A Test Method for Creep Characteristics of Loess Based on the One-Dimensional Consolidator
When the traditional one-dimensional consolidator is used to study the creep characteristics of loess, due to the hoop effect of the ring cutter, only the attenuation creep stage and stable creep stage of loess can be studied, but the accelerated creep stage cannot be presented. In order to avoid th...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6656819 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850214368856244224 |
|---|---|
| author | Rongbin Huang Shuangming Wang Shuancheng Gu Zhengjun Mao |
| author_facet | Rongbin Huang Shuangming Wang Shuancheng Gu Zhengjun Mao |
| author_sort | Rongbin Huang |
| collection | DOAJ |
| description | When the traditional one-dimensional consolidator is used to study the creep characteristics of loess, due to the hoop effect of the ring cutter, only the attenuation creep stage and stable creep stage of loess can be studied, but the accelerated creep stage cannot be presented. In order to avoid the influence of drilling on the creep characteristics of loess, the paper improves the consolidation instrument by drilling holes along the diameter direction in the center of the sample to provide artificial space for soil failure. At the same time, the sample size is increased to ensure that the diameter of the sample is greater than five times of the diameter of the borehole, so as to avoid the influence of drilling on the creep characteristics of loess. The creep characteristics of loess are studied by step loading (vertical pressure at all levels is 125 kPa, 175 Pa, 225 kPa, and 275 kPa), and the whole creep process characteristic curves of loess under different stress conditions are obtained. An endoscope was placed in the hole to observe the deformation and failure characteristics of loess in different stages of creep. This method makes up for the defect that the traditional one-dimensional consolidator cannot obtain the whole process characteristics of loess creep. At the same time, it has the advantages of simple operation, less external influence factors, stronger data reliability, and can directly observe the changes of loess creep soil. It has a beneficial role in promoting the experimental research of loess creep characteristics. |
| format | Article |
| id | doaj-art-858d0fdfdd724fb2a63d7a3a20798382 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-858d0fdfdd724fb2a63d7a3a207983822025-08-20T02:08:55ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66568196656819A Test Method for Creep Characteristics of Loess Based on the One-Dimensional ConsolidatorRongbin Huang0Shuangming Wang1Shuancheng Gu2Zhengjun Mao3Post-Doctoral Mobile Station of Geological Resources and Geological Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaPost-Doctoral Mobile Station of Geological Resources and Geological Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaSchool of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaWhen the traditional one-dimensional consolidator is used to study the creep characteristics of loess, due to the hoop effect of the ring cutter, only the attenuation creep stage and stable creep stage of loess can be studied, but the accelerated creep stage cannot be presented. In order to avoid the influence of drilling on the creep characteristics of loess, the paper improves the consolidation instrument by drilling holes along the diameter direction in the center of the sample to provide artificial space for soil failure. At the same time, the sample size is increased to ensure that the diameter of the sample is greater than five times of the diameter of the borehole, so as to avoid the influence of drilling on the creep characteristics of loess. The creep characteristics of loess are studied by step loading (vertical pressure at all levels is 125 kPa, 175 Pa, 225 kPa, and 275 kPa), and the whole creep process characteristic curves of loess under different stress conditions are obtained. An endoscope was placed in the hole to observe the deformation and failure characteristics of loess in different stages of creep. This method makes up for the defect that the traditional one-dimensional consolidator cannot obtain the whole process characteristics of loess creep. At the same time, it has the advantages of simple operation, less external influence factors, stronger data reliability, and can directly observe the changes of loess creep soil. It has a beneficial role in promoting the experimental research of loess creep characteristics.http://dx.doi.org/10.1155/2021/6656819 |
| spellingShingle | Rongbin Huang Shuangming Wang Shuancheng Gu Zhengjun Mao A Test Method for Creep Characteristics of Loess Based on the One-Dimensional Consolidator Advances in Civil Engineering |
| title | A Test Method for Creep Characteristics of Loess Based on the One-Dimensional Consolidator |
| title_full | A Test Method for Creep Characteristics of Loess Based on the One-Dimensional Consolidator |
| title_fullStr | A Test Method for Creep Characteristics of Loess Based on the One-Dimensional Consolidator |
| title_full_unstemmed | A Test Method for Creep Characteristics of Loess Based on the One-Dimensional Consolidator |
| title_short | A Test Method for Creep Characteristics of Loess Based on the One-Dimensional Consolidator |
| title_sort | test method for creep characteristics of loess based on the one dimensional consolidator |
| url | http://dx.doi.org/10.1155/2021/6656819 |
| work_keys_str_mv | AT rongbinhuang atestmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator AT shuangmingwang atestmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator AT shuanchenggu atestmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator AT zhengjunmao atestmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator AT rongbinhuang testmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator AT shuangmingwang testmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator AT shuanchenggu testmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator AT zhengjunmao testmethodforcreepcharacteristicsofloessbasedontheonedimensionalconsolidator |