水利学报Issue(2)：127-133,7.
重力坝高压水劈裂模拟方法与特高重力坝设计准则初步探讨
Simulation method of hydraulic fracturing and discussions on design criteria for super high gravity dams
摘要
Abstract
A new lab simulation method for concrete structure hydraulic fracturing test has been presented under tensile stress or compressive stress condition. Fracture mechanics has been used to verify the lab re⁃sult and calculation parameters used. Based on the results of the experiment, FEM analysis and compara⁃tive studies between super high gravity dams in China and other countries,estimated formula for hydraulic fracturing analysis on concrete structure and gravity dams were developed. It can be used to evaluate the safety of super high gravity dam considering hydraulic fracturing. Based on the results achieved, it may have safety problem for gravity dams over 200m designed by current specifications of China,USA or Swit⁃zerland,especially for RCC gravity dams,and therefore it is necessary to consider the hydraulic fracturing in the specification of gravity dams over 200m.关键词
重力坝/碾压混凝土/水力劈裂/模拟试验Key words
gravity dam/RCC/hydraulic fracturing/model test分类
建筑与水利引用本文复制引用
贾金生,汪洋,冯炜,常凊睿..重力坝高压水劈裂模拟方法与特高重力坝设计准则初步探讨[J].水利学报,2013,(2):127-133,7.基金项目
国家自然科学基金资助项目(50879095) （50879095）
