Bodhinanda Chandra

Our research on ML for Tunneling is highlighted by Sixense Group

Our research on the application of AI and ML for tunneling is highlighted by Sixense Group. In brief, Dayu Apoji, a Ph.D. researcher in our group, is trying to build “a brain” for tunnel boring machines (TBM) using machine learning algorithms so that this giant machine can make perception from enormous tunneling data (both from the machine sensors and ground instruments) and assist TBM operators… Read More »Our research on ML for Tunneling is highlighted by Sixense Group

Tracking Cetaceans with Fiber

The California Energy Commission has invested resources in finding innovative ways to monitor future offshore wind infrastructure and its impacts on the environment. A project led by LBNL is looking at if distributed fiber optic sensing (DFOS), and in particular distributed acoustic sensing (DAS) can be used to both monitor the structural components of these turbines and detect cetaceans that may enter the perimeter of… Read More »Tracking Cetaceans with Fiber

Open-Source Release of Anura3D MPM Software

On April 30th 2021, the Anura3D Research Community released the source code of their collectively developed Material Point Method (MPM) Software. The Anura3D MPM Research Community consists of a group of researchers and faculty from European and American universities, including UC Berkeley, and one independent institute that since 2014 jointly investigate the application of the MPM in geotechnics and soil-water-structure interaction problems. A Ph.D. candidate… Read More »Open-Source Release of Anura3D MPM Software

2020-2021 Civil & Environmental Engineering Outstanding GSI Award for Peter and Joel!

Peter and Joel from our group have been awarded the departmental Outstanding GSI Award for the academic year 2020-2021. Since joining our group in 2018, Peter has been a GSI for CE179 (Fall 2018) and CE273 (Spring 2019, Spring 2020). Meanwhile, Joel had the opportunity to GSI three different Geotechnical Engineering classes: CE175 (Spring 2020), CE270 (Fall 2020), and CE273 (Spring 2021). These are some… Read More »2020-2021 Civil & Environmental Engineering Outstanding GSI Award for Peter and Joel!

SRG Group Portrait 2021

Some of the Soga Research Group members pose for a socially-distanced group portrait at the Berkeley Rose Garden in Berkeley, Calif. on Monday, March 8, 2021. We also welcome Miguel, a Ph.D. student from Universidad Politécnica de Madrid, who will be joining our group as a visiting researcher for the upcoming 6 months. (Photos by Adam Lau/Berkeley Engineering)

Context-specific volume–delay curves by combining crowd-sourced traffic data with automated traffic counters: A case study for London

The city-scale research team recently published a paper in the Cambridge Journal of Data-Centric Engineering that uses innovative sources of real-world data to calibrate a widely used empirical relationship in traffic engineering [1]. The paper aims to address the difficulty of calibrating the macroscopic relationship between traffic volume and speed. Specifically, it combines the traffic volume data from Transport for London’s Automated Traffic Counters (Figure… Read More »Context-specific volume–delay curves by combining crowd-sourced traffic data with automated traffic counters: A case study for London

Crack development monitoring using distributed fiber optic sensing technology

Cracking in clay is an important phenomenon that affects the long-term durability of many civil structures such as dams, levees, embankments, and landfills. In order to understand the behavior of cracking in clay, researchers at SRG, Hayato Nonaka and Yaobin Yang, conducted a four-point bending experiment on compacted kaolin clay beams. Distributed fiber optic sensors (DFOS) were embedded in the clay specimens at different heights… Read More »Crack development monitoring using distributed fiber optic sensing technology

A recently published work on Fiber Optic Sensor

Linqing Luo and Prof. Kenichi Soga from our group recently published a paper in Journal of Lightwave Technology. Y. Mei, X. Xu, L. Luo and K. Soga, “Reconstruction of Distributed Strain Profile Using a Weighted Spectrum Decomposition Algorithm for Brillouin Scattering Based Fiber Optic Sensor,” in Journal of Lightwave Technology, vol. 38, no. 22, pp. 6385-6392, 15 Nov.15, 2020, doi: 10.1109/JLT.2020.3011686. Brillouin scattering based fiber optic… Read More »A recently published work on Fiber Optic Sensor

Testing a Distributed Monitoring System for EBMUD’s Water Mains

The bay area has several active seismic faults. In order to supply water for its 1.4 million customers, the East Bay Municipal Utility District (EBMUD) must maintain pipe infrastructure that cross these hazards. Researchers at SRG have been working with EBMUD to develop a monitoring system for the most critical pipes in the east bay’s water supply network. Recently, a bending test was conducted at… Read More »Testing a Distributed Monitoring System for EBMUD’s Water Mains