科技创新与应用2024，Vol.14Issue(36)：139-144,6.DOI:10.19981/j.CN23-1581/G3.2024.36.032
考虑土性空间变异特征的智能地层划分方法
孙晋晶 1许联 1黄亚楠 2李甜甜 2申志福 2高洪梅 2王志华2
作者信息
- 1. 江苏省地质局第三地质大队,江苏 镇江 212001
- 2. 南京工业大学 城市地下空间研究中心,南京 211816
- 折叠
摘要
Abstract
Geotechnical parameters in the same soil layer will change with the change of location.There is a certain degree of correlation within a certain distance.This correlation will attenuate with the increase of distance until it is irrelevant.Stratum division is an important part of geotechnical engineering survey and design.The spatial correlation of soil properties should be considered in stratum division,and it is necessary to improve the intelligence level of stratum division.This study developed a set of intelligent stratigraphic classification methods that can"naturally"consider the spatial variation characteristics of soil properties.First,the spatial variability characteristics of geotechnical engineering survey data of a certain site are analyzed,and a random field example is generated based on this to build a"complete stratum"model;Six hole static penetration simulations were carried out on the constructed stratum model.Based on the static penetration results,data expansion based on Bayesian compressive sensing and intelligent stratum classification based on support vector machines,Gaussian models and hidden Markov random fields were demonstrated.The classification results were compared with the"complete stratum"model to demonstrate the accuracy of the stratum classification method.关键词
土性变异性/地层划分/相关距离/随机场理论/静力触探Key words
soil variability/stratum division/correlation distance/random field theory/static sounding分类
建筑与水利引用本文复制引用
孙晋晶,许联,黄亚楠,李甜甜,申志福,高洪梅,王志华..考虑土性空间变异特征的智能地层划分方法[J].科技创新与应用,2024,14(36):139-144,6.
