盾构施工临近建筑物变形影响因素关联性分析

基于大量工程实践和资料对建筑物变形安全影响因素进行分析,基于实际数据样本利用粒子群和支持向量机算法,得到影响因素与建筑物变形特征之间的关联模型,并对模型进行验证,利用蒙特卡洛模拟算法仿真模拟得到大量仿真样本,利用卡方关联分析方法和灰色关联算法对各影响因素的关联度进行挖掘,了解各个影响因素与建筑物变形特征之间的关联性程度,进一步得出需要重点控制的建筑物变形的关联影响因素,为临近建筑物的保护控制提供决策参考。

Correlation Analysis of Influence Factors of Building Deformation near the Shield Construction

This article analyzes the influence factors relating to building deformation based on engineering practices and information. The particle swarm algorithm and support vector machine( SVM) are used to obtain the correlation model between influence factors and deformation characteristics and the model is verified. Finally,the related model simulation samples are obtained by means of Monte Carlo Simulation Algorithm Simulation to define the degree of the correlation between each influence factor and building deformation with chi-square correlation analysis method and gray correlation algorithm.