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首页> 外文期刊>Australian Geomechanics >IN SITU DISSIPATION TESTING OF SOFT SOIL UNDER RECLAMATION FILLS
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IN SITU DISSIPATION TESTING OF SOFT SOIL UNDER RECLAMATION FILLS

机译：填海措施下软土原位耗散试验

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摘要

In situ dissipation tests provide a means of evaluating the in situ coefficient of consolidation and hydraulic conductivity of soft clays due to horizontal flow. Dissipation tests using 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 to compare the changes in the coefficient of consolidation and hydraulic conductivity due to horizontal flow prior to reclamation and after ground improvement. Tests were carried out in a Vertical Drain Area as well as in an adjacent untreated Control Area, 23 months after preloading for comparison purposes. The puipose of this research is to determine the consolidation parameters of soft soil before reclamation and after 23 months following preloading with and without vertical drains by means of in situ dissipation tests. This should indicate the change in these consolidation parameters associated with void ratio changes caused by the consolidation process under the same magnitude of load at different degrees of consolidation.
机译：原位耗散测试提供了一种评估软土水平流固结固结系数和水力传导率的方法。利用压电锥（CPTU），膨胀计（DMT），自镗压力计（SBPT）和BAT渗透计（BAT）进行的耗散测试用于表征新加坡樟宜某地的新加坡海洋黏土的水平固结系数和水平水力传导率填海工程。进行了耗散测试，以比较开垦前和地面改良后由于水平流动而引起的固结系数和水力传导率的变化。预加载后23个月，在垂直排水区以及相邻的未经处理的控制区中进行了测试，以进行比较。这项研究的目的是通过原位耗散测试来确定软土地基的填土参数，包括开垦前和预载后有无垂直排水的23个月后。这应表明这些固结参数的变化与在相同固结强度，不同固结程度下固结过程引起的空隙率变化有关。

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