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REFERENCE:Pace Engineering,Harbor's Edge,Grading and Drainage Plan, <br /> dated May 10,2022 <br /> DESIGN NOTES: Fence <br /> (By Others) Fence (n <br /> The following design assumptions were used: (By Others) a) <br /> Internal angle of friction for reinforced soil=32 degrees(design only-see Materials 5'Min.setback s'Min.setback O <br /> Note"F") <br /> Unit weight of reinforced soil=125 pcf - - z <br /> A L <br /> Maximum wall height=15.00 feet o70 <br /> Batter of wall=1 H:10V <br /> � Retained � <br /> TECHNICAL SPECIFICATIONS FOR MECHANICALLY STABILIZED LOCK&LOAD — Soil W O <br /> RETAINING WALLS Exposed Wall Height y--r <br /> Retained H=5.33'(Max.) o Reinforced <br /> GENERAL: Soil Soil L C <br /> W <br /> A. The work involves the supply and installation of soil reinforced retaining walls.The o, Geogrid Layer4 -� <br /> Concrete Panels and Counterforts will consist of Lock&Load Stone.Counterfort and Finish Grade ° soo.° Q M <br /> Geogrid are the types of soil reinforcement.The work will include,but is not limited at Wall Face 12(Min.) 18"of Well Drainage Blanket a/ <br /> to: Reinforced Compacted a o° (As Necessary per > <br /> A-1 excavation to the grades shown on the civil drawings 3/4"Clean Crushed Rock Geotechnical Engineer) O <br /> A-2 supply and in <br /> stallation of geogrid reinforcement <br /> 10 $O1l ICI °os°`o' - °ag'eayoo<o °o <br /> A-3 supply and installation of drainage fill and piping III '`�'g&•Y °` N <br /> A4 Supply and installation of Segmental Lock&Load Stones Exposed Wall Height Geo rid La er 3 = __ 4'r 4"Perforated Drainpipe°•° NOTE:Geotechnical Engineer shall L <br /> A-5 supply and installation of retained and reinforced Soil fill H=15'(Max.) °�'��'�������������������� �� — Surround with 1 cf of evaluate the need for Supplementary Q <br /> 2"-4"Crashed Rock + III—III=III Washed Rock per lineal foot Drainage behind the Reinforcement M <br /> B. The walls shall be installed on undisturbed Native Soils or Structural Fill,as Leveling Course III— = of Pipe zone during Construction. J w <br /> appropriate. ,�t <br /> NOTE:Wall Toe cover shall be 12"(Min.) W <br /> MATERIALS " °° Mimgrid 8XT for Sloping Condition in Front of Wall _�e <br /> A. Concrete Panels and Counterforts are locked together to form a"Stone".The Geogrid Layer z Retained C)9 '=0oeadaeaa�ee�ee�e�ee�ee�ea�ee <br /> retaining walls Stone areve to epurc ed on purchased <br /> m basis of dLock Loadad Retaining WallSoil MECHANICALLY STABILIZED EARTH (MSE) J <br /> "Stones".Stones are to be purchased from a licensed Lock&Load manufacturer. a=�^ <br /> The Lock&Load trademark on each pallet identifies Lock&Load products. GRAVITY LOCK & LOAD <br /> 2.67'(Typ.) Reinforced e^°= <br /> B. Information on the purchase of Lock&Load products can be obtained through: Soil <br /> li WALL DETAIL (5.33 MAX. HEIGHT) <br /> Pacific Lock+Load,Inc. Geo=rid ye 1 — <br /> Tel.(503)682-2868 �a aaaaaa��� — NOT-TO-SCALE <br /> Website:www.pacificlocknioad.com Finish Grade L=H g Drainage Blanket <br /> at Wall Face 12(Min.) 18"of Well e e (As Necessary per <br /> Compacted eoQ Geotechnical Engineer) NOTES <br /> C. Drainage Fill-Drainage Fill placed around and above the perforated drainage pipe °° °dean Crushed Rock <br /> shall consist of round or angular 3/4 inch to 1 inch"clean"rock. �s° oa°ao: o sa>• a°,a: <br /> NOTE:Geotechnical Engineer shall <br /> D. Face Gravel-3/4 inch clean crushed rock or approved equivalent by the Geotechnical t° °e`Y evaluate the need for Supplementary <br /> ' •;.;%•9r.) 4"Perforated Drainpipe° ° <br /> Engineer. Drainage behind the Reinforcement 1. Wall alignment and heights to be established by contractor/ surveyor. <br /> L—h III III Surround with 1 of of Zone during Construction. <br /> • <br /> 2"-4"Crushed Rock III— = Washed Rock per lineal foot <br /> E. Reinforced and Retained Backfill-Suitable granular material approved by the Leveling Course — of Pipe <br /> Geotechnical Engineer.Fines shall not exceed 25 percent. <br /> F. Leveling Pad-The Leveling Pad shall consist of angular,crushed aggregate with NOTSlopin Toe cevionin l be ontof Min.) 2. Geotechnical Engineer to confirm Keyway stability, support characteristics, • <br /> maximum size of 3/4 inch.The Leveling Pad Fill may be single size or may be well for Sloping Condition in Front of Wall <br /> graded containing a maximum of5%passing the#200 sieve. <br /> and overall global stability prior to construction. <br /> EXECUTION MECHANICALLY STABILIZED EARTH (MSE) <br /> A. Contractor shall excavate to the lines and grades shown on the construction drawings. LOCK & LOAD WALL DETAIL (15- MAX. TOTAL HEIGHT) 3. Toe embedment soil must be placed during, or immediately following <br /> The Geotechnical Engineer should observe the excavation prior to the placement of wall construction. <br /> the leveling material or fill soils. NOT-TO-SCALE <br /> B. Over-excavation of deleterious soils or rock shall be replaced with material meeting <br /> the specifications described in the section"Material F"above and compacted to 95 <br /> of ASTM D1557(Modified Proctor)within 2%of optimum moisture content of the soil. i 27" <br /> C. The first course of concrete Lock&Load Stones shall be placed on the Leveling Pad Y <br /> and the alignment and level checked. z <br /> 0 m 22" �. <br /> D. Stones shall be placed with the top of the panel level and parallel to the wall face. <br /> The Counterfort Base shall be installed horizontal and perpendicular to the face of the 3.75" <br /> retaining wall. TOP VIEW <br /> Fence <br /> E. Geogrid shall be oriented with the highest strength axis perpendicular to the wall (By others) <br /> alignment. SIDE VIEW 16" <br /> F. Geogrid reinforcement shall be laced at the levels and to the lengths shown on the _ 5'Min.Setback <br /> 9 P 9 Z 7s5^ _ <br /> drawings beginning at the back of the Lock&Load Panels. - O - --- <br /> 4, U <br /> m <br /> G. The geogrid shall be laid horizontally in the direction perpendicular to the face of the <br /> retaining wall.The geogrid shall be pulled taut,free of wrinkles,and anchored prior to i II-I _ <br /> backfill placement on the geogrid. Reinforced r v ry 32 <br /> 10 soil Outline of <br /> H. The geogrid reinforcement shall be continuous throughout respective embedment lengths. °u FRONT VIE W <br /> Spliced connection between shorter pieces of geogrid is not permitted. Miragrid 5XT 90o Connecting Loop <br /> Geo-rid Layer Retained 80 ° <br /> I. The drainage pipe discharge points shall be connected to approved discharge. Soil .q1 <br /> J. Reinforced and Retained Backfill shall be laced,spread,and compacted in such a Exposed Wall Height aa; go 16" <br /> P P P Hs 2�04" <br /> manner that minimizes the development of slack in the geogrid. 2.87'(Typ.) Reinforced <br /> Soil ;a III <br /> K. Reinforced and Retained Backfill shall be placed and compacted in lifts not to ° REINFORCEMENT BAR 6.75" <br /> exceed 8 inches where hand compaction equipment is used and not more than 12 inches °e III BENDING DETAIL <br /> where heavy compaction equipment is used.FIRST-compact over tail of Counterfort, Geogrid Layer 1 = s.75" <br /> then away from the retaining wall structure.Hand operated vibratory plate compaction Finish Grade L=H s <br /> equipment(700 lb.to 1,000 lb.)shall be used to compact face gravel at wall face. at wall Face 12(Min.) 18"of Well °° Drainage Blanket TOP VIEW <br /> p <br /> ( <br /> Compacted o,o <br /> ° � As Necessary per <br /> L. Reinforced and Retained Backfill shall be compacted to 95%of the maximum density -- 3/4'Clean Crushed Rock Geotechnical sneer°.Gtechnical En <br /> o�o8°a°v; - ,Boo ogo a 9 ) Connecting <br /> as determined by ASTM D1557(Modified Proctor)or equivalent.The moisture Loop <br /> Loop <br /> content of the backfill material prior to and during compaction shall be uniformly ,°.° 8° °° Poly Fiber Reinforced a s <br /> distributed throughout each layer and shall be within 2 percentage points of the 4"Perforated Drainpipe NOTE:Geotechnical Engineer shall 1 1/2"fiber(4 lbs./yard) o <br /> P — — "� Sumoundwithldof evaluate the need for Supplementary 6,000 psi concrete o <br /> optimum moisture content. PP ry P <br /> 2"-4"Crushed Rock III= Washed Rock per lineal foot Drainage behind the Reinforcement Casting Tolerance SIDE VIEW <br /> M. Hand-operated compaction equipment(700 lb.to 1,000 lb.)shall be used within <br /> Leveling Course — of Pipe Zone during Construction. o 0 N <br /> 26 inches of the front face of the concrete facing. NOTES: <br /> NOTE:Wall Toe cover shall be 12"(Min.) PICTORIAL VIEW 1.6 <br /> N. Tracked construction equipment shall not be operated directly upon the geogrid for Sloping Condition in Front of wall 1. Installation to be completed in accordance with manufacturer's <br /> reinforcement.A minimum fill thickness of 6 inches is required prior to operation of specifications. m <br /> tracked vehicles over the geogrid. NOTES: �A <br /> 2. Do not scale from drawings. (t. Mp <br /> 9 MECHANICALLY STABILIZED EARTH (MSE) 1. Installation to be completedinaccordancewithmanufacturer's �OF WAS 9;,r <br /> O. Rubber tired equipment may pass over the geogrid reinforcement at slow speeds w�CC a o o <br /> less than5mph.Suddenbrakingandsharpturningshallbeavoided. LOCK & LOAD WALL DETAIL (10- MAX. TOTAL HEIGHT) specifications. LOCK & LOAD PANEL '`!` _ �_` <br /> Sheet No. <br /> P. At the end of each day of operation,the contractor shall slope the last lift of 2. Do not scale from drawings.reinforced backfill awayfrom the wall units to direct runoff away from the wall face. NOT-TO-SCALE 9 �, <br /> Y NOT-TO-SCALE <br /> The contractor shall not allow surface runoff from adjacent areas to enter the wall � 27674 <br /> construction site. LOCK & LOAD COUNTERFORT ° a LK1 <br /> �' fGISTER�� \a <br /> ass/ONAI�NG <br /> NOT-TO-SCALE 08/10/2222 <br />