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2. ?????:-. ?? ???? ???? ???? ??? ????? ???? ?????? ??? ?? ????? ?? ???? ?????? ?? ???? ????????? ? ???? ????? ??????? ?????? ????? ?????? ???? ?? ?????( Z) ??? ??? ????? ??? ????? ??????? =????? ?????? ?????? ??? ?????? ???????? ??:????? ?????? = ????? ??????? = ?????? ????? ???? ??????? ????? ??
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1. Dr. Ahmed AbdelRaheem 1 ?????? ???????? ?????? Lateral Earth Pressure
2. 2 ?????:- ?? ???? ???? ???? ??? ????? ???? ?????? ??? ?? ????? ?? ???? ?????? ?? ???? ????????? ? ???? ????? ??????? ?????? ????? ?????? ???? ?? ?????( Z) ??? ??? ????? ??? ????? ??????? =????? ?????? ?????? ??? ?????? ???????? ??:
????? ?????? = ????? ??????? = ?????? ????? ???? ??????? ×????? ?????
????? ????? ??? ????? ??????? ?????? ??? ?????? ??????=1/2 × ???? ?????? ???? ????? ???? ??????? × ????? ?????
?????? ????????? ??? ?????? ?????? ????? ????? ?????? ???? ???? ??? ????? ???? ?????? ? ?? ???? ????? ??????? ???? ?? ????? ?????? ?? ??????(??? ???????? ?? ????)
3. 3 ????? ????? ??????? ?? ?????? ??? ????? ????? ??? (Active Earth Pressure) ?? ??? ?????? ??????? ??? ?????? ? ?????? ????? ????? ??????.
?????? ?? ??? ?????? ???? ??? ?????? ????? ?????? ??? ?????? ????? ?? ??? ?????? ? ????? ?????? ???????? ????? ?????? ? ???? ”?????? ??????“
??????? ?? ???? ?????? ???????? ???????? ?? ???? ???? ????? ??????? ??????? ??? ?????? ?????? ? ???? ???? ????? ??? ????? ??? ?????? ? ???? ???? ????? ?????? ??????? ??? ?????? ?????? ???? ???? ?????? ??? ???:-
?-?????? ???????
?-1-????? ??????? ??????? ????? Active Earth Pressure
??? ????? ???? ????? (Passive Earth Pressure) ?? ????? ??????? ?????? ????? ??? ?????? ? ???? ?????? ???? ? ?????? ?????? ? ??? ????? ?? ?????? ???? ???? ??? ?? ??????? ???????.
?????? ?? ??? ?????? ???? ??? ?????? ??????? ????? ?????? ? ???? ???? ????? ??????? ?????? ??? ???? ?????? ??????.
??? ?? ???? ??? ???? ???? ?????? ?????? ?????? ???? ?? ??? ?????? ???? ????? ??????? ??? ?????? (Earth Pressure at Rest)
4. 4