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Match up the words on the left with the definitions on the right.
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| 1) fan 2) reinforce 3) jack 4) cross-passages 5) adjacent 6) bentonite 7) cantilever 8) descend 9) slab 10) pad 11) chamber 12) launch 13) bore 14) viaduct | a) a mineral b) a thick flat, often rectangular or square piece of stone c) an enclosed space under the ground d) make stronger by adding more men or material e) situated near or next to f) cross narrow ways (corridors) through something g) a device for raising heavy weights off the ground h) set in motion, send, aim i) device, making a current of air j) to go down k) a beam, usually of metal, projecting from a wall to support a structure l) a layer to protect something m) a deep hole made in the ground, to make a hole n) a long bridge carrying a road or railway across a river, valley |
Group the words which can go together.
| 1) the ballast cantilever 2) concrete viaduct 3) to jack 4) evacuation 5) ventilation 6) top-down 7) to drive 8) tunnel | a) a derailed train b) a tunnel c) plant d) boring machine e) method f) walkway g) of 20 spans |
Give synonyms to these words.
Tube, tie, excavate, launch, next, middle, replace, go down, ruin, drill.
Read the text again and answer the questions.
1. When is the line expected to open for revenue service?
2. What machine was used to bore through water-bearing sand and gravel?
3. Is finished diameter 5.2 m or 1.2 m wider?
4. What was used to support the soft ground?
5. What method was used in mounting the concrete viaduct deck over the water?
6. How does the line terminate?
7. What measures are taken to reduce noise?
8. Are there any safety specifications?
Complete the sentences to summarize the text.
Boring of the 1080 m long twin tunnels under the River Thames was finished …………
..............................................................................................................................................
The new line runs from the present Island Gardens branch to a new underground station at......................................................................................................................................
Some old viaducts are.............................................. but some.........................................
The same boring machine was used to drive.....................................................................
Geology was difficult because of.............................................................. that’s why........
.............................................................................................................................................
Finished diameter within concrete segments is enlarged because................................
..............................................................................................................................................
The tunnel has one cross-passage to...................................................................................
At Cuty Sark station, which is situated close to the river the rails are..............................
..............................................................................................................................................
Diaphragm walls were excavated using............................................................................
The line then rises and climbs on the.................................................................................
On the viaduct the minimum curve radius of....................................................................
The line then descends the.................................................................................................
To prevent noise baseplates rest on....................................................................................
Safety specifications require...............................................................................................
Find out if this summary corresponds to the article.
The article contains the detailed information about the new Docklands line, passing under the Thames. It describes the route, geology, methods of boring, technical specifications of machines used, methods of noise prevention and safety measures.
Read the Russian text and render it in English.
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