基于刀盘摩擦扭矩参数的刀具磨损状态识别

doi:10.3973/j.issn.1672-741X.2016.03.016

隧道建设（中英文） ›› 2016, Vol. 36 ›› Issue (3): 344-348.DOI: 10.3973/j.issn.1672-741X.2016.03.016

基于刀盘摩擦扭矩参数的刀具磨损状态识别

左翠凤，唐德高，戎晓力，廖斌

(解放军理工大学爆炸冲击防灾减灾国家重点实验室，江苏南京 210007)

收稿日期:2015-10-14 修回日期:2015-12-18 出版日期:2016-03-20 发布日期:2016-03-30
作者简介:左翠凤（1991—），女，江苏盐城人，解放军理工大学结构工程专业在读硕士，研究方向为地下工程安全风险管理。Email: windyzuo1991@163.com。

State Recognition of Cutter Wear Based on Frictional Torque Parameters of Cutterhead

ZUO Cuifeng, TANG Degao, RONG Xiaoli， LIAO Bin

(State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China)

Received:2015-10-14 Revised:2015-12-18 Online:2016-03-20 Published:2016-03-30

摘要/Abstract

摘要：

盾构在砂卵石地层掘进时，刀具磨损量大一直是困扰施工的难题。从土压平衡盾构的工作原理及砂卵石地层特性2方面分析刀盘扭矩的构成，并通过数学和力学分析建立了摩擦扭矩计算模型。以成都地铁3号线红牌楼南站—红牌楼站区间为研究背景，依托盾构施工安全风险监控系统，对计算模型进行验证；分析刀具磨损时，根据地质条件将摩擦扭矩进行分段计算，同时将摩擦扭矩除以总扭矩得到摩擦比例系数，运用比例系数跟踪判断刀具磨损程度。研究结果表明，砂卵石地层中构成刀盘扭矩的主要组分是刀盘正面、背面和侧面上的摩擦扭矩；摩擦扭矩计算模型符合工程实际；得到的摩擦比例系数与换刀形态具有较好的对应性，可定性判断刀具磨损程度，指导工程实践。

关键词: 砂卵石地层, 土压平衡盾构, 刀具磨损, 摩擦扭矩, 比例系数

Abstract:

The serious shield cutter wear is the key to shield boring in sandycobble stratum. In this paper, the composition of shield cutter torque is analyzed in terms of the working principle of earth pressure balance(EPB) shield and the mechanical properties of sandycobble stratum. A calculation model of the friction torque is established by means of mathematical and mechanical analysis. The calculation model is verified on the basis of risk monitoring system of shield tunneling; and the cutter wear degree is tracked and recognized by means of proportionality coefficient, combining with the South Hongpailou StationHongpailou Station on Line No. 3 of Chengdu Metro as an example. The study results show that: 1) The frictional torques on the front of cutterhead, that on the backside of cutterhead and that on the side of cutterhead are the main components of torque of cutterhead when shield boring in sandycobble stratum. 2) The frictional torque model is coincide with the actual construction state. 3) The frictional torque obtained is coincide with the cutter replacing pattern, and can be considered as the recognition reference of cutter wear degree.

Key words: sandycobble stratum, earth pressure balance shield, cutter wear, frictional torque, proportionality coefficient

中图分类号:

U 455.3

左翠凤，唐德高，戎晓力，廖斌. 基于刀盘摩擦扭矩参数的刀具磨损状态识别[J]. 隧道建设, 2016, 36(3): 344-348.

ZUO Cuifeng, TANG Degao, RONG Xiaoli， LIAO Bin. State Recognition of Cutter Wear Based on Frictional Torque Parameters of Cutterhead[J]. Tunnel Construction, 2016, 36(3): 344-348.

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基于刀盘摩擦扭矩参数的刀具磨损状态识别

State Recognition of Cutter Wear Based on Frictional Torque Parameters of Cutterhead

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