粘土砂在大范围内的动力特性采用动态三轴和共振柱试验

IF 2.5 3区 工程技术 Q2 ENGINEERING, CIVIL
E. Güler, K. B. Afacan
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引用次数: 2

摘要

动力荷载引起的土体变形会对土层上部结构造成破坏。研究反复荷载作用下土体的受力特性及采取相应的预防措施对岩土工程实践具有重要意义。土耳其是欧洲最重要的地震区之一,将在该地区进行的地震研究旨在减少因采取必要措施而造成的损害。为了确定土在动荷载作用下的特性,可以进行应力控制的动三轴和共振柱试验。在本研究中,这些实验是在实验室对从Bilecik Sogut获得的粘土砂土样品进行的。为了研究围压和加载速率对土体动力特性的影响,在不同围压条件下对试样进行了不同加载速率的动态加载。研究了动荷载作用下土体应力-应变特性的变化规律。模量折减比和阻尼比的性能变化随着土侧压力和荷载频率的变化而变化很大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic behavior of clayey sand over a wide range using dynamic triaxial and resonant column tests
Deformations in soils induced by dynamic loads cause damage to the structures above the soil layers. It is important for geotechnical engineering practice that how the soil behaves due to repeated loads and the necessary precautions to be taken accordingly. Turkey is one of the most important seismic regions in Europe and earthquake studies to be conducted in this area are intended to reduce the damage as a result of taking the necessary measures. To determine the properties of soils under dynamic loads, stress-controlled dynamic triaxial and resonant column tests can be performed. In this study, these experiments were implemented in the laboratory on the clayey sand soil samples obtained from Bilecik Sogut. To evaluate the effects of the confining pressure and rate of loading on the dynamic behavior of soils, samples were dynamically loaded by different rates at varying confining pressures. As a result, the changes in stress-strain properties of soils under dynamic loads were investigated. The alteration in behavior in terms of modulus reduction and damping ratios was obtained to vary a lot with the change of the lateral pressure on soil along with the frequency of the load.
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来源期刊
Geomechanics and Engineering
Geomechanics and Engineering ENGINEERING, CIVIL-ENGINEERING, GEOLOGICAL
CiteScore
5.20
自引率
25.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Geomechanics and Engineering aims at opening an easy access to the valuable source of information and providing an excellent publication channel for the global community of researchers in the geomechanics and its applications. Typical subjects covered by the journal include: - Analytical, computational, and experimental multiscale and interaction mechanics- Computational and Theoretical Geomechnics- Foundations- Tunneling- Earth Structures- Site Characterization- Soil-Structure Interactions
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