小净距立交隧道开挖围岩稳定性声发射监测  

Acoustic emission monitoring of surrounding rock of overpass tunnels with small clear spacing

作　　者：高崇霖[1,2] 刘宝许 王巍[1,2] 来兴平[2] 徐自立[2] 

机构地区：[1]中交隧道工程局有限公司,北京100081 [2]西安科技大学能源学院,陕西西安710054

出　　处：《西安科技大学学报》2009年第3期274-277,292,共5页Journal of Xi’an University of Science and Technology

基　　金：陕西省岩层控制重点实验室资助项目(04JS19)

摘　　要：终南山公路隧道2号通风竖井通风道施工过程中要跨越主隧道,为了预防爆破震动对终南山公路隧道耦合破坏效应的影响,确保主隧道围岩的稳定性与结构安全,采用声发射(acoustic emission,AE)技术对主隧道关键点进行了监测。根据监测结果,及时调整爆破参数,确保上跨隧道安全施工。The air chute of the 2nd ventilation shaft in Zhonguanshan highway tunnels will cross over main tunnels. Acoustic emission （AE） technology is used for monitoring at some keypoints of main tunnels in order to prevent the coupling breakage effects of blasting vibration and ensure the stability of surrounding rock and the safety of structure. According to the measured data, the blasting parameteres have been＇ adjusted in time. Thus guarantee the security of air chute construction.

关 键 词：小净距 隧道 立交 稳定性 声发射 

分 类 号：TD325.1[矿业工程—矿井建设]