A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tunneling with a roof shield at East Boston
Illustrated description of the method of driving a double-track tunnel by means of advance headings on each side for the walls, with a roof shield run forward afterward on top of these walls. (900 w.)
Tunneling with a roof shield at East Boston
Illustrated description of the method of driving a double-track tunnel by means of advance headings on each side for the walls, with a roof shield run forward afterward on top of these walls. (900 w.)
Tunneling with a roof shield at East Boston
Eng Rec
1901
Article (Journal)
English
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Shield tunneling for the Boston subway
Engineering Index Backfile | 1898
Engineering Index Backfile | 1900
Timbered and roof-shield tunneling in deep loose-ground subway section
| Engineering Index Backfile | 1921