RESEARCH ON CONSOLIDATION CHARACTERISTICS AND ORIGIN OF THE YELLOW RIVER ESTUARY SEDIMENTS
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摘要: 以室内固结试验为基础,从含水量、孔隙比、粒度成分、前期固结压力等方面对黄河三角洲沉积物的固结状态进行了研究,发现黄河三角洲地区沉积物垂向上呈现超固结-正常固结-欠固结的趋势,6 m以上沉积物处于超固结状态,这是土体粒度成分和沉积环境的影响等因素共同作用形成的。土体胶结方式的不同和波浪等动力因素的影响深度的不同决定了超固结特征沿深度非均匀化。Abstract: Based on the results of indoor consolidation tests,we analyzed moisture content, porosity ratio, grain size, compression modulus and Pc of the Yellow River soil,and concluded that the soil is in normal consolidation at 6 m depth, and above this critical depth the soil is over-consolidated while beneath it the soil is under-consolidated. And analysis also indicates that formation of the over-consolidation state is attributable to the influence of the cementation effect and sedimentary environment.And the difference in cementation and in impacted depths of the waves decided over-consolidation inhomogeneity at different depths.
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Key words:
- sediments /
- over-consolidation /
- cementation /
- Yellow River estuary
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