5900 36TH AVE W 2025-01-06 - Laserfiche WebLink

NOTES: E. Only lightweight hand-operated equipemnt shall be allowed within 3 feet of the back of the rockery. Rockery construction shall be performed in accordance with the Associated Rockery Note:Fence Support and Guardrail Contractor Guidelines. F. Tracked construction equipment shall not be operated directly upon the geogrid Posts located in close proximity to backs of Rockery shall be entirely Traffic or 2H:1V Slope Surcharge, reinforcement.A minimum fill thickness e 6 inches is required prior to operation of embedded in Filter Drain Rock As Applicable Rockery construction is a craft. The skill and experience of the builder will largely dictate tracked vehicles over the geogrid.Tracked vehicle turning should be kept to a minimum / the success of the construction. to prevent tracks from displacing the fill and damaging the geogrid. (Quarry spans). \- / W y � _ A rockery is a protective system with respect to the weathering and erosion process G. Rubber tired equipment ma ass over geogrid reinforcement at slows speed,less than REINFORCEMENT SCHEDULE O > ry P Y P 9 PYP 9 9 P -i' j- o>,;°o..*. on an exposed soil face. 10 MPH.Sudden braking and sharp turning shall be avoided. o.o A o vo Wall Height(feet) Length of Reinforcing(feet)* b 4.,�= Z i a:e°o ohm 18'of 2"to 4" Z Maximum inclination of the slopes above and in front of rockeries should be 2:1(horizontal: H. At the end of each days operation,the Contractor shall slope the last lift of reinforced H LR 1 _ _ •o° Filter Drain Rock Upper One-Third vertical). backfill away from the rockery to direct runoff away from wall face.The Contractor 2 Men Rock o a obo Extend along entire height shall not allow surface runoff from adjacent areas to enter the wall construction site. 4.0 4.0 6 °•o °o°o. III of Rockery (� O Minimum thickness of rock filter layer =18 inches. -;-y' o o•••p. U N � NATIVE CUT ROCKERY 6.0 6.0 c?Rockeries greater greater than 6 feet in height should be installed under the observation of the 8.0 8.0 ` b•a oa°o°° —III Geotechnical Engineer. A. The Geotechnical Engineer shall observe cuts for the rockery.Additional flattening , °°0.°• °q III Very Dense Till Z (Max.1 of cuts may be recommended by the Geotechnical Engineer depending on the soil 10.0 10.0 H'Heigh[) Middle one-Thi d ^ s°o°:d°°o (Engineer to Verify) U) The long dimension of the rocks should extend back towards the cut or fill face to provide and groundwater conditions observed.Where Native Cuts do not expose competent 12.0 12.0 3 a4Men Rock o•°�o°•q•o. Native Cut Q 0 maximum stability. Native Soils,additional excavation and the addition of reinforcement and Compacted °° Structural Fill may be necessary. 14.0 14.0 a Rocks should be placed to avoid continuous joint planes in vertical or lateral directions. 16.0 16.0 \\; 0.o..°•0•°0°°III L_ Ill O 0o=o.;d Each rock should bear on two or more rocks below it,with good flat-to-flat contact. FIELD QUALITY CONTROL i - °q•o.—_ N Lo—One-Thin k, U Q L d Rock designations and approximate weights are provided below. A. The rockery construction shall be observed by the Geotechncial Engineer on a periodic or *Geogrid Miragrid 7XT 5 Man Rock \ --�' ;pop opo= full-time basis as appropriate.Testing of the compacted backfill shall be performed by For Fill Rockeries,it is imperative that Structural Fill compaction extend all the way to the the Geotechnical Engineer. ••�A.° IIII=III a°g back of the Rockery and Filter Drain Rock Zone.Reduced lift thickness and light compaction equipment may be required to fully achieve the required compaction. B. Quality assurance shall include foundation soil inspection,soil and backfill testing, III III 12"min. verification of design parameters and observation of construction for general compliance with design drawings and specifications. 4"Dia.Rigid Perforated PVC Drain Pipe Approximate Approximate Size Weight Diameter NOTE: Geotechnical Inspections Shall be 9 Rockeries greater than 10 feet require NATIVE CUT ROCKERY additional consideration with respect to 1 Man 50-200 12"-18" DETAIL location,proximity to structures,adjacent 2 Man 200-700 18"-28" properties and right-of-ways.Tiered 3 Man 700-2000 28"-36" Required per IBC Ta b I e1705.6 configurations may be recommended. 4 Man 2000-4000 36 -48' Supplement recommendations shall be 5 Man 4000-6000 48"-54" NOT-TO-SCALE provided by the Geotechnical Engineer, 6 Man 6000-8000 54"-60" as appropriate. • LOCK & LOAD WALL • AT VAULT #3 GEOGRID SOIL REINFORCEMENT Elev.±345' NOTE:Fence Support Posts located A. Geosynthetic reinforcement shall consist of geogrids manufactured specifically for soil ---- -••- in close proximity to back of rockery 18"of 2"to 4" Traffic or 2H:IV Slope Surcharge, reinforcement applications and shall be manufactured from high tenacity polyester am shall be entirely embedded Filter Drain Rock As Applicable pp 9 Y P Y Y in she Drain Rock(Quarry Spalls). Extend along entire height or high density polyethylene.Polyester geogrid shall be knitted from high tenacity Guardrail Supports shall be evaluated of Rockery polyester filament yarn with a molecular weight exceeding 25,000 Meg/m and a carboxyl separately. 1 end group values less than 300.Polyester geogrid shall be coated with an impregnated ._ —5/8ths Minus yy PVC coating that resists peeling,cracking and stripping. A B. Geogrid shall be Miragrid 7XT for rockeries 16'or less. 9J o4 aA C. ManufacturingQuality Control: Y Double Counterfort The geogrid manufacturer shall have a manufacturing quality control program that Lock&Load Wall t19� ___-_ 1 _r eo ro° Vault up2 Mono-k �� \ 1r includes QC testing by an independent laboratory. \Geogrid 2Man Rock 0.•.0.•� The QC testing shall include: ""-" -' zoxr 6 1 e9•°°° aeix,fod ...Tensile Strength Testing _ ?, i ,0 0°pg° Ls 2 Fill . ...Melt Flow Index(HDPE) ...Molecular Weight(Polyester) _._ _ __, - • °.•o.o• -- .eo STRUCTURAL FILL 326.37 -------------- (Max.16'Height) �� `� Qao°=e°0°°o,° 2' Structural III— 9 it Men Rock •� ° F711 A. Structural Fill shall consist of granular well graded material with a fines content of less —11 I— 0• than 25 percent(percent passing the#200 sieve based on the minus three-quarters 111— e�°°•4 inch fraction).Some rockery applications may require the use of"select"free draining SECTION A-A' l o°.°° e°o°°o,• 2' Reinforced Structural Fill Material.Structural Fill Material shall be approved and tested by the �o e Q o o Fill Geotechncial Engineer. 0 2.5 5 10 LtrperoneTnid A, _ SMen Rock __\i' \\�-7� .tr oa opo _ STRUCTURAL GEOGRID INSTALLATION 1_5 Scale in Feet o e 2' = i .`gip° A. Geogrid shall be oriented with the highest strength axis perpendicular to the rockery = =III �- - • _ alignment. 1z"min. <\ T \ v " E E B. Geo rid Reinforcement shall be laced at the strengths,lengths and elevations shown on - - - III III—III H s P s s III— 1�\III III III _ the construction design drawings or as directed by the Engineer. \ ' a � U C. The geogrid shall be laid horizontally on compacted backfill and extend to the back of -- 4"Dia.Rigid Pe rate N so PVC Drain Pie Native Cut the rockery.The geogrid shall be pulled taut,and anchored prior to backfill placement _ ��- -- P on the geogrid. m [V *Rockeries greater than 12 feet require ❑ D. Geogrid Reinforcements shall 10 continuous throughout their embedment lengths and �- --A, ENGINEERED additional consideration with respect to placed side-by-side to provide 100%coverage at each level.Spliced connections -- _ ',g45,4G' location,proximity to structures,adjacent between shorter pieces of geogrid or gaps between adjacent pieces of geogrids are not Tw aas.as' - BW=32��7 properties and right-of-ways.Tiered permitted. BW=346.46_ - - ,,-345.46; FILL ROCKERY DETAIL configurations may be recommended. BUJ=345.46 Supplement recommendations shall be xo NOT-TO-SCALE provided r the Geotechnical Engineer, REINFORCED BACKFILL PLACEMENT n _ as appropriate. xy � A. Reinforced Backfill shall be placed,spread and compacted in such a manner that \ minimizes the development of slack in the geogrid and installation damage. B. Reinforced Backfill shall be placed and compacted in lifts not to exceed 6 inches where m hand compaction is used,or 8-10 inches where heavy compaction equipment is used. Fault� Lift thickness shall be decreased to achieve the required density as required. \�Or10 A COG, o d -Ar- E.0 S , a` ❑ ❑ v C. Reinforced Backfill shall be compacted to 95%of the maximum density as determined �Q 9 byASTM D-1557-91.The moisture content of the backfill material prior to and during ° ° J0 y Ln Sheet No. compaction shall be at or near the optimum moisture content. WALL 4A D. The required compaction shall extend all the way to the back of the Rockery and Filter 0 10 20 40 xFs/�P7E CI018 Drain Rock Zone. 1"=20, ane NAL V 2 06/27/2022