Resilient Modulus Prediction Models Based on Analysis of LTPP Data for Subgrade Soils and Experimental Verification

2007 ◽  
Vol 133 (9) ◽  
pp. 491-504 ◽  
Author(s):  
Ramesh B. Malla ◽  
Shraddha Joshi
Keyword(s):  
Experimental Verification ◽  
Prediction Models ◽  
Resilient Modulus ◽  
Subgrade Soils

Regression Model for Resilient Modulus of Subgrade Soils in Shanghai

2011 ◽  
Vol 374-377 ◽  
pp. 1796-1799
Author(s):  
Hong Xi Liu ◽  
Liang Zhou
Keyword(s):  
Regression Model ◽  
Prediction Models ◽  
Resilient Modulus ◽  
Soil Samples ◽  
Soil Types ◽  
Model Parameters ◽  
Cohesive Soils ◽  
Subgrade Soils ◽  
The Past ◽  
Effective Design

Subgrade resilient modulus (MR) is very important for effective design of pavements. Several methods to estimate the resilient modulus were suggested in the past years. The main objective of this paper was to validate the correlation of MR with other physical properties of the subgrade soils. Cohesive soils representing major soil types in Shanghai were selected. The resilient modulus tests were conducted with UTM. Additional analysis was then performed to develop correlations between the model parameters and other soil properties. To verify the prediction models independently, laboratory MR tests were conducted on new subgrade soils. It was observed that the predicted MR values compared well with the laboratory measured values for the soil samples.

Development of Prediction Models for Resilient Modulus of Soils

2021 ◽  
Author(s):  
Cara Fragomeni ◽  
Ahmadreza Hedayat ◽  
William Navidi ◽  
Evan Kuhn ◽  
David Thomas ◽  
...  
Keyword(s):  
Prediction Models ◽  
Resilient Modulus

Evaluation of Seasonal Effects on Subgrade Soils

2003 ◽  
Vol 1821 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Andrew G. Heydinger
Keyword(s):  
Seasonal Variations ◽  
Resilient Modulus ◽  
Monitoring Program ◽  
Test Site ◽  
Pavement Design ◽  
Seasonal Effects ◽  
Pavement Performance ◽  
Climatic Effects ◽  
Subgrade Soils ◽  
Frost Penetration

One objective of the FHWA’s Long-Term Pavement Performance (LTPP) program is to determine climatic effects on pavement performance. The LTPP instrumentation program includes seasonal monitoring program (SMP) instrumentation to monitor the seasonal variations of moisture, temperature, and frost penetration. Findings from the SMP instrumentation are to be incorporated into future pavement design procedures. Data from SMP instrumentation at the Ohio Strategic Highway Research Program Test Road (US-23, Delaware County, Ohio) and other reported results were analyzed to develop empirical equations. General expressions for the seasonal variations of average daily air temperature and variations of temperature and moisture in the fine-grained subgrade soil at the test site are presented. An expression for the seasonal variation of resilient modulus was derived. Average monthly weighting factors that can be used for pavement design were computed. Other factors such as frost penetration, depth of water table, and drainage conditions are discussed.

Hybrid Formulation of Resilient Modulus for Cohesive Subgrade Soils Utilizing CPT Test Parameters

2020 ◽  
Vol 32 (9) ◽  
pp. 06020011
Author(s):  
Behnam Ghorbani ◽  
Arul Arulrajah ◽  
Guillermo Narsilio ◽  
Suksun Horpibulsuk ◽  
Myint Win Bo
Keyword(s):  
Resilient Modulus ◽  
Subgrade Soils ◽  
Hybrid Formulation ◽  
Test Parameters ◽  
Cpt Test
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