摘要
通过在坝址区进行５组砼与弱风化带下部岩石胶结面现场抗剪试验研究工作，分析了岩体结构、风化程度、砼抗压强度及起伏差对抗剪强度的影响，在进一步分析大坝建基面与试件胶结面抗剪强度之间差异的基础上，提出取用ｆ＝１．２，ｃ＝１．６ＭＰａ作为大坝建基面抗滑稳定校核计算参数的建议。
Based on the results of field shear test performed in damsite with five groups of cementedsurfaces between concrete and substratum of weakly weathered zone,this paper analyzes the effect ofrockmass structure, degree of weathering,concrete comprcssion strength,and uneveness of cementedsurface on shear strength.On the basis of further analyzing the difference between dam foundtion sur-face and test cemented surface in shear strength way,the author suggests using f=1.2and c=1.6MPa as the calculating parameters for checking the anti-slide stability on dam foundation surface.
出处
《长江科学院院报》
CSCD
北大核心
1994年第4期52-56,共5页
Journal of Changjiang River Scientific Research Institute
关键词
混凝土重力坝
坝基
抗剪强度
岩体
dam foundation
contact surface
rockmass
concrete strength
standard value
