利用载荷试验研究了CFG桩桩顶的中粗砂、砾砂、碎石褥垫层的桩上应力比。
The stress ratio of CFG pile and soil which cushion used medium-coarse sand gravelly sand or cobbles has been studied.
CFG桩是水泥粉煤灰碎石桩的简称，它是由水泥、粉煤灰、碎石、石屑和砂加水拌合形成的高粘结强度桩，和桩间土、褥垫层一起形成复合地基。
CFG pile is short for the cement fly-ash gravel pile, which is mixed to a high bond strength pile with sand and water. CFG pile composite is formed by CFG pile, the soil between piles and cushion.
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