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Load-displacement Relationship Modeling with Power Function on Cylindrical Underreamed Ground Anchor

  • Gang Guo*
  • , Zhong Liu
  • , Aiping Tang
  • , Xiaochen Hu
  • *Corresponding author for this work
  • China Metallurgical Group Corporation
  • School of Civil Engineering, Harbin Institute of Technology

Research output: Contribution to journalConference articlepeer-review

Abstract

An underreamed ground anchor technique is developed for high anchorage force demand based on shaft anchors worldwide. Engineers and scholars invented various types of underreamed ground anchors, such as those based on jet grouting, mechanical reaming, and blasting. To guarantee the quality of anchorage section and reduce cost, a new type of cylindrical underreamed ground anchor with geotextile bag was developed and applied throughout China. Through 33 Q-s curves in the field tests of underreamed anchor with geotextile bag, a power function model was established for describing the relationship between the load and displacement of a cylindrical underreamed anchor. Finally, the high precision of the function model was verified.

Original languageEnglish
Article number022124
JournalIOP Conference Series: Earth and Environmental Science
Volume330
Issue number2
DOIs
StatePublished - 11 Nov 2019
Externally publishedYes
Event2019 International Conference on Advances in Civil Engineering, Energy Resources and Environment Engineering, ACCESE 2019 - Changchun, Jilin, China
Duration: 28 Jun 201930 Jun 2019

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