Boring logs

The site is underlain by a sequence of unconsolidated, stratified sedimentary deposits. The water table occurs at depths of 52 to 71 ft below the ground surface, with occasional perched zones at depths of about 52 to 64 ft below the ground surface. Review of boring logs and well construction details and performance allowed for reevaluation of the subsurface environment. The soils were subsequently characterized based on relative permeability and depositional environment (Figures 12.21 and 12.22) as follows ... 

Engineering data from public or private agencies or firms (especially exploratory boring logs) -Highway/bridge plans or surveys. 

A boring log defines a specific stratum of soil as narrowly graded sand-silt mix with no clay . Estimate the permeability using several different sources. 

A boring log describes a granular stratum as well graded, medium dense, medium sand, little silt . Estimate the permeability. 

Few is known on the early life of Benjamin Prescott, which he had spent at Northampton MA. In 1793 he was one of the founders of an aqueduct company to bring a larger water supply to his city. Water was collected from local springs, carried through bored logs into a reservoir from where it was distributed with small log conduits to the individual residences. 

Identification and classification is usually taught at the very beginning of most Soil Mechanics courses, but it is believed that the subject becomes more relevant before the eyes of the students when they are faced with the real problem of estimating relevant soil properties on the basis of classification and a boring log, which is a common situation in practice. For this approach to be possible, it is essential that students... 

The boring log (Figure 7.16) is one of the most fundamental components of the data documentation. Although many styles of presentation are used, there are several basic elements that generally should be included on a boring log. Those typical components include the following ... 

In addition to the boring logs, the factual data should include tabulated summaries of test types, depths, and results together with the appropriate graphical output of the tests conducted. 

Subsurface cross-sections, or profiles, are commonly used to illustrate the stratigraphic sequence, subsurface strata and their relationships, geologic structure, and other subsurface features across a site. The cross section can range from simple hne drawings to complex illustrations that include boring logs and plotted test data (Figure 7.17). 

Safety Assessment of Piled Buildings in Liquefiable Soils Mathematical Tools, Fig. 9 Boring log of the soil at the building site... 

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