METHOD OF CONVEYING MUCK FROM GROUND-PRESSURE TYPE SHIELD MACHINE AND DEVICE THEREFOR

摘要

PURPOSE: To enhance the safety and the efficiency of conveyance by locating a pressure-proof tank on a muck conveying fluid passage extending from a chamber to a shield rear room so as to convey muck up to the ground surface together with conveying fluid on flowing. ;CONSTITUTION: In order to carry out fluid conveyance of muck produced by a ground pressure type excavation as is carried out a conventional method, it is carried out irrespective of a particle size and a moisture content of the muck. In this case, during the conveyance of muck, the volume of the muck is detected in a particle unit by an excavating volume detecting device 12 and a flowmeter 12b in order to precisely measure the volume. Further, a pressure- proof tank 10 is located on a muck conveying fluid passage 11 so that the muck is conveyed up to the ground surface, being accompanied with conveying fluid on flowing through the passage 11.;COPYRIGHT: (C)1995,JPO