Driving transverse tunnels starting from existing tunnels

Industry

CPC
E21D9/008

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D9/00Tunnels or galleries, with or without linings Methods or apparatus for making thereof Layout of tunnels or galleries

Current Industry

E21D9/008Driving transverse tunnels starting from existing tunnels

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Guiding type miniature pipe-jacking construction method
- Patent number 11,346,218
- Issue date May 31, 2022
- GUANGZHOU MUNICIPAL ENGINEERING GROUP LTD.
- Guanfeng An
- E21 - EARTH DRILLING MINING
Information Patent Grant
Procedure for the construction of cross passages in double pipe tun...
- Patent number 9,890,637
- Issue date Feb 13, 2018
- SWS Engineering S.p.A.
- Paolo Cucino
- E21 - EARTH DRILLING MINING
Information Patent Grant
Auxiliary tunneling apparatus
- Patent number 9,617,853
- Issue date Apr 11, 2017
- Komatsu Ltd.
- Kazunari Kawai
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunnel excavation method
- Patent number 9,388,690
- Issue date Jul 12, 2016
- Komatsu Ltd.
- Kazunari Kawai
- E21 - EARTH DRILLING MINING
Information Patent Grant
Main-ancillary tunnel excavator
- Patent number 5,634,692
- Issue date Jun 3, 1997
- Taisei Corporation
- Kenichi Kaneko
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of building underground cavern and tunneling machine
- Patent number 5,118,220
- Issue date Jun 2, 1992
- Kabushiki Kaisha Kematsu Seisakusho
- Kihachior Furumi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Formation of cavities in the bed of a sheet of water
- Patent number 3,998,061
- Issue date Dec 21, 1976
- C. G. Doris (Compagnie Generale pour les Developement Operationnels des Riche...
- Christian Jackie Rederon
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
3767263
- Patent number 3,767,263
- Issue date Oct 23, 1973
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
RIGHT-ANGLE TURNING METHOD FOR SMALL-DIAMETER TBM EXPLORATION ADIT...
- Publication number 20240151143
- Publication date May 9, 2024
- PowerChina Northwest Engineering Corporation Limited
- Youlin Wang
- E21 - EARTH DRILLING MINING
Information Patent Application
PROCEDURE FOR THE CONSTRUCTION OF CROSS PASSAGES IN DOUBLE PIPE TUN...
- Publication number 20160319664
- Publication date Nov 3, 2016
- SWS ENGINEERING S.P.A.
- Paolo Cucino
- B61 - RAILWAYS

Driving transverse tunnels starting from existing tunnels

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Guiding type miniature pipe-jacking construction method

Procedure for the construction of cross passages in double pipe tun...

Auxiliary tunneling apparatus

Tunnel excavation method

Main-ancillary tunnel excavator

Method of building underground cavern and tunneling machine

Formation of cavities in the bed of a sheet of water

3767263

Patents Applicationslast 30 patents

RIGHT-ANGLE TURNING METHOD FOR SMALL-DIAMETER TBM EXPLORATION ADIT...

PROCEDURE FOR THE CONSTRUCTION OF CROSS PASSAGES IN DOUBLE PIPE TUN...