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BORING LOG NOTES <br /> DRILLING AND SAMPLING SYMBOLS TEST SYMBOLS <br /> Symbol Definition Symbol Definition <br /> B,H,N: Size of flush joint casing CONS: One-dimensional consolidation test <br /> BX: BX double tube core barrel DEN: Dry density, pcf <br /> AC: At completion of boring HYD: Hydrometer analysis <br /> CA: Crew assistant LL: Liquid limit, % <br /> CAS: Pipe casing, number indicates nominal PERM: Coefficient of permeability (K) test; F -Field; <br /> diameter in inches L -Laboratory <br /> CC: Crew chief PL: Plastic limit, % <br /> COT: Clean-out tube q,: Pocket penetrometer strength, tsf <br /> DC: Drive casing; number indicates diameter in q : Static cone bearing pressure, tsf <br /> DM: Drilling mud or bentonite slurry q : Unconfined compressive strength, psf <br /> DS: Disturbed sample from auger flights R: Electrical resistivity, ohm-cms <br /> FA: Flight auger; number indicates outside RQD: Rock Quality Designator in percent (aggregate <br /> diameter in inches length of core pieces 4" or more in length as a <br /> HA: Hand auger; number indicates outside diameter percent of total core run) <br /> HSA: Hollow-stem auger; number indicates inside SA: Sieve analysis <br /> diameter in inches VS: Vane shear strength(field), psf <br /> JW: Jetting water WC: Water content, as percent of dry weight <br /> MC: Column used to describe moisture condition of -200: Percent of material finer than#200 sieve <br /> samples and for the ground water level symbol <br /> N (BPF): Standard penetration resistance (N-value) in <br /> blows per foot (see notes) MOISTURE/FROST CONDITION (MC COLUMN) <br /> NQ: NQ wireline core barrel <br /> PQ: PQ wireline core barrel D Dry <br /> RD: Rotary drilling with fluid and roller or drag bit M Moist <br /> REC: In split-spoon(see notes) and thin-walled tube W Wet/Waterbearing <br /> sampling, the recovered length(in inches) of F Frozen <br /> sample. In rock coring, the length of core <br /> recovered (expressed as percent of the total STANDARD PENETRATION TEST NOTES <br /> core run). Zero indicates no sample recovered. <br /> REV: Revert drilling fluid The standard penetration test consists of driving the sampler <br /> SS: Standard split-spoon sampler (steel; 13/a" with a 140-pound hammer and counting the number of blows <br /> is inside diameter; 2" outside diameter); applied in each of three 6" increments of penetration. If the <br /> unless indicated otherwise sampler is driven less than 18" (usually in highly resistant <br /> TW: Thin-walled tube; number indicates inside material), permitted in ASTM:D1586, the blows for each <br /> diameter in inches complete 6" increment and for each partial increment is <br /> WASH: Sample of material obtained by screening on the boring log. For partial increments, the number of <br /> returning rotary drilling fluid or by blows is shown over a slash (/) and the partial penetration <br /> which has collected inside the borehole less than 6" is shown taking a split-spoon sample of <br /> after "falling" through drilling fluid material to the nearest inch below the slash. <br /> WAT: Water <br /> WH: Sampler advanced by static weight of drill The length of sample recovered, as shown on the "REC" <br /> rod and 140-pound hammer column, may be greater than the distance indicated in the <br /> WR: Sampler advanced by static weight of drill rod N column. The disparity is because the N-value is recorded <br /> 94 mm: 94 millimeter wireline core barrel below the initial 6" set (unless partial penetration defined <br /> • Water level indicated in boring in ASTM:D1586 is encountered)whereas the length of sample <br /> recovered is for the entire sampler drive. <br /> AMERICAN ENGINEERING TESTING, INC. <br />