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Title: Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer

Abstract

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, whichmore » involves the penetration ratio (PR) and the numerically calculated water content as input instead of the measured value in the field.« less

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1];  [2];  [1]
  1. National Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
  2. National Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China, Hunan Communications Research Institute, Changsha 410007, China
Publication Date:
Sponsoring Org.:
USDOE Office of Electricity Delivery and Energy Reliability (OE), Power Systems Engineering Research and Development (R&D) (OE-10)
OSTI Identifier:
1460050
Grant/Contract Number:  
2017YFC0805307
Resource Type:
Journal Article: Published Article
Journal Name:
Advances in Civil Engineering
Additional Journal Information:
Journal Name: Advances in Civil Engineering Journal Volume: 2018; Journal ID: ISSN 1687-8086
Publisher:
Hindawi Publishing Corporation
Country of Publication:
Country unknown/Code not available
Language:
English

Citation Formats

Zhang, Junhui, Yao, Yongsheng, Zheng, Jianlong, Huang, Xiangqun, and Lan, Tian. Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer. Country unknown/Code not available: N. p., 2018. Web. doi:10.1155/2018/1364868.
Zhang, Junhui, Yao, Yongsheng, Zheng, Jianlong, Huang, Xiangqun, & Lan, Tian. Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer. Country unknown/Code not available. doi:10.1155/2018/1364868.
Zhang, Junhui, Yao, Yongsheng, Zheng, Jianlong, Huang, Xiangqun, and Lan, Tian. Thu . "Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer". Country unknown/Code not available. doi:10.1155/2018/1364868.
@article{osti_1460050,
title = {Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer},
author = {Zhang, Junhui and Yao, Yongsheng and Zheng, Jianlong and Huang, Xiangqun and Lan, Tian},
abstractNote = {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.},
doi = {10.1155/2018/1364868},
journal = {Advances in Civil Engineering},
number = ,
volume = 2018,
place = {Country unknown/Code not available},
year = {Thu Jul 12 00:00:00 EDT 2018},
month = {Thu Jul 12 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1155/2018/1364868

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