Komori
Kumagai Gumi (1861) · InitiativeFirst stated

Confirming bearing strata by measuring drilling resistance in the earth-drill method

First written in FY2023. . Latest entry: FY2023.

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Bearing Stratum Confirmation Technology Using Earth Drill Excavation ResistanceA theme 1 companies write about · 0 as a headwind · 1 as a tailwind

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  1. FY2023First statedAnnual report

    「This technology measures drilling data, including drilling depth, rotational torque and rotational speed, during shaft excavation and continuously calculates a value defined as drilling resistance. It uses quantitative comparisons with the N-values obtained from standard penetration tests as a basis for confirming the bearing layer.」

    The Company developed technology to calculate drilling resistance from drilling depth, rotational torque and rotational speed to improve the reliability of bearing-layer confirmation. It obtained construction-technology review certification in August 2022 and is developing a real-time display system for field use.
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