南昌工程学院学报
南昌工程學院學報
남창공정학원학보
JOURNAL OF NANCHANG INSTITUTE OF TECHNOLOGY
2012年
4期
54-56,61
,共4页
底板裂缝%安全监测%实测数据%非线性有限元%裂缝成因
底闆裂縫%安全鑑測%實測數據%非線性有限元%裂縫成因
저판렬봉%안전감측%실측수거%비선성유한원%렬봉성인
cracks in bottom%safety monitoring%measured data%nonlinear FEM%causes of cracks
结合施工期大坝安全监测所得应力、温度等实测数据,运用非线性有限元法对泄水闸底板进行施工期仿真计算.通过对仿真计算结果与裂缝实际分布的对比分析,得出裂缝形成的主要成因是基础约束、温度应力,并提出了防治裂缝的针对性措施.
結閤施工期大壩安全鑑測所得應力、溫度等實測數據,運用非線性有限元法對洩水閘底闆進行施工期倣真計算.通過對倣真計算結果與裂縫實際分佈的對比分析,得齣裂縫形成的主要成因是基礎約束、溫度應力,併提齣瞭防治裂縫的針對性措施.
결합시공기대패안전감측소득응력、온도등실측수거,운용비선성유한원법대설수갑저판진행시공기방진계산.통과대방진계산결과여렬봉실제분포적대비분석,득출렬봉형성적주요성인시기출약속、온도응력,병제출료방치렬봉적침대성조시.
In order to analyze the different causes of various cracks in Xiajiang Hydro-junction, the sluice bottom is simulated with the nonlinear finite element method （FEM）, combining the stress and tempera- ture experimental data obtained from the dam safety monitoring process. Through the comparison and anal- ysis of actual conditions and the results with the actual distribution of cracks,it is concluded that the pri- mary factors causing different kinds of cracks are infrastructure constraints and temperature stress. The pa- per proposed some specific measures of prevention and treatment of cracks.
