An explanation of the works of the tunnel under the Thames from Rotherhithe to Wapping |
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22 feet 50 feet abandoned Act of Parliament annexed apparatus appears archways attempted bed of sand beneath boards bottom brick brick-work bricklayers Brunel carriage carried cells clay commenced communication completed consequence curb cylinder depth dimensions Directors division double drift-makers earth effect Engineer excavation exhibited existence EXPLANATION extent facing feet 6 inches feet in diameter feet in height fixed force forward frames front given going gravel greater Greenwich ground horizontal screws hundred importance increase intended interest iron jack screws January London Bridge magnitude mass materially means miles miners month numbers obtain once operations opposite origin pass placed plate Poling Boards population position presenting PRINTER progress proposed quick sand raise reference river road-way Rotherhithe screws secure shaft shew shield shore side sketch stages Strand strata structure succession sunk supported suspended THAMES TUNNEL thickness transverse section undertaking Wapping whole Wooden workmen
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Page 10 - ... 80 feet the ground suddenly gave way, and sunk several feet at once, sand and water blowing up at the same time. Thus was the previous intelligence confirmed of the existence and the nature of the bed of sand in question, and which governed the engineer in the level he had proposed originally to take for his horizontal structure.
Page 14 - Tunnel had extended 400 feet under the river; these 400 feet of the Tunnel were excavated, and the double archways substantially completed with brick-work in ten months and a half. On the 18th of May, 1827, and again in the month of January, 1828, the river broke in, and filled the Tunnel ; thereby occasioning the apprehension that this unprecedented undertaking, which had excited so much interest, not only in England, but throughout Europe, might be abandoned.
Page 9 - Engineer to the undertaking, he began his operations by making preparation for a shaft of 50 feet in diameter, which he commenced at 150 feet from the river, on the Rotherhithe side. This he effected by erecting a substantial cylinder of brick-work of that diameter 42 feet in height, and 3 feet in thickness, which was sunk en masse into the ground. Upon the top of the cylinder was placed a steam engine for the pumping out of the water, and for the purpose of raising the excavated earth.
Page 7 - Brunei, in 1823, proposed and exhibited his Plan for constructing at once, and on a useful scale, a double and capacious road-way under the Thames, which was not only well received, but liberally supported by many gentlemen of rank and science, who were not discouraged by the extraordinary risks which an...
Page 13 - The Shield was placed in its first position at the bottom of the shaft by the 1st of January, 1826, and the structure of the double archway of the Tunnel was commenced under a bed of clay; but on the 25th of the same month, the substantial protection of clay was discovered to break off at once, leaving the Shield, for upwards of six weeks, open to a considerable influx of...
Page 12 - ... in breadth. They are divided into three stages or stories, thus presenting 36 chambers or cells for the workmen — namely, the miners, by whom the ground is cut down and secured in front ; and the bricklayers, by whom the structure is simultaneously formed.
Page 14 - On the llth of March this fault, or break in the clay, was cleared, and the Shield being again under a bed of clay, the work proceeded ; and, on the 30th of June, 1826, entered under the bed of the river; and by the 30th of April, 1827, the Tunnel had advanced 400 feet under the river; these 400 feet of the Tunnel were excavated, and the double archways substantially built with brick-work in ten months and a half.
Page 11 - The excavation which has been made for the Thames Tunnel is 38 feet in breadth and 22 feet 6 inches in height, presenting a sectional area of 850 feet, and exceeding 60 times the area of the drift which was attempted before. The base of...
Page 14 - Brunel's system of constantly protecting as much as possible every part of the soil during the excavation ; and finishing the structure in the most solid manner as the work proceeded., by the instrumentality wholly of the shield. Subsequent to these irruptions of the river...
Bibliographic information
| Title | An explanation of the works of the tunnel under the Thames from Rotherhithe to Wapping Opie collection of children's literature ; 039:041 |
| Author | Thames Tunnel company |
| Publisher | W. Warrington, 1840 |
| Original from | Oxford University |
| Digitized | Apr 10, 2007 |
| Length | 24 pages |
| Export Citation | BiBTeX EndNote RefMan |