摘要
针对分层碾压的施工方法使碾压混凝土坝坝体呈层状结构且具横观各向同性特征,将碾压混凝土施工层面视为横观各向同性体,通过对施工层面的本体和层面影响带进行力学模型概化,提出了施工层面在层面水平、层面垂直及任意层面倾角下的变形参数的理论解,并以某碾压混凝土重力坝为例进行求解。研究结果表明,采用等效参数模式的有限元计算结果与施工层面模式的有限元计算结果较吻合,方法合理,计算效率高,可供类似工程计算借鉴。
Owing to compaction in layers. RCCD has the stratified structure and presents the characteristics called transverse isotropy. The construction interfaces of RCCD are regarded as transverse isotropy substance in this paper. Through carrying on a mechanical model to construction interfaces and effect zones, theoretical solutions of deformation parameter are proposed when construction interfaces are horizontal, vertical,and at arbitrary angle. The results show that as long as the deformation parameter of the noumenon and the effect zones, the thickness of RCCD noumenon and the effect zones are known,we can calculate not only the equivalent deformation parameter of the RCC construction interfaces that are rolled flatly,but also the equivalent deformation parameter of the RCC construction interfaces that are rolled inclined.
出处
《水电能源科学》
北大核心
2009年第4期77-80,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(50539010
50539110
50539030-1-3
50579010)
中国水电工程顾问集团公司科技基金资助项目(CHC-KJ-2007-02)
教育部博士点基金资助项目(20070294023)
关键词
碾压混凝土坝
施工层面
变形参数
理论解
RCCD
construction interfaces
equivalent deformation parameters
theoretical solution
