Hole collapse and coal hole slipping construction process for soft rock stratum

The invention provides a soft rock stratum hole collapsing and coal slipping hole construction technology, and relates to the technical field of coal mine construction, the soft rock stratum hole collapsing and coal slipping hole construction technology comprises the following steps that S1, wood st...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NIAN FUTIAN, XIANG KEFEI, HUA RUI, WANG JIWEN, DING FENG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides a soft rock stratum hole collapsing and coal slipping hole construction technology, and relates to the technical field of coal mine construction, the soft rock stratum hole collapsing and coal slipping hole construction technology comprises the following steps that S1, wood stacks are arranged on the two sides of a scraper in the roadway direction on a coal slipping hole lower opening delivery platform; s2, I-shaped steel is used for supporting a top plate of the unsupported part in the middle of the slipping coal hole area on the uppermost layer; s3, a steel pipe is adopted and lowered to a lower opening section by section from top to bottom through the raise boring by means of slow twisting, and an installed steel pipe channel is used for gangue discharging and ventilation in later-period coal slipping hole construction; s4, a gap between the steel pipe and the bin wall of the slip coal hole is manually filled with guniting materials; s5, after the mixture is solidified, filling coal