Consolidation and permeability characteristics of high-porosity surficial sediments in Eckernforde Bay

被引:14
作者
Brandes, HG
Silva, AJ
Ag, A
Veyera, GE
机构
[1] Marine Geomechanics Laboratory, University of Rhode Island, Narragansett
关键词
D O I
10.1007/BF01204506
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Back-pressured, constant-rate-of-deformation consolidation, and permeability tests were conducted on 21 ''undisturbed'' samples from Eckernforde Bay in the Baltic Sea. The soft fine-grained sediments have very high in-situ void ratios and are highly compressible. The compression index decreases slightly in the upper 40 cm but remains essentially unchanged below 40 cm at an average value of 3.5 to a depth of 260 cm. Recompression indices range from 5 to 19% of the virgin indices. The preconsolidation stress is consistently higher than the overburden stress, particularly near the surface. Permeabilities at in situ void ratios vary between 3 x 10(-4) and 10(-6) cm s(-1), with the relationship between void ratio and the logarithm of permeability being linear.
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页码:175 / 181
页数:7
相关论文
共 17 条
[1]  
AG A, 1994, THESIS U RHODE ISLAN
[2]  
ANDERSON AL, 1995, P WORKSH MOD METH RI, P70
[3]  
*ASTM, 1994, ANN BOOK ASTM STAND, P275
[4]   Development of sedimentary strata in Eckernforde Bay, southwestern Baltic Sea [J].
Bentley, SJ ;
Nittrouer, CA ;
Sommerfield, CK .
GEO-MARINE LETTERS, 1996, 16 (03) :148-154
[5]  
CASAGRANDE A, 1936, P 1 INT C SOIL MECH, V3, P17
[6]   Benthic macrofauna and depth of bioturbation in Eckernforde Bay, southwestern Baltic Sea [J].
DAndrea, AF ;
Craig, NI ;
Lopez, GR .
GEO-MARINE LETTERS, 1996, 16 (03) :155-159
[7]  
FAAS RW, 1994, COASTAL BENTHIC BOUN, V1, P84
[8]  
Keller G.H., 1982, Geo-Marine Lett, V2, P191, DOI [10.1007/BF02462762, DOI 10.1007/BF02462762]
[9]   Bulk sediment properties interpreted in light of qualitative and quantitative microfabric analysis [J].
Lavoie, DM ;
Lavoie, DL ;
Pittenger, HA ;
Bennett, RH .
GEO-MARINE LETTERS, 1996, 16 (03) :226-231
[10]  
MARTENS CS, 1994, COATAL BENTHIC BOUND, V1, P119