Geophysical exploration technology service "Tunnel Shallow Reflection Method Exploration (SSRT)"
It is a face-forward exploration technology using the VSP processing method.
The "Shallow Seismic Reflection Survey for Tunnel (SSRT)" is a technology that uses elastic waves to predict the geology ahead of a tunnel face. It was jointly developed with Fujita Corporation for the purpose of exploring the area in front of the tunnel. Since it is possible to select artificial seismic sources (hydraulic impactors, vibrators, blasting sources) according to the conditions of the tunnel site being excavated, there are no limitations on the applicable tunnels. For example, it can also be implemented in mechanically excavated tunnels that include Tunnel Boring Machines (TBM). 【Features】 - It can be conducted outside the tunnel construction site before excavation. - Exploration is possible in hard rock formations, soft ground, tunnel entrance areas, and low cover sections. - Since exploration behind the tunnel face is also possible, it allows for a more accurate evaluation of forward exploration by comparing it with excavation results. For more details, please contact us or download the catalog.
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basic information
【Project】 ○ Field Survey (Team Leader or 1 Measurement Person) ○ Exploration (Team Leader, Measurement, Machinery, QC - 3-4 members) → Day 1 (Saturday): Entry, Equipment Delivery, Measurement Line Confirmation, Installation of Surface Equipment → Day 2 (Sunday): Deployment, Data Acquisition, Dismantling → Day 3 (Monday): Equipment Shipping, Departure (except QC), Preliminary Data Processing (QC) → Day 4 (Tuesday): Preliminary Data Processing, Result Confirmation, Client Reporting ○ Report Preparation 【Exploration Specifications】 ○ Distance between Seismic Source and Receiver: 1.2 to 1.5m ○ Number of Seismic Sources and Receivers: 24 points (+Offset) ○ Receivers: 100Hz, 10Hz (Surface) ○ Seismic Sources: Small Hydraulic Impactor, Vibrator, Explosives (100g) ● For more details, please contact us or download the catalog.
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Company information
The Earth Science Comprehensive Research Institute, Inc. was established in April 1983 as a specialized technical service company in the field of applied earth sciences, equipped with advanced technical capabilities and the latest facilities, centered around engineers with extensive experience in physical exploration, fully funded by Japan Petroleum Exploration Co., Ltd. We conduct various physical explorations aimed at resource development of oil and natural gas both domestically and internationally, while also engaging in research and development related to fundamental and applied technologies, including remote sensing technology for exploring the Earth from space. Currently, we provide consulting services not only in the field of oil and natural gas exploration and development but also in the exploration of underground resources such as geothermal energy, as well as large-scale crustal surveys and geological surveys for earthquake disaster prevention. We are committed to the development of related technologies and are also advancing research into applications in civil engineering, construction, ground surveys, and environmental surveys. Additionally, we independently develop physical exploration equipment, including earthquake monitoring systems, and data processing and analysis systems, making improvements to meet the increasingly challenging topographical, geological conditions, and regional environmental needs of survey sites, earning high recognition both domestically and internationally. As one of the few comprehensive technical service companies exploring the Earth, we will continue to develop and enhance our technologies in the future.