Figure 16-1.—Typical boring log.The soil profile (fig. 16-2) is a graphicalThe soil profile has many practical uses in therepresentation of a vertical cross section from thelocation, design, and construction of roads, airfields,surface downward through the soil layers. It shows thedams, and buildings. It greatly influences the locationlocation of test holes and of any ledge rock encountered,of the finished grade line; these should, of course, belocated so as to take full advantage of the best soilsa profile of the natural ground to scale, fieldavailable at the site. The profile also shows whether soilsidentification of each soil type, thickness of each soilto be excavated in the course of construction are suitablestratum, profile of the water table, and profile of thefor use in embankments or whether you require borrowfinished grade line. Standard soil symbols should besoils instead. It may show the existence of undesirableused to indicate the various soil layers. The standardsoils, such as peat or other highly organic soils; it mayprocedure is to add the proper color symbolsalso show the existence of bedrock too close to therepresenting the various soil types you discover.surface. It aids in planning drainage facilities since these16-6
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
