자유낙하식 수중 콘관입 시험기의 지반 관입깊이 추정

Title
자유낙하식 수중 콘관입 시험기의 지반 관입깊이 추정
Alternative Title
Estimation of Ground Penetration Depth for Underwater Free Fall Cone Penetration Tester
Author(s)
신창주; 원성규; 권오순; 장인성; 서정민; 강현
KIOST Author(s)
Kwon, Osoon(권오순)Jang, In Sung(장인성)Seo, Jungmin(서정민)Kang, Hyoun(강현)
Publication Year
2019-05-30
Abstract
A track type underwater construction robot was developed by Korea Institute of Ocean Science & Technology (KIOST). In order to operate underwater construction robot on the seabed, it is required to the characteristics of the seabed ground.By this reason, KIOST is developing the free fall cone penetrating tester(FFCPT). FFCPT is a bullet-shaped object with various sensors attached to the con-probe. It drops freely from the sea level to the sea floor and measures the movementand soil resistance and pore water pressure during the time that the object penetrates the seabed. The characteristics of the seabed should be measured with the same sampling as the acceleration because it should be expressed by the physical quantity varying with depth of penetration. The depth of penetration is calculated using the change in acceleration from the impact time whne the FFCPT hit the ground to the final arrest time by the penetrated ground. In lab test, penetration depth can be estimated under a 12% error level.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22592
Bibliographic Citation
2019 한국수중수상로봇기술연구회 춘계학술대회, pp.62 - 64, 2019
Publisher
한국수중수상로봇기술연구회
Type
Conference
Language
Korean
Publisher
한국수중수상로봇기술연구회
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