E21D9/06 - CPC Classification Index

ClassID:

135979 ⎘

E21D9/06 - CPC Classification

Classification description:

Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining

Sub-classes:

E21D2009/0642 » {the shield having means for additional processing at the front end} 0
E21D9/0607 » {the shield being provided with devices for lining the tunnel, e.g. shuttering } 8
E21D9/0621 » {Shield advancing devices} 6
E21D9/0628 » {Control of the shields, e.g. of the hydraulic advancing cylinders } 0
E21D9/0635 » {Tail sealing means, e.g. used as end shuttering} 2
E21D9/0692 » {Cutter drive shields} 2
E21D9/08 » with additional boring or cutting means {other than the conventional cutting edge of the shield} 7

Recent Application in this class:

20240200448

2024-06-20

TUNNEL EXCAVATION DEVICE

20230175395

2023-06-08

METHOD AND SYSTEM OF CONSTRUCTING AN UNDERGROUND TUNNEL

20230051333

2023-02-16

Directional drilling-exploring-monitoring integrated method for guaranteeing safety of underwater shield tunnel

20220003115

2022-01-06

Method and system of constructing an underground tunnel

20210033216

2021-02-04

Systems and methods for underground pipe installation and soil clearing

20200208518

2020-07-02

Systems and methods for detection of underground voids

20190284879

2019-09-19

Device for producing a cavity in a soil

20190032430

2019-01-31

Tunnel boring device and system for the hydraulic removal of cuttings, and system for producing a stable fluid pressure for a boring fluid in the region of a cutting disk of the tunnel boring device