OXYGEN SUPPLY, COOLING AND DUST REMOVAL METHOD FOR TUNNEL CONSTRUCTION

WIPO Patent Application WO/2024/022005

A1

Disclosed in the present invention is an oxygen supply, cooling and dust removal method for tunnel construction. The method comprises: continuously digging a plurality of pilot tunnels forward in the same direction; providing a transverse channel, which is used for connecting the pilot tunnels, every X meters in the tunneling direction; importing outside air into a tunnel face of each pilot tunnel in a blowing ventilation mode; measuring the oxygen content, the temperature and the dust content near the tunnel face; when the oxygen content reaches a threshold A1, performing local oxygen production near the tunnel face by means of a mobile oxygen production device; when the temperature reaches a threshold B1, performing local cooling near the tunnel face by means of a mobile cooling device; and when the dust content reaches a threshold C1, performing local dust collection near the tunnel face by means of a mobile dust removal device. When a blowing ventilation mode gradually fails, the operation environment near a tunnel face is improved in a targeted mode by means of mobile devices, such that construction requirements can be met.

XIONG SHENG (CN)
CHEN DEBIN (CN)
FU JUN (CN)
QIAO SHIFAN (CN)
FAN CHUANGANG (CN)

PCT/CN2023/104148

February 01, 2024

June 29, 2023

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CHINA RAILWAY NO 5 ENG GROUP (CN)
UNIV CENTRAL SOUTH (CN)

E21F1/00; E21F5/00; E21F17/18

CN115324625A	2022-11-11
CN110439604A	2019-11-12
CN114412537A	2022-04-29
CN109958467A	2019-07-02
CN112412518A	2021-02-26
CN113605953A	2021-11-05
CN205243548U	2016-05-18
EP0240713A1	1987-10-14

CHANGSHA ZONEYOUNG INTELLECTUAL PROPERTY AGENCY(GENERAL PARTNERSHIP) et al. (CN)

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