Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of Port
Immersion timeliness of sand-mudstone mixture is an important basis for the stabilityanalysis of slopes in mountainous portsduring the water level fluctuation process. This paper setsup 20 samples in 5 working conditions by a strain-controlled direct shear apparatus to conductlaboratory tests with...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Pearl River
2020-01-01
|
| Series: | Renmin Zhujiang |
| Subjects: | |
| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.07.016 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841535654136119296 |
|---|---|
| author | WU Xiao |
| author_facet | WU Xiao |
| author_sort | WU Xiao |
| collection | DOAJ |
| description | Immersion timeliness of sand-mudstone mixture is an important basis for the stabilityanalysis of slopes in mountainous portsduring the water level fluctuation process. This paper setsup 20 samples in 5 working conditions by a strain-controlled direct shear apparatus to conductlaboratory tests with different immersion durations,analyzes the shear strength distribution ofsand-mudstone mixture to obtain the change law of its shear strength index,studies the immersiontimeliness and apply it to simulate the safety of the port slope at different water levelconditions,and establishes the calculation model of the rise and fall of port water level toanalyze the slope safety behavior under the rise and fall state of water level. The test resultsshow that the shear strength of sand-mudstone mixture decreases with the increase of the immersiontime, the cohesion first increases and then stabilizes with the increase of the immersion time,and the internal friction angle decreases first and then stabilizes with the increase of theimmersion time. The numerical calculation shows that the safety factor of the slope graduallydecreases from 0.997 to 0.952 as the water level rises, and gradually increases from 0.924 to0.994 as the water level decreases. At the same water level and decline stage, the maximumreduction rate of safety factor is 2.94%. Therefore, without considering the influence of seepagefield, the safety behavior of the slope of waterfront port under high water level is inferior tothat under low water level, and the slope safety factor decreases with largest ratio in case oflong-term operation at the high water level. |
| format | Article |
| id | doaj-art-c72863299e31464891a03b2c941e7304 |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-c72863299e31464891a03b2c941e73042025-01-15T02:30:56ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352020-01-014147651262Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of PortWU XiaoImmersion timeliness of sand-mudstone mixture is an important basis for the stabilityanalysis of slopes in mountainous portsduring the water level fluctuation process. This paper setsup 20 samples in 5 working conditions by a strain-controlled direct shear apparatus to conductlaboratory tests with different immersion durations,analyzes the shear strength distribution ofsand-mudstone mixture to obtain the change law of its shear strength index,studies the immersiontimeliness and apply it to simulate the safety of the port slope at different water levelconditions,and establishes the calculation model of the rise and fall of port water level toanalyze the slope safety behavior under the rise and fall state of water level. The test resultsshow that the shear strength of sand-mudstone mixture decreases with the increase of the immersiontime, the cohesion first increases and then stabilizes with the increase of the immersion time,and the internal friction angle decreases first and then stabilizes with the increase of theimmersion time. The numerical calculation shows that the safety factor of the slope graduallydecreases from 0.997 to 0.952 as the water level rises, and gradually increases from 0.924 to0.994 as the water level decreases. At the same water level and decline stage, the maximumreduction rate of safety factor is 2.94%. Therefore, without considering the influence of seepagefield, the safety behavior of the slope of waterfront port under high water level is inferior tothat under low water level, and the slope safety factor decreases with largest ratio in case oflong-term operation at the high water level.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.07.016immersion timeslope stability analysiswater level changesafety factor |
| spellingShingle | WU Xiao Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of Port Renmin Zhujiang immersion time slope stability analysis water level change safety factor |
| title | Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of Port |
| title_full | Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of Port |
| title_fullStr | Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of Port |
| title_full_unstemmed | Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of Port |
| title_short | Analysis of Immersion Timeliness for Soiland Its Application in Slope Stability of Port |
| title_sort | analysis of immersion timeliness for soiland its application in slope stability of port |
| topic | immersion time slope stability analysis water level change safety factor |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.07.016 |
| work_keys_str_mv | AT wuxiao analysisofimmersiontimelinessforsoilanditsapplicationinslopestabilityofport |