真空降水联合低能量强夯加固吹填土路基

结合上海某临港新城大面积吹填土地基处理工程,试验研究了真空降水联合低能量强夯加固大面积吹填土路基问题,对加固过程中及加固后的地下水位变化、超静孔压变化、工艺参数、以及加固机理进行了分析和讨论。在此基础上确定了大面积施工的参数和工艺。真空降水联合低能量强夯的技术进一步拓宽了井点降水和强夯法的适用范围,为我国沿海地区工程建设中遇到的大面积吹填土加固问题提供了新的途径。

To Strongly Ramp Consolidated Barged-in Fill Subgrade by Vacuum Dewatering with Low Energy

In combination with the barged-in fill subgrade treatment project with large area in a certain new town overlooking the harbor in Shanghai City, the paper tests and studies on the problem of strongly ramping consolidated barged-in subgrade with large area by vacuum dewatering with low energy. It also analyzes and discusses the change of underwater level in the course of consolidation and after the consolidation, the charge of static orifice pressure, process parameter and the consolidation mechanism. On this basis the parameter and process of the construction with large area are determined. The technology of strongly ramping by vacuum dewatering with low energy further widens the applicable range of well-point dewatering and strong ramping method to provide a new way for the problem of barged-in fill consolidation with large area encountered in the construction of projects in China coast areas.