Laserfiche WebLink
�� <br /> BUILD �� *��.::W__�Ev���=E <br /> Proper retaining wall design requires 5E'9^K �Q���E�.� � <br /> � evaluation of the following elements: i � } �_ � <br /> 1. seiect u,s v�eit loasaan I i_� " - , <br /> p�qN • Minimize soil ezcavation and back(iIL � I <br /> • C,�timize grading and drainage pattems. �— —i——;%� <br /> • Consider ezisting site features. f �. � <br /> � .' GEa'.R�C � <br /> 2 De6errYir�e v�ell hei�! a�d g�otetry ���;.� —�—/ <br /> • Calculate the wall height al its tallesc position. r� , l' ��%` _ _ . <br /> • Identify slopes above and below the wall. � • - -•- <br /> • Evaluate surcharges from vehicular or construction traffic. <br /> • $elect the appropriate wall baller or setback. ' : • • . <br /> 3 BRal�a6e stru�.ral ret}ar�erra��s � <br /> Ift 8fl BR 10ft <br /> • Check the gravity wall table on page 8 for reinforcemenl requirements. <br /> • If geogrid is required, see pages 21�24 for approximate grid length. <br /> • for proJeus that fall beyond the scope of ihe tabtes in lhis manual, �• 2,51n 3.75in Sin 6.2:iin <br /> refer to the Allan&ock Engineering Manual or coryap a qualified enginea. <br /> � ��� �� � ��� ���Q�e 8' Sin 7.51n 101n 12.Sin <br /> • Use table 75.7 to calculate the tolal wa�l setback. <br /> • Add lhe required grid lenglhs to determine tolal wall envelope. <br /> • Cross check the IoWI wali envelope with available space a[wall sile. �Z� 10in 15in 20in 25in <br /> Note: Walls designed with a 12°se�back require more space Iban 3°or 6° <br /> systems, but need less reinlorcemenC You may give up ground but total wall Use tbis chart fo theck Ihe fotal TabM 7b.7 <br /> cosls will be lower. setback ol your wall Cesign. <br /> '�Ta01'� <br /> • When terraced walls are cons�ructed ihe upper <br /> terraces can acl as a surcharge on lower walls. <br /> • For walls�o oerform independently, lhe dislance �� qy �.l �.`r;�,��; `rµ <br /> between lerraces must be two times Ihe heighl of � ��. •�� � � ` ' �� ` , �� <br /> �he lower wall. ` ' � J - �•'�'. +� <br /> • For walls built closer lo rlher, Iobai slabilit ° � � <br /> 9� 9 Y ""�>,..��,� . <br /> should be evalualed. Y+�+��'.,���� ����� . <br /> Sec relcrencc 4, 7. 27 ' ' <br /> � ' � t ' <br /> a� <br /> � � "�. <br /> � <br /> Terraced Walls � <br /> ' ]��;::.�„�' `j� <br /> ' �' <br /> � 1� ' <br /> ' C � �.I� .'.'/ � _ ►� ' � <br /> j � ; <br /> • ,�i,. y�` J I_�_ ,�d' <br /> " �'� ✓: , �-+� � <br /> , ', <br /> _�� ^ ,` I , ..._.. <br /> , ���. '. _ <br /> 15 No Rein(orcement Required ReinforaemeM Requirad <br />