大断面浅埋黄土隧道锚杆轴力差异分析  

Analysis of Difference in Axial Force of Anchor in Loess Tunnel with Large Cross-Section

作　　者：宿钟鸣[1] 孙志杰[1] 王晓峰[1] 

机构地区：[1]山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室,山西太原030006

出　　处：《重庆交通大学学报（自然科学版）》2012年第4期769-771,共3页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：山西省交通建设科技项目(11-2-18)

摘　　要：以郑西铁路客运专线上的贺家庄隧道为例,研究了大断面黄土隧道中系统锚杆的受力状况,得出了拱部和边墙锚杆的受力特点,从径向位移的衰减规律和围岩压力分布形式两个角度分析了系统锚杆受力差异较大的原因,相关研究结论对黄土隧道的设计和施工具有参考价值和指导意义。Based on the Hejiazhuang tunnel on the Zhengzhou-Xi'an passenger dedicated railway,forcing cases of systematic anchor was studied in loess tunnel with large cross-section and forcing characteristics of systematic anchor at vault and sidewall parts were obtained;reasons why the forcing difference varies much were analyzed from the perspective of the law of radial displacement attenuation and distribution form of surrounding rock pressure;the related conclusions will offer reference value and guiding significance to the design and construction of such tunnels.

关 键 词：大断面黄土隧道 系统锚杆 径向位移衰减 围岩压力分布 

分 类 号：U45[建筑科学—桥梁与隧道工程]