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In situ pore water pressure dissipation testing of marine clay under reclamation fills

机译：填海填海下海相粘土原位孔隙水压力耗散试验

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In situ dissipation tests provide a means of evaluating the in situ coefficient of horizontal consolidation and horizontal hydraulic conductivity of soft clays. Dissipation tests by means of piezocone (CPTU), dilatometer (DMT), self-boring pressuremeter (SBPT) and BAT permeameter (BAT) were utilized in the characterization of the coefficient of horizontal consolidation and horizontal hydraulic conductivity of Singapore marine clay at Changi in a land reclamation project. Dissipation tests were carried out prior to reclamation as well as after ground improvement with vertical drains to compare the changes in the coefficient of horizontal consolidation and horizontal hydraulic conductivity prior to and after ground improvement. Tests were carried out in a vertical drain area as well as in an adjacent untreated control area after 23 months of surcharge loading, for comparison purposes. The purpose of this research is to determine the horizontal consolidation parameters of Singapore marine clay prior to reclamation as well as after 23 months of surcharge loading with and without vertical drains by means of in situ dissipation tests.
机译：原位耗散测试提供了一种评估软黏土水平固结系数和水平水力传导率的方法。利用压电锥（CPTU），膨胀计（DMT），自镗压力计（SBPT）和BAT渗透计（BAT）进行的耗散测试表征了樟宜新加坡海事粘土的水平固结系数和水平水力传导率。土地开垦项目。在开垦之前和垂直排水沟的地面改良之后进行了耗散测试，以比较地面改良前后水平固结系数和水平水力传导系数的变化。为进行比较，在附加载荷加载23个月后，在垂直排水区以及相邻的未经处理的对照区中进行了测试。这项研究的目的是通过原位耗散测试来确定新加坡海事粘土在填海之前以及在有垂直排水和无垂直排水的23个月附加荷载之后的水平固结参数。

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