三峡地下厂房区地应力场反演分析  

Inverse Analysis on Geostatic Stress Field in Underground Station of Three Gorges Project

作　　者：张贵庆[1] 

机构地区：[1]山西省水利水电勘测设计研究院,山西太原030024

出　　处：《水利与建筑工程学报》2011年第4期66-71,共6页Journal of Water Resources and Architectural Engineering

摘　　要：对传统的地应力反演分析方法进行了优缺点的总结。在此基础上,提出了基于区域构造应变的地应力回归分析方法,从理论上,避免了传统方法的缺点。利用传统边界应力回归分析方法和本文方法分别计算了三峡地下厂房区地应力,对比结果表明,本文计算方法所得结果整体精度高于传统方法;计算的稳定性和收敛速度也高于传统方法。建议在以后的地应力反演分析中可参考本文基于区域构造应变的地应力回归分析方法。Based on the summary of the advantage and disadvantage of the existing conventional inverse analysis method for geostatic stress,the regression analysis method for geostatic stress is proposed here by using regional tectonic strain to overcome the shortage of conventional one from theory.At the same time,the geostatic stress field in the underground station of the Three Gorges Project is calculated by using the two methods respectively.The calculation result shows that the later method is better than the traditional one in the aspects of precision,convergence speed and stability of calculation.It is recommended that the presented method for inverse analysis of geostatic stress will be applied in the later underground engineerings.

关 键 词：地下厂房 地应力 边界应力 区域构造应变 地应力回归分析方法 

分 类 号：TV731.6[水利工程—水利水电工程]