| 膨胀土裂隙演化及其研究方法综述 |
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| 引用本文： | 李子森,崔家全,高佳翔.膨胀土裂隙演化及其研究方法综述[J].西北水电,2021(1). |
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| 作者姓名： | 李子森 崔家全 高佳翔 |
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| 作者单位： | 1.中国电建集团西北勘测设计研究院有限公司 |
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| 摘 要： | 裂隙性是膨胀土的基本特性之一,膨胀土原生裂隙因其所处环境改变时裂隙发生演化,由此引起膨胀土强度衰减和渗透性质增大。文章从裂隙产生及演化机理出发,阐述了膨胀土裂隙在水分、温度及应力作用下的裂隙演化规律,对膨胀土裂隙在宏观、细观、微观尺度进行研究方法概述,分析了裂隙演化对膨胀土工程性质的影响,针对裂隙演化的研究现状,提出了多物理场耦合下宏观与微-细观相结合的综合研究方向。
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| 关 键 词： | 膨胀土 裂隙特征 演化规律 工程性质 |
A Review of the Evolution of Expansive Soil Fissures and Its Research Methods |
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| LI Zisen,CUI Jiaquan,GAO Jiaxiang.A Review of the Evolution of Expansive Soil Fissures and Its Research Methods[J].Northwest Water Power,2021(1). |
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| Authors: | LI Zisen CUI Jiaquan GAO Jiaxiang |
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| Affiliation: | (PowerChina Northwest Engineering Corporation Limited, Xi'an 710065,China) |
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| Abstract: | Fissure is one of the basic characteristics of expansive soil.The original fissure of expansive soil evolves due to the change of its surrounding environment,which causes the strength of expansive soil to attenuate and the permeability to increase.Starting from the generation and evolution mechanism of fissures,the paper expounds the fissure evolution law of expansive soil under the effect of moisture,temperature and stress.It outlines the research methods of expansive soil fissures on the macro,meso and micro scale,and analyzes the influence of fissure evolution on the engineering properties of expansive soil.In view of the current research status of fissure evolution,a comprehensive research direction combining macro and micro-meso under multi-physics coupling is proposed. |
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| Keywords: | expansive soil fissure characteristics evolution law engineering properties |
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