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隧道建设(中英文) ›› 2022, Vol. 42 ›› Issue (S1): 120-127.DOI: 10.3973/j.issn.2096-4498.2022.S1.014

• 研究与探索 • 上一篇    下一篇

基于模糊控制的隧道有害气体治理技术研究

李科1, 2, 李鹏辉1, 2, 蔡爽1, 程亮1, *, 姚雪峰3   

  1. 1. 招商局重庆交通科研设计院有限公司, 重庆 400067; 2. 重庆交通大学土木工程学院重庆 400074; 3. 重庆市公路事务中心, 重庆 401147)

  • 出版日期:2022-07-22 发布日期:2022-08-22
  • 作者简介:李科(1986—),男,重庆人,2013年毕业于上海交通大学,岩土工程专业,博士,研究员,现从事隧道与地下工程科研工作。Email: 364842342@qq.com。*通信作者: 程亮, Email: lightcheng@126.com。

Research on Tunnel Harmful Gas Control Technology Based on Fuzzy Control

LI ke1, 2, LI Penghui1, 2, CAI Shuang1, CHENG Liang1, *, YAO Xuefeng3   

  1. (1. China Merchants Chongqing Communications Technology Research & Design Insitute Co., Ltd.,Chongqing 400067, China; 2. School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China;

    3. Chongqing Highway Affairs Center, Chongqing 401147, China)

  • Online:2022-07-22 Published:2022-08-22

摘要: 针对隧道通风系统控制手段单一、控制滞后、效率低且效果差等问题,改进一种基于模糊理论的多种有害气体综合治理新方法,并采用模糊PID控制技术构建一种综合治理系统。该系统利用采样模块实时监测数据,将信号上传至分析模块进行全局把控,通过模糊控制模块在线校正参数,不断循环控制变频器来提高被控对象的运行频率,调节风量与吸收液喷雾量,最后由治理模块实施通风稀释和喷雾净化,实现对多种有害气体进行治理。该系统应用于青海省某穿煤隧道,结果表明: 该系统能够快速降低放炮后监测断面处有害气体浓度,其中掌子面处瓦斯、硫化氢的平均浓度值分别降低了17.3%27.3%,衬砌前端处二者的平均浓度降低了12.2%36.7%,具有较高的准确性;放炮后浓度降至规范限值的时间也由平均20 min减少至10 min左右,缩短了1~2倍,能有效保障隧道施工安全,提高隧道施工效率。

关键词: 隧道通风, 模糊理论, 模糊PID控制技术, 有害气体治理

Abstract: Aiming at the problems of tunnel ventilation system, such as single control means, lagging control, low efficiency, and poor effect, a new method for comprehensive treatment of multiple harmful gases based on fuzzy theory is improved, and a comprehensive treatment system is constructed using fuzzy proportional integral derivative control technology. By using realtime monitoring data of sampling module, the system uploads the signal to the analysis module for global control. The fuzzy control module corrects parameters online, controls the frequency converter to improve the operating frequency of the controlled object continuously and circularly, and adjusts the air volume and the absorption liquid spray amount. Finally, ventilation dilution and spray purification are carried out by the treatment module to dispose various harmful gases. This system has been applied to a coal tunnel in Qinghai Province. The results show that the system can quickly reduce the concentration of gas and hydrogen sulfide at the monitoring section after blasting, and the average concentration values are reduced by 17.3%, 27.3% respectively at the excavation workface, 12.2% and 36.7% at the frontend of the lining, with high accuracy. After blasting, the time for the concentration to drop to the standard limit is also reduced from 20 min to 10 min on average, which is shortened by about 1~2 times. It effectively ensures the safety of tunnel construction and improves the efficiency of tunnel construction.

Key words:  , tunnel ventilation, fuzzy theory, fuzzy proportional integral derivative control technology, harmful gas disposal