Variability Control of Subgrade Compaction Quality Using a New Intelligent Compaction Measurement Value

Intelligent compaction (IC) is an innovative and modified technology used for quality control in subgrade digital construction. However, current intelligent compaction measurement values (ICMV) cannot provide accurate measurement of the filling layer when the strength of underlying layer is relatively high. Experimental field tests that conducted in cut to fill subgrade were performed to collect and analyze the variability of ICMV called vibration modulus (Evib). Furthermore, a new ICMV called modulus of vibration compaction (Evc) that could remove the interference of underlying layer and reveal the actual compaction state of filling layer is presented based on theoretical analysis and numerical simulation method. It was also extracted to study the variability of the filling layer’s compaction state. The results of above researches indicate the influence of underlying layer’s stiffness on overall compaction quality is remarkable. It was found that it is more likely to achieve the variability control of compaction state of filling layer by new ICMV called Evc. The measured data, improved approaches, and associated conclusions that are presented provide valuable information for researchers and employees that are considering the use of IC technology.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Pagination: 16p

Subject/Index Terms

Filing Info

  • Accession Number: 01763442
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-03905
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 10:59AM