2012, Volume 14, Issue 7
Strategic Study of CAE >> 2012, Volume 14, Issue 7
Research on key construction technologies of concrete dam heightening project
China Gezhouba Group Corporation, Yichang, Hubei 443002, China
Next Previous
Abstract
Based on construction practice of worldwide concrete dam heightening project, 4 key construction technologies of concrete gravity dam heightening project by the integral heightening mode on the existing dam by the down stream side and on the dam crest were systematically summarized. The 4 key technologies are concrete raw materials and mix proportion, jionting between new concrete and existing concrete, controlled demolition and transference of old structures, and resources temporal and spatrial allocation curing construction period, For each key construction technology, the construction technical difficulties, features and requirements were analyzed, and the technical measures and solving strategies were summarized to provide construction reference for the same type project in the future.
Keywords
construction technology ; dam heightening ; concrete dam ; hydraulic and hydropower engineering
Figures
图1
References
[ 1 ] Goblot H.Kebar en ian sans doute le plus ancien des barages-voates：1An 1300 Environ（Kebar in Iran possibly the ol dest arch dam:around1300A.D）[J].A rts et Manufactures（in French），1965，154：43-49.
[ 2 ] Toran J.Heightening of existing dams including methods of con-structing new dams in succesive tages[C]//6 th Intemat ional Commission of Large Dams:v1.Nova York，1958：303-365.
[ 3 ] 周厚贵.水电站扩建工程的施工问题与对策[J].湖北水力发电，2005（2）：1-3. link1
[ 4 ] 朱伯芳，张国新，吴龙砷，等.重力坝加高中减少结合面开裂措施的研究[J].水利学报，2007，38（6）：639-645. link1
[ 5 ] Reed IⅡIG E，Steele K A，StiftM T，et al.RCC for the heighte-ning of San Vicente Dam[J].Intemational Journal on Hy dropower and Dams，2003，10（5）：130-137.
[ 6 ] 赵志方，周厚贵，袁群，等.新老混凝土粘结机理研究与工程应用[M1.北京：中国水利水电出版社，2003.
[ 7 ] 周厚贵.丹江口大坝加高新老混凝土结合面人工键槽施工技术研究[J].南水北调与水利科技，2006，4（4）：8-10. link1
[ 8 ] 程润喜，周厚贵.新老混凝土结合面新型界面剂的研制[J].南水北调与水利科技，2007，5（6）：94-96，101. link1
[ 9 ] 周厚贵.混凝土控制拆除施工技术及其在丹江口大坝加高工程中的综合应用[J].中国工程科学，2009，11（2）：17-21. link1
[10] 曹生荣.复杂条件下混凝土坝施工模拟、优化与工程应用[R].中国葛洲坝集团公司，2008.
京公网安备 11010502051620号
