in Austin Chalk / Eagle Ford Shale, where DFOS was deployed to monitor temperature,… Read More »SRG at the 7th Annual GeoSymposium

Geothermal-based Optimized Energy System (GOES) Workshop

Soga Research Group (SRG) collaborated with Lawrence Berkeley National Laboratory (LBNL) to host the second workshop of the GOES project at the Berkeley campus from September 25 to 27, 2023. Participating research teams from various countries presented updates on a range of topics, such as the full-physics modeling framework, city-scale geothermal modeling, underground coupling, and the Platform-Based Design (PBD) framework. Notably, SRG showcased its ongoing… Read More »Geothermal-based Optimized Energy System (GOES) Workshop

Learning from the Ground Up (LeGUp)

In Framingham, MA, a pioneering “Networked Geothermal” project is underway to explore the potential of shallow geothermal for district heating and cooling, aiming to lower carbon emissions. During 2022 and 2023, SRG carried out four distributed thermal response tests to evaluate the geothermal capabilities of the site. Presently, SRG is collaborating with HEET to design and install a distributed fiber optic sensing (DFOS) system in… Read More »Learning from the Ground Up (LeGUp)

Deformation Monitoring of Tunnel using Phase-based Motion Magnification and Optical Flow

During construction, continuous monitoring of underground tunnels can mitigate potential hazards and facilitate an in-depth understanding of the ground-tunnel interaction behavior. Traditional vision-based monitoring can directly capture an extensive range of motion but cannot separate the tunnel’s vibration and deformation mode. Phase-based motion magnification (PMM) is one of the techniques to magnify the motion in target frequency bands and identify system dynamics. Optical flow (OF)… Read More »Deformation Monitoring of Tunnel using Phase-based Motion Magnification and Optical Flow

Monitoring ground anchors with distributed fiber optic sensing

The Soga Research Group/Center for Smart Infrastructure is working with Caltrans to develop a cutting-edge distributed fiber optic sensing system for monitoring ground anchors. The primary goal is to quantify the distributed soil-grout-anchor interaction and load/stain transfer mechanism in various ground conditions during construction, pull-out testing, and long-term service life. Field monitoring data combined with numerical modeling analysis will be used to improve design protocols… Read More »Monitoring ground anchors with distributed fiber optic sensing

DFOS-embedded Drilled Column Load Testing for CALTRANS Eureka

The UC Berkeley team participated in a full-scale field test of grout piles using Distributed Fiber Optic Sensing (DFOS) to measure strain and temperature development throughout the project. The project involved the construction and load testing of 5 drilled grout columns for a Caltrans embankment construction project in Indianola, CA. The types of monitoring performed by the UC Berkeley team included Distributed Strain and Temperature… Read More »DFOS-embedded Drilled Column Load Testing for CALTRANS Eureka

Jaewon and Linqing in Monterey Bay

From August 22nd to August 24th, Jaewon (DAS lead) and Linqing (cruise leader) conducted data acquisition on a research vessel in Monterey Bay. The objective was to capture the ocean soundscape using Distributed Acoustic Sensing (DAS) and, in particular, to record vocalizations from the whale species in the Monterey Bay National Marine Sanctuary. We thank our colleagues at Lawrence Berkeley National Laboratory, Naval Postgraduate School,… Read More »Jaewon and Linqing in Monterey Bay