Laserfiche WebLink
north-south. In project documents, the J1 joint set typically strikes east-west and the J2 joint <br /> set typically strikes north-south. Both sets are similar in spacing, roughness, and condition. <br /> The joint sets are closely spaced (SP5: 0.1 to 0.3 ft) to very widely spaced (SP2: 3 to 10 ft). <br /> Joint surfaces are planar and are stepped (R1) to moderately rough (R4). The joint sets are <br /> less continuous than the foliation joints and are mostly discontinuous (C1: less than 3 ft <br /> lengths) to slightly continuous (C2: 3 to 10 ft). Iron staining is observed on many joint <br /> surfaces, with less staining typically observed at lower elevations. Most joints generally do <br /> not contain infill material. <br /> Figure 2-1 shows stereonet projections for discontinuities at the South Quarry and the West <br /> Quarry. <br /> 51 <br /> `\.vi G.W�Y•I� <br /> I�• �4 �ahco;w_ nw /_ <br /> 5 <br /> '•u � f F 1 ��e <br /> Figure 2-1. Stereonet plots showing poles to planes with average joint set <br /> windows for the South Quarry (upper) and West Quarry (lower). <br /> 9 <br /> Aggregate Industries—Morrison Quarry GEI Consultants, Inc. <br /> AM-07 Geotechnical Stability Exhibit November 2020 <br />