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HomeMy WebLinkAboutSDP202100009 Plan - Revision 2021-05-18 (2)DRAWING INDEX Sheet 1 Site Plan 2 General Notes/ Design Parameters 3 Details 4 Enlarged Site Plan - Wall A 5 Wall A - Sta. 0 to Sta. 202.5 E SITE PLAN W N 42" Tall Safety Handrail or Fence w/ Sleeve -It SW Fence -Post Anchoring System Lap Unit Secure to Top Uni\ w/ Concrete Adhesive E Anchor Diamond Pro Units Drainage Aggregate Min 12" Thick VDOT No. 57 Stone Non -Woven Filter Fabric Mirafi 140N or Equivalent 6eogrid Reinforcement (Typical) Refer to Wall Profile for Geogrid Type, Geogrid Length (GL) and Location y-24" Vertical Spacing (TYp.) Retained Soil Reinforced Fill 4" Dia. Drain Pipe Granular or Low Plasticity Soil (See Drain Detail) Compact To Min 95% Standard Stone Leveling Pad J GL Proctor Density VDOT No. 21A Stone 6" Min x 24" Wide See Wall Profile WALL A TYPICAL RETAINING WALL CROSS SECTION (Not to Scale) EL 12-1/2" i 12" 0 0 Straight _ Rear Lip Split Face 18" 1" Setback 8„ $„ a-1/2" i Scale: 1" = 60 FT ANCHOR DIAMOND PRO UNIT 0 30 60 (Not to Scale) Anchor Diamond Pro Segmental Retaining Wall 999 Rio Road Albemarle County, Virginia Site Plan Adapted From the Grading Plan, Sheet No. C7, Dated May 26, 2020 (Rev. 4 - 4/21/21), Prepared By 5himp Engineering, P.C. Site Plan For Illustrative Purpose. Approx. Scale: 1" = 60 FT Weephole w/Wall Drain Pro Daylight Pipe Through Wall 40' OC Spacing (Typ.) Compacted Bockf ill VIC14111fi R. No. 011245 �a 5�i3�21 �fS�ONAI EJ Cire( Geotechnical Engineering, P.C. I 5956 Buckland Mill Road Roanoke, Virginia 24019 Phone:(540) 366-2379 Project No. I RW-2582 NOTES: DESIGN PARAMETERS: 1.0 STRIP VEGETATIVE AND ORGANIC SOIL FROM THE WALL 14.0 REINFORCED FILL SHALL CONSIST OF GRANULAR SOIL FILL 1 BUILDING CODES: 2015 VIRGINIA UNIFORM STATEWIDE BUILDING CODE (USBC) AND GEOGRID ALIGNMENT. WITH U5C5 SOIL TYPES GP, &W, GM, &C, 5W, SP, SM OR 5C AND 2015 INTERNATIONAL BUILDING CODE (IBC). 2.0 BENCH CUT ALL EXCAVATED SLOPES. WITH A MINIMUM ANGLE OF INTERNAL FRICTION, OF 28 DEGREES 2 THE WALL PROFILE IS BASED ON THE GRADING PLAN, SHEET NO. C7, 3.0 DO NOT EXCAVATE BEYOND EXCAVATION LINES SHOWN AS OUTLINED IN DESIGN PARAMETERS - NOTE 5. DATED MAY 26, 2020 (REV. 4 - 4/21/21), PREPARED BY 5HIMP ENGINEERING, P.C. ON PLAN UNLESS DIRECTED BY THE GEOTECHNICAL MAXIMUM PARTICLE SHALL BE LIMITED TO 4INCHES IN DIAMETER. 3 WALL DETAILS SHOWN ON THIS PLAN ARE FOR ANCHOR DIAMOND PRO ENGINEER TO REMOVE UNSUITABLE SOIL. THE FINE FRACTION (MINUS NO. 40 SIEVE) SHALL HAVE A MAXIMUM SEGMENTAL RETAINING WALL (SRW) UNITS MEETING THE NATIONAL 4.0 CONTRACTOR SHALL ENSURE TEMPORARY EXCAVATIONS ARE STABLE LIQUID LIMIT (LL) OF 40 AND A MAXIMUM PLASTICITY INDEX (PI) CONCRETE MASONRY ASSOCIATION (NCMA) CRITERIA FOR SRW WALL SYSTEMS. AND PROVIDE EXCAVATION SUPPORT IF NEEDED. OF 20. THE BACKFILL SHALL BE FREE OF DEBRIS AND ORGANIC MATTER. 4 ENGINEERING ANALYSIS BASED ON USE OF STRATAGRID 56200 GEOGRIDS. 5.0 GEOTECHNICAL ENGINEER SHALL VERIFY FOUNDATION HIGHLY EXPANSIVE SOILS (MH-CH) SHALL NOT BE USED IN THE OTHER COMPATIBLE &EO&RID5 MAY BE SUBSTITUTED WITH THE APPROVAL SOILS AS BEING COMPETENT PER THE DESIGN PARAMETERS. REINFORCED FILL ZONE. OF THE WALL DESIGN ENGINEER. 6.0 LEVELING PAD SHALL CONSIST OF COMPACTED SAND, GRAVEL, 5 THE DESIGN OF THE SEGMENTAL RETAINING WALL (SRW) OR COMBINATION AND SHALL BE A MINIMUM 6-INCH THICK 15.0 REINFORCED FILL SHALL BE PLACED IN 8-INCH LIFTS AND A55UMES THE FOLLOWING PARAMETERS: LAYER WITH A MINIMUM WIDTH OF 24 INCHES. COMPACTED TO A MINIMUM OF 95% OF MAXIMUM STANDARD Ym, Moist FRICTION AS AN ALTERNATIVE, A MINIMUM 3-INCH THICK LAYER OF PROCTOR DENSITY (A5TM D-698) AND WITHIN + 3 PERCENTAGE SOIL SOIL UNIT WEIGHT ANGLE COHESION LEAN CONCRETE (FLOWABLE FILL) WITH A 28-DAY COMPRESSIVE POINTS OF OPTIMUM MOISTURE CONTENT. COMPACTION TESTS SHALL CONDITIONS Type (PCF) (DEG) (PSF) STRENGTH OF 200-300 P5I MAY BE USED AS A LEVELING PAD. BE PERFORMED AS THE WALL IS INSTALLED. COMPACTION WITHIN REINFORCED FILL Granular Soil 120 28 0 7.0 A 4-INCH-DIAMETER SLOTTED DRAINAGE PIPE SHALL BE INSTALLED 3 FEET OF THE WALL SHALL BE LIMITED TO HAND -OPERATED EQUIPMENT. RETAINED SOIL On -Site Soil 120 28 0 BEHIND THE WALL AND CONNECT TO WEEPHOLES INSTALLED AT FOUNDATION SOIL On -Site Soil 120 28 100 THE BASE OF THE WALL (40 FEET ON CENTER) AND EXTEND BEYOND 16.0 A VIBRATORY PLATE TAMPER SHALL BE USED TO DEN5IFY THE FINAL GRADE TO DAYLIGHT (SEE DRAIN DETAIL). NO.57 STONE. COMPACTION TESTS CAN BE WAIVED 6 SOIL STRENGTH PARAMETERS ARE BASED ON USE OF GRANULAR SOIL FILL 8.0 DRAINAGE AGGREGATE AND UNIT (CORE) FILL SHALL CONSIST OF WHERE NO.57 STONE IS USED AS REINFORCED FILL. OR LOW PLASTICITY SOIL IN THE REINFORCED FILL ZONE. CLEAN ANGULAR &RAVEL (VDOT NO.57 STONE), MEETING THE FOLLOWING 17.0 CONTRACTOR SHALL SLOPE SITE GRADES TO DIRECT SURFACE ALL ENGINEERED FILL SHALL BE PLACED IN MAXIMUM 8-INCH LIFTS GRADATION AS DETERMINED IN ACCORDANCE WITH ASTM D-422. RUNOFF AWAY FROM WALL AT END OF EACH DAY TO AVOID AND EACH LIFT I5 COMPACTED TO A MINIMUM OF 95% OF WATER DAMAGING THE WALL WHILE UNDER CONSTRUCTION. MAX. STANDARD PROCTOR DENSITY, AND WITHIN+ 3 PERCENTAGE POINTS SIEVE SIZE PERCENTAGE PASSING 18.0 ANY SURFACE DRAINAGE FEATURES, FINISH GRADING, PAVEMENT, OF OPTIMUM MOISTURE CONTENT, USING PORTABLE COMPACTION EQUIPMENT. 1-112 INCH 100 OR TURF SHALL BE INSTALLED IMMEDIATELY AFTER THE WALL IS COMPLETED. 1 INCH 95-100 19.0 IF SITE AND SOIL CONDITIONS, WALL GEOMETRY, OR WALL DO NOT USE HIGH PLASTICITY CLAY (CH-MH), ROOTS OR TOPSOIL IN REINFORCE 1/2 INCH 25 - 60 LOADING ARE DIFFERENT THAN THE DRAWINGS AND THE DESIGN ZONE. ANY SOFT, SATURATED SOIL ENCOUNTERED IN 5UB&RADE SHALL BE NO.4 0-10 PARAMETERS, THE CONTRACTOR MUST CONTACT THE WALL DESIGN UNDERCUT AND REPLACED WITH CRUSHED STONE TO STABILIZE THE NO. 8 0-5 ENGINEER PRIOR TO PROCEEDING WITH THE CONSTRUCTION OF THE WALL. FOUNDATION 5UBGRADE OR AS DIRECTED BY THE GEOTECHNICAL ENGINEER. 9.0 GEOGRIDS SHALL BE LAID HORIZONTALLY ON COMPACTED BACKFILL FOR THE REQUIRED &EO&RID LENGTH (GL) IN THE TENSILE STRENGTH DIRECTION (PERPENDICULAR TO WALL FACE) NOTED ON THE WALL PROFILE. THE GEOGRID SHALL BE PLACED WITHIN ONE INCH OF THE FRONT FACE OF THE UNIT BELOW AND EXTEND HORIZONTALLY OVER COMPACTED FILL. 10.0 ANCHOR DIAMOND PRO UNITS MOLDED DIMENSIONS SHALL BE 8 INCHES HIGH BY 18 INCHES LONG BY 12 INCHES DEEP AND SHALL NOT DIFFER MORE THAN + 1/8 INCH IN ANY DIMENSION. 11.0 A 1-INCH SETBACK PER UNIT (REAR LIP) SHALL BE MAINTAINED FOR PROPER BATTER (I.E. 7 DEGREE CANT FROM VERTICAL). 12.0 GEOGRIDS SHALL BE PLACED WITHIN 1 INCH OF THE FRONT FACE OF THE UNITS AND GEOGRID5 PULLED TIGHT (AFTER PLACEMENT OF THE NEXT COURSE OF BLOCK UNITS) TO REMOVE SLACK AND TO INTEGRATE GEOGRIDS AND UNITS. 13.0 FIELD ADJUSTMENTS OF BLOCK ALIGNMENT MAY BE MADE ON NON -REINFORCEMENT LAYERS WITH THE USE OF SHIMS OR ASPHALT SHINGLES TO RAISE ONE COURSE OF BLOCK BY A MAXIMUM OF 1/4 INCH VERTICAL HEIGHT. 20.0 DETAIL FOR HANDRAIL OR FENCE POSTS AT THE TOP OF THE WALL IS PROVIDED FOR PLACEMENT OF POSTS. FENCE P05T5 SHALL BE PLACED DIRECTLY BEHIND THE WALL USING 5W SLEEVE -IT FENCE POST ANCHOR SYSTEM. 1" Setback )pen Cells Filled With Stone) 1" Rear Lip UNIT CONNECTION DETAIL (Not to Scale) WALL A - MAX. WALL HEIGHT = 9.33 FEET (INCLUDING EMBEDMENT) FRONT SLOPE = LEVEL TO MAX. 3H:1V BACKSLOPE BEHIND THE WALL = LEVEL SURCHARGE AT TOP OF WALL = 100 P5F MIN FACTOR OF SAFETY (SLIDING) = 1.5 MIN FACTOR OF SAFETY (OVERTURNING) = 2.0 MIN FACTOR OF SAFETY (BEARING CAPACITY) = 2.0 DESIGN SOIL BEARING PRESSURE = 1,500 PSF MICIIA�EIMfCI Na. (1l1245 5 �i3�21 Albemarle Circe0 Geotechnical Engineering, P.0 Virginia 5956 Buckland Mill Road Roanoke, Virginia 24019 Phone:(540) 366-2379 Scale: 1 N/A I Project No. I RW-2582 Date: 05/13/21 Cap Unit Filter Fabric - 4 FT Wide Adhere to Top Unit Mirof i 140N or Equivalent wl Concrete Adhesive Geogrid Reinforcement SRW Units RRE I Sm i 0 i I i z 0 111n 111n 0 iii MEMEM MIMIM 111n 2: 0: 222 r Drainage Aggrmegote Min 12" No. 57 Stone Retained Soil Reinforced Fill 01M l\■iill:i���i�.waaoi�.uao...una. III .A10111iiiiiiiiiiiiiiiiiiii Mili7liffilmmImmilmimmim Compact to Min 95% 4" Lim. Perforated brain Pipe Standard Proctor Reinforced Fill III 12" Thick VDOT No. 57 Stone Compacted • Granular SoilIrl a . ......... STE --- — — — — — — — Storm Drain Ell RTM RWM 0Irl Place Geogrid Under or Over Pipe III (Min 3" Soil Cover) 1/8" W /7 L- Anchor Diamond Pro Units L-Wall brain Pro (Weephole) at Max. 40' O.C. Drain to Daylight WALL DRAIN PRO DETAIL (Not to Scale) Note: Shrubs can be planted behind the wall. The top geogrid layer can be cut using a utility knife for placement of the root bulbs. Sleeve -It SD1 Fence -Post Anchor Sy; 7=0 Min 12" Thick i/[)OT No. 57 Stone MOO "--mm Start Geogrid Approx. 1" From Front of Units SPW Unit GEOGRID PLACEMENT DETAIL (Not to Scale) Secure with Concrete Adhesive (Alternate Every Other Course) 900 OUTSIDE CORNER (Not to Scale) 42" Tall Fence or Handrail Post -Sleeve-It SW Fence -Post Anchor System - Top bia. 7.4" Grout Fill After Post Installation wl Min 3.000 DSI Grout Bottom bia. 9.4" Filter Fabric - 4 FT Wide Mirafi 140N or Equivalent r— Cantilever Base 30.6"L x 15.3"W 12" Soil Cover 214" . . . . . . . . . . 30.6" N,1 Reinforced Fill SLEEVE -IT FENCE POST DETAIL (Not to Scale) LGPO�J_ GEOGPID AT STORM DRAIN DETAIL (Not to Scale) ONE 11FAM DIM ■ Fin Ell■ lOM11 I I 0 MMEMEMEMEM BE Ion ME Emmons 101MOMMEEM nonsommossm IMMEMEMEMERIftia EMEEEEEEEEEEE&2 LOSE Will askINIME 2---airIENEEMEM MENOMONEE 110111111 MOMMENE MMMMMMMMMMMMMMM 00110011001010110000 011111110112■MESON M11ME hiMMEMMMOMMEMMM MOOMMOM on EMEMMEM minim■I MENEM■MEMO .... MEMNON■MENEM NEE■E■OMEN GEOGPID AROUND MANHOLE (Not to Scale) 1111,11CHAR R. ft, 021245 quo I IV A L Eri irceo 6 Buckland Mill Road CGeotec ni al Engineering, g, P.C.eerinRoanoke, Virginia 24019 I Phone: (540) 366-2379 Project No. I RW-2582 1 LOT 11 LOT 12 LL,,AAT 13 .' p1 1,397SF 1,406SF /f,800SF 9 FFE 478.5 FFE 477.5 FFE 477.5 E U5 "Z ® / Gi r '4) NEW VARIAULE WIDTH CESS ESMT I / / a 202 'a t. 5.%K // / / I p i 1" / _L II. tt ._LL LLLLLLI LL I IJk. _ �1 74 i Sta. ZOO _I_ Lt LLLL_LLLLL LLLL,�uyyL�IyFI/a..4.L1.L 1 L ff�o �1 _LLLLL LI._LLLLLL LL 9 } i,m L �I I L — x7�/LLLL L_'LA�[Lll /7 / 2.0% tiL L LLLL LL LL L `10.0' / —�4 _L LL- LL_LLLLLLLL& LLL Sta. 1HO780�,-7 NEW -- FHA 8-- _IP Cj3 i MHW1 / to.160 ; .—..—..—..�..— — \ / � ,;.• / /' `WAIL HEIGI4T 4' sto.140. 2 WALL A Tall Pedestrian Guard LOT 1718 2,106SF / / �`s' Where Exposed Wall Height (H) > 30" B 1 2,41 0SF FFE 479.5 FFq 478 a >S NEW 120 DI-, / 7�� i 72 3. Stc.100 Sta. 0 Sta. 20 / Sta. 40 / Sta. 60 Sta. 80 Sta. 97.5 AX. WALL HEIGHT 6' / MP 6'F-El / — — — ROE3`cRT IIAU'ER HG'v'ES INC r. O ST =ENE ;ALIC DE 4717 GG 703 ZONE; R4 RESIDENTIAL SHFj HERDS RIDGE Scale: 1"=20FT USE: FORE T ROAD ENLARGED SITE PLAN 1.20 A-C 0 10 20 J MICNAft R. EiNfCi No. 011245 Standard GR-2 Guard Rail Post Min 30" Clear Distance Behind Top of Wall, Max. 6'-3" O.C. Post Spacing Drive Post Through Geogrid Layer(s) Reinforced Fill GUARDRAIL POST DETAIL (Not to Scale) Circeo 5956 Buckland Mill Road Geotechnical Engineering, P.C. Roanoke, Virginia 24019 Phone:(540) 366-2379 Scale: 1" = 20 FT Project No. RW-2582 Date: 05/13/21 Revision: I --- I Sheet 1 4 of 5 ■ ■ ■ ■1■ ■ ■ N ■ ■ NNN NNN NN-■ NN-■ • C N N---■-----------IJN-■-----N■-N-- w IINNNNNN aeyanraorence NNNNNNNNNNNN-■NNNNNN■-NNNNNNNNNNL� NNNNNN • .. 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ProposedGrade at Bottom rain Pipe to Daylight - 40 FT O.C, (Typical) 1 m 1 ® I 1 .1 m 1 • •1 ® 1 1 WALL A mm :1 • • — -------I ------------ - -------1' --- ---- ---------I —00 ------rl-TOC --------- — — ------M ---r ---1 --------- -------■ --------- — MMMMMME NI-NNNI- IINNI-NNNI I-NNNNNNNI-NNN --■NNNNNN I-NNNNNNNNNNI •N-■NNNNNN■-N 1 _-_._____.____.._-____-_-_____._____-__-___� I��r� rrZrr NNNNN r�rri�rrr�rrr���rri�.-�Sr�����N--■Ni��^i�l�i�� N�NT •fJ1NNNr-wwwww■Io.o.NN-N- NNN■-NNNNNINNNNN .1 45 wwN■-r- N■-■-■^-■-■-wwi-■-r-wN �i■A��i��ii...... luuuuuuuu -iwr--i - '�i.�r■-ir�•ir��� o F■� . . . . . . oowwwoa NNNNN Nlu/N■-N w—■-■-w .�A��i�NNNN1000Yal--Yl rir•w■�-N�l��rirlNN■IWYWWWN • rN -N'�lN— ■1 - BOW 470.00 / :• :.• 6.00 Leveling Pad I • /' / Daylight 40 O.C. I :• 7 NNNNNN-NNNNNN Proposed Grade at Bottom of / NNNN■-NNI-NNNNNNNNN NNNNNN-NNNNNN NNNN■-NNNNNNNNNNNN-■NNNNNN■-N NNNNNN-NNNNNNN■-NNNN NNNNNNNN-■NNNNNN■-NNI-NNNNNNNNN-■NNNNNN■-N 1 140 F 1 160 170 ® :1 190 1 1 I I I� GL=8FT J LEGEND ® Cap Unit (4" Height) 0 Anchor Diamond Pro Units (8" Height x 18" Width) Leveling Pad (Min. 6" Thick x 24" Wide Crushed Stone) TOC Top of Cap Unit TOW Top of Wall (Excluding Cap Unit) BOW Bottom of Wall (including Embedment) 200 ' — ' StratoGrid 56200 0 4" Drain Pipe to Station (ft) 1 I GL = 6 FT I GL=4.5FT �I -It in = 470.67 (Q'1#1C*M4Et'R. Circeo5956 Buckland Mill Road Geotechnical RETAINING WALL A Engineering, P.C. Roanoke, Virginia 24019 Phone: (540) 366-2379 No. 011245 1 Sta. 0 to Sta. 202.5 5 15 'e��H; 1„= 1ofr. Viewed From Front Face of Wall \ Scald: V: 1"= 10 ft. Project No. RW-2582 S�Fol i ECG Date: 05/13/21 Design Soil Bearing Pressure = 1,500 psf] I I Revision: I --- I Sheet 5 of 5