Research on function model of lime-improved high liquid limit soil strength characteristics
In view of the large number of high liquid limit soil abandonment problems along the roadbed of the Liyu Expressway in Guangxi, quick lime was used to improve the high-liquid limit soil. the high-liquid limit soil samples with different initial water content and different lime content from the spoil...
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| Format: | Article |
| Language: | zho |
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Editorial Office of The Chinese Journal of Geological Hazard and Control
2021-06-01
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| Series: | Zhongguo dizhi zaihai yu fangzhi xuebao |
| Subjects: | |
| Online Access: | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.03-14 |
| _version_ | 1797862460002140160 |
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| author | Hongkun HU Zhushan SHAO |
| author_facet | Hongkun HU Zhushan SHAO |
| author_sort | Hongkun HU |
| collection | DOAJ |
| description | In view of the large number of high liquid limit soil abandonment problems along the roadbed of the Liyu Expressway in Guangxi, quick lime was used to improve the high-liquid limit soil. the high-liquid limit soil samples with different initial water content and different lime content from the spoil field were used to conduct lateral compression test and fast shear test, and the basic elementary mathematical function model was used to fit different saturation states and different initial water content. The effect of lower lime content on the compression characteristics and shear strength of the specimen is tested. The results show that: (1) The compression coefficient of high liquid limit soil decreases exponentially with the increase of lime content; (2) the cohesion and internal friction angle of the specimens in different saturated states change with the increase of lime content in the form of quadratic function; (3) High liquid limit soil has water sensitivity. The moisture content corresponding to the shear strength is 3%～6% higher than the moisture content corresponding to the maximum dry density of the compaction test; (4) When the initial moisture content is lower than 26.73%, it is recommended that the lime content is not less than 6%, otherwise the lime content of the modified high liquid limit soil is not less than 8%, which can be achieved under the premise of meeting economics and better improvement effect. |
| first_indexed | 2024-04-09T22:19:43Z |
| format | Article |
| id | doaj.art-9ca774151af24f89adcef58ef4d4ff7c |
| institution | Directory Open Access Journal |
| issn | 1003-8035 |
| language | zho |
| last_indexed | 2024-04-09T22:19:43Z |
| publishDate | 2021-06-01 |
| publisher | Editorial Office of The Chinese Journal of Geological Hazard and Control |
| record_format | Article |
| series | Zhongguo dizhi zaihai yu fangzhi xuebao |
| spelling | doaj.art-9ca774151af24f89adcef58ef4d4ff7c2023-03-22T16:10:26ZzhoEditorial Office of The Chinese Journal of Geological Hazard and ControlZhongguo dizhi zaihai yu fangzhi xuebao1003-80352021-06-0132310911710.16031/j.cnki.issn.1003-8035.2021.03-14202006006Research on function model of lime-improved high liquid limit soil strength characteristicsHongkun HU0Zhushan SHAO1School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaSchool of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaIn view of the large number of high liquid limit soil abandonment problems along the roadbed of the Liyu Expressway in Guangxi, quick lime was used to improve the high-liquid limit soil. the high-liquid limit soil samples with different initial water content and different lime content from the spoil field were used to conduct lateral compression test and fast shear test, and the basic elementary mathematical function model was used to fit different saturation states and different initial water content. The effect of lower lime content on the compression characteristics and shear strength of the specimen is tested. The results show that: (1) The compression coefficient of high liquid limit soil decreases exponentially with the increase of lime content; (2) the cohesion and internal friction angle of the specimens in different saturated states change with the increase of lime content in the form of quadratic function; (3) High liquid limit soil has water sensitivity. The moisture content corresponding to the shear strength is 3%～6% higher than the moisture content corresponding to the maximum dry density of the compaction test; (4) When the initial moisture content is lower than 26.73%, it is recommended that the lime content is not less than 6%, otherwise the lime content of the modified high liquid limit soil is not less than 8%, which can be achieved under the premise of meeting economics and better improvement effect.https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.03-14high liquid limit soillime contentcompression characteristicsshear strengthmathematical model |
| spellingShingle | Hongkun HU Zhushan SHAO Research on function model of lime-improved high liquid limit soil strength characteristics Zhongguo dizhi zaihai yu fangzhi xuebao high liquid limit soil lime content compression characteristics shear strength mathematical model |
| title | Research on function model of lime-improved high liquid limit soil strength characteristics |
| title_full | Research on function model of lime-improved high liquid limit soil strength characteristics |
| title_fullStr | Research on function model of lime-improved high liquid limit soil strength characteristics |
| title_full_unstemmed | Research on function model of lime-improved high liquid limit soil strength characteristics |
| title_short | Research on function model of lime-improved high liquid limit soil strength characteristics |
| title_sort | research on function model of lime improved high liquid limit soil strength characteristics |
| topic | high liquid limit soil lime content compression characteristics shear strength mathematical model |
| url | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.03-14 |
| work_keys_str_mv | AT hongkunhu researchonfunctionmodeloflimeimprovedhighliquidlimitsoilstrengthcharacteristics AT zhushanshao researchonfunctionmodeloflimeimprovedhighliquidlimitsoilstrengthcharacteristics |