A Treatise on Roads: Wherein the Principles on which Roads Should be Made are Explained and Illustrated, by the Plans, Specifications, and Contracts Made Use of by Thomas Telford, Esq. on the Holyhead RoadLongman, Orme, Brown, Green, and Longmans, 1838 - 465 sider |
Fra bogen
Resultater 1-5 af 79
Side 65
... inches in thickness . * Whereas , instead of this weak and defective system , it may be laid down as a general rule ... 4 inches . 4 ditto . 4 ditto . 3 ditto . Almost all other roads , which are commonly considered good ones , would ...
... inches in thickness . * Whereas , instead of this weak and defective system , it may be laid down as a general rule ... 4 inches . 4 ditto . 4 ditto . 3 ditto . Almost all other roads , which are commonly considered good ones , would ...
Side 83
... four inches of the surface mould , and hay seeds should be sown on it ; by this plan the slopes will soon be covered with grass , which will be a great means of preventing them from slipping . When stones can be got the slopes should be ...
... four inches of the surface mould , and hay seeds should be sown on it ; by this plan the slopes will soon be covered with grass , which will be a great means of preventing them from slipping . When stones can be got the slopes should be ...
Side 88
... inches in thickness , to face them with stone . In the Oxford clay , which covers so great a portion of the midland ... four to one ; and when this occurs it is extremely difficult to re - establish them . In limestone strata , if solid ...
... inches in thickness , to face them with stone . In the Oxford clay , which covers so great a portion of the midland ... four to one ; and when this occurs it is extremely difficult to re - establish them . In limestone strata , if solid ...
Side 90
... four inches thick , evenly laid , and closely jointed . " The slopes of the cuttings on the southern sides are to be three horizontal to one perpendi- cular , and those of the northern side to be two horizontal to one perpendicular ...
... four inches thick , evenly laid , and closely jointed . " The slopes of the cuttings on the southern sides are to be three horizontal to one perpendi- cular , and those of the northern side to be two horizontal to one perpendicular ...
Side 92
... four feet deep , and eighteen inches wide at bottom ; the peat dug out of these drains is to be spread over the surface of the roadway in form of a ridge , taking care to previously cover all the very soft and swampy places with dried ...
... four feet deep , and eighteen inches wide at bottom ; the peat dug out of these drains is to be spread over the surface of the roadway in form of a ridge , taking care to previously cover all the very soft and swampy places with dried ...
Indhold
235 | |
241 | |
244 | |
251 | |
257 | |
263 | |
272 | |
295 | |
100 | |
118 | |
130 | |
156 | |
167 | |
173 | |
185 | |
187 | |
191 | |
203 | |
209 | |
231 | |
303 | |
310 | |
321 | |
338 | |
348 | |
360 | |
367 | |
385 | |
433 | |
436 | |
451 | |
458 | |
Andre udgaver - Se alle
Almindelige termer og sætninger
Allesley arch Archway Road axles bottom breadth brick bridge broken stones built carriage centre coach coating commissioners constructed contract contractor Coventry cross drains DAVIES GILBERT depôts depth draught dynamometer earth eighteen inches elasticity embankments engineer expense experiments feet wide fences foot footpath fore wheels formed foundation four inches friction gravel ground half hard Hartshill height hill hind wheels Holyhead Road horizontal horses improvement inches deep inches thick inches wide instrument John Kershaw John Macneill labour laid length line of road manner masonry ment miles mortar mound necessary nine inches paved pavement placed Plate VII proper quicksets rails rates of inclination repair road-making roadway ruts side channels side springs six inches slopes specification spirit level springs square streets surface surveyor Telford theodolite Thomas Baylis three feet three inches trustees turnpike roads turnpike trusts upper velocity waggon whole wing walls
Populære passager
Side 20 - They will here meet with rutts which I actually measured four feet deep, and floating with mud only from a wet summer; what therefore must it be after a winter?