|
Abstract In view of the influence of ground surface subsidence due to the optimization of construction methods of large-span metro station in soft rock strata，numerical simulation is firstly used to optimize and compare five construction methods；and the eight-step method is selected tentatively as the optimized one. Then the similar material model test is conducted to verify it. The results turn out to be perfectly matched by comparison and analysis，and it is found that five construction methods are able to meet the needs of controlling ground surface subsidence and keeping structural stability，in which the eight-step method is more optimized in terms of the control effect of ground surface subsidence and the state of structural stress；and that the key is the working procedure No.14.
|
|
Received: 10 October 2009
|
|
|
|
