Abstract: Based on the Wuhan Yangtze River shield tunnel,model test of segment lining structure with different water and earth pressure is fulfilled combined shield tunnel-ground complex simulation facility with rotary water pressure device.At last,the paper analyzes on the test results of static mechanical behavior characteristics of shield segment of the tunnel lining.The analysis shows:(1) nine uniform blocks are superior to nine add one uniform bocks in mechanical properties;(2) the 180° stagger joint assembling method is preferred in the project;(3) for the large broad segment,the central place is less affected by the bolts shear force than the edge.