Shaft station chamber (Underground Mine and Shaft Works)
An 8 m square shaft station excavated at 5.6 m clear height, with arched drift openings north and south, a 3.6 m by 2.4 m shaft opening through the back, a lined shaft sleeve above with buntons and guides, a steel roof frame and a named landing gate.
- 格式
- GLB
- 文件大小
- 49 KB
- 三角面
- 936
- 许可
- CC0 1.0