z s s ,eff a s * s
hdh −=−=>=⋅=25021931010125025,,mm
k
φφ ss ct ccr f kh h ==⋅ = * , , , , ,, , eff mm 29 5 11 29 29 50405250 250 110 s s s * a
hdh −=−=<=⋅= 25022921010125025 ,,
k
φφ ss ct ccr f kh hd = () =⋅⋅ ⋅⋅ = * , , , , , ,, eff 292 116 29 29 0405250 221 13,,8mm f sm f kf p ct p == ⋅ = , , ,, , , eff eff MPa ρ 1029 00188 1542
smssp f =−+() {} =⋅−⋅+ max,;,max,,;,,, 0604190630223022041542119 181323292329 () {} = {} = max,;,,MPa.
005531855103103 , ,,,,cmmm.
