Performance test and effect evaluation of guar gum-stabilized loess as a sustainable slope protection material

Jia, Zhuolong; Yan, Changgen; Li, Bo; Bao, Han; Lan, Hengxing; Liang, Zherui; Shi, Yuling; Ren, Jing

doi:10.1016/j.jclepro.2023.137085

Cited by 9 publications

(3 citation statements)

References 44 publications

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“…Additionally, guar gum powder can absorb water in the soil to produce a gel, which reduces the soil water content, thereby solidifying the soil. Therefore, the optimal guar gum content in this test was 1.00%, which is consistent with the findings in [27][28][29].…”

Section: Analysis Of Shear Strength Characteristics Of Guar Gum-solid...supporting

confidence: 90%

Study on the Shear Strength of Loess Solidified by Guar Gum and Basalt Fiber

Xi,

Sun,

et al. 2024

Materials

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Loess is widely distributed in the northwest and other regions, and its unique structural forms such as large pores and strong water sensitivity lead to its collapsibility and collapse, which can easily induce slope instability. Guar gum and basalt fiber are natural green materials. For these reasons, this study investigated the solidification of loess by combining guar gum and basalt fiber and analyzed the impact of the guar gum content, fiber length, and fiber content on the soil shearing strength. Using scanning electron microscopy (SEM), the microstructure of loess was examined, revealing the synergistic solidification mechanism of guar gum and basalt fibers. On this basis, a shear strength model was established through regression analysis with fiber length, guar gum content, and fiber content. The results indicate that adding guar gum and basalt fiber increases soil cohesion, as do fiber length, guar gum content, and fiber content. When the fiber length was 12 mm, the fiber content was 1.00%, and the guar gum content was equal to 0.50%, 0.75%, or 1.00%, the peak strength of the solidified loess increased by 82.80%, 85.90%, and 90.40%, respectively. According to the shear strength model, the predicted and test data of the shear strength of solidified loess are evenly distributed on both sides of parallel lines, indicating a good fit. These findings are theoretically significant and provide practical guidance for loess solidification engineering.

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Section: Analysis Of Shear Strength Characteristics Of Guar Gum-solid...supporting

confidence: 90%

Study on the Shear Strength of Loess Solidified by Guar Gum and Basalt Fiber

Xi,

Sun,

et al. 2024

Materials

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“…Cheng et al 11 used MICP technique to reduce the resistance of loess to rainfall erosion. Jia et al 12 used guar gum to stabilize loess slopes and to control rainwater erosion. Sujatha et al 13 utilized xanthan gum as a solidifying agent to improve the geotechnical properties of the soil, resulting in a significant enhancement of impermeability.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of influence of amide polymer on loess for subgrade

Yue,

Zhang,

Zhang

et al. 2024

Sci Rep

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The effects of moisture and drying shrinkage can lead to uneven settlement, cracking, and other diseases in loess subgrade. The objective of this study was to investigate the effects of amide polymer (AP) on the permeability, mechanical properties and crack resistance of loess by orthogonal experiments. The basic properties of AP and the permeability, mechanical properties, and dry–wet variation properties of polymer-modified loess were tested, and a scale model verification and simulation analysis were conducted. In this paper, water migration in subgrade is regulated by improving the water sensitivity of loess. By reducing the variation range of subgrade water content, the stress accumulation in subgrade caused by water is weakened. The results show that the curing time and mechanical properties of AP are directly affected by the oxidant and reducing agent, and the mechanical properties of AP are compatible with the characteristics of loess. AP filled the grain gap and reduced the permeability of loess by 34.05–280.83%. The ductility of polymer-modified loess is significantly increased, and the strain of peak strength is increased by 17.21–126.36%. AP can regulate moisture change, reduce the surface tension between particles, and reduce stress concentration. The strength loss rate was reduced by 19.98–51.21% by enhancing the cracking resistance and weakening the strength loss caused by dry and wet cycling. The increase of upper layer moisture content in the scale model of polymer-modified loess subgrade is reduced by 31.38–36.11%.

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“…A EG desempenha um papel fundamental no desenvolvimento sustentável, uma vez que auxilia na avaliação da contaminação dos terrenos e recuperação de áreas degradadas, na avaliação e gestão dos riscos, no tratamento/valorização de resíduos resultante das extrações mineiras ou da construção civil e na luta contra a escassez de recursos geológicos (Deveci et al, 2022). Desempenha ainda um papel essencial na investigação geotécnica para projetos de engenharia civil ou mineira, na modelação da estabilidade de taludes, na caracterização geomecânica de maciços terrosos/rochosos e na escavação de maciços rochosos (Jia et al, 2023).…”

Section: Introductionunclassified

Engenharia geológica e desenvolvimento sustentável

Panda,

Luciano,

Capingana

et al. 2024

Cad. Pedagógico

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A Engenharia Geológica encerra em si um conjunto de conhecimentos e aplicações que a tornam essencial na prossecução dos objetivos do desenvolvimento sustentável (ODS) traçados pela Organização das Nações Unidas (ONU) em 2015. Este estudo propõe-se indicar alguns desses potenciais intervenções, fazendo uma atualização dos contributos a elas associados, bem como a apresentação de alguns estudos recentes, internacionais e nacionais, que os ilustram, a fim de destacar o papel que a Engenharia Geológica tem e deve desempenhar no futuro imediato e a médio prazo para um planeta mais sustentável. Trata-se de um estudo de natureza exploratória e descritiva envolvendo revisão bibliográfica por meio da literatura científica, periódicos, livros, artigos, dissertações e teses que relataram dados relacionados ao tema da pesquisa. Apresentam-se algumas intervenções no âmbito dos ODS das ONU, tais como identificar e recomendar sobre potenciais fontes de energia e matérias-primas, a contribuição para a extração e proteção responsável de georrecursos, passando pelo apoio às fases de projeto e a construção de infraestruturas/estruturas e na seleção das soluções de projeto que contribuam para uma engenharia mais verde, nomeadamente através do recurso de soluções da bioengenharia ou da reutilização/reciclagem de resíduos de construção. Foi possível concluir com este estudo, que a Engenharia Geológica desempenha um papel crucial na concretização dos Objetivos de Desenvolvimento Sustentável (ODS) da ONU. Contribuindo, com a gestão de riscos geológicos e soluções sustentáveis. A adaptação às alterações climáticas e preservação ambiental destaca a importância da colaboração interdisciplinar e o conhecimento geológico para enfrentar os desafios ambientais e do desenvolvimento.

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Performance test and effect evaluation of guar gum-stabilized loess as a sustainable slope protection material

Cited by 9 publications

References 44 publications

Study on the Shear Strength of Loess Solidified by Guar Gum and Basalt Fiber

Study on the Shear Strength of Loess Solidified by Guar Gum and Basalt Fiber

Experimental investigation of influence of amide polymer on loess for subgrade

Engenharia geológica e desenvolvimento sustentável

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