Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case Study
The design of high fill embankments (HFEs) on the loess plateau requires proper foundation treatment methods and reasonable prediction of postconstruction settlement (PCS). In situ tests were carried out on a test section of the collapsible loess foundation of a high fill airport to assess the reinf...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8864690 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832565626467516416 |
|---|---|
| author | Caihui Zhu Xiaosong Zhou Songhe Wang |
| author_facet | Caihui Zhu Xiaosong Zhou Songhe Wang |
| author_sort | Caihui Zhu |
| collection | DOAJ |
| description | The design of high fill embankments (HFEs) on the loess plateau requires proper foundation treatment methods and reasonable prediction of postconstruction settlement (PCS). In situ tests were carried out on a test section of the collapsible loess foundation of a high fill airport to assess the reinforcement effects of common treatment methods. Based on in situ monitored data, the spatial-temporal variations of the PCS of the HFE were investigated, with a simple empirical formula proposed for PCS prediction. The PCS increases linearly with the fill thickness, and the PCS rate varies exponentially with the fill rate. Two engineering recommendations were made to reduce differential PCS and water damage for the test site. The first is to combine the reinforcement methods to reduce PCS of the HFE, i.e., dynamic compaction for loess foundation with lower water content and gravel piles with stabilizers for that with higher water content. The second is to employ the dynamic compaction (DC), percussive compaction (PC), and vibration compaction (VC) to strengthen the fill to reach an average compaction degree above 0.93 and a water content close to the optimal. |
| format | Article |
| id | doaj-art-0bf890ad7d484460b621fb8129544804 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-0bf890ad7d484460b621fb81295448042025-02-03T01:07:08ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88646908864690Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case StudyCaihui Zhu0Xiaosong Zhou1Songhe Wang2State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an, ChinaChina Jikan Research Institute of Engineering Investigastions and Design, Co., Ltd., Xi’an, ChinaState Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an, ChinaThe design of high fill embankments (HFEs) on the loess plateau requires proper foundation treatment methods and reasonable prediction of postconstruction settlement (PCS). In situ tests were carried out on a test section of the collapsible loess foundation of a high fill airport to assess the reinforcement effects of common treatment methods. Based on in situ monitored data, the spatial-temporal variations of the PCS of the HFE were investigated, with a simple empirical formula proposed for PCS prediction. The PCS increases linearly with the fill thickness, and the PCS rate varies exponentially with the fill rate. Two engineering recommendations were made to reduce differential PCS and water damage for the test site. The first is to combine the reinforcement methods to reduce PCS of the HFE, i.e., dynamic compaction for loess foundation with lower water content and gravel piles with stabilizers for that with higher water content. The second is to employ the dynamic compaction (DC), percussive compaction (PC), and vibration compaction (VC) to strengthen the fill to reach an average compaction degree above 0.93 and a water content close to the optimal.http://dx.doi.org/10.1155/2020/8864690 |
| spellingShingle | Caihui Zhu Xiaosong Zhou Songhe Wang Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case Study Shock and Vibration |
| title | Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case Study |
| title_full | Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case Study |
| title_fullStr | Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case Study |
| title_full_unstemmed | Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case Study |
| title_short | Foundation Treatment Assessment and Postconstruction Settlement Prediction of a Loess High Fill Embankment: A Case Study |
| title_sort | foundation treatment assessment and postconstruction settlement prediction of a loess high fill embankment a case study |
| url | http://dx.doi.org/10.1155/2020/8864690 |
| work_keys_str_mv | AT caihuizhu foundationtreatmentassessmentandpostconstructionsettlementpredictionofaloesshighfillembankmentacasestudy AT xiaosongzhou foundationtreatmentassessmentandpostconstructionsettlementpredictionofaloesshighfillembankmentacasestudy AT songhewang foundationtreatmentassessmentandpostconstructionsettlementpredictionofaloesshighfillembankmentacasestudy |