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基于预置射孔类岩石条件的模拟TBM刀头侵岩试验研究

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为了探究不同预制射孔参数对隧道掘进机(TBM)刀头破岩的影响,对不同预制射孔角度、孔间距和排间距的类岩石试件进行侵岩试验,分析了含不同预制射孔试件的侵入难度系数、峰值侵入力和侵入能耗的变化规律.结果表明:预制射孔的排间距从3 cm变化到5 cm,试件的侵入难度系数、峰值侵入力以及侵入能耗逐渐增加;孔间距从1 cm变化到3 cm,试件的侵入难度系数、峰值侵入力以及侵入能耗逐渐增加;预制射孔的角度从45°变化为90°,侵入难度系数、峰值侵入力以及侵入能耗呈先减小后增加趋势,当孔角度为60°时,侵入难度系数、峰值侵入力以及侵入能耗最小.
Study on Rock Intrusion Test of Simulated TBM Cutter Head Based on Prefabricated Perforation Rock-Like Conditions
In order to explore the influence of different parameters of prefabricated perforations on rock breaking by tunnel boring machine(TBM)cutter head,rock intrusion tests were carried out on rock-like specimens with different angles,hole spacing and row spacing of prefabricated perforations,and the change rules of intrusion difficulty coefficient,peak intrusion force and intrusion force energy consumption of sepecimens with different prefabricated perforations were analyzed.The results show that the spacing between rows of prefabricated perforations changes from 3 cm to 5 cm,and the intrusion difficulty coefficient,peak intrusion force and intrusion force energy consumption of the specimens increase gradually.As the spacing between holes changes from 1 cm to 3 cm,the intrusion difficulty coefficient,peak intrusion force and intrusion force energy consumption of the specimens increase gradually.When the angle of prefabricated perforation changes from 45° to 90°,the intrusion difficulty coefficient,peak intrusion force and intrusion force energy consumption decrease first and then increase.When the angle of perforations is 60°,the intrusion difficulty coefficient,peak intrusion force and intrusion force energy consumption are the least.

Tunnel boring machineAuxiliary rock breakingPrefabricated perforationRock intrusion testIntrusion difficulty coefficient

王宣、万文、黄煊祺、赵延林、盛佳、刘杰、周彧

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湖南科技大学资源环境与安全工程学院,湖南湘潭市 411201

长沙矿山研究院有限责任公司,湖南长沙 410012

湖南工程学院建筑工程学院,湖南湘潭市 411101

隧道掘进机 辅助破岩 预制射孔 侵岩试验 侵入难度系数

2024

矿业研究与开发
长沙矿山研究院有限责任公司 中国有色金属学会

矿业研究与开发

CSTPCD北大核心
影响因子:0.763
ISSN:1005-2763
年,卷(期):2024.44(12)