通渝隧道Kaiser效应地应力测试研究  

Geostress measurement of Kaiser effect in Tongyu highway tunnel

作　　者：徐林生[1] 

机构地区：[1]重庆交通学院土木建筑学院,重庆400074

出　　处：《重庆交通学院学报》2006年第2期25-27,共3页Journal of Chongqing Jiaotong University

摘　　要：通过5组岩石声发射Kaiser效应地应力的测试,查明了通渝深埋特长公路隧道工程岩体内地应力的总体状态为潜在走滑型,隧道中部测得的地应力量级普遍较高,实测最大主应力σ1最高达33.04MPa,因而施工过程中应密切关注其高地应力与岩爆问题.Through geostress measurement by Kaiser effect method, it is found out that the general space stress state ofrockmass in deeply-lying and especially long Tongyu highway tunnel belongs to the potential strike-slip type. The measured geostresses in the middle part of the tunnel are generally very large with the o σ major principal stress of 33.04 MPa. So during the construction process, the problems of high geostress and rockburst have to be taken into account.

关 键 词：隧道 地应力 KAISER效应 

分 类 号：U451.5[建筑科学—桥梁与隧道工程]