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OBJECTIVES OF A SOIL SURVEY - 14071_383
SOURCES OF INFORMATION - 14071_385

Engineering Aid 2 - Intermediate Structural engineering guide book
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Figure  16-1.—Typical  boring  log. The  soil   profile   (fig.   16-2)   is   a   graphical The soil profile has many practical uses in the representation  of  a  vertical  cross  section  from  the location, design, and construction of roads, airfields, surface downward through the soil layers. It shows the dams, and buildings. It greatly influences the location location of test holes and of any ledge rock encountered, of the finished grade line; these should, of course, be located so as to take full advantage of the best soils a  profile  of  the  natural  ground  to  scale,  field available at the site. The profile also shows whether soils identification of each soil type, thickness of each soil to be excavated in the course of construction are suitable stratum, profile of the water table, and profile of the for use in embankments or whether you require borrow finished grade line. Standard soil symbols should be soils instead. It may show the existence of undesirable used  to  indicate  the  various  soil  layers.  The  standard soils, such as peat or other highly organic soils; it may procedure   is   to   add   the   proper   color   symbols also show the existence of bedrock too close to the representing the various soil types you discover. surface. It aids in planning drainage facilities since these 16-6







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