开挖步距

20 m

40 m

60 m

80 m

100 m

顶板位移/cm

−0.4347

−3.6561

−5.3426

−7.2147

−8.6664

底板位移/cm

0.2965

2.5692

3.4508

4.2655

4.7566

相对位移变量/cm

0.7312

6.2253

8.7934

11.4802

13.423