China Railway Tunnel Group Co., Ltd

China

 
Total IP 24
Total IP Rank # 61,770
IP Activity Score 2.4/5.0    36
IP Activity Rank # 21,248

Patents

Trademarks

5 0
0 0
19 0
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Last Patent 2024 - Top plate jacking device and jac...
First Patent 2020 - Tbm parallel heading tunnel trun...

Latest Inventions, Goods, Services

2023 Invention Top plate jacking device and jacking construction method configured for v-shaped columns. The pre...
2022 Invention Mud cake formation prevention steel plate for shield cutter head, and simulation test table and t...
Invention Boring machine structure achieving front support, and working method. A boring machine structure ...
Invention Laboratory experiment device and experiment method for micro-perturbation grouting technology for...
Invention Expansion shell yielding anchor cable and construction method thereof. Disclosed are an expansion...
Invention Shield tunnelling test platform suitable for multiple large mechanical occasions and use method o...
Invention Adjacent pipeline safety pressure-testing device for shield tunneling construction. Disclosed is ...
Invention Subway waterproof facility. A subway waterproof facility, comprising a vault (1), the ground (2) ...
Invention Tunnel surrounding rock supporting method and system based on tunnel field deconstruction and rec...
2021 Invention Mixing device for improving measurement precision of shield slurry density meter. A mixing device...
Invention Groove pipe device for tunnel surrounding rock internal micro-fracture development characteristic...
Invention Tunnel field de-reconstruction theory-based method and system for supporting tunnel surrounding r...
Invention Active sorting muck-collecting device for slurry balancing shield. The present application disclo...
Invention Pipeline annular self-traveling guide apparatus and method. The application discloses a pipeline ...
Invention Tbm tunneling test bench for microwave-assisted rotary rock breaking. Provided is a TBM tunneling...
Invention Hard rock tunnel boring machine combining microwave heating with high pressure water cutting for ...
Invention Tbm tunneling test bench for microwave-assisted rotary rock-breaking. A TBM tunneling test bench ...
Invention Hard rock tunnel boring machine combining microwave heating and high-pressure water cutting to as...
Invention Tunnel disease monitoring system and method for high-speed train. Disclosed are a tunnel disease ...
Invention Microwave-assisted tbm double-hob linear-cutting rock breaking test device. Disclosed is a microw...
Invention Hybrid tunnel boring machine. A hybrid tunnel boring machine, comprising a cylindrical external r...
2020 Invention Shielding machine having telescopic normal-pressure tool changing compartment. A shielding machin...
Invention Technique for controlling tunneling parameters of shielded tunneling machine for rocky region at ...
Invention Broken stratum tbm jamming risk early-warning method based on torque-thrust ratio. Disclosed is a...
Invention Tbm parallel heading tunnel trunk construction method. A TBM parallel heading tunnel trunk constr...