摘要
运用数学方法统计分析IV级和V级围岩隧道的监控量测数据,提出了围岩稳定性评价指标,包括围岩位移的速率指标和累计位移值指标。提出的评价指标可为隧道施工阶段支护方案的优化和围岩稳定性评价提供参考依据,并为同类隧道施工提出预警标准,防止安全事故的发生。
In this paper,mathematical methods are used to statistically analyze displacement monitoring data during the construction of Grade IV and V surrounding tunnels,and the evaluation index of surrounding rock stabilityis put forward based on the cumulative value of displacement and displacement rate of surrounding rock.It can provide reference for stability evaluation of surrounding rock and optimization of supporting schemes during tunnel construction,and propose early warning standards for the construction of similar tunnels to prevent accident.
作者
周俊磊
ZHOU Junlei(Wujiu Railway Passenger Line Hubei Co., Ltd., Wuhan 430034, China)
出处
《交通科技》
2018年第6期110-113,共4页
Transportation Science & Technology
关键词
隧道
围岩稳定性
评价指标
预警
tunnel
surrounding rock stability
evaluation indexes
early warning
