摘要
依据隧道开挖施工过程中洞身可能存在的变形失稳形式,通过合理布设测点采用监控量测的方式,分析研究了所采集到的隧道开挖过程中洞身周边收敛和拱顶沉降数据,有效预测开挖后围岩动态变化过程。根据数据分析发现隧道施工初期支护发生侵限,及时做出了相应的工程处置措施并调整了初支支护参数,为后续施工提供技术参考,确保施工人员及主体结构安全。
The data of convergence around the tunnel body and arch crown settlement during the excavation is analyzed and studied by reasonably arranging the measuring points and adopting the method of monitoring measurement,according to the possible deformation and instability of tunnel body in the process of tunnel excavation,so as to effectively predict the dynamic change process of surrounding rock after excavation.It is found that the initial support of tunnel construction is in violation of the limit according to the data analysis,and the corresponding engineering treatment measures are taken timely and the initial support parameters are adjusted to provide technical reference for the subsequent construction and ensure the safety of construction personnel and main structure.
作者
彭泽乾
彭川
PENG Zeqian;PENG Chuan(Shanxi Provincial Communication Construction Group,Xian 710075,China;China Southwest Architectural Design And Research Institute Co.,Ltd,Chongqing 400020,China)
出处
《安徽工程大学学报》
CAS
2020年第4期74-79,共6页
Journal of Anhui Polytechnic University
关键词
围岩变形
监控量测
周边收敛
拱顶沉降
surrounding rock deformation
monitoring measurement
peripheral convergence
crown settlement
