西北水电
西北水電
서북수전
NORTHWEST WATER POWER
2015年
2期
60-62
,共3页
混凝土%浇筑%顽症%处理
混凝土%澆築%頑癥%處理
혼응토%요축%완증%처리
concrete%placement%defect%handling
采用钢模台车全断面浇筑引水隧洞衬砌混凝土，脱模后中心线以下混凝土表面出现大面积水纹和气泡，此缺陷在类似工程中均有不同程度出现，是混凝土浇筑的顽症，文章从成因分析入手，结合现场实践，不断优化调整，找到了消除水纹和气泡的措施，为类似工程提供了借鉴。
採用鋼模檯車全斷麵澆築引水隧洞襯砌混凝土，脫模後中心線以下混凝土錶麵齣現大麵積水紋和氣泡，此缺陷在類似工程中均有不同程度齣現，是混凝土澆築的頑癥，文章從成因分析入手，結閤現場實踐，不斷優化調整，找到瞭消除水紋和氣泡的措施，為類似工程提供瞭藉鑒。
채용강모태차전단면요축인수수동츤체혼응토，탈모후중심선이하혼응토표면출현대면적수문화기포，차결함재유사공정중균유불동정도출현，시혼응토요축적완증，문장종성인분석입수，결합현장실천，불단우화조정，조도료소제수문화기포적조시，위유사공정제공료차감。
The steel form trolley is applied to place the lining concrete of the headrace tunnel at full section.After the form is removed, waterwave and air bubbles in a large area occur on the concrete surface below the centerline.Such defects happen in certain degree in the similar works and difficult to avoid.In this paper, measures for elimination of waterwave and air bubbles on the concrete surface are found through its cause analysis, site practice, continuous optimization and adjustment, providing reference for similar projects.
