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Study on the Mechanical Effect and Constitutive Model of Montmorillonite under the Action of Acid Rain: A Case Study on Montmorillonite-Quartz Remolded Soil
Li, Li1,2; Liu, Jian3,4; Xu, Xingqian4,5
Corresponding AuthorLiu, Jian(liujian@hebeu.edu.cn)
2021-02-10
Source PublicationADVANCES IN CIVIL ENGINEERING
ISSN1687-8086
Volume2021Pages:10
AbstractClay minerals are the common insoluble cementing substances in soil. To study the mechanical effect of montmorillonite under the action of acid rain, the variation law and mechanism of the cohesive force and internal friction angle were discussed by immersing montmorillonite-quartz remolded soil in HNO3 solution with pH = 3. It was found that, under acidic conditions, the cohesive force increased after the first drop and subsequently decreased again, while the internal friction angle remained basically unchanged. Considering the vertical pressure of soil landslide, the change in the shear strength of cohesive soil under acid rain is consistent with the change in the cohesive force. The X-ray diffraction (XRD) results showed that the acid could erode the cement-montmorillonite, and no new substance was generated, which caused a decrease in cohesion. In addition, based on the microcementation nature of montmorillonite and the change mechanism of cohesion under acid rain, the cohesive force model of saturated montmorillonite-quartz remolded soil under acid rain was established. The change trend of calculated cohesion values was consistent with the one of measured values, and the error was small.
DOI10.1155/2021/6644411
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41867040] ; Natural Science Foundation of Hebei Province, China[E2020402075] ; Innovation Fund Project of Hebei University of Engineering[BSHJJ1904]
WOS Research AreaConstruction & Building Technology ; Engineering
WOS SubjectConstruction & Building Technology ; Engineering, Civil
WOS IDWOS:000621825000011
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Hebei Province, China ; Innovation Fund Project of Hebei University of Engineering
PublisherHINDAWI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/56019
Collection山地灾害与地表过程重点实验室
Corresponding AuthorLiu, Jian
Affiliation1.Cent South Univ, Sch Geosci & Infophys, Changsha 410012, Peoples R China
2.Shanxi Earthquake Agcy, Taiyuan 030000, Peoples R China
3.Hebei Univ Engn, Sch Earth Sci & Engn, Handan 056038, Peoples R China
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
5.Yunnan Agr Univ, Coll Water Conservancy, Kunming 650000, Yunnan, Peoples R China
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Li, Li,Liu, Jian,Xu, Xingqian. Study on the Mechanical Effect and Constitutive Model of Montmorillonite under the Action of Acid Rain: A Case Study on Montmorillonite-Quartz Remolded Soil[J]. ADVANCES IN CIVIL ENGINEERING,2021,2021:10.
APA Li, Li,Liu, Jian,&Xu, Xingqian.(2021).Study on the Mechanical Effect and Constitutive Model of Montmorillonite under the Action of Acid Rain: A Case Study on Montmorillonite-Quartz Remolded Soil.ADVANCES IN CIVIL ENGINEERING,2021,10.
MLA Li, Li,et al."Study on the Mechanical Effect and Constitutive Model of Montmorillonite under the Action of Acid Rain: A Case Study on Montmorillonite-Quartz Remolded Soil".ADVANCES IN CIVIL ENGINEERING 2021(2021):10.
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