首页|A continuous and long-term in-situ stress measuring method based on fiber optic.Part Ⅰ:Theory of inverse differential strain analysis
A continuous and long-term in-situ stress measuring method based on fiber optic.Part Ⅰ:Theory of inverse differential strain analysis
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
A method for in-situ stress measurement via fiber optics was proposed.The method utilizes the rela-tionship between rock mass elastic parameters and in-situ stress.The approach offers the advantage of long-term stress measurements with high spatial resolution and frequency,significantly enhancing the ability to measure in-situ stress.The sensing casing,spirally wrapped with fiber optic,is cemented into the formation to establish a formation sensing nerve.Injecting fluid into the casing generates strain disturbance,establishing the relationship between rock mass properties and treatment pressure.Moreover,an optimization algorithm is established to invert the elastic parameters of formation via fiber optic strains.In the first part of this paper series,we established the theoretical basis for the inverse differential strain analysis method for in-situ stress measurement,which was subsequently verified using an analytical model.This paper is the fundamental basis for the inverse differential strain analysis method.
NETL
NSTL
万方数据
