Word: subsoilers
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...most likely answer is new legislation to enforce reclamation. Some environmentalists point to laws in parts of Europe that make strip miners restore the land to the condition in which they found it-with rocks and subsoil below and topsoil above, all limed, re-seeded and fertilized. Such procedures in the U.S. would cost more per acre (at least $2,000) than an acre of prime mining land. Even so, President Nixon has already asked Congress to pass a bill that would at least make a dent in the problem-and consumers' pocketbooks. It would impose federal standards...
...Millions visiting Canada's Expo 67 thought they saw the world's most beautiful subway. Now there is a challenger. Who is the builder, and how does he make his subway "float" in an almost liquid subsoil? (See BUSINESS...
That shape, and the ingenious engineering that made the project feasible, is the handiwork of Mexico's largest builder, Bernardo Quintana. His box tunnel literally floats like a ship on subsoil that is 80% water. The trick was to remove precisely the right weight of soil and water without undermining buildings alongside the right of way. To do so, Quintana first built sidewalls for a trench, then removed the muck between them through a complex electroosmosis process of his own devising. The roof to form a tunnel came last. By the time the whole subway is completed in November...
...what dark subsoil our life is built...
...eight-lane Inner Belt highway. There was no surprise in the announcement; the DPW has long favored Brookline-Elm. Construction will be cheaper and easier -- had the alternate route been chosen, the department would have had to make extra efforts to stabilize the highway in the shifty subsoil of the Charles River Basin. The DPW would also have had to admit to the federal government (which pays 90 per cent of the highway's costs) that it was wrong more than a year ago when it first chose the Brookline-Elm route; the DPW was not to be moved easily...