摘要
The 6th International Symposium on Permofrost Engineering was successfully held in China inSeptember 2004. About 150 scientists and engineers from 7 countries attended the symposium in Lanzhouon 5~7 September, and about 35 people from 6 countries participated in the field trip along the Qinghai-Tibet Highway/Railway on 8~13 September and the seminar in Lhasa on 14 September 2004. Duringthe Symposium, the latest progress on permafrost engineering and the surveys, design and constructionof the Qinghai-Tibet Railway were exchanged and inspected. Fifty-eight technical papers in English fromthe Symposium were published in the first volume of the Proceedings of the Symposium, as a supplementof the Journal of Glaciology and Geocryology, before the symposium. About 6 papers from the sympo-sium are published in the socond volume in the volume 27(1) of the Journal of the Glaciology and Geo-cryology, after the symposium.