TBM隧道岩石可掘性评价指标及其应用研究综述
A Review of Rock Boreability Evaluation Index and Its Application in TBM Tunnel Construction
李子琛 1朱杰兵 1张宜虎 1汪斌 1徐栋栋1
作者信息
- 1. 长江水利委员会长江科学院水利部岩土力学与工程重点实验室,武汉 430010
- 折叠
摘要
TBM(Tunnel Boring Machine)掘进施工成本中,刀具的磨损占比很高,这通常是由于TBM的刀具设计与岩石强度及硬度不匹配.因此需要对TBM隧道岩石进行可掘性评估,为刀具设计及施工参数确定提供依据.岩石可掘性评价在TBM围岩分级、掘进效率预测等方面十分重要,是评估TBM施工效率与成本的关键,但隧道TBM开挖过程中岩石可掘性的评价通常相当复杂,需要考虑许多参数,且至今国内外对可掘性这一指标尚未有标准化定义.通过文献检索,本文针对可掘性指标的定义,可掘性的研究应用等方面研究进展进行综述.结合已有的研究成果,对TBM可掘性未来的研究方向进行了展望.
Abstract
Tool wear accounts for a high percentage of TBM (Tunnel Boring Machine) boring construction costs,which is usually due to a mismatch between the tool design of the TBM and the strength and hardness of the rock.Therefore,it is necessary to evaluate the rock boreability of TBM tunnels to provide a basis for tool design and construction parameters.The evaluation of rock boreability is very important in the classification of TBM surrounding rock and the prediction of tunneling efficiency.It is a key issue to evaluate the efficiency and cost of TBM construction.However,the evaluation of rock boreability in the process of tunnel TBM excavation is usually quite complex,and many parameters need to be considered.So far,there is no standardized definition of the index of boreability at home and abroad.Through literature searches,this paper reviews the research progress of the definition of boreability index and the research and application of boreability.Combined with the existing research results,the future research direction of TBM boreability is prospected.
关键词
全断面隧道掘进机/可掘性指标/TBM围岩分级/预测模型Key words
tunnel boring machine/drillability index/boreability index/TBM surrounding rock classification/prediction model引用本文复制引用
基金项目
国家自然基金(42277186)
国家自然基金(41877280)
出版年
2024
NETL
NSTL
万方数据