A new pattern for controlling chamber earth pressure in shield tunneling and its experimental investigation
Abstract：A new pattern for controlling chamber earth pressure in shield tunneling was proposed to achieve speediness and stableness in controlling process. The rotating speed of screw conveyor and thrusting speed of shield were deter- mined as controlled variables in this investigation. The chamber earth pressure in shield tunneling is adaptively and au- tomatically controlled. The adjusting thrusting speed of shield can be more effective to control chamber earth pressure because the diameter of shield cutterhead is larger than one of the screw conveyor. The experimental results show that the proposed new control strategy can increase speediness and stableness in comparison with singly adjusting rotating speed of screw conveyor.
Keywords：shield machinechamber earth pressurecontrol patternadaptive control
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1118-1122 )