TY - JOUR
T1 - Settlement of dredged and contaminated material placement areas. I
T2 - Theory and use of Primary Consolidation, Secondary Compression, and Desiccation of Dredged Fill
AU - Stark, Timothy D
AU - Choi, Hangseok
AU - Schroeder, Paul R.
PY - 2005/3/1
Y1 - 2005/3/1
N2 -
A 1D nonlinear numerical model, Primary Consolidation, Secondary Compression, and Desiccation of Dredged Fill (PSDDF), is presented to predict the settlement of fine-grained dredged material and/or underlying compressible foundation materials that may be over-, under-, or normally consolidated. The three most important natural processes affecting the long-term settlement and thus service life of dredged material placement areas are primary consolidation, secondary compression, and desiccation. Nonlinear finite-strain consolidation theory is used to predict the settlement due to self-weight and surcharge-induced consolidation. The C
α
/C
c
concept is used to predict the settlement from secondary compression, and an empirical desiccation model is used to describe the settlement from removal of water from confined dredged material by surface drying. This paper describes the modifications and improvements of PSDDF that present new functions and enhanced numerical efficiency. A companion paper describes the input parameters of PSDDF.
AB -
A 1D nonlinear numerical model, Primary Consolidation, Secondary Compression, and Desiccation of Dredged Fill (PSDDF), is presented to predict the settlement of fine-grained dredged material and/or underlying compressible foundation materials that may be over-, under-, or normally consolidated. The three most important natural processes affecting the long-term settlement and thus service life of dredged material placement areas are primary consolidation, secondary compression, and desiccation. Nonlinear finite-strain consolidation theory is used to predict the settlement due to self-weight and surcharge-induced consolidation. The C
α
/C
c
concept is used to predict the settlement from secondary compression, and an empirical desiccation model is used to describe the settlement from removal of water from confined dredged material by surface drying. This paper describes the modifications and improvements of PSDDF that present new functions and enhanced numerical efficiency. A companion paper describes the input parameters of PSDDF.
KW - Clays
KW - Compression
KW - Consolidation
KW - Desiccation
KW - Dredge spoil
KW - Finite element method
KW - Settlement
UR - http://www.scopus.com/inward/record.url?scp=14644415534&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=14644415534&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)0733-950X(2005)131:2(43)
DO - 10.1061/(ASCE)0733-950X(2005)131:2(43)
M3 - Article
AN - SCOPUS:14644415534
VL - 131
SP - 43
EP - 51
JO - Journal of Waterway, Port, Coastal and Ocean Engineering
JF - Journal of Waterway, Port, Coastal and Ocean Engineering
SN - 0733-950X
IS - 2
ER -