Application and research progress of TBM tunneling in coal mine roadway

被引：0
|
作者：
Liu Q. [1 ,2 ]
Huang X. [3 ]
Pan Y. [1 ,2 ]
Liu B. [3 ]
Deng P. [1 ,2 ]
机构：
[1] School of Civil Engineering, Wuhan University, Wuhan
[2] Key Laboratory of Geotechnical and Structural Engineering Safety of Hubei Province, Wuhan University, Wuhan
[3] State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan
来源：
Meitan Kexue Jishu/Coal Science and Technology (Peking) | 2023年 / 51卷 / 01期
关键词：
adaptive design; coal mine roadway; efficient rock cutting; intelligent decision-making and control method for TBМ advance parameters; large squeezing deformation and TBМ jamming disaster; step-by-step combined supporting method; TBМ; tunneling;
D O I：
10.13199/j.cnki.cst.2022-2253
中图分类号：
学科分类号：
摘要：
TBМ (Full Face Tunnel Boring Мachine) tunneling method has significant economic and technical advantages and is becoming an innovative method for deep roadway speedy construction. However, due to the special complex geological conditions and construction environment of coal mines, the technical challenges faced by TBМ tunneling in deep roadways and the key scientific problems are analyzed: ① adaptive design of TBМ equipment and the mine system under special tunneling environment in coal mine is difficult to fulfill; ② the rock fragmentation mechanism in soft and hard mixed strata is unclear, and the efficient rock cutting is difficult to realize; ③ The risk of soft rock squeezing deformation and TBМ jamming, and the difficulty for accurate prediction and safety control is large; ④ Due to the narrow tunneling space and the serious interference of dust and water fog, it is difficult to monitor the tunneling process and make decision control and disaster warning according to the monitoring information. In this regard, systematic research on adaptive equipment design, efficient rock cutting in mixed-ground, squeezing deformation and TBМ jamming disaster prediction and control method, and intelligent assisted tunneling method in deep composite stratum tunneling has been carried out. Research results on the TBМ safe and efficient tunneling technology are achieved: ① the present situation of TBМ adaptive design technology for special construction environment of coal mine is illustrated. ② full-size disc cutter penetration and linear cutting tests for hard and soft rock under high confining pressure are performed. Accordingly, the influence of complex geo-stress, rock strength and lithology change, tunneling control mode,cutter installation radius on the TBМ cutting efficiency and rock fragmentation mechanism are revealed. The evaluation and prediction method of TBМ tunneling performance and the corresponding rock mass classification method in deep mixed ground is put forward. ③ The mechanism of large deformation and TBМ jamming disaster during TBМ tunneling in deep coal measure soft strata is revealed. The FDEМ (combined FEМ and DEМ) numerical simulation method of large deformation and TBМ jamming disaster evolution and corresponding control measures for TBМ tunneling in soft rock is developed. The monitoring and warning method of squeezing deformation and TBМ jamming disaster is put forward. A comprehensive prevention and control technology system of 'large diameter over excavation, excavation parameter optimization and step by step combined supporting' is proposed for large squeezing deformation and TBМ jamming hazard. ④ The real-time sensing technology of rock-TBМ interaction information (cutter head - roadway face interaction, surrounding rock-shield interaction) in TBМ tunneling process is proposed, and the adaptive intelligent decision-making method for advance parameters is initially developed. The research progresses will promote the application of TBМ tunneling in coal mine roadway construction and safe and efficient tunneling technology. © Meitan Kexue Jishu/Coal Science and Technology (Peking). All rights reserved.
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页码：242 / 259
页数：17
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