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Research Article

Development of the Dredged Sediments Management System and Its Managing Criteria of Debris Barrier

사방댐 준설퇴적물 관리시스템 개발 및 관리기준 제안

Young-Suk Song1
,
Jung-Mann Yun2*
,
In-Keun Jung3
송 영석1
,
윤 중만2*
,
정 인근3
1Member, Principal Researcher, Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources, 124 Gwahang-ro, Yuseong-gu, Daejeon 34132, Republic of Korea
2Member, Professor, Department of Construction Information System, ShinAnsan University, 135 Shinansandeahak-ro Danwon-gu, Ansan, Gyeonggi-do 15435, Republic of Korea
3Nonmember, President, KCT E&C, No.606, 30 Gasan digital 1-ro, Geumcheon-gu, Seoul 08591, Republic of Korea
* Corresponding Author
30 December 2018. pp. 267-275
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Abstract

The dredged sediment management system was developed to have an objective, quantitative and scientific decision for the optimum removal time of dredged sediments behind debris barrier and was set up at the real site. The dredged sediment management system is designed and developed to directly measure the dredged sediments behind debris barrier in the field. This management system is composed of Data Acquisition System (DAS), Solar System and measurement units for measuring the weight of dredge sediments. The weight of dredged sediments, the water level and the rainfall are measured in real time using the monitoring sensors, and their data can be transmitted to the office through a wireless communication method. The monitoring sensors are composed of the rain gauge to measure rainfall, the load cell system to measure the weight of dredged sediments, and water level meter to measure the water level behind debris barrier. The management criteria of dredged sediments behind debris barrier was suggested by using the weight of dredged sediments. At first, the maximum weight of dredged sediments that could be deposited behind debris barrier was estimated. And then when 50%, 70% and 90% of the maximum dredged sediments weight were accumulated behind debris barrier, the management criteria were divided into phases of Outlooks, Watch and Warning, respectively. The weight of dredged sediments can be monitored by using the dredged sediment management system behind debris barrier in real time, and the condition of debris barrier and the removal time of dredged sediments can be decided based on monitoring results.

Keywords
Dredged sediment management system
Debris barrier
Management criteria
Removal time of dredged sediments
measurement units

사방댐 배면의 준설퇴적물에 대한 준설시기를 객관적, 정량적, 과학적으로 결정할 수 있도록 준설퇴적물 측정장치를 개발하고 실제 현장에 시범 구축하였다. 사방댐 배면의 준설퇴적물 하중을 측정하기 위하여 준설퇴적물 관리시스템을 설계 및 개발하였다. 본 관리시스템은 Data Acquisition System (DAS), Solar System 및 준설퇴적물 하중변화 측정유닛으로 구성되어 있다. 또한 사방댐 배면의 준설퇴적물 하중, 수위 및 강우량을 실시간으로 측정하고 무선통신을 통하여 자료를 전송할 수 있다. 준설퇴적물 하중변화 측정유닛은 강우를 측정하기 위한 강우계, 사방댐 배면의 준설퇴적물 하중을 측정하기 위한 하중측정계, 사방댐 배면 수위를 측정하기 위한 수위계로 구성되어 있다. 사방댐 배면의 준설퇴적물 관리기준은 준설퇴적물의 하중을 기준으로 제안하였다. 사방댐 배면에 퇴적될 수 있는 최대 준설퇴적물의 양을 산정하고, 최대 준설퇴적물의 50%, 70% 및 90%가 쌓인 경우 관심, 주의 및 경보의 단계로 구분하여 관리기준을 마련하였다. 사방댐 배면의 준설퇴적물 관리시스템을 활용하여 현재 준설퇴적물의 하중을 실시간으로 측정할 수 있으며, 이를 토대로 사방댐의 상태와 준설퇴적물의 준설시기를 결정할 수 있을 것으로 판단된다.

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Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 17
  • No :4
  • Pages :267-275
  • Received Date : 2018-12-07
  • Revised Date : 2018-12-18
  • Accepted Date : 2018-12-19
  • DOI :https://doi.org/10.12814/jkgss.2018.17.4.267
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