Download or read book Ancient Underground Opening and Preservation written by Zhifa Yang and published by CRC Press. This book was released on 2015-10-01 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ancient Underground Opening and Preservation contains 59 papers presented at the International Symposium on Scientific Problems and Long-term Preservation of Largescale Ancient Underground Engineering (Longyou, China, 23-26 October 2015). The contributions focus on scientific and technical issues related to long-term preservation of large-scale anc