摘要
依托云南省勐绿高速公路金扬河隧道右线进口段,对富水地层炭质页岩隧道三台阶法施工中的初期支护侵限问题进行分析研究,从变形控制、径向注浆加固、支护加强、钢架拆换、开挖方法优化等方面,针对性地采取处治措施,结合围岩变形监测,成功解决初期支护侵限问题并确保了施工安全。
Based on the entrance section of Jinyanghe Tunnel on the right line of Mengla-Lvchun Expressway in Yunnan Province,it analyzes and studies the initial support penetration during the three-step construction of carboniferous shale tunnel in water-rich stratum.Targeted treatment measures are taken from deformation control,radial grouting reinforcement,support strengthening,steel frame disassembly and replacement and excavation method optimization,and the problem of initial support penetration was solved successfully and the construction safety was ensured combined with the deformation monitoring of surrounding rock.
作者
靳连杰
JIN Lianjie(CREGC Fifth Engineering Company,Chengdu 610091,China)
出处
《路基工程》
2024年第3期222-228,共7页
Subgrade Engineering
关键词
富水地层
炭质页岩
地质预报
初期支护侵限
拱架拆换
注浆加固
监控量测
稳定性
water-rich stratum
carboniferous shale
geological forecast
initial support penetration
arch frame disassembly and replacement
grouting reinforcement
monitoring measurement
stability
