滑坡物理模拟畸变修正方法研究及应用  

The rescarch and application of distortion correction method to landslide physical simulation

作　　者：杜潇翔[1] 

机构地区：[1]成都理工大学环境与土木工程学院,成都610059

出　　处：《长春工程学院学报（自然科学版）》2013年第1期15-18,22,共5页Journal of Changchun Institute of Technology：Natural Sciences Edition

摘　　要：由于相似理论中的相似系数无法完全得到满足,滑坡物理模拟试验采集的位移、土压力、孔隙水压力等试验数据与现实情况存在偏差,即为产生了畸变。介绍了畸变产生的原因及修正的方法,并结合工程实例,采用数值分析的修正方法,对三峡四方碑滑坡物理模拟试验进行了畸变修正,经过试验数据、修正数据和滑坡现场监测数据的分析对比,证明了经畸变修正后的模型计算数据更接近现场实际监测数据,更能反映滑坡真实情况。证明了畸变修正理论的可行性及畸变修正理论对滑坡物理模拟试验的重要性。The similarity factor in similarity theory can＇t be satisfied fully,the so some experimental data related to displacement,soil pressure,pore water pressure collected in the landslide physical simulation test exist deviation to the fact,that is the occurrence of distortion.In this paper,the author introduces the reason of distortion and the method of distortion correction.Combining with some engineering examples,the author makes the distortion correction to physical simulation of Sifangbei Landslide in Three Gorges.By using the numerical analysis to testing data,correcting data and on-site monitoring data,it turns out that the correcting data is more closed to the on-site monitoring data,and can reflect the situation of landslide more really.Then,it turns out that the method of distortion correction is viable and important to landslide physical simulation.

关 键 词：滑坡 物理模拟 相似理论 畸变修正 

分 类 号：P631.2[天文地球—地质矿产勘探]