三峡3期围堰碾压混凝土层面抗剪强度试验研究

Test and Study of Bedding Plane Shear Strength of Phase 3 Cofferdam Roller Compacted Concrete in the Three Gorges Hydropower Project

通过室内对三峡工程三期碾压混凝土围堰芯样抗剪强度进行的本体、裂缝面模拟试验,试验结果表明其碾压混凝土模拟裂缝面抗剪强度满足设计要求。试验结果为围堰安全运行提供了依据,围堰安全运行4年后成功拆除。

The laboratory core sample shear strength simulation test results of both the phase 3 roller compacted concrete cofferdam body and the crack planes in the three gorges project reveal that the shear strength of the roller compacted concrete simulated crack planes meet the design requirements. The test results provided the basis for safe operation of the cofferdam, which was successfully removed after 4 years of safe operation.