论文部分内容阅读
依据强夯-排水板联合加固机理,结合具体工程项目针对长江中下游河漫滩吹填地基特点进行了插塑料排水板和不插塑料排水板两种情况在不同能级下的强夯试验。通过试验对超孔隙水压力、夯击次数、夯沉量、CPT值和地基承载力特征值等进行分析研究,得到了强夯处理该类地基的一系列参数,据此对原设计方案进行了补充和优化,并在原料场地基处理中予以应用。工程实践表明,通过强夯-排水板联合处理后的河漫滩吹填地基可以满足料场初期堆料要求,并为后期贮矿管理实现最终堆料目标提供保障,是一种既科学经济又切实可行的地基处理方法。
According to the combination of dynamic compaction and drainage plate, the dynamic compaction test under different energy levels of plastic drainage board and plastic drainage board was carried out according to the characteristics of the foundation of the floodplain in the middle and lower reaches of the Yangtze River. The characteristics of excess pore water pressure, number of tampers, tamper volume, CPT value and bearing capacity of foundation are analyzed and studied. A series of parameters of dynamic compaction for such foundation are obtained. Based on this, Replenished and optimized, and applied in the processing of raw material bases. The engineering practice shows that the foundation filling of the river floodplain through the combination of dynamic compaction and drainage can meet the initial stacking requirements of the stock yard and provide the guarantee for the final stacking of the ore storage management in the late period. It is a scientific and economical way to be practicable Foundation treatment method.