2016-00688 - addn/remodel/repair

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RECEIVED JUN 15 2016 ' g 9 - CITY OF ORONO O PART 1: GENERAL 2.02 BOULDERS 3.02 FOUNDATION SOIL PREPARATION a 1.01 DESCRIPTION A. BOULDERS SHALL MEET THE MINIMUM REQUIREMENTS OF BOULDER A. FOUNDATION SOIL SHALL BE EXCAVATED AS REQUIRED FOR MINIMUM o A. WORK INCLUDES FURNISHING AND INSTALLING A BOULDER RETAINING DEPTH SCHEDULE. EMBEDMENT DEPTH SHOWN ON THE CONSTRUCTION DRAWINGS,OR AS c WALL TO THE LINES AND GRADES SHOWN ON THE CONSTRUCTION B. BOULDERS SHALL BE SOUND AND DURABLE, USE FIELDSTONE, GRANITE, DIRECTED BY THE ENGINEER. S DRAWINGS AND SPECIFIED HEREIN. LIMESTONE,OR OTHER TYPES OF NATURAL STONE. B. UNSUITABLE SOILS SHALL BE REMOVED AND REPLACED WITH SUITABLE O B. WORK INCLUDES PREPARING FOUNDATION SOIL, FURNISHING AND 2.03 DRAINAGE AGGREGATE STRUCTURAL FILL TO ACHIEVE THE REQUIRED BEARING CAPACITY. O INSTALLING DRAINAGE STONE AND BACKFILL TO THE LINES AND GRADES A. DRAINAGE AGGREGATE SHALL BE ANGULAR AND SHALL NOT BE RIVER C. STRUCTURAL FILL SHALL BE COMPACTED IN 6"LIFTS TO A MINIMUM 95% SHOWN ON THE CONSTRUCTION DRAWINGS. STANDARD PROCTOR DENSITY(ASTM D698). �, ROCK OR PEA GRAVEL Oz C. WORK INCLUDES FURNISHING AND INSTALLING ALL RELATED MATERIALS B. DRAINAGE AGGREGATE SHALL CONSIST OF CLEAN 1" CRUSHED STONE 3.03 BASE COURSE PLACEMENT �, REQUIRED FOR CONSTRUCTION OF THE RETAINING WALL AS SHOWN ONMEETING THE FOLLOWING GRADATION: A. PLACE GEOTEXTILE FABRIC AND SET THE FIRST COURSE OF BOULDER IN THE CONSTRUCTION SHOP DRAWINGS. 1.02 REFERENCE STANDARDS SIEVE SIZE %PASSING PLACE ON TOP OF GEOTEXTILE FABRIC. 1" 100 B. TRY TO POSITION BOULDERS WITH THE SMOOTHEST SIDE UP SO THE A. ASTM C1372 SEGMENTAL RETAINING WALL UNITS. NEXT COURSE HAS GOOD SURFACE CONTACT. B. ASTM C140 SAMPLING AND TESTING CONCRETE MASONRY UNITS. 3/4" 100.75 C. DURING PLACEMENT OF BASE BOULDERS,MAKE ENDS FIT AS TIGHTLY AS a C. ASTM D448 SIZES OF AGGREGATE FOR ROAD AND BRIDGE N0.4 0-10 POSSIBLE TO EACH OTHER. NO.50 0.5 D. IF BOULDERS ARE NOT TIGHT AGAINST THE EXCAVATED CUT, PULL o CONSTRUCTION. C. FREE DRAINING SAND IS ALSO ACCEPTABLE FOR THE DRAINAGE D. ASTM D698 LABORATORY COMPACTION CHARACTERISTICS USING MATERIAL IT MUST HAVE <5%FINES PASSING THE NO. 200 SIEVE.ONSITE FABRIC FORWARD AND BACKFILL BEHIND BOULDER STANDARD EFFORT. MATERIAL IS ACCEPTABLE IF IT MEETS THIS CRITERIA. E. BACKFILL SOIL AGAINST THE BACK OF THE FIRST COURSE AND COMPACT 1.03 QUALITY ASSURANCE 2.04 RETAINED BACKFILL THOROUGHLY. BACKFILL UP TO THE HEIGHT OF THE BASE COURSE TO A. OWNER WILL BE RESPONSIBLE FOR SOIL TESTING AND INSPECTION PROVIDE A LEVEL SURFACE FOR THE SECOND COURSE OF BOULDERS. o QUALITY CONTROL DURING EARTHWORK OPERATIONS. A. RETAINED BACKFILL SHALL BE FREE OF DEBRIS OR ORGANIC MATERIAL 3.04 SUBSEQUENT COURSE PLACEMENT MEETING THE FOLLOWING GRADATION: 1.04 DESIGN SAFETY FACTORS SIEVE SIZE %PASSING A. THE SECOND AND SUBSEQUENT COURSES SHOULD BE SET BACK INTO THE C A. THE BOULDER WALLS ARE DESIGNED AS GRAVITY WALLS: 2" 100 HILL TO PROVIDE STRENGTH FOR THE WALL. U 3/4" 100.75 B. PLACE BOULDERS ON TOP OF THE BASE COURSE SO THAT SEAMS IN THE MINIMUM SAFETY FACTOR FOR OVERTURNING 1.5 NO.4 20.100 SECOND COURSE DO NOT MATCH SEAMS OF THE FIRST COURSE.IF SEAMS ("3. MINIMUM SAFETY FACTOR FOR SLIDING 1.5 NO.200 0-60 MATCH,IT WILL CREATE A WEAK SPOT IN THE WALL Ln MINIMUM SAFETY FACTOR FOR BEARING 2.0 PLASTICITY INDEX(PI)<20 C. SELECT EACH BOULDER TO FIT AS TIGHTLY AS POSSIBLE WITH THE LIQUID LIMITS(LL)<40 S PART 2: MATERIALS ADJACENT BOULDERS. ROTATE BOULDERS UNTIL A GOOD FIT IS B. THE MAXIMUM AGGREGATE SIZE SHALL BE LIMITED TO 2"UNLESS FIELD ACHIEVED. THE WALL WILL BE STRONGER WITH MORE SURFACE AREA W 2.01 DEFINITIONS TESTS HAVE BEEN PERFORMED TO EVALUATE POTENTIAL STRENGTH CONTACT BETWEEN BOULDERS DUE TO THE FRICTION THAT IS CREATED. En A. BOULDERS-SOUND,DURABLE ROCK FRAGMENT SHAPED BY EROSION AND REDUCTION TO INSTALLATION. 3.06 FILL PLACEMENT TRANSPORTED BY ICE OR WATER FROM ITS ORIGINAL POSITION. C. MATERIAL CAN BE SITE EXCAVATED MATERIAL WHEN THE ABOVE 02 B. DRAINAGE AGGREGATE - FREE DRAINING CRUSHED STONE WHICH IS REQUIREMENTS ARE MET. UNSUITABLE SOILS FOR BACKFILL (HIGH A. BACKFILL MATERIAL SHALL BE PLACED WITH A MAXIMUM OF 8"LIFTS AND zCOMPACTED TO 95%OF STANDARD PROCTOR DENSITY.AS DETERMINED �, PLACED WITHIN AND IMMEDIATELY BEHIND THE BOULDER FACING. PLASTIC CLAYSOR ORGANIC MATERIALS) SHALL NOT BE USED IN THE IN ACCORDANCE WITH ASTM D698. THE IN PLACE MOISTURE CONTENT N C. FOUNDATION SOIL - SOIL ZONE IMMEDIATELY BENEATH THE BOTTOM REINFORCED SOIL MASS. SHALL NOT EXCEED THE OPTIMUM MOISTURE CONTENT AS DETERMINED z0 BASE BOULDERS. D. CONTRACTOR SHALL SUBMIT REINFORCED FILL SAMPLE AND TEST IN ACCORDANCE WITH ASTM D698 AND BE NO LOWER THAN 2%BELOW .. D. RETAINED BACKFILL - SOIL IMMEDIATELY BEHIND THE DRAINAGE RESULTS TO THE ARCHITECT/ENGINEER FOR APPROVAL PRIOR TO OPTIMUM MOISTURE CONTENT. o AGGREGATE. CONSTRUCTION. B. DO NOT BRING HEAVY COMPACTION OR PAVING EQUIPMENT WITHIN 3 cn E. SUBSURFACE DRAINAGE SYSTEM-A SYSTEM FOR REMOVING WATER FROM PART 3: EXECUTION FEET OF THE BACK OF THE PROPOSED RETAINING WALL ONLY BEHIND THE WALL AND CHANNELING IT TO A POINT OF POSITIVE 3.01 EXCAVATION HAND OPERATED COMPACTION EQUIPMENT (E.G. TAMPER, PLATE DRAINAGE. A. CONTRACTOR SHALL EXCAVATE TO THE LINES AND GRADES SHOWN ON COMPACTOR, SHEEPS FOOT ROLLER) SHALL BE USED WITHIN 3 FEET OF O THE BACK OF WALL THE CONSTRUCTION DRAWINGS.CONTRACTOR SHALL BE CAREFUL NOT TO DISTURB EMBANKMENT AND FOUNDATION MATERIALS BEYOND LINES a SHOWN. z 0 0 o - J Z 0 m 0 N O .12 z 070/4—004o $ 0 0 r 1 PDeeigne.JBy: Polka: Regkmtlon Na I hereby cern that this pl ification,or report was prepared by No. Date Revision av p 25493 me or under y dire t.. . "ion and that I am a duly Licensed 1130 OLD CRYSTAL BAY ROAD laws of the State of Minnesota. $ 1 ORONO,MINNESOTA Professional ngi (21'vILDESIGN 2 i`boso9 r §: CpV N.T.S. PROFESSIONALS 3 — TISk: — it seasLYN°^�^`�"eSo"n'atn„e:0aBLOOMINGTON,M °s.m s SPECIFICATIONS Sheer /1O/I PHONE.1952))035)1IIPAX.imnSPt•+995I WEIIWTP.VWw.CDRUS.COM JUN 13,2016 - 3.00"1/4 ace: 112)1",vnon,w1rONAMMeMIA annum,na»IIw»4,,u `6 ! ! MICHAEL R.�HN"�N,P.E.