Method of pipeline filling the interstices of controlled caving

Details Method of pipeline filling the interstices of controlled caving Method of pipeline filling the interstices of controlled caving

1985-04-11

1988-02-23

Stodola, Nancy J.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405267, 299 11, E21F 1500, E02D 312

Patent

active

047267127

ABSTRACT:
In conjunction with the face mining of bituminous coal, previously excavated or some portions of the tunnel are collapsed in a manner to form a mass of debris into which a mixture of electrostatic filter ash and water is injected to stabilize the structure.

REFERENCES:
patent: 1004419 (1911-09-01), Griffith
patent: 3500934 (1970-03-01), Magnuson
patent: 3817039 (1974-06-01), Stewart et al.
patent: 4056939 (1977-11-01), Alvarez-Calderon
patent: 4101333 (1978-07-01), Wayment
patent: 4289354 (1981-09-01), Zakiewicz
patent: 4340254 (1982-07-01), Barsi et al.
patent: 4417760 (1983-11-01), Vidal

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