Cyclic undrained properties of stabilised expansive clay with lignosulfonate

IF 1.7 Q3 ENGINEERING, GEOLOGICAL

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-02-24 DOI:10.1080/17486025.2022.2043455

B. Ta'negonbadi, R. Noorzad, Mehran Ta’Negonbadi

引用次数: 1

Abstract

ABSTRACT In this work, the influence of lignosulfonate (LS), which is a by-product of timber and paper industries, on the cyclic characteristics of expansive clay was investigated by conducting cyclic triaxial tests. Test findings showed that cyclic stress ratio (CSR) substantially influenced liquefaction resistance of treated soil samples such that, at CSR = 0.2, none of the specimens were liquefied, whereas, at CSR = 0.4, all of the specimens were liquefied. Furthermore, liqueaction resistance was enhanced by decreasing the sample moisture content. Due to a stabilisation effect, the secant shear modulus increased by up to about 64%, and the damping ratio decreased by up to about 22%.

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木质素磺酸稳定膨胀粘土的循环不排水特性

摘要本文通过循环三轴试验研究了木材和造纸工业的副产物木素磺酸盐(LS)对膨胀粘土循环特性的影响。试验结果表明，循环应力比(CSR)对处理后土样的抗液化能力有显著影响，当CSR = 0.2时，所有土样均不液化，而当CSR = 0.4时，所有土样均液化。此外，降低样品的含水率可以提高其抗液化能力。由于稳定效应，割线剪切模量增加了约64%，阻尼比降低了约22%。

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

Geomechanics and Geoengineering-An International Journal ENGINEERING, GEOLOGICAL-

CiteScore

3.80

自引率

0.00%

发文量

期刊介绍： Geomechanics is concerned with the application of the principle of mechanics to earth-materials (namely geo-material). Geoengineering covers a wide range of engineering disciplines related to geo-materials, such as foundation engineering, slope engineering, tunnelling, rock engineering, engineering geology and geo-environmental engineering. Geomechanics and Geoengineering is a major publication channel for research in the areas of soil and rock mechanics, geotechnical and geological engineering, engineering geology, geo-environmental engineering and all geo-material related engineering and science disciplines. The Journal provides an international forum for the exchange of innovative ideas, especially between researchers in Asia and the rest of the world.