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本文以广东华夏阳西火电厂主厂房地基加固工程试夯实例,阐述了填海区域内强夯施工的应用,通过试验、检测、分析,揭示了海域回填软土地基加固的机理。为满足地基承载力和变形模量的设计要求;掌握孔隙水压力消散时间和潮水对强夯施工的影响:调整和确定强夯施工参数:夯击击数、夯击能量、影响深度、场地沉降量等。通过有代表性的选择试夯区,进行试夯作业、检测与研究,最终获得基本参数,以指导大面积强夯施工。
In this paper, an example of dynamic compaction of ground strengthening works in the main plant of Huaxia Yangxi Thermal Power Plant in Guangdong Province is elaborated. The application of dynamic compaction in the reclamation area is expounded. The mechanism of soft soil foundation consolidation in sea area is revealed through tests, inspections and analyzes. In order to meet the design requirements of bearing capacity and deformation modulus of foundations; To master the impact of pore water pressure dissipation time and tide on the construction of dynamic compaction: To adjust and determine the dynamic compaction construction parameters: impact number, impact energy, impact depth, Volume and so on. Through the representative selection of the test area, trial ramming operation, testing and research, and ultimately obtain the basic parameters in order to guide large-scale dynamic compaction construction.