Analysis of Consolidation Processing of Piezocone Penetration Test in Cutoff Wall
The piezocone penetration test (CPTU) is now widely used as an efficient and economical in-situ geotechnical investigation technology. The CPTU not only can provide the data of conventional cone penetration test (CPT), but also give a continuous profile of pore pressure. Furthermore, when the piezocone is halted in soil with a specific depth, the excess pore pressure produced by penetration will be dissipated until the value of zero. This paper investigates the consolidation processing after the piezocone is penetrated into soil-bentonite cutoff wall in a landfill site, China. A finite-element procedure is also used for simulating the consolidating processing of soil-bentonite backfills. The coefficient of consolidation and hydraulic conductivity of soil-bentonite backfills can be evaluated from the consolidation processing of excess pore pressure. The paper gives the necessity and importance of simulation of consolidation processing by finite-element procedure.
KeywordsSoil-bentonite Consolidation processing CPTU Finite-element procedure
Majority of the work presented in this paper was supported by the following supporting funds Organization: The National Natural Science Foundation of China (Grant No. 41672294) and The Foundation of Jiangsu Province Outstanding Youth (Grant No. BK20140027). We deeply appreciate your consideration of our manuscript, and we look forward to receiving comments from the reviewers.
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