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The book explores a version of pole shift hypothesis postulated by Professor Charles Hapgood in two volumes, plus the 1967 book Cataclysms of the Earth by Hugh Auchincloss Brown. When Brown published "Cataclysms", he was in his 90s, so he is represented in the novel by the character Herbert Allan Boardman (The "HAB" of the title) also in his 90s.
A basement wall is thus one kind of retaining wall; however, the term usually refers to a cantilever retaining wall, which is a freestanding structure without lateral support at its top. [2] These are cantilevered from a footing and rise above the grade on one side to retain a higher level grade on the opposite side.
The wall face is often of precast, segmental blocks, panels or geocells that can tolerate some differential movement. The walls are infilled with granular soil, with or without reinforcement, while retaining the backfill soil. Reinforced walls utilize horizontal layers typically of geogrids. The reinforced soil mass, along with the facing ...
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Allan Wesley Eckert (January 30, 1931 – July 7, 2011) [1] was an American novelist and playwright who specialized in historical novels for adults and children, and was also a naturalist. His novel Incident at Hawk's Hill (1971) was initially marketed to adults and selected by Reader's Digest Condensed Books .
Ecology block with rebar loop on top for use with heavy equipment. An ecology block, also known as an eco-block or ecoblock, is a type of recycled concrete block used to make retaining walls. Ecology blocks are manufactured using concrete left over from other construction processes.
Incident at Hawk's Hill is a 1971 children's book by naturalist and writer Allan W. Eckert.Supposedly based on a true event, [1] it is a historical novel centering on a six-year-old boy who gets lost on the Canadian prairie and survives for two months thanks to a mother badger.
Rankine's theory (maximum-normal stress theory), developed in 1857 by William John Macquorn Rankine, [1] is a stress field solution that predicts active and passive earth pressure.