04/25/96 Agenda & Packet - Laserfiche WebLink

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BORING LOG NOTES • DRILLING AND SAMPLING SYMBOLS TEST SYMBOLS Symbol Definition Symbol Definition B,H,N: Size of flush joint casing CONS: One-dimensional consolidation test BX: BX double tube core barrel DEN: Dry density, pcf. AC: At completion of boring HYD: Hydrometer analysis CA: Crew assistant LL: Liquid limit, % CAS: Pipe casing, number indicates nominal PERM: Coefficient of permeability (K) test; F - Field; diameter in inches L -Laboratory." • CC: Crew chief PL: Plastic limut, COT: Clean-out tube q,: Pocket penetrometer strength, tsf DC: Drive casing; number indicates diameter in q Static cone bearing pressure, tsf DM: Drilling mud or bentonite slurry q : Unconfined compressive strength, psf DS: Disturbed sample from auger flights R Electrical resistivity, ohm-cms FA: Flight auger; number indicates outside RQD: Rock Quality Designator in percent (aggregate diameter in inches length of core pieces 4" or more in length as a HA: Hand auger; number indicates outside diameter percent of total core run) HSA: Hollow-stem auger; number indicates inside SA: Sieve analysis diameter in inches VS: Vane shear strength (field), psf JW: Jetting water WC: Water content, as percent of dry weight MC: Column used to describe moisture condition of -200: Percent of material finer than#200 sieve samples and for the ground water level symbol N (BPF): Standard penetration resistance (N-value) in 110 blows per foot (see notes) MOISTIIRE/FROST CONDITION (MC COLUMN) NQ wireline core barrel PQ: PQ wireiine core barrel D Dry RD: Rotary drilling with fluid and roller or drag bit M Moist REC: In split-spoon(see notes) and thin-walled tube W Wet/Waterbearing sampling, the recovered length(in inches) of F Frozen sample. In rock coring, the length of core recovered (expressed as percent of the total STANDARD PMNETRATION TEST NOTES core run). Zero indicates no sample recovered. REV: Revert drilling fluid The standard penetration test consists of driving the sampler SS: Standard soffit-spoon sampler (steel; 1%" witha 140-poundhammer and counting the number ofbiows is inside diameter; 2" outside diameter); applied in each of three 6" increments of penetration- If the unless indicated otherwise sampler is driven less than 18" (usually in highly resistant TW: Thin-walled tube; number indicates inside material), permitted in ASTM:D1586, the blows for each diameter in inches complete 6" increment and for each partial increment is WASH: Sample of material obtained by screening on the boring log. For partial increments, the number of returning rotary drilling fluid or by blows is shown over a slash (/) and the partial penetration which has collected inside the borehole less than 6" is shown taking a split-spoon sample of after "falling" through drilling fluid material to the nearest inch below the slash. WAT: Water WH: Sampler advanced by static weight of drill The length of sample recovered, as shown on the "REC" rod and 140-pound hammer column, may be greater than the distance indicated in the WR: Sampler advanced by static weight of drill rod N column. The disparity is because the N-value is recorded 94 mm: 94 millimeter wireline core barrel below the initial 6" set (unless partial penetration defined Water level indicated in boring in ASTM:D1586 is encountered)whereas the length of sample recovered is for the entire sampler drive. AMERICAN ENGINEERING TESTING, INC.