| 塑料排水板工法中的粘土固结系数的评价方法 |
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| 引用本文： | 张得煊.塑料排水板工法中的粘土固结系数的评价方法[J].地质与勘探,2003,39(Z2):231-234. |
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| 作者姓名： | 张得煊 |
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| 作者单位： | 上海交通大学建筑工程学院,上海,200030 |
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| 摘 要： | 塑料板排水工法广泛应用于软地基处理的工程中,在这种工法中如何评价粘土的固结系数,关系到最终沉降量的预测、工程费用的计算等重要问题.本研究用现场试验的方法,在吹填软粘土中打设了3种不同间距的塑料排水板,对分层沉降量进行了监测,并相应地用差分法对沉降量进行了数值预测.探讨了塑料排水板的间距对粘土固结系数的影响效果.
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| 关 键 词： | 软粘土 塑料板排水工法 固结系数 打设间距 Reclaimed ground prefabricated vertical drain coefficient of consolidation drain spacing |
EVALUATION OF COEFFICIENT OF CONSOLIDATION ON THE PREFABRICATED VERTICAL DRAIN METHOD |
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| Abstract.EVALUATION OF COEFFICIENT OF CONSOLIDATION ON THE PREFABRICATED VERTICAL DRAIN METHOD[J].Geology and Prospecting,2003,39(Z2):231-234. |
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| Authors: | Abstract |
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| Abstract: | In the analysis of consolidation of soft ground improved by means of prefabricated vertical drain(PD); horizontal consolidation of coefficient (ch) is one of the important parameters. There are many labora-tory tests conceming on this problem. In addition, some measurement -based analysis had been carried out aswell. However, the ch used to the PD method is still unsolved by these studies. Therefore, a series of field testswas conducted on an observation site of reclaimed ground. By changing the interval of drain spacing while keep-ing the loading and soil condition approximately same, the consolidation settlements of the reclaimed groundwere measured. Based on the observed results and numerical analysis results, this paper examines ch of re-claimed ground. And then, the effectiveness and the cost of ground improvement were examined from bothdrains spacing and pre -loading. |
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| Keywords: | Reclaimed ground prefabricated vertical drain coefficient of consolidation drain spacing |
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