The Sea-coast: (1) Destruction (2) Littoral Drift (3) ProtectionLongmans, Green, and Company, 1902 - 361 páginas This title deals with the effects of erosion and littoral drift on the English and continental coast-lines bordering the North Sea, and outlines protective measures including sea-walls and groynes. |
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Página 87
... washed away ; or if falling on the back of the wall , the earth is washed out in a similar manner , leaving the wall bare . Another cause of disruption arises from stones projecting from the SEA - WALLS . 87.
... washed away ; or if falling on the back of the wall , the earth is washed out in a similar manner , leaving the wall bare . Another cause of disruption arises from stones projecting from the SEA - WALLS . 87.
Página 88
... washed out . The cavities thus made are frequently increased by shellfish . Every blow of the wave on the surface , where these cavities occur , acts in the same manner as an hydraulic ram , and in time forces the face stones outwards ...
... washed out . The cavities thus made are frequently increased by shellfish . Every blow of the wave on the surface , where these cavities occur , acts in the same manner as an hydraulic ram , and in time forces the face stones outwards ...
Página 96
... washes it away . The failure of a timber sea - wall due to the pressure of the earth at the back takes place much more frequently from the yielding of the earth in front of the piles than by their fracture at the point where they enter ...
... washes it away . The failure of a timber sea - wall due to the pressure of the earth at the back takes place much more frequently from the yielding of the earth in front of the piles than by their fracture at the point where they enter ...
Página 101
... washed away the tar pavement , leaving the chalk filling at the back of the wall bare , and this was subsequently washed out and the wall destroyed . A new wall was subse- quently constructed for the owners of the property . This wall ...
... washed away the tar pavement , leaving the chalk filling at the back of the wall bare , and this was subsequently washed out and the wall destroyed . A new wall was subse- quently constructed for the owners of the property . This wall ...
Página 108
... washed down and broken through . This protection consists of covering the face of the sandbank with 3 - inch planking spiked to walings bolted to fir piles 9 feet long by 7 inches square , spaced 4 to 5 feet apart each way , driven ...
... washed down and broken through . This protection consists of covering the face of the sandbank with 3 - inch planking spiked to walings bolted to fir piles 9 feet long by 7 inches square , spaced 4 to 5 feet apart each way , driven ...
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The Sea-coast: 1. Destruction, 2. Littoral Drift, 3. Protection William Henry Wheeler Vista completa - 1902 |
Términos y frases comunes
12 feet 20 feet alluvium angle bank of shingle basalt beach in front beach material Blackpool boulder clay boulders Bridlington carried chalk chalk cliffs channel chert clay coast coast-line composed concrete considerable constructed Crown 8vo denudation deposited depth derived direction distance dunes east effect entrance erected erosion estuary extends face feet high Felixstowe flints flood tide foot gravel groynes harbour headland heavy gales height high tides high water Humber Illustrations inches in diameter island jetty Kilnsea land length limestone littoral drift London Clay low groynes low water marshes mile wide Morecambe Bay on-shore gales pebbles pier piles placed planking promenade protection quantity quartzite rise river rocks sand and shingle sand-hills sandstone sandy sea-wall seaward shingle and sand shingle-bank shore slope spit spring tides Spurn Point stones surface tidal timber varying wall washed waves breaking width wind Withernsea yards wide
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