Transcription of 地盤沈下と対策 - Toyo University
1 * * CaCO3 50 1930 cm . km2 km2 cm . cm 5 Collapse Co Lapse ( ) 2 ( ) r1r2h2h1 DQD r1r2h2h1Q rh ( )
2 H s dZmszzv Z dZmszzv zvmz z (u) qqq A/n A/nq A/n A/nzuuuZ n n A q n q+u(1- A) qqq A/n A/nq A/n A/nzuuunq u(1- A) A 1 A=0 = +u qqq A/n A/nq A/n A/nzuuu ' uqqq A/n A/nq A/n A/nzuuuP10 m t=20 kN/m3P=20 kN/m3 10m=200kN/m2P3 m t=20 kN/m3P=20 kN/m3 3m+(20 10) kN/m3 7m =130kN/m27 m w=10 kN/m3 P5m t=20 kN/m3P=20 kN/m3 5m+(20 10) kN/m3 5m =150kN/m25m w=10 kN/m3 t=17 kN/m3 sat=14 kN/m3Cc= m10 m4 m sat=20 kN/m3 t=17 kN/m3 sat=14 kN/m3Cc= m10 m4 m sat=20 kN/m3 4 m 1 3 (1956 ) ( ) (1962 ) 2.
3 10 4 3 ( ) ( ) 1989 2 10 9 3 5 17 3 30m 1996 ( )
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