一种多属性三维地质模型的快速建模方法及在高地应力隧道中的应用  

FAST MODELING METHOD OF MULTI-ATTRIBUTE 3D GEOLOGICAL MODEL AND APPLICATION IN HIGH GEOSTRESS TUNNEL

作　　者：程曦文 李天斌[1,2] 马春驰[1,2] 韩瑀萱 曾鹏 黄解放 邓科 张彧轩 CHENG Xiwen;LI Tianbin;MA Chunchi;HAN Yuxuan;ZENG Peng;HUANG Jiefang;DENG Ke;ZHANG Yuxuan(College of Environment and Civil Engineering,Chengdu University of Technology,Chengdu 610059,China;State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China;Sichuan Shudao New System Rail Group Co.,Ltd.,Chengdu 610041,China;CCCC First Highway Engineering Group Co,Ltd.,Beijing 100024,China)

机构地区：[1]成都理工大学环境与土木工程学院,成都610059 [2]地质灾害防治与地质环境保护国家重点实验室(成都理工大学),成都610059 [3]四川蜀道新制式轨道集团有限责任公司,成都610041 [4]中交一公局集团有限公司,北京100024

出　　处：《工程地质学报》2023年第3期959-967,共9页Journal of Engineering Geology

摘　　要：为了解决传统三维地质建模方法对复杂地质条件场地的建模效率低的问题,基于指示克里金法(indicator kriging)实现复杂地质条件下的三维地质模型的快速构建,以及空间中岩性分布的准确表征;通过二次开发,实现复杂地质情况下三维表观模型与数值模型的融合。以围岩分级修正与高地应力隧道岩爆灾害预测为例,开展三维地质模型的属性分析。最后,结合地应力属性模型与开挖计算得到的隧道围岩应力分布情况实现对某隧道岩爆发生区域、等级的工程预测分析。结果表明,该隧道通过硬岩段易发生中等至强烈岩爆。In order to raise the efficiency of 3D geological modeling method on complex geological conditions,based on Indicator Kriging,this paper realized the fast construction of 3D geological model under complex geological conditions.Through the 3D geological model,the lithology distribution in space can be accurately characterized.By secondary development,the integration of 3D geological model and numerical model under complex geological conditions is realized.Taking the prediction of rockburst disaster in tunnel with high geostress and surrounding rock classification modification as examples,the attribute analysis of 3D geological model is carried out.Finally,combined with the geostress attribute model and the stress distribution of tunnel surrounding rock obtained from excavation simulation,the grade and area of rock burst in a tunnel are analyzed.The results show that medium to strong rockburst may occur when the tunnel crosses through hard rock.

关 键 词：指示克里金 三维地质模型 多元属性 隧道工程 

分 类 号：P642[天文地球—工程地质学]