嵌岩地下连续墙模型试验研究和参数测定

Model test and parameter determination for rock embedded underground diaphragm wall

结合润扬长江公路大桥北锚碇基础工程地下连续墙设计,进行了地下连续墙承载能力和嵌岩部分基床系数测试的室内试验以及试验设计、结果误差的分析,检测了在设计荷载作用下地下连续墙的工作性态,发现其内力和变形带有深梁的特征,同时验证了基床系数设计取值的合理性.

In combination with the underground diaphragm wall design in north anchor project of the Runyang Yangtze River Highway Bridge, a laboratory experiment is performed for measurement of the bearing capacity of the diaphragm wall and the foundation bed modulus of the rock embedded section, and the experimental design and errors of the experimental results are also discussed. By inspection of the working behavior of the diaphragm wall under design loads, the similarity of the internal force and deformation of the diaphragm wall to those of the deep beam is found, and the rationality of the design value of the foundation bed modulus is verified.