Waterproof of rock joint with lead strip for splitting tuff sheet in ancient China quarrying caverns
作者单位：Key Laboratory of Engineering GeomechanicsInstitute of Geology and GeophysicsChinese Academy of Sciences Department of Civil EngineeringUniversity of Hong Kong
会议名称：《中国科学院地质与地球物理研究所2012年度（第12届）学术年会》
会议日期：2013年
学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学]
基 金：supported by the National Natural Science Foundation of China(Grant Nos.40902088,40672190) the China Postdoctoral Science Foundation(Grant No.20110490580)
关 键 词：rock cavern lead strips sealant joints waterproof tuff splitting quarry
摘 要：This paper presents the relics of rock joints caulked with lead strips,unearthed by the authors in 2007 and *** relics were in ancient quarry caverns in Sliepan Island,Zhejiang Province,eastern *** quarry activities were mainly carried out for production of regular tuff stone plates about 800 years *** of the lead strips was sealed into a rock joint by punching manually and *** present,the lead strips still contact tightly with the rock joints and new mineral cerussite is found to have formed at the contact surfaces between the lead strip and its caulked rock *** use of lead strips caulking rock joints in quarry caverns is found for prevention of water from seeping out of the country rocks into quarry cavern bases, where all of the in-situ intact tuff rock was manually and near-horizontally split into thin rock sheets one by one for production of regular tuff ***,it is found that the tensile splitting of tuff sheets at the cavern base required the intact rocks at the cavern base had to be *** this horizontal base splitting for tuff sheets from the top to the bottom,a dome-shape interior space was formed for each rock cavern with the near horizontal imprints of thin sheet layers permanently on the sidewalls.