Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analysis of Calculated Subgrade Settlement in the Loess Area
This paper established the analysis of the results of calculated subgrade settlement in the loess area, due to traffic load and partial saturation of the loess. Loess has high strength and low compressibility in a dry state, which is known as structure of loess. However, it is easy to absorb water due to the high porosity, which induced loess lose structure and strength reduction. During the construction of the subgrade, due to inadequate protection during the intense rainfall, partial saturation of the loess layers occurred, which will destroy the initial structure of the loess and cause significant settlement after construction. Besides, traffic moving loading produces dynamic stress in subgrade which may lead to additional plasticity and then produce an excessive settlement. To assess the development of settlements under traffic load and partial saturation, the settlement calculations were performed based on the collapse potential and increase of moisture content. The calculated subgrade settlement was compared with the observed settlement for validation. Further, some measures were proposed in order to ensure the safe operation of the subgrade based on the settlements.
Analysis of Calculated Subgrade Settlement in the Loess Area
This paper established the analysis of the results of calculated subgrade settlement in the loess area, due to traffic load and partial saturation of the loess. Loess has high strength and low compressibility in a dry state, which is known as structure of loess. However, it is easy to absorb water due to the high porosity, which induced loess lose structure and strength reduction. During the construction of the subgrade, due to inadequate protection during the intense rainfall, partial saturation of the loess layers occurred, which will destroy the initial structure of the loess and cause significant settlement after construction. Besides, traffic moving loading produces dynamic stress in subgrade which may lead to additional plasticity and then produce an excessive settlement. To assess the development of settlements under traffic load and partial saturation, the settlement calculations were performed based on the collapse potential and increase of moisture content. The calculated subgrade settlement was compared with the observed settlement for validation. Further, some measures were proposed in order to ensure the safe operation of the subgrade based on the settlements.
Analysis of Calculated Subgrade Settlement in the Loess Area
Sustain. Civil Infrastruct.
Fatahi, Behzad (Herausgeber:in) / Chen, Shen-En (Herausgeber:in) / Hu, Jun (Herausgeber:in) / Jianwei, Li (Autor:in) / Shubo, Guo (Autor:in) / Defu, Huang (Autor:in) / Jue, Hou (Autor:in) / Jun, Yao (Autor:in) / Zhenyu, Li (Autor:in)
Civil Infrastructures Confronting Severe Weathers and Climate Changes Conference ; 2021 ; NanChang, China
Resilient Design and Construction of Geostructures Against Natural Hazards ; Kapitel: 10 ; 120-129
11.07.2021
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Analysis of Calculated Subgrade Settlement in the Loess Area
| TIBKAT | 2021
Comparative Study on Settlement Prediction of Railway Subgrade on Collapsible Loess Area
| British Library Conference Proceedings | 2012
| Europäisches Patentamt | 2024
Dynamic Response Analysis of Compaction Loess Subgrade
| British Library Conference Proceedings | 2013