Abstract：The anchor technology in China's standards has some room for improvement compared with the foreign ones. Based on the latest standards of European Union, USA and Japan, some suggestions are put forward: (1) An anchor structure division method is proposed, that is, the internal structure is divided into tendon bond length, tendon free length and tension length. (2) The base tests are adjusted and subdivided into investigation test and suitability test. (3) The apparent free length can be used as the deformation evaluation index for anchor tests instead of elastic deformation. (4) The technical requirements for setting the packer between fixed length and free length are investigated. (5) Only the load control tension method can be used for the load dispersion anchor. (6) The lift-off check for resident load on the anchor tendon should be studied and added. (7) The lock load should be raised to more than 0.9 times the design load.
付文光, 胡建林, 周建明. 浅析国内外最新预应力锚杆标准中的技术差异[J]. 岩土工程学报, 2017, 39(4): 676-682.
FU Wen-guang, HU Jian-lin, ZHOU Jian-ming. Technical differences in worldwide latest standards for prestress anchors. Chinese J. Geot. Eng., 2017, 39(4): 676-682.
[1] EN 1537 Execution of special geotechnical works: ground anchors[S]. 2013. [2] PTI DC35.1—14 Recommendations for prestressed rock and soil anchors[S]. 5th ed. 2014. [3] JGS4101—2012 グラウントアンカー—設計?施工基準、同解說[S]. 2012. (JGS4101—2012 Standard code and explain of design and construction for ground anchor[S]. 2012. (in Japanese)) [4] EN 1997—1 Eurocode 7: Geotechnical design - Part1: General rules[S]. 2004. [5] ISO/DIS 22477—5 Geotechnical investigation and testing- Testing of geotechnical structures-Part 5: Testing of anchorages[S]. 2009. [6] FHWA—IF—99—015 Geotechnical engineering circular No.4: ground anchors and anchored systems[S]. 1999. [7] BS 8081 British standard code of practice for ground anchorages[S]. 1989. [8] 薛守义, 刘汉东, 著. 岩体工程学科性质透视[M]. 郑州：黄河水利出版社, 2002. (XUE Shou-yi, LIU Han-dong. Perspective about nature of subject on rock mass engineering[M]. Zhengzhou: Yellow River Water Conservancy Press, 2002. (in Chinese)) [9] 付文光. 国内外锚杆试验类型简介[J]. 岩土工程学报, 2014, 36(增刊2): 191-197. (FU Wen-guang. Brief introductions for testing type of anchorage at home and abroad[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(S2): 191-197. (in Chinese)) [10] 付文光, 周 凯, 罗小满. prEN ISO 22477-5等规范中锚杆载荷试验方法简介–欧洲目前主要锚杆技术标准简介之四[J]. 岩土锚固工程, 2014(4): 15-23. (FU Wen-guang, ZHOU Kai, LUO Xiao-man. Introduction of the anchor test- Introduction 4 of Europe main anchor technology standards[J]. Geotechnical Anchor Engineering, 2014(4): 15-23. (in Chinese)) [11] 付文光, 胡建林. 荷载分散型锚杆张拉方法探讨与研究[J]. 铁道工程学报, 2011(9): 44-44. (FU Wen-guang, HU Jian-lin. The discussion and research on tensile methods for load-dispersive anchor[J]. Journal of Railway Fengineering Society, 2011(9): 44-44. (in Chinese)) [12] 付文光, 于会来, 耿 培. 预应力锚索应力测量误差的试验研究与对策[J]. 岩土工程学报, 2010, 32(8): 487-491. (FU Wen-guang, YU Hui-lai, GENG Pei. Experimental and solution of stress measurement error of pre-stress anchor[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(8): 487-491. (in Chinese))
