Soil shrinkage and consolidation study on flood embankments in swamp irrigation areas

Q2 Materials Science

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI:10.5267/J.ESM.2021.1.003

L. Afriani, G. Susilo, Sri Nawangrini, Iswan Iswan

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引用次数: 2

Abstract

Research in this paper discusses shrinking and consolidation of flood embankments soil in swamp irrigation areas. The flood embankments are made from swampy soil materials. The focus of this research is the reduction of dyke embankment height that occurs due to soil shrinkage and soil consolidation. Investigations about the time of consolidation and land subsidence that occurred on the embankment at certain periods after the embankment established were also carried out in this study. The research sites are some swamp irrigation areas in the Tulang Bawang Watershed, around North-East Lampung, Indonesia. This research was carried out by conducting laboratory tests on soil samples and field observations on the reduction in height of flood embankments in the study area. The research shows that the main cause of total decrease on the embankment is due to linear shrinkage, consolidation of soil under the embankment, an immediate subsidence, and the subsidence of the embankment themselves. Their contribution to total decrease of embankment is 42.51%, 34.48%, 18.32%, and 4.62%, respectively. Results also indicate that the ratio between the percentage of embankment consolidation in downstream area happen faster than the one in upstream area of the river.

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沼泽灌区洪水堤防土壤收缩固结研究

本文对沼泽灌区防洪堤土的收缩固结进行了研究。防洪堤是用沼泽土材料筑成的。本文研究的重点是由于土壤收缩和固结引起的堤防高度的降低。研究了路基固结时间和路基建成后一定时期路基发生的地面沉降情况。研究地点是印度尼西亚南榜东北部附近的Tulang Bawang流域的一些沼泽灌溉区。本研究是通过对土壤样品进行实验室试验和对研究区防洪堤高度降低的实地观察来进行的。研究表明，路堤总荷载下降的主要原因是直线收缩、路堤下土体固结、路堤立即沉降和路堤自身沉降。对路堤总减少量的贡献分别为42.51%、34.48%、18.32%和4.62%。结果还表明，下游地区的堤防固结率比上游地区的更快。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Engineering Solid Mechanics Materials Science-Metals and Alloys

CiteScore

3.00

自引率

0.00%

发文量

期刊介绍： Engineering Solid Mechanics (ESM) is an online international journal for publishing high quality peer reviewed papers in the field of theoretical and applied solid mechanics. The primary focus is to exchange ideas about investigating behavior and properties of engineering materials (such as metals, composites, ceramics, polymers, FGMs, rocks and concretes, asphalt mixtures, bio and nano materials) and their mechanical characterization (including strength and deformation behavior, fatigue and fracture, stress measurements, etc.) through experimental, theoretical and numerical research studies. Researchers and practitioners (from deferent areas such as mechanical and manufacturing, aerospace, railway, bio-mechanics, civil and mining, materials and metallurgy, oil, gas and petroleum industries, pipeline, marine and offshore sectors) are encouraged to submit their original, unpublished contributions.