Laserfiche WebLink
NGADreflirv 2005uN805En 4n AvanusL W11B05 iRa �e . <br /> I C1 � <br /> � U <br /> I <br /> Cut Rockery Detail � � <br /> (Not to Scale) � � <br /> � � <br /> NOTES: " <br /> 12 to 18 Inches z° ^ <br /> � 2 1. The geotechnical engineer sha!I approve ail <br /> (Fe jt 1 (max) � rockery materials prior to construction. � F ��� <br /> min C1 �^ <br /> I 2. All rock shall be sound, angula•ledge, with a Z Z p �� <br /> minimum material densiry of 160 PCF. U — W $�� <br /> 3. The base rocks shall measure at least one-third F W � ��� <br /> of the total wall height including embedment, in W 4 � <br /> `� `� � ->' �—Low Permeabiliry Material the direction perpendicular to the cut face. V, U W <br /> 1 `.:'.;�-1; <br /> �� �'= '�:-:; 4. The base rock shall be embedded at lease 12 � y i <br /> 6 t �'��`� inches into the native firm subgrade, u1 Q Z <br /> ,� :,,7} o J W <br /> Total Hei ht H) �h�� Free-Dreining Backfill (Max. 5/o Fines). 12-to 18- W <br /> 9 � :�?-'�� Inche Wide Layer of 2-to 4-Inch Rock Spalls 5. Each successive rock shall stet on at least two Z ` o <br /> (6 Feet) (max) �?�;;�.x rocks in the preceeding row. � � � <br /> � tx� ,.�L , w�� <br /> . Stif � <br /> , ,., Stable Cut Face in Medium Dense or Q = o�n <br /> ' Better Soil 6. The face of the rockery shall be battered at , n � �� <br /> , ,y�,, � , . ,. , 1 H:6V back toward the cut. v F ��� <br /> I 12-Inch (min) �; Z o <br /> Embedment <<< ;' ""� Filter Fabric 7. A rock s pall draina ge la yer, 12 to 18 inches in � � <br /> I T .�� ��; thickness, sh�ll be placed between the back of <br /> T the wall and the cut being protected. <br /> 1-Inch or Less Diameter Washed Gravel; <br /> Native Undisturbed Min. 6 Inches of Cover Over Pipe and a Min. of 2 Inches <br /> � Soil or Structural Fill � H/3 (min) � Under Pipe 8. A minimum 4-inch diameter perforated drain <br /> � pipe, embedded in at least 12 inches of pea <br /> Minimum 4-Inch Diameter Rigid PVC Perforated gravel or washed rock, and wrapped with a filter <br /> Pipe; Min. 1°/a Continuous Slope io Outlet fabric, shall be ^laced at the bottom of the <br /> drainage layer. � � <br /> � o <br /> 9. Rockery construction shall be in accordance to aci � <br /> the Associated Rockery Contractors (ARC) ¢' � <br /> standard rockery construction guidelines. � � <br /> , 10. All recommendations found in NGA Geotechnical W c� <br /> Report Dated May 20, 2005 shall be followed. <br /> .�' <br /> E ,n rn <br /> Z a�o °� <br /> � <br /> � Ti `- � <br /> � rn <br /> d � LL <br /> �O <br /> � <br /> I a <br />