Monitoring for Constructed Revetments Using Biopolymer Mixed Soil

Kim, Myounghwan, Lee, Du Han

doi:10.12652/Ksce.2021.41.6.0645

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2021 Vol.41, Issue 6 Preview Page Next Page

Water Engineering

Monitoring for Constructed Revetments Using Biopolymer Mixed Soil 바이오폴리머 배합토를 이용한 호안 조성과 모니터링

1 December 2021. pp. 645-653

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Abstract

바이오폴리머는 살아있는 유기체에 의해 생성되는 고분자 화합물의 통칭이다. 이 중 미생물의 부산물로 만들어지는 유기성 고분자 화합물인 잔탄, 베타글루칸 등은 물질의 점성을 높이는데 사용되는데 이를 물에 희석하여 모래나 진흙과 혼합하면 압축강도와 전단강도를 높일 수 있다. 본 연구에서는 특수하게 흙의 강도를 높이기 위한 목적으로 개발된 잔탄 및 베타글루칸 계열의 바이오폴리머와 흙을 혼합하여 제조한 배합토를 하천 제방 호안에 도포하고 겨울을 지낸 후의 변화를 3차원 지상 LiDAR를 활용하여 모니터링 하였다. 동절기 전후 지상 LiDAR 측량을 통하여 취득한 3차원 점군자료를 이용하여 테스트베드 주요 구간의 변화를 분석한 결과 바이오폴리머 배합토를 도포한 두 구간에서는 눈으로는 확인하기 어려울 정도로 변화가 없었던 반면 바이오폴리머 배합토를 사용하지 않은 자연제방 구간에서는 세류침식(Rill erosion)으로 인한 토양손실이 확인되었다.

키워드

바이오폴리머

LiDAR

점군자료

제방 호안

침식

Biopolymer is a general concept for high molecular compounds produced by living organisms. Among them, the xanthan and β-glucan, which are organic polymer mixture produced by micro-organisms, are mainly used to increase the viscosity of a substance. And diluting in water and mixing with sand or clay can increase compressive strength and shear strength. In this study, mixed soil prepared by mixing soil with xanthan and beta-glucan based biopolymers specially developed for the purpose of increasing soil strength was applied to the river bank revetment, and changes during winter were measured using ground LiDAR. As a result of analyzing winter changes in major sections using three-dimensional point cloud data obtained through ground LiDAR, there were no changes to the extent that it was difficult to confirm with the naked eye in the two sections coated with biopolymer blended soil. However, soil loss due to Rill erosion was confirmed in the natural embankment section where biopolymer blended soil was not used.

Keywords

Biopolymer

LiDAR

Point cloud

Levee revetment

Erosion

References

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Information

Publisher :Korean Society of Civil Engineers
Publisher(Ko) :대한토목학회
Journal Title :KSCE JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING RESEARCH
Journal Title(Ko) :대한토목학회 논문집
Volume : 41
No :6
Pages :645-653
Received Date :2020. 11. 24
Revised Date :2021. 01. 04
Accepted Date : 2021. 10. 27
DOI :https://doi.org/10.12652/Ksce.2021.41.6.0645

KSCE JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING RESEARCH ISSN:1015-6348(Print) 2287-934X(Online) 대한토목학회 논문집

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