Geological surveys are conducted for civil engineering structures such as tunnels, dams, railways, and roads!
"Elastic wave exploration (refraction method)" is a method that observes the propagation of elastic waves, artificially generated by explosions on the surface or underground, as they travel through geological layers, either directly or refracted, using measurement devices installed on the surface. The results are then analyzed to elucidate the underground structure. In Japan, a survey regarding the thickness of riverbed gravel layers for dam construction was conducted in Yamagata Prefecture in 1931, marking the first implementation of refraction seismic exploration in the domestic civil engineering field. This method is almost invariably conducted in geological surveys for civil engineering structures such as tunnels, dams, railways, roads, and land development. 【Implementation Procedure】 ■ Formulation of the survey plan ■ Approval from the client, application for explosives transfer and consumption permit, local negotiations, etc. ■ Surveying and setting measurement lines ■ On-site measurement work *For more details, please refer to the PDF materials or feel free to contact us.
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【Analysis Procedure】 ■Organization of Records ■Reading During Initial Run ■Creation of Run Time Curve ■Check and Adjustment of Run Time Curve ■Analysis of Run Time Curve (Speed Analysis/Depth Analysis) ■Inclination Correction ■Path Calculation and Correction at Speed Profile ■Completion *For more details, please refer to the PDF materials or feel free to contact us.
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【Purpose】 ■Geological surveys for civil engineering structures such as tunnels, dams, railways, roads, and land development. *For more details, please refer to the PDF materials or feel free to contact us.*
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Since our establishment, our company has adhered to the corporate philosophy of "providing accurate and high-quality ground information," offering consistent technology from ground to foundation to building for our customers. In addition, with a broad perspective on the future of society, we are committed to the refinement and development of technology, the sustainable provision of high-quality information, and the training of engineers who support these efforts, contributing to the reduction of our customers' risks and the improvement of their outcomes. Please feel free to contact us if you have any requests.
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