Double corrosion protection of long soil nails at Deep Bay Link – a case history

Nick Koor, A Cheung

Research output: Contribution to conferencePaperpeer-review

150 Downloads (Pure)


Preliminary soil nails up to 30 m in length were installed at the Deep Bay Link project to test the effectiveness of grouting long nails. The nails incorporated a double corrosion protection system consisting of a corrugated HDPE sheath. Each preliminary nail was successfully tested to two times the design load and several were exhumed to inspect the grouted nail section. Grout was seen to have completely filled the internal and external void around the corrugated sheath with excellent contact between the grout and the surrounding saprolite. Permanent soil nails with double corrosion protection up to 28 m long are now being successfully installed at the site.
Original languageEnglish
Pages134 - 141
Publication statusPublished - 2005
EventThe HKIE Geotechnical Division 25th Annual Seminar: Safe and Green Slopes - Hong Kong, Hong Kong, China
Duration: 5 May 20055 May 2005


SeminarThe HKIE Geotechnical Division 25th Annual Seminar
CityHong Kong


  • Soil Nail
  • Corosion
  • saprolite


Dive into the research topics of 'Double corrosion protection of long soil nails at Deep Bay Link – a case history'. Together they form a unique fingerprint.

Cite this