All Issue

2018 Vol.28, Issue 5 Preview Page
October 2018. pp. 493-511
Abstract

This paper deals with visual confirmation device for tensile force verification in order to cope with tensile force loss of ground anchor. Ground anchors are constructed to ensure the stability of social infrastructure facilities, but continuous loss of tensile force is seriously concerned about safety of the facilities. This requires the maintenance of the anchors, but the current measuring of residual tensile force is done by sampling, taking into account economic aspects, which limits precision. In this paper, conducted a conceptual design, tensile experiment, and field test for the purpose of developing an anchor tensile force visual device to check the tensile force of the anchors.

본 논문에서는 그라운드 앵커의 긴장력 손실에 대응하고자 긴장력 상시확인을 위한 앵커 긴장력 상시 육안확인장치에 대한 내용을 다루었다. 그라운드 앵커는 사회적 인프라 시설의 안정성을 확보하기 위해 시공되었지만 지속적인 긴장력 손실로 인해 시설물에 대한 안전이 심각하게 우려되고 있는 실정이다. 이에 앵커의 유지관리가 요구되지만 현재 잔존긴장력의 계측은 경제적인 측면을 고려하여 표본조사로 이루어지고 있어 정밀도에 대한 한계점을 지니고 있다. 따라서 본 논문에서는 앵커의 긴장력을 육안으로 확인할 수 있는 앵커 긴장력 상시 육안확인장치의 개발을 목적으로 개념설계, 실내 인장실험을 통한 규격화를 수행하였으며, 현장시험을 통해 성능을 확인하였다.

References
  1. B.J., Lee and J.K., Lee, 2015, Evaluation of Loss of Prestress Force of Tensile Anchor by Long Term Measurement, Journal of the Korean Geo-Environmental Society, Vol. 16, No. 10, pp. 15-2210.14481/jkges.2015.16.10.15
  2. British Standards Institution, 1989, BS 8081 : British Standard Code of Practice for Ground Anchorages, London.
  3. D.H., Kim, 2017, Tensible force loss of ground anchor based on field soil condition, Master`s Theis Inje University. FHWA-IF-99-015, 1999, Ground Anchors and Anchored Systems, 185p.
  4. FIP, 1996, Design and Construction of Prestressed Ground Anchorages, 29p.
  5. German Industrial Standard, Disc Springs Dimensions and Quality Specifications, DIN 2093.
  6. Korea Expressway Corporation, 2016, Investigation of application condition and making the performance improvement technique of permanent ground anchor, 114p.
  7. Korea Infrastructure Safety & Technology Corporation, 2009, Ground Anchor Maintenance Management Manual, Logo & CIR Introduction, Korea, 238p.
  8. Ministry of Land, 2009, Ground Anchor Design Construction and Maintenance Manual, Ministry of Land, 162p.
  9. PTI, 1996, Recommendations for Prestressed Rock and Soil Anchors, 41p.
  10. Roads and Traffic Authority, 1997, Permanent Rock Anchors, QA Specification DCM B114. New South Wales, Australia.
  11. The Japanese Geotechnical Society, 2000, Standard for Design and Construction of Ground Anchors, JGS4101-2000.
Information
  • Publisher :Korean Society for Rock Mechanics and Rock Engineering
  • Publisher(Ko) :한국암반공학회
  • Journal Title :Tunnel and Underground Space
  • Journal Title(Ko) :터널과 지하공간
  • Volume : 28
  • No :5
  • Pages :493-511
  • Received Date :2018. 10. 12
  • Accepted Date : 2018. 10. 23