Appendix A - Reference pictures :

Lists A  - Construction of a tunnel for laying down of a ductile iron pipelines. Work located besides

the desk area of the Swimming Pool near the view station. Different work type is involved such as excavation for tunnel direction, formwork for reinforcement concrete, site suit for concrete and metal work for work place protection and structure for pre-cast tunnel cover.

Below pictures show the pipe work arrangement  :

1) Setting line
2)  Excavation work for the tunnel
3) Machine for excavation of the tunnel
4) Corner of the tunnel
5) Excavated tunnel
6) Beam structure for tunnel
7) Reinforcement bars for the tunnel
8) Formwork for the concrete work
9) Focus of the reinforcement bars
10) Corner of the reinforcement bars
11) Pipe installation for pumping concrete
12) Elbow of the concrete outlet
13) Vibration work for concrete
14) Dismantling the wood formwork
15) Main frame bracket installation for the pipeline
16) Appearance of the tunnel and pipe
17) Cover of the tunnel
18) Focus of the cover





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