土压平衡盾构出渣温度实时监测系统设计与应用

孙恒; 杨擎; 黄新淼; 李杰华; 张赟

doi:10.3973/j.issn.2096-4498.2023.08.014

隧道建设 >

2023 , Vol. 43 >Issue 8: 1396 - 1403

DOI: https://doi.org/10.3973/j.issn.2096-4498.2023.08.014

施工机械

土压平衡盾构出渣温度实时监测系统设计与应用

孙恒 ,
杨擎 ,
黄新淼 ,
李杰华 ,
张赟

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（1. 中交第二航务工程局有限公司，湖北武汉 430040; 2. 交通运输行业交通基础设施智能制造技术研发中心，湖北武汉 430040; 3. 长大桥梁建设施工技术交通行业重点实验室，湖北武汉 430040）

孙恒（1986—），男，安徽怀远人，2009年毕业于兰州交通大学，电气工程及其自动化专业，本科，高级工程师，现从事盾构法施工研究工作。E-mail： 290249517@qq.com。*通信作者：黄新淼， E-mail： 506543918@qq.com。

网络出版日期: 2023-09-11

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Design and Application of a Real-Time Monitoring System for Mucking Temperature of Earth Pressure Balance Shields

SUN Heng ,
YANG Qing ,
HUANG Xinmiao ,
LI Jiehua ,
ZHANG Yun

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（1. CCCC Second Harbour Engineering Co., Ltd., Wuhan 430040, Hubei, China; 2. Research and Development Center of Transport Industry of Intelligent Manufacturing Technologies of Transport Infrastructure, Wuhan 430040, Hubei, China; 3. Key Laboratory of Large-span Bridge Construction Technology, Wuhan 430040, Hubei, China)

Online published: 2023-09-11

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摘要

为弥补现有研究中土压平衡盾构出渣温度监测技术的不足，自主设计研发一套土压平衡盾构出渣温度实时监测系统，其由土舱壁、螺旋机筒壁、出渣口和皮带机4处安装的温度传感器实时监测出渣温度，并将监测数据传输到盾构PLC界面实时显示和记录。该系统首次应用于深圳地铁6号线支线某工程。应用结果表明： 1)该系统能实时监测刀盘前方渣土的温度变化情况，稳定性良好，且可在PLC操作界面实时查看历史数据，自动化程度高。2)同一时刻不同位置监测点温度存在0.5~1.0 ℃的差异，且地层的变化会导致出渣温度发生变化。3)在黏土地层和强风化岩层中，当出渣温度＜35 ℃时，属于正常范围；当出渣温度为35~45 ℃时，属于警戒范围；当出渣温度＞45 ℃时，属于异常范围。施工时应结合转矩、推力、掘进速度的变化，综合判断刀盘刀具是否结泥饼。

关键词： 土压平衡盾构; 监测系统; 出渣温度; 结泥饼

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孙恒 , 杨擎 , 黄新淼 , 李杰华 , 张赟 . 土压平衡盾构出渣温度实时监测系统设计与应用[J]. 隧道建设, 2023 , 43(8) : 1396 -1403 . DOI: 10.3973/j.issn.2096-4498.2023.08.014

Abstract

A realtime monitoring system is developed for the mucking temperature of the earth pressure balance shield. The temperature sensors are installed on the bulkhead, screw conveyor, mucking outlet, and belt conveyor to monitor the mucking temperature in real time. Subsequently, the data are transmitted to the programmable logic controller(PLC) interface of the shield for realtime display and recording. The system was implemented in a project of the branch line of Shenzhen metro line 6 for the first time. The applicable results are as follows: (1) The proposed system can monitor the temperature fluctuation ahead of the cutterhead in real time with good stability. Moreover, the previous data in the PLC operation interface can be queried conveniently, showing a high automation degree. (2) There is a temperature difference of approximately 0.5 ℃ ~ 1 ℃ among various monitoring points, and the change in stratum property lead to changing the mucking temperature. (3) In the cohesive soil layer and strongly weathered rock layer, mucking temperature below 35℃ can be defined as normal; from 35℃ to 45℃ can be defined as a warning signal; and above 45℃ can be defined as abnormal, in case of what, the mud cake phenomenon should be estimated comprehensively based on the torque, thrust, and tunneling speed changes.

Key words： ; earth pressure balance shield; monitoring system; mucking temperature; mudcake

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