6.6. SR 08-19-2002 - Laserfiche WebLink

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BORING LOG NOTES DRILLING AND SAMPLING SYM~BOLS Symbol Definition AC: B,H,N: BX: CA: CAS: CC: COT: DC: DM: DR: DS: FA: HSA: LG: MC: N (BPF): NQ: PQ: RD: REC: REV: SS: WASH: 94mm: ~'. At completion of boring Size of flush-joint casing BX double tube core barrel Crew Assistant (initials) Pipe casing, number indicates nominal diameter in inches Crew Chief (initials) Clean-out tube Drive casing; number indicates diameter in inches Drilling mud or bentonite slurry Driller (initials) Disturbed sample from auger flights Flight auger; number indicates outside diameter in inches Hand auger; number indicates outside diameter Hollow stem aUger; number indicates inside diameter in inches Field logger (initials) Column used to describe moisture condition of samples and for the groUnd water level symbols Standard penetration resistance (N-value) in blows per foot (see notes) NQ wireline core barrel PQ wire!ine core barrel Rotary drilling With fluid and roller or drag bit In split-spoon (see notes) and thin-walled tube sampling, the recovered length (in inches) of sample. In rock coring, the length of core recovered (expressed as percent of the total core run). Zero indicates no sample recovered· Revert drilling fluid Standard split-spoon sampler (steel; 1¥8" is inside diameter; 2" outside diameter); unless indicated otherwise Thin-walled tube; number indicates inside diameter in inches Sample of material obtained by screening returning rotary drilling fluid or by which has collected inside the borehole after "falling" through drilling fluid Sampler advanced by static weight of drill rod and 140-poUnd hammer Sampler advanced by static weight of drill rod 94 millimeter wireline core barrel Water level directly measured in boring Estimated water level based solely on sample appearance TEST SYMBOLS Symbol Definition CONS: DEN: DST: E: I-IYD: LL: LP: OC: PERM: PL: q~: ch: ch: R: RQD: SA: TRX: VSR: VSU: WC: %-200: One-dimensional consolidation test Dry density, pcf Direct shear test Pressuremeter Modulus, tsf Hydrometer analysis Liquid Limit, % Pressuremeter Limit Pressure, tsf Organic Content, % Coefficient of permeability (K) test; F - Field; L - Laboratory Plastic Limit, % Pocket Penetrometer strength, tsf (approximate) Static cone bearing pressure, tsf Unconfined compressive strength, psf Electrical Resistivity, ohm-cms Rock Quality Designator in percent (aggregate length of core pieces 4" or. more in length as a percent of total core run) Sieve analysis Triaxial compression test Vane shear strength, remoulded (field), psf Vane shear strength, undisturbed (field), psf Water content, as percent of dry we. ight Percent 'of material fmer than #200 sieve STANDARD PENETRATION TEST NOTES The standard penetration test consists of driving the sampler with a 140-pound hammer and counting the number of blows applied in each of three 6" increments of penetration. If the sampler is driven less than 18" (usually in highly resistant material), permitted in ASTM:D1586, the blows for each complete 6" increment and for each partial increment is on the boring log. For partial increments, the number of blows is shown to the nearest 0.1' below the slash. The length of sample recovered, as shown on the "REC' column, may be greater than the distance indicated in the N column. The disparity is because the N-value is recorded below the initial 6" set (unless partial penetration defined in ASTM:D1586 is encoUntered) whereas the length of sample recovered is for the entire sampler drive (which may even extend more than 18"). 01FLD012(02/02) AMERICAN ENGINEERING TESTING, INC.