





Strain (fjinVin.) 





1,000 



2,000 3 000 







1 



Condition 



1 1 





Sphere 



of 



fc 



,000 



Symbol No. 



Concrete 



(psi) 





& CDS-1 



dry 



9,250 



9,120 ^^'^~ 



7.660 /^/® 



K O 





G CDS-2 

 • CDS-4 



dry 

 saturated 











000 



- 









_ 



A 









y 



/y 







A' 



o 







a'J^ 1 







a/<^ 



A<0^ 





000 











^<f 







/^ 









J''' 









^ 





— 





J/ 









J' 









' rl 









Qt 









rC\ 









(^ 









£ 









/ 1 



1 



1 1 1 



- 9,000 



0.3 

 Displaced Water (ft ) 



Figure 21. Displaced water versus pressure for short-term implosion of non-preloaded spheres (from 

 Ref 5). 



25 



