| 贯穿含深厚建筑垃圾土地基的预应力管桩承载力特性 |
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| 引用本文： | 崔振清,赵岗飞,张孟喜,杨德生,王蛟洋. 贯穿含深厚建筑垃圾土地基的预应力管桩承载力特性[J]. 上海交通大学学报, 2011, 0(Z1) |
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| 作者姓名： | 崔振清 赵岗飞 张孟喜 杨德生 王蛟洋 |
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| 作者单位： | 山西潞安矿业集团有限责任公司;上海大学土木工程系; |
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| 摘 要： | 通过对表面粘贴应变片的管桩进行静载试验,分析沿轴向的管桩轴力及侧摩擦阻力的变化情况.结果表明:在竖向荷载作用下,桩身轴力沿深度方向呈现出倒三角的分布特征,其数值沿深度方向而逐渐减小;在含建筑垃圾土的土层中,管桩轴力随着深度的增加而快速降低,进入粉质黏土层后,其降幅较深层含建筑垃圾土的土层减缓;随着压桩力增加,管桩侧摩擦阻力逐渐增大,但其增幅减缓而最终达到极限值;浅层土与管桩之间的摩擦阻力较小,随着深度增加,摩擦阻力迅速增大;粉质黏土层与管桩之间的侧摩擦阻力小于底层含建筑垃圾土土层.
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| 关 键 词： | 含建筑垃圾土 预应力混凝土 管桩 承载力 |
Bearing Capacity of Pre-stressed Pipe Pile in Soil with Construction Waste |
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| CUI Zhen-qing,ZHAO Gang-fei,,ZHANG Meng-xi,YANG De-sheng,WANG Jiao-yang. Bearing Capacity of Pre-stressed Pipe Pile in Soil with Construction Waste[J]. Journal of Shanghai Jiaotong University, 2011, 0(Z1) |
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| Authors: | CUI Zhen-qing ZHAO Gang-fei ZHANG Meng-xi YANG De-sheng WANG Jiao-yang |
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| Affiliation: | CUI Zhen-qing1,ZHAO Gang-fei1,2,ZHANG Meng-xi2,YANG De-sheng2,WANG Jiao-yang2(1.Shanxi Lu'an Group,Shanxi Changzhi 046000,China,2.Department of Civil Engineering,Shanghai University,Shanghai 200072,China) |
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| Abstract: | Pre-stressed concrete pipe pile is widely used today.In the technical code for building pile foundation,construction waste is classified as miscellaneous fill with low frictional resistance value,but in practice,its bearing capacity is much larger than that from the code.Strain gauges were pasted on a pile for static load test to determine the axial force and skin friction changing along pile axis.The results show that,skin friction of pipe pile grows with the top load,its value in soil with construction wa... |
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| Keywords: | soil with construction waste pre-stressed pipe pile bearing capacity |
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