Estimation of Safety of Soil-Steel Structures Based on the Monitoring Results

During backfilling of buried structures the deformations are significant and can be controlled using geodetic techniques. Usually the crown point deflection is observed, which is subject to significant changes during the backfilling process. In the initial phase of the construction, due to the lateral pressure of the soil, the shell’s crown point is peaking up and then is reduced by the cover. In this paper the changes of the top radius as a function of vertical displacement of the shell crown were analysed. A characteristic graph is thus created to estimate the safety of the structure both during construction and in the service. The paper presents an algorithm of structure safety assessment based on shell deformation. Construction phase of the structure is analysed. The internal forces in the buried structures are usually several times greater in the construction stage then in the service stage. Results of analyses presented in the paper are therefore significant also as a basis for calculation and behaviour of the soil during the live loads.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 9p

Subject/Index Terms

Filing Info

  • Accession Number: 01763606
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-01190
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 11:07AM