| 海积软土固结过程中微观结构变化特征分析 |
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| 引用本文： | 房后国,刘娉慧,袁志刚.海积软土固结过程中微观结构变化特征分析[J].水文地质工程地质,2007,34(2):49-52,56. |
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| 作者姓名： | 房后国 刘娉慧 袁志刚 |
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| 作者单位： | 1. 黄河勘测规划设计有限公司工程技术研究中心,郑州,450003
2. 华北水利水电学院岩土工程系,郑州,450008 |
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| 摘 要： | 本文通过不同固结压力下海积软土所得的SEM照片，采用结构单元体和孔隙的大小、形态及定向性参数，分析了海积软土在固结过程中微结构的变化特征。发现随着固结压力的增大，不同类型的孔隙反映不同，含水类型也随之改变，孔隙形状变得细长，但定向性变化不大；结构单元体在固结过程中不断变大，平面形状以扁椭圆形为主，定向排列越来越明显。
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| 关 键 词： | 海积软土 固结 微观结构 定量分析 |
| 文章编号： | 1000-3665（2007）02-0049-04 |
| 修稿时间： | 2006-07-202006-10-24 |
Analysis on characteristics of microstructure change during marine soft soil consolidation |
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| FANG Hou-guo,LIU Ping-hui,YUAN Zhi-gang.Analysis on characteristics of microstructure change during marine soft soil consolidation[J].Hydrogeology and Engineering Geology,2007,34(2):49-52,56. |
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| Authors: | FANG Hou-guo LIU Ping-hui YUAN Zhi-gang |
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| Institution: | 1. Technical Research Center, Yellow River Engineering Consulting Co. ,Ltd, Zhengzhou 450003, China ; 2. Geotechnical Engineering Department, North China University of Water Conservancy and Electric Power, Zhengzhou 450008, China |
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| Abstract: | Practices in many soft foundation treatment cases showed that theoretical calculation value difiers greatly from observed value whether consolidation deformation quantity or consolidation deformation progrecess with time. Based on SEM photos obtained from marine soft soil under different consolidation pressures, structure unit, pore size and shape and quantized directional parameters were used to analyze characteristics of microstructure change during marine soft soil consolidation. We found that pores in different types have different reflection to the increase of consolidation pressure, covering changing of water containing type, flatting of pore shape, without great directional change; structure unit keeps bigger during consolidation, and plane shape appeares mainly as flat ellipse, featuring more and more obvious directional ranging. |
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| Keywords: | marine soft soil consolidation nficrostructure quantitatives analysis |
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