<FONT face=Verdana>深圳湾新吹填超软土固结系数的试验研究</FONT>

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Abstract Automatic pressure consolidometer is introduced to conduct numerous consolidation tests of hydraulic ultra-soft soil filling in Shenzhen Bay，and results are analyzed statistically and compared with coefficient of consolidation of original mud. The obtained results verify that：(1) In actual engineering，coefficient of consolidation is introduced to estimate the deformation and rate of consolidation of hydraulic mud filling approximately in special zone，which is confined within a statistical sample average curve in stress range(less than 100 kPa) and a logarithm function-width in stress range(more than 100 kPa). (2) Consolidation coefficient of hydraulic mud filling is less than original mud in a same zone，with an increase in consolidation pressure，the difference becomes small. It shows that hydraulic mud filling can be achieved a same drainage consolidation rate with original mud after it experiences surcharge preloading.

Key words： soil mechanics hydraulic fill ultra-soft soil coefficient of consolidation automatic pressure consolidation oedometer original mud consolidation pressure

Received: 03 April 2009

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http://www.rockmech.org/EN/ OR http://www.rockmech.org/EN/Y2010/V29/IS1/3157