CFG桩复合地基检测常见问题

CFG桩复合地基施工后需进行静载荷试验和低应变检测,以确定处理后的复合地基承载力是否满足设计要求和桩身的完整性.针对目前实际工程中CFG桩复合地基检测中存在荷载板刚度不够、褥垫层铺设不合理、最大加载压力偏小、低应变桩身完整性检验试验点选择不合理,以及多桩型复合地基检测方案不合理的问题进行了分析,并提出了相应的改进建议.

Common Problems in Testing of Cement Fly Ash Gravel Pile Composite Ground

Static loading test and low strain integrity test must be done after construction of cement fly ash gravel pile composite ground completely in order to confirm whether the bearing capacity of cement fly ash gravel pile composite foundation satisfies the requirement of design and whether the pile body is integrality.Some common problems in testing of cement fly ash gravel pile composite ground are analyzed according to present practical engineering,such as loading plate without enough rigidity,unreasonable paving cushion,relatively smaller maximum loading pressure,unreasonable selection of experimental points for pile body integrality test by low strain integrity test and unreasonable detecting schemes of multi-type-pile composite ground.The corresponding suggestions for improvement are put forward.