Earth pressure balance shield simulation device and method for quicksand stratum excavation

The invention provides a quicksand stratum excavation earth pressure balance shield simulation device and method, relates to the field of shield simulation equipment, and aims to solve the problems that support is inconvenient and an excavation surface is easy to collapse when quicksand stratum excavation is simulated at present. A duct piece is arranged outside a support simulation module and a self-unlocking module in a sleeving manner and enters a tunnel along with a tunneling module; the process of assembly in the tunnel after excavation is omitted, and after excavation is completed, the self-unlocking module can be withdrawn out of the tunnel along with the supporting simulation module, so that the excavation module and the duct piece placed in the tunnel are supported together, collapse of an excavation face is avoided, and a stable supporting space needed by a test is formed. 本发明提供一种流沙地层开挖土压平衡盾构模拟装置及方法，涉及盾构模拟设备领域，针对目前模拟流沙地层开挖时支护不便以及容易出现开挖面倾塌的问题，管片套设于支护模拟模块和自解锁模块外，跟随掘进模块进入隧道内，省去开挖后在隧道内拼装的过程，在掘进完成后，自解锁模块