矮寨大桥锚碇基岩摩阻力试验研究

Testing study on base resistance of the anchors at Aizhai bridge

文章采用现场直剪试验,研究了矮寨悬索大桥锚碇基底基岩与混凝土胶结面的抗剪强度,并根据试验研究成果,分析了各种影响因素,研究确定整个锚碇范围内基底摩阻力情况。

The shear strength parameters of the contacting surface between bedrock and anchor concrete is obtained through in-situ shear test at the Aizhai Suspension Bridge. The testing results show that there is significant cohesion on the contacting surface between full weathered rock and concrete because of the rough contacting surface. The available shear strength parameters of the contacting surfaces between concrete and full to slight weathered rocks on the anchor base according to the testing results.