IT1225184B - Devices to reinforce tunnels or land in general - Google Patents
Devices to reinforce tunnels or land in generalInfo
- Publication number
- IT1225184B IT1225184B IT8840129A IT4012988A IT1225184B IT 1225184 B IT1225184 B IT 1225184B IT 8840129 A IT8840129 A IT 8840129A IT 4012988 A IT4012988 A IT 4012988A IT 1225184 B IT1225184 B IT 1225184B
- Authority
- IT
- Italy
- Prior art keywords
- boring
- rod
- rotation
- tunnels
- land
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention applies to the field of devices which are used to reinforce walls and vaults of tunnels or land in general.The invention includes a cylindrical rod, onto which a boring mill is attached externally to bore holes in the wall or vault of a tunnel.Eccentric bushings are inserted along the length of the cylindrical rod, each of which has a tooth which engages a corresponding number of cylinders parallel to the bushings in the opposite sense of rotation from ground-boring rotation.As the rod rotates in the boring direction, the external cylinders rotate together with the rod.The rotation in the opposite direction to the boring of the cylindrical rod causes the external cylinders to move against the wall of the hole bored by the rod.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8840129A IT1225184B (en) | 1988-08-12 | 1988-08-12 | Devices to reinforce tunnels or land in general |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8840129A IT1225184B (en) | 1988-08-12 | 1988-08-12 | Devices to reinforce tunnels or land in general |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8840129A0 IT8840129A0 (en) | 1988-08-12 |
IT1225184B true IT1225184B (en) | 1990-11-02 |
Family
ID=11248597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8840129A IT1225184B (en) | 1988-08-12 | 1988-08-12 | Devices to reinforce tunnels or land in general |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1225184B (en) |
-
1988
- 1988-08-12 IT IT8840129A patent/IT1225184B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8840129A0 (en) | 1988-08-12 |
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