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Research on Zonal Dust Removal Technology in Tunnel Construction Period Based on Fuzzy Control
(1. School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074; 2. China Merchants Chongqing Communications Technology Research & Design Institute Co., Ltd., Chongqing 400067)
Abstract For the problems related to the lack of alternatives for dust removal means and low dust removal efficiency in the tunnel automatic dust removal system, a new method of zonal dust removal based on fuzzy theory is proposed,and a zonal dust removal system is established by combining fuzzy PID control technology. The system uses the sampling module to monitor the data in real time, corrects the parameters online through the fuzzy control module, and continuously circulates the control frequency converter to improve the operating frequency of the controlled object,to adjust the ventilation and spray volume of each operation area. Finally, the treatment module realizes the purpose of coordinated dust removal by ventilation and water curtain dust fall. The system is applied to a high-altitude super-long tunnel in Tibet. The results show that the system can reduce the dust concentration in the tunnel face, inverts and secondary lining operation area, with the average concentration reduced by 78.60%, 78.90% and 80.00% respectively. With a high dust removal efficiency, the system can effectively protect the physical and mental health of tunnel construction workers, and improve the tunnel construction efficiency.
Abstract：
For the problems related to the lack of alternatives for dust removal means and low dust removal efficiency in the tunnel automatic dust removal system, a new method of zonal dust removal based on fuzzy theory is proposed,and a zonal dust removal system is established by combining fuzzy PID control technology. The system uses the sampling module to monitor the data in real time, corrects the parameters online through the fuzzy control module, and continuously circulates the control frequency converter to improve the operating frequency of the controlled object,to adjust the ventilation and spray volume of each operation area. Finally, the treatment module realizes the purpose of coordinated dust removal by ventilation and water curtain dust fall. The system is applied to a high-altitude super-long tunnel in Tibet. The results show that the system can reduce the dust concentration in the tunnel face, inverts and secondary lining operation area, with the average concentration reduced by 78.60%, 78.90% and 80.00% respectively. With a high dust removal efficiency, the system can effectively protect the physical and mental health of tunnel construction workers, and improve the tunnel construction efficiency.
LI Penghui1 LI Ke1,
2 WANG Fang1 CHENG Liang1,
2 JI Hongwei2
.Research on Zonal Dust Removal Technology in Tunnel Construction Period Based on Fuzzy Control[J] MODERN TUNNELLING TECHNOLOGY, 2022,V59(6): 216-223
2022, Vol. 59 