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Учебник по английскому КУРС2.docx
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23.6 Answer the questions

  1. What are the main factors of air contamination in tunnels?

  2. Are there any distinct operations in tunnel maintenance? What are they?

  3. What problems can the accumulation of dust cause in railway tunnels?

  4. What does a maintenance crew examine to prevent derailment?

  5. What instruments can test tunnel height and width clearances?

  6. Do the gutters appear to be one of the vital elements in tunnel operation?

  7. Why are the ventilation facilities so essential for motorway tunnels?

  8. What ventilation types are suitable in tunnels?

  9. Why do safety measures depend on tunnel lightning?

23.7 Make up your own dialogues. Student A is the engineer, working with a team of specialists, responsible for after-inspection repair in the tunnel. Student B is the expert who consults the workers. They are discussing the tunnel problems. Use the following word combinations

Could you; I’d like to know; Can you tell me; What about; We need; We really must; We can manage it; It isn’t necessary; We don’t have to; We can do without; It was good planning; We didn’t change the structural look of it, but it looks better because we upgraded all of the lighting systems; The lighting is a big deal; When you’re talking about a three-mile tube underground, lighting becomes very important; There was some water damage that had crept in; This tunnel is the economic engine of the region, and now it’s becoming more accessible to traffic

Consult the Word list while reading the text

1. After-inspection repairing

ремонт после осмотра

2. Coarse dust

крупная пыль

3. Ductwork

система труб

4. Exhaust-air systems

вытяжная схема вентиляции

5. Exhaust gases

выхлопные газы

6. Incipient crack

зарождающаяся трещина

7. Height and width clearances

габариты по высоте и ширине

8. Longitudinal ventilation

продольная вентиляция

9. Plenum

приточная, нагнетательная вентиляция

10. Piston effect

порщневой эффект

11. Pipe lightning

освещение световодами

12. Rail fastening

рельсовое скрепление

13. Rail grinding

шлифовка рельсов

14. Rail joint

рельсовый стык

15. Supply-air system

приточная схема вентиляции

16. Track section

путевой участок

17 Trackwalker

обходчик

18. Tunnel Foreman

бригадир

19. Tunnel Manager

руководитель тоннельных служб

20. Tunnel Supervisor

инспектор по техобслуживанию

21. Ventilation plant

вентиляционная установка

22. Vent stack

шахтный ствол для вентиляции