COMPOSITE ROCK-BREAKING CUTTERHEAD AND TUNNEL BORING MACHINE COMPRISING SAME

WIPO Patent Application WO/2024/083129

A1

Disclosed in the present invention are a composite rock-breaking cutterhead and a tunnel boring machine comprising same. The composite rock-breaking cutterhead comprises a disc cutter plate and a moving shield plate, the moving shield plate being arranged in front of the disc cutter plate, and the moving shield plate and the disc cutter plate being both driven by a tunnel boring machine main shaft; edge disc cutters, front disc cutters and slag outlets are provided on the disc cutter plate in the circumferential direction of the disc cutter plate; a plurality of recesses are formed in the radial direction of the disc cutter plate; a first sliding device is installed in each recess, a flame nozzle head and a low-temperature water nozzle being provided on the first sliding device, and the flame nozzle head and the low-temperature water nozzle performing spraying towards rock surfaces; second sliding devices capable of moving in the radial direction of the moving shield plate are provided on the moving shield plate, cutters being fixed to the second sliding devices, and the first sliding devices and the second sliding devices moving synchronously.

JP4216957

Blasting excavation method

WANG JUN (CN)
HAN JIANYONG (CN)
SUN WEN (CN)
LIU YONGKUI (CN)
ZUO CONGBING (CN)
ZHANG LEI (CN)
GAO QINGFENG (CN)
ZHENG YONGKE (CN)
SHAO GUANGBIAO (CN)
HU JINCHUN (CN)

PCT/CN2023/125025

April 25, 2024

October 17, 2023

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SHANDONG JIANZHU UNIV (CN)
CHINA RAILWAY 14TH BUREAU GROUP 2ND ENG CO LTD (CN)

E21D9/00

JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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