Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer
To determine the degree of compaction of subgrades filled with fine-grained soil, the compaction test and light dynamic penetrometer (LDP) test were carried out for low liquid-limit clay samples with different water contents in laboratory. Then, a prediction equation of the penetration ratio (PR) de...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/1364868 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832551529755705344 |
|---|---|
| author | Junhui Zhang Yongsheng Yao Jianlong Zheng Xiangqun Huang Tian Lan |
| author_facet | Junhui Zhang Yongsheng Yao Jianlong Zheng Xiangqun Huang Tian Lan |
| author_sort | Junhui Zhang |
| collection | DOAJ |
| description | To determine the degree of compaction of subgrades filled with fine-grained soil, the compaction test and light dynamic penetrometer (LDP) test were carried out for low liquid-limit clay samples with different water contents in laboratory. Then, a prediction equation of the penetration ratio (PR) defined as the depth per drop of the hammer of LDP, degree of compaction (K), and water content (ω) was built. After that, the existing fine-grained soil subgrades on LDP-based field tests were excavated. The on-site PR values, water contents, and degrees of compaction of slopes were obtained. The estimated degrees of compaction using the prediction equation were compared with measured values of the degree of compaction in field. The results show that there is good consistency between them, and an error within 3.5% was obtained. In addition, the water content should be determined firstly while using the prediction equation which is proposed in this study. Therefore, a numerical method of the water content of a subgrade was developed, and the predicted and measured water contents were compared, which shows a relatively high relativity. Then, the degree of compaction of fine-grained soil subgrades can be calculated according to the predicting equation, which involves the penetration ratio (PR) and the numerically calculated water content as input instead of the measured value in the field. |
| format | Article |
| id | doaj-art-466c1432388244ccb017ca32bb3b432d |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-466c1432388244ccb017ca32bb3b432d2025-02-03T06:01:14ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/13648681364868Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic PenetrometerJunhui Zhang0Yongsheng Yao1Jianlong Zheng2Xiangqun Huang3Tian Lan4National Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, ChinaNational Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, ChinaNational Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, ChinaNational Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, ChinaNational Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, ChinaTo determine the degree of compaction of subgrades filled with fine-grained soil, the compaction test and light dynamic penetrometer (LDP) test were carried out for low liquid-limit clay samples with different water contents in laboratory. Then, a prediction equation of the penetration ratio (PR) defined as the depth per drop of the hammer of LDP, degree of compaction (K), and water content (ω) was built. After that, the existing fine-grained soil subgrades on LDP-based field tests were excavated. The on-site PR values, water contents, and degrees of compaction of slopes were obtained. The estimated degrees of compaction using the prediction equation were compared with measured values of the degree of compaction in field. The results show that there is good consistency between them, and an error within 3.5% was obtained. In addition, the water content should be determined firstly while using the prediction equation which is proposed in this study. Therefore, a numerical method of the water content of a subgrade was developed, and the predicted and measured water contents were compared, which shows a relatively high relativity. Then, the degree of compaction of fine-grained soil subgrades can be calculated according to the predicting equation, which involves the penetration ratio (PR) and the numerically calculated water content as input instead of the measured value in the field.http://dx.doi.org/10.1155/2018/1364868 |
| spellingShingle | Junhui Zhang Yongsheng Yao Jianlong Zheng Xiangqun Huang Tian Lan Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer Advances in Civil Engineering |
| title | Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer |
| title_full | Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer |
| title_fullStr | Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer |
| title_full_unstemmed | Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer |
| title_short | Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer |
| title_sort | measurement of degree of compaction of fine grained soil subgrade using light dynamic penetrometer |
| url | http://dx.doi.org/10.1155/2018/1364868 |
| work_keys_str_mv | AT junhuizhang measurementofdegreeofcompactionoffinegrainedsoilsubgradeusinglightdynamicpenetrometer AT yongshengyao measurementofdegreeofcompactionoffinegrainedsoilsubgradeusinglightdynamicpenetrometer AT jianlongzheng measurementofdegreeofcompactionoffinegrainedsoilsubgradeusinglightdynamicpenetrometer AT xiangqunhuang measurementofdegreeofcompactionoffinegrainedsoilsubgradeusinglightdynamicpenetrometer AT tianlan measurementofdegreeofcompactionoffinegrainedsoilsubgradeusinglightdynamicpenetrometer |