| 饱和土中单桩融沉附加力的试验研究 |
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| 引用本文： | 付厚利.饱和土中单桩融沉附加力的试验研究[J].岩土力学,2004,25(9):1447-1450. |
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| 作者姓名： | 付厚利 |
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| 作者单位： | 山东科技大学,土木建筑学院,山东,青岛,266510 |
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| 摘 要： | 为探讨人工冻结法施工不稳定含水表土层地下工程中的冻融灾害，通过物理模拟试验，研究了饱和土冻融过程中土层的融沉规律、土层对单桩产生的竖向融沉附加力变化规律，分析了土层性质及主要冻结参数对附加力的影响。研究表明，饱和冻土在融沉初期会产生明显的热胀效应：粘土、砂质粘土的融化固结速度明显低于砂土：最大融沉负摩擦力达3.012kPa：砂土的最大负摩擦力分别是粘土、砂质粘土的1.34和2.25倍：饱和冻土融沉的过程能对桩产生明显的工程灾害效应。
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| 关 键 词： | 饱和土 冻土 融沉 桩 附加力 试验研究 |
| 文章编号： | 1000-7598-(2004)09-1447-04 |
| 修稿时间： | 2003年5月19日 |
Experimental research of the additional melting force on single pile in saturated soil |
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| FU Hou-li.Experimental research of the additional melting force on single pile in saturated soil[J].Rock and Soil Mechanics,2004,25(9):1447-1450. |
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| Authors: | FU Hou-li |
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| Abstract: | In view of the exploration of freeze and thaw calamity during the construction of artificial freeze method in unstable water-bearing stratum. The melting and sinking principle of saturated soil and the variation principle of vertical melting additional load on the single pile are studied by experimental method. The soil property and the effects of main freezing parameters on the additional load are analyzed. The thermal expansion effect is obvious in initial stage of thaw; and the thawing speed of clay is higher than sand soil; the maximum of thaw vertical additional force is 3.012 kPa; the maximum additional force of sand soil is 1.34 and 2.25 times the clay; the engineering calamity to pile in frozen soil during the thaw-subsidence is obvious. |
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| Keywords: | saturated soil frozen soil melting pile additional force experimental research |
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