| 碎石桩加固油罐软基的试验研究 |
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| 引用本文： | 杨振甲,齐鹏,王士杰.碎石桩加固油罐软基的试验研究[J].河北农业大学学报,2010,33(2). |
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| 作者姓名： | 杨振甲 齐鹏 王士杰 |
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| 作者单位： | 1. 河北农业大学,城乡建设学院,河北,保定,071001
2. 河北建设集团,河北,保定,071000 |
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| 摘 要： | 采用振动沉管碎石桩对2个大型原油罐的沿海软弱地基进行了处理。结果表明:碎石桩对砂质粘性土层的压缩性降低较为显著,而对粉质黏土层的压缩性降低作用不大;复合地基的桩土应力比在2~3之间变化;在碎石桩处理深度范围内,处理后桩间土的标贯击数可提高至原天然土层的1.5倍以上;处理后的复合地基承载力特征值较天然地基提高2.3倍以上。
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| 关 键 词： | 碎石桩 软弱地基 加固效果 |
Experimental study on soft foundation of gravel pile reinforced oil tanks |
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| YANG Zhen-jia,QI Peng,WANG Shi-jie.Experimental study on soft foundation of gravel pile reinforced oil tanks[J].Journal of Agricultural University of Hebei,2010,33(2). |
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| Authors: | YANG Zhen-jia QI Peng WANG Shi-jie |
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| Institution: | 1.College of Urban Construction;Agricultural University of Hebei;Baoding 071001;China;2.Hebei Construction Group Co.Ltd.;Baoding 071000;China |
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| Abstract: | The soft foundation of two oil tank was treated by vibration sinking gravel piles.The results show that the compression of sandy viscous soil decreased significantly but the effect was not noticeable for silt clay.In addition,the pile-soil stress ratio of composite foundation varied between the range of 2-3.The SPT blow count of soil between piles after processing rose to more than 1.5 times of natural clay and the characteristic value of composite foundation bearing capacity increased by more than 2.3 time... |
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| Keywords: | gravel pile soft foundation strengthening effect |
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