基于蛙跳PSO-Richards模型的地表沉降动态预计
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摘要
基于地表沉降变形规律和实际情况,分析预计地表沉降动态演化全过程的时间函数应具有的特征。针对采动区地表沉降Richards模型参数选取较为复杂的问题,引入蛙跳PSO算法思想,提出采动区地表沉降动态预计的蛙跳PSO-Richards模型。工程实例分析表明,蛙跳PSO-Richards模型符合理想时间函数特征,能够较好地预计采动区地表动态沉降全过程,具有较好的适用性。
Based on the law of ground subsidence deformation and the actual situation,the characteristics of the time function of the whole process of predicting the dynamic evolution of surface subsidence are analyzed.In view of the complex problem of selecting the parameters of Richards model of ground subsidence in mining area,introduces the idea of leapfrog PSO algorithm,and puts forward a leapfrog PSO-Richards model for dynamic prediction of ground subsidence in mining area.The leapfrog PSORichards model accords with the characteristics of ideal time function,can better predict the whole process of dynamic surface subsidence in mining area,has better applicability.
Based on the law of ground subsidence deformation and the actual situation,the characteristics of the time function of the whole process of predicting the dynamic evolution of surface subsidence are analyzed.In view of the complex problem of selecting the parameters of Richards model of ground subsidence in mining area,introduces the idea of leapfrog PSO algorithm,and puts forward a leapfrog PSO-Richards model for dynamic prediction of ground subsidence in mining area.The leapfrog PSORichards model accords with the characteristics of ideal time function,can better predict the whole process of dynamic surface subsidence in mining area,has better applicability.
引文
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[4]孙闯,徐乃忠,刘义新,等.基于双因素时间函数的松散地层条件下地表点动态沉降预计[J].岩土力学,2017,38(3):821-826,865.
[5]刘玉成,曹树刚,刘延保.可描述地表沉陷动态过程的时间函数模型探讨[J].岩土力学,2010,31(3):925-931.
[6]黄太安,生佳根,徐红洋,等.一种改进的简化粒子群算法[J].计算机仿真,2013,30(2):327-330,335.
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