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由于施工方便,经济效益显著,充灌袋被广泛应用于农业灌溉水渠、地基加固、建筑物纠偏、近海堤坝等工程建设中。该文基于充灌袋的受力特性进行分析,编制程序计算得到充灌袋几何参数,尤其是充灌高度与充灌压力的关系。通过计算不同工况的结果拟合出关系曲线,并采用现场试验加以验证。利用PFC2D对一侧有水的充灌袋进行稳定性分析计算,得到临界挡水高度与充灌压力的关系,并与该充灌压力下充灌袋高度进行对比,分析充灌袋的失稳形式,为充灌袋工程设计及确定挡水高度提供参考。
Due to the convenient construction and obvious economic benefits, the filling bags are widely used in agricultural irrigation canals, foundation reinforcement, building correction, offshore dykes and other construction projects. In this paper, based on the analysis of the force characteristics of the filling bag, the geometric parameters of the filling bag are calculated by programming, especially the relationship between filling height and filling pressure. The relationship curve was fitted by calculating the results of different working conditions and verified by field test. Using PFC2D to analyze the stability of filling bags with water on one side, the relationship between the critical height and filling pressure was obtained, and the filling bags were compared with the filling pressure to analyze the instability Form, for filling bag engineering design and determine the height of water to provide a reference.