METHOD FOR PREVENTING AND CONTROLLING ROCK BURST AT SOURCE BY MEANS OF COAL MINE ROOF AREA FRACTURING

Title:

METHOD FOR PREVENTING AND CONTROLLING ROCK BURST AT SOURCE BY MEANS OF COAL MINE ROOF AREA FRACTURING

Document Type and Number:

WIPO Patent Application WO/2024/027030

Kind Code:

A1

Abstract:

Disclosed is a method for preventing and controlling a rock burst at source by means of coal mine roof area fracturing, comprising: determination of a roof fracturing target layer and a position, wherein the roof fracturing target layer comprises a development roadway roof (51) of main development roadways (2), a preparation roadway roof (52) of main preparation roadways (3), and a working face roof (53) of a working face (4); fracturing of the development roadway roof and tunneling; fracturing of the preparation roadway roof and tunneling; and fracturing of the working face roof, tunneling, and stoping.

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Inventors:

PAN JUNFENG (CN)
MA WENTAO (CN)
ZHANG CHENYANG (CN)
GAO JIAMING (CN)
LU CHUANG (CN)

Application Number:

PCT/CN2022/128959

Publication Date:

February 08, 2024

Filing Date:

November 01, 2022

Export Citation:

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Assignee:

CCTEG COAL MINING RES INSTITUTE (CN)

International Classes:

E21C37/12; E21F17/00

Foreign References:

CN109736805A	2019-05-10
CN113236360A	2021-08-10
CN113404535A	2021-09-17
CN114837662A	2022-08-02
CN111305876A	2020-06-19
SU836364A1	1981-06-07

Attorney, Agent or Firm:

TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)

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