Geological and geotechnical risk management

Construction / city development field20230403

We provide optimal geological risk management in accordance with guidelines based on specialized and cutting-edge knowledge and technology related to geology, thereby supporting the smooth progress of our customers' businesses.

Field:: Infrastructure Maintenance, Management, and Renovation ＞ Construction / city development field

Keyword:

Overview
Features
Achievements

Overview

"Geological and geotechnical risk" refers to the invisible "uncertainties" inside the ground that may cause cave-ins, sinkhole accidents, ground subsidence, etc., during underground excavation and other similar work.
Through 3D visualization of geotechnical and geological structures, 3D geological analysis technology is a solution for reducing uncertainty and preventing accidents and disasters caused by geological and ground factors.
OYO Group proposes geological and geotechnical risk management with the aim of increasing productivity throughout the entire construction and production process. Specifically, we engage in measures such as extracting geological and ground risks from the business planning stage, promoting risk communication from the stages of survey, design, construction, and maintenance management, optimizing business costs, and preventing construction delays.

Features

Geological risk management provided by the OYO Corporation

Preliminary risk assumptions and management methods proposals based on geological expertise

We evaluate the terrain and geology of candidate sites from the business planning stage, and propose the necessary risk communication methods and management plans.

Using 3D technology to visualize geological risk, also linked to BIM / CIM

Using the latest 3D geotechnical analysis technology to visualize hidden geological and geotechnical risks. We propose appropriate countermeasures that are neither excessive nor deficient. We also link our technology with BIM / CIM for building 3D geological models.

Creation of a management chart that assumes multifaceted risks. Proposals for monitoring

Based on the assumed geological features, we organize risks that may occur in the succession process and methods for dealing with those risks. If there is residual risk, we propose appropriate monitoring methods.

By having expert geological engineers extract geological risks at the applicable site from the initial phase of business planning, OYO Group is able to increase productivity throughout the entire construction and production process. Specifically, we enable smooth risk communication from the stages of survey, design, construction, and maintenance management, optimization of business costs, and prevention of construction delays.

3D geotechnical analysis technology that can be linked to BIM / CIM

Example of bypass construction project

Exploration results of 3D microtremor array survey (bird's-eye view)
Representation of the alluvium bottom surface

Elevation contour of the alluvium bottom face

Example of tunnel business

Use of airborne electromagnetic survey method to integrate of 3D resistivity model of planned tunnel routes and faults from the previous literature

3D airborne electromagnetic survey

Achievements

Fiscal Year	Orderer	Subject
2016	Kinki Regional Development Bureau Kinan River National Highway Office	Susami Kushimoto Road and other geological risk studies in the eastern district
2017	Hokkaido Regional Development Bureau Otaru Development and Construction Department	National Route 5 Formulation of geological survey plan for outside Kutchan Town
2018	Minister's Secretariat Technical Research Division	FY2018 Surveying and studies for establishing technical methods for geological and geotechnical risk management
2018	Kinki Regional Development Bureau Kinki Technical Office	Creation of basic materials related to geological risk management
2018	Shikoku Regional Development Bureau Nakamura River National Highway Office	Geological survey work for surface of Saga Ogata Road
2019	Shikoku Regional Development Bureau Nakamura River National Highway Office	FY2019 Surveying and studies for geological risks outside of Saga Ogata Road
2019	Kinki Regional Development Bureau Kinki Technical Office	Revision of manuals on geological risk management
2019	Minister's Secretariat Technical Research Division	FY2019 Surveying and studies for establishing technical methods for geological and geotechnical risk management
2019	East Nippon Expressway Co., Ltd. Niigata Branch Office	FY2019 Studies on geological risks in the jurisdiction of Niigata Branch Office
2019	East Nippon Expressway Co., Ltd. Tohoku Branch Office	FY2019 Studies on western geological risks in the jurisdiction of the Tohoku Branch Office
2020	Kinki Regional Development Bureau Wakayama River National Highway Office	Geological evaluation and analysis in the jurisdiction of the Wakayama River National Highway Office
2020	Chugoku Regional Development Bureau Fukuyama River National Highway Office	FY2020 Studies on geological risks of Fukuyama Road
2021	East Nippon Expressway Co., Ltd. Hokkaido Branch Office	Studies on geological risks of Do-O Expressway
2021	Kinki Regional Development Bureau Kinki Technical Office	Statistical studies on geological risks
2021	Kyushu Regional Development Bureau Miyazaki River National Highway Office	FY2021 Analysis and studies of Higashi Kyushu Road soil
2021	Minister's Secretariat Technical Research Division	FY2021 Surveying and studies for establishing technical methods for geological and geotechnical risk management
2022	Minister's Secretariat Technical Research Division	FY2022 Surveying and studies for establishing technical methods for geological and geotechnical risk management