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. o , NOTES: DRAINAGE STONE SPECIFICATION: <br /> W <br /> L° l. THE SECTION SHOWN REPRESENTS TYPICAL CONSTRUCTION FOR THE GONYEA DRAINAGE STONE SHALL CONSIST OF CLEAN 1" CRUSHED STONE (PHI 40°) <br /> aGRANITE CUBE BOULDER WALLS IN ORONO, MINNESOTA. THE WALL HEIGHTS, MEETING THE FOLLOWING GRADATION: <br /> N ELEVATIONS, BACK SLOPES AND TOE SLOPES VARY AS SHOWN ON THE SITE PLAN BOULDER DEPTH SCHEDULE: <br /> � AND ELEVATIONS PLANS RESPECTIVELY. (3H:1V MAX TOE SLOPE)(35H:1V MAX BACK SLOPE) SIEVE SIZE: %PASSING <br /> o WALL HEIGHT(H): MINIMUM BOULDER DEPTH(D): 1" 100 <br /> UPON EXCAVATION, WHERE UNSUITABLE SOILS ARE FOUND, SUBCUT TO DEPTH 3/4" 100-75 <br /> � � "S"AND REPLACE WITH SUITABLE STRUCTURAL FILL TO ACHIEVE THE RE UIRED 0-5' ?4" NO.4 0-10 <br /> " BEARING CAPACITY. THE STRUCTURAL FILL SHALL BE COMPACTED TO A � �8 NO. 50 0-5 <br /> c.zj MINIMUM 95%STANDARD PROCTOR DENSITY. 7 3� <br /> N 8' 36" <br /> � 3. APPROXIMATE LIMITS OF EXCAVATION VARIES WHERE SUBCUT IS REQUIRED. �� 41" <br /> � ACTUAL LIMITS AND SIDE SLOPES TO BE DETERMINED BY CONTRACTOR AND <br /> p MATCH FIELD CONDITIONS AND OSHA REGULATIONS. <br /> z RETAINED BACKFILL SPECIFICATION: <br /> z 4. THE BOULDER WALLS ARE DESIGNED AS GRAVITY WALLS: <br /> ° MINIMUM SAFETY FACTOR FOR OVERTURNING________15 <br /> � (PIT RUN SAND=PHI 30)RETAINED BACKFILL SHALL BE FREE OF <br /> F MINIMUM SAFETY FACTOR FOR SLIDING 15 DEBRIS OR ORGANIC MATERIAL MEETING THE FOtLOWING <br /> �. MINIMUM SAFETY FACTOR FOR BEARING 2.0 GRADATION: <br /> � <br /> � S1EVE SIZE: %PASSING <br /> � 5. THE MINIMUM BOULDER DEPTH (D) IS A FUNCTION OF THE OVERALL WALL 2" 100 <br /> w HEIGHT AS SHOWN IN BOULDER DEPTH SCHEDULE. A SMALLER BOULDER (D/2) 3/4" 100-75 <br /> �' MAY BE USED AS A TOP BOULDER FOR FINISHED GRADING PURPOSES. NO.4 ZO-100 <br /> � <br /> a NO.40 0-60 <br /> 0 6. THE BOULDERS SHALL BE PLACED TO AVOID CONTINUOUS JOINT PLANES IN NO.200 0-35 <br /> z VERTICAL OR LATERAL DIRECTIONS. EACH BOULDER SHALL BEAR ON TWO OR <br /> OMORE BOULDERS BELOW IT,WITH GOOD FLAT-TO-FLAT CONTACT. NOTES: PLASTICITY INDEX(PI)< 10 <br /> U <br /> � 7. COMPACT ALL SOILS PLACED BEHIND THE DRAINAGE ZONE TO 95% STANDARD H1 =EXPOSI:D WALL HEIGHT <br /> o PROCTOR DENSITY. <br /> H=EXPOSE�WALL HEIGHT+EMBEDMENT <br /> � . <br /> U <br /> 0 8. THE WALLS REQUIRES A MINIMUM EMBEDMENT DEPTH "E" TO THE ELEVATIONS <br /> � SHOWN ON THE WALL PROFILES.(12"MIN) <br /> � 8°LOW PERMEABLE SOIL <br /> w 9. PLACE A 4" DIAMETER PERFORATED CORRUGATED DRAINPIPE WRAPPED WTIH D�� (PLANTING AREA) <br /> � GEOTEXTILE FABRIC INSTALLED AS LOW AS POSSIBLE WITH POSITNE DRAINAGE. � <br /> F OUTLET THRU FACE AND LOW ENDS OF WALL. <br /> a <br /> O <br /> 0 10. A GEOTEXTILE FABRIC SHALL BE PLACED WHERE BOULDER WALL ABUTS TO CUT GRANITE BOULDER <br /> z BUILDING FOUNDATION WALL AS SHOWN ON SHEET Z. OVERLAP ABUTMENT 12°MIN DRAINAGE ZONE <br /> � JOINT Z4"WITH A MINIMUM 48"WIDE FABRIC TO PREVENT DRAINAGE STONE AND (1"CRUSHED STONE) <br /> - BACKFILL FROM MIGRATING THROUGH THE ABUTMENT JOINT.(SEE DETAIL) APPROXIMATE LIMITS <br /> w <br /> � 11. DURING WALL EXCAVATION, BENCHCUT AS REQUIRED TO FACILITATE BACKFILL � x OF EXCAVATION <br /> � OPERATION AND BOND BETWEEN INSITU MATERIAL AND BACKFILL MATERIAL. 1� RETAINED BACKFILL <br /> ° FINISHED GRADE <br /> � 12. DO NOT BRING HEAVY COMPACTION OR PAVING EQUIPMENT WITHIN 3' OF THE "E" 8 OZ FILTER FABRIC � <br /> o BACK OF THE PROPOSED RETAINING WALI.. SEE NOTE 3 <br /> � <br /> z BENCH CUT <br /> � <br /> � � � <br /> ¢ <br /> 0 <br /> � <br /> w 1 � �1 1 1 ��5�� <br /> 0 <br /> � 1 1 1 1 <br /> z <br /> U <br /> � <br /> o LOW PERMEABLE SOIL <br /> � <br /> � 4"PVC DRAINTILE W/SOCK.(SEE NOTE 9) SUBCUT(SEE NOTE?) <br /> r <br /> � <br /> N TYPICAL BOULDER WALL SECTION A-A <br /> o (WALL 1 SECTION SHOWN AT 15') <br /> � <br /> z <br /> r� t����e���'d Hr N���i��<<� R`�'��1°°°"N°' I hereby certity that thi, I �,�p� ification,or repor[�+�as prepared by <br /> � N,,. u��e K��.a�,� av 25493 <br /> p SRS GONYEA GRANITE CUBE WALl.S me or under uy dire t � perv.ion and that I am a duly Licensed <br /> � �����E��GN 2 �RONO,MINNESOTA p1OJeYN� Professional n�;n � 1 t laws of the Sta[e of Minnesota. <br /> s��i<: <br /> ~ 3 ##### 14-0694 <br /> � � i< t> � ? ' : , ,i � rd,: <br /> �{`9LYNI)ALEAVENUESI)UTH,SUlTk2L`ORLI)()MINGTt)N,MN55�20 S ')�,t`� G1�L 1VI�WALL SECTI�N AA ShcetNo: /�/f-�//� <br /> P PHt)NE 19521iO3-SlI21YAX:(763)19219�I WEBJITE WWW.(:DP-Vc.(.UM DEiC 1�Z01 l�'.'tc- �/�1/^�n <br /> 4 ,.re.ow�x�r,�a��Fvs�H„�rw��.n.a.,,.<n��ne��cNvnore�x�N��, 6 4 � MICHAEL R.JOHNSON,P.B. <br />