施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
12期
1-3
,共3页
水利枢纽%泄水闸%牛腿%施工技术%优化
水利樞紐%洩水閘%牛腿%施工技術%優化
수리추뉴%설수갑%우퇴%시공기술%우화
hydro-junction%sluice%corbel%construction%optimization
峡江水利枢纽工程泄水闸闸墩牛腿分为上游侧外挑牛腿和弧门支座牛腿,悬挑结构的牛腿混凝土体积大,结构质量大,尤其是泄水闸上游侧外挑牛腿悬挑长度为5m,采用常规的钢管支撑模板十分困难,承重要求高,材料多,费用大。通过对方案的研究论证和优化,采用工字钢反拉模板、多卡大模板结合脚手架支撑模板等方法,顺利按节点要求完成了闸墩牛腿施工。
峽江水利樞紐工程洩水閘閘墩牛腿分為上遊側外挑牛腿和弧門支座牛腿,懸挑結構的牛腿混凝土體積大,結構質量大,尤其是洩水閘上遊側外挑牛腿懸挑長度為5m,採用常規的鋼管支撐模闆十分睏難,承重要求高,材料多,費用大。通過對方案的研究論證和優化,採用工字鋼反拉模闆、多卡大模闆結閤腳手架支撐模闆等方法,順利按節點要求完成瞭閘墩牛腿施工。
협강수리추뉴공정설수갑갑돈우퇴분위상유측외도우퇴화호문지좌우퇴,현도결구적우퇴혼응토체적대,결구질량대,우기시설수갑상유측외도우퇴현도장도위5m,채용상규적강관지탱모판십분곤난,승중요구고,재료다,비용대。통과대방안적연구론증화우화,채용공자강반랍모판、다잡대모판결합각수가지탱모판등방법,순리안절점요구완성료갑돈우퇴시공。
Pier corbel for Xiajiang Hydro-junction Sluice is divided into upstream cantilever corbel and radial gate support corbel. The corbel of the cantilever structure has a large volume of concrete and heavy weight, especially the cantilever length in sluice upstream cantilever corbel is 5m. The steel formwork support has lots of disadvantages such as high load-bearing requirements, wasting materials, and high cost. Through the research and optimization, the construction of pier corbel is smoothly completed with the method of the reverse drawing formwork, the combination of Doka formwork and scaffold support formwork.