Excavation controlling method in hydraulic shield tunnelling

Details Excavation controlling method in hydraulic shield tunnelling Excavation controlling method in hydraulic shield tunnelling

1980-12-08

1983-05-24

Swisher, S. Clement

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

73432R, 175 48, 405138, E21D 906

Patent

active

043848079

ABSTRACT:
An excavation controlling method for hydraulic shield tunnelling wherein decisions are made during advances of tunnel excavation on whether respective excavated soil amounts per macroscopic unit distance belong to the same statistic population and, with respect to excavated amounts per microscopic unit distance divided out of the macroscopic unit distance, whether excavated amounts per microscopic unit distance of the same dividing order belong to the same statistic population.

REFERENCES:
patent: 3778107 (1973-12-01), Haspert
patent: 4040666 (1977-08-01), Uchida
patent: 4171848 (1979-10-01), Ono

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