| CFG端承桩复合地基承载特性试验研究 |
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| 引用本文： | 常聚友,龚兴耀.CFG端承桩复合地基承载特性试验研究[J].路基工程,2013,0(1):117-119. |
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| 作者姓名： | 常聚友 龚兴耀 |
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| 作者单位： | 中铁二院工程集团有限责任公司，成都 610031 |
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| 摘 要： | 对于高速铁路路基CFG桩端置于较完整石灰岩顶面，桩侧为硬塑粉质粘土的端承桩，通过最大荷载为设计荷载1.25倍、2.00倍的对比复合地基承载特性试验，并经计算分析认为:最大荷载为设计荷载1.25倍的最大回弹量对应沉降量荷载与摩阻力之和，为该端承桩复合地基承载力特征值。
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| 关 键 词： | CFG端承桩 最大回弹量 沉降量 设计荷载 最大荷载 弹性阶段 特征值 |
| 收稿时间： | 2019-11-07 |
Experimental Study on Bearing Characteristics of CFG End-beating Pile Composite Foundation |
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| Authors: | CHANG Juyou GONG Xingyao |
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| Abstract: | Against the end-bearing pile at high-sped railway subgrade，in respect of which CFG pile end is positioned on a relatively complete limestone top surface and the pile side is hard plastic silty clay，the tests of composite foundation’s bearing characteristics with the maximum load being 1.25 or 2.00 times the design load are carried out.Through calculation and analysis，we consider that where the maximum load is 1.25 times the design load，the maximum resilient modulus corresponds to the sum of settlement load and frictional resistance，which is the characteristic value of the bearing capacity of the end-bearing pile composite foundation. |
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