摘要
以湖北省宣恩县木林溪隧道洞口高边坡为研究对象,在高边坡布置沉降变形监测点,完成了木林溪隧道掘进期间该高边坡的沉降变形观测。通过对该高边坡在不同掌子面施工期间的沉降变形数据进行分析,得到了木林溪隧道开挖施工对洞口高边坡稳定性的影响特征。结果表明:随着掌子面掘进,洞口高边坡出现沉降变形,但变形速率逐渐减小并在零值附近波动,边坡基本达到稳定状态,验证了锚喷支护措施的可靠性和开挖掘进方式的合理性。
Taking the high slope at the entrance of Mulinxi Tunnel in Xuan'en County,Hubei Province as the object,settlement and deformation monitoring points were arranged on high slopes,to complete the observation of settlement and deformation of the high slope during the excavation of the Mulinxi Tunnel.By analyzing the settlement and deformation data of the high slope during the construction of different palm faces,the impact characteristics of the excavation construction of Mulinxi Tunnel on the stability of the high slope at the entrance were obtained.The results show that with the excavation of the palm face,settlement deformation occurred on the high slope at the tunnel entrance,but the deformation rate gradually decreased and fluctuated around zero,and the slope basically reached a stable state.This verifies the reliability of the anchor spraying support measures and the rationality of the excavation method.
作者
张琳
陈晓艳
麻海法
ZHANG Lin;CHEN Xiaoyan;MA Haifa(Shaanxi Branch,Jiangxi Dongtong Transportation Technology Co.,Ltd.,Xianyang,Shaanxi Province,712000 China)
出处
《科技资讯》
2025年第9期109-112,共4页
Science & Technology Information
关键词
高边坡
稳定性
监测分析
隧道施工
掌子面
High slope
Stability
Monitoring analysis
Tunnel construction
Palm face
