Estimating Landfill Height Considering the Heterogeneous Physical Property of Dredging Soil as Reclamation Material

Yoshihisa Sugimura, Yasuhiro Sega, Masaaki Katagiri, Katsuhide Nishizono

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

When pump-dredged clays are discharged into a disposal pond in the sea, soil particles are initially suspending in the water and gradually settles to the sea bottom. According to subsequent discharging, a new sediment is piled on the top surface of the sediment already formed, and the sediment already formed consolidate due to the own weight of new one over a long period of time. To predict the capacity of such disposal pond, it is important to estimate the time-dependent volume change of dredged clays during the reclamation process. In order to estimate the high accuracy the time when the current disposal pond will be full, it is necessary to use the reclamation analysis developed based on a general consolidation theory. In this paper, targeting the S-3 area of Shinmoji-Oki disposal pond project currently underway, we assume that the model of dredged clay deposited in the future on the ground model can be identified by back analysis. Predictive analysis is performed using consolidation parameters assumed from the physical properties of the collected clay, and different filling periods are confirmed due to differences in the physical properties. Furthermore, we also propose a method to improve the prediction accuracy.

Original languageEnglish
Title of host publicationAdvances in Sustainable Construction and Resource Management
EditorsHemanta Hazarika, Gopal Santana Madabhushi, Kazuya Yasuhara, Dennes T. Bergado
PublisherSpringer Science and Business Media Deutschland GmbH
Pages53-61
Number of pages9
ISBN (Print)9789811600760
DOIs
Publication statusPublished - 2021
Event1st International Symposium on Construction Resources for Environmentally Sustainable Technologies, CREST 2020 - Fukuoka, Japan
Duration: Mar 9 2021Mar 11 2021

Publication series

NameLecture Notes in Civil Engineering
Volume144 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference1st International Symposium on Construction Resources for Environmentally Sustainable Technologies, CREST 2020
Country/TerritoryJapan
CityFukuoka
Period3/9/213/11/21

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

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