滇中引水工程红层软岩剪切流变特性试验研究  

Experimental Study on Shear Rheological Properties of Red-bed Soft Rock in Central YunnanWater Diversion Project

作　　者：段志远 陈进辉 白智旭 李飞 Duan Zhi-yuan;Chen Jin-hui;Bai Zhi-xu;Li Fei(China Power Construction Group Kunming Survey,Design and Research Institute Co.,Ltd.,Kunming Yunnan 650000,China;Chuxiong Branch of Central Yunnan Water Diversion Engineering Construction and Management Bureau,Kunming Yunnan 650000,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650000 [2]滇中引水工程建管局楚雄分局,云南昆明650000

出　　处：《西部探矿工程》2023年第3期12-15,23,共5页West-China Exploration Engineering

摘　　要：软岩是滇中引水工程经常遇到的岩体,其抗压强度低,具有明显的流变特性,蠕变变形量大,容易引起隧道的失稳与破坏。通过试验,对其剪切流变性进行研究,经过模型辨识,认为红层软岩流变符合伯格斯模型,结合已有流变实验进行综合分析,得出“滇中红层”软岩的流变参数,用于指导工程建设。Soft rock is often encountered in the water diversion project in central Yunnan.Its low compressive strength,obvious rheological properties,and large creep deformation are easy to cause tunnel instability and damage.Through the study of its shear rheology and model identification,it is believed that the rheology of red-bed soft rock conforms to Burgess model.Based on the com-prehensive analysis of the existing rheological experiments,we have obtained the rheological parameters of the"red bed"soft rock in central Yunnan,which can be used to guide the engineering con-struction.

关 键 词：滇中红层 流变特性 蠕变 伯格斯模型 

分 类 号：P64[天文地球—地质矿产勘探]