On-The-Job Training to Recognize Nontectonic Structures in the Field: A Tentative Case Study of In-House Continuing Professional Educations for Engineering Geologists

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  • 現場でノンテクトニック構造を識別する場としてのOJT：地質技術者の企業内継続教育の試行事例
  • ゲンバ デ ノンテクトニック コウゾウ オ シキベツ スル バ ト シテ ノ OJT : チシツ ギジュツシャ ノ キギョウナイ ケイゾク キョウイク ノ シコウ ジレイ

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Abstract

<p>OYO Corporation is engaged in in-house education by providing on-the-job training（OJT） for geological engineers to identify non-tectonic structures in the field. The goal of the education is to have the engineers acquire the skills necessary to assess gravity-driven landslides and loosening of rocky slopes. Although geological surveys are critical in running survey of landslides, OYO emphasizes on close observation of nontectonic structures in outcrops and boring cores. Plural parties of paired trainers and trainees conducted geological survey of dam reservoir slopes as OJT to inherit and improve the skills of fieldworks, including geological mapping, distinguishing between tectonic faults and landslide slip surfaces through composite planar fabric of fracture zones, and recognition of infiltration clays as an indicator of landslides and loosening. Technical skills are not necessarily proportional to years of experience; trainers and trainees are interactive and may be compatible; the trainers are tried and tested by the trainees and vice versa. The improvement and establishment of skills take a certain amount of experience; the effects of short-term, single OJT are limited; repeated and continuous engagement in training is necessary. Such OJTs not only function as a form of in-house technical education through discussions and collaborations during field surveys but also encourage engineers to share geological perspectives.</p>

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