Slag Transportation Technology of Long and Large Chute
for Tunnel Construction in Complex and Dangerous Mountainous Area

doi:10.3973/j.issn.2096-4498.2022.S2.059

Tunnel Construction ›› 2022, Vol. 42 ›› Issue (S2): 472-478.DOI: 10.3973/j.issn.2096-4498.2022.S2.059

Previous Articles Next Articles

Slag Transportation Technology of Long and Large Chute for Tunnel Construction in Complex and Dangerous Mountainous Area

XIAO Jing1, 2, ZENG Xutao1, 2, LI Dejie1, 2, XIA Zanliang3

（1. CCCC Second Harbor Engineering Co., Ltd., Wuhan 430040, Hubei, China；2. Key Laboratory of LongSpan Bridge Construction Technology, Wuhan 430040, Hubei, China；3. China Communications Second Navigational Bureau Second Engineering Co., Ltd., Chongqing 401121, China)

Online:2022-12-30 Published:2023-03-26

Abstract

Abstract: A railway tunnel under construction in mountainous areas with complex geological conditions is confronted with the problem of no transportation channel for the secondary transfer of discarded slag. The technology of transfering slag with long and large chute is proposed and its key points are studied by field test and numerical calculation. The results show that: (1) The sliding velocity of slag particles increases with particle size, and the average friction coefficient is 0.16 when slag particles sliding in the chute. (2) The force of single fishbone baffle, the resultant force of fishbone baffle before and after 24 m, and the velocity of stone slag particles gradually increase with increasing fishbone baffle spacing, baffle angle, and the angle of folded energy dissipation structure, while decrease with the increase of width of fishbone baffle and length of energy dissipation structure.

Key words: , tunnel, discarded slag transportation, chute structure, friction coefficient, energy dispersion, fishbone baffle, folded energy dissipation structure

XIAO Jing, ZENG Xutao, LI Dejie, XIA Zanliang. Slag Transportation Technology of Long and Large Chute for Tunnel Construction in Complex and Dangerous Mountainous Area[J]. Tunnel Construction, 2022, 42(S2): 472-478.

[1]	XIAO Mingqing, XU Chen, XIE Biting, CHEN Wenpeng, WANG Kejin. Research on Design Technology of Sequential Supporting for High-Speed Railway Tunnel Constructed by Drilling-and-Blasting Method [J]. Tunnel Construction, 2023, 43(3): 369-382.
[2]	HU Min, PEI Liefeng, WU Bingjian, SUN Junchao, LU Jing. Current Situation and Prospect of Shield Automatic Driving Technology [J]. Tunnel Construction, 2023, 43(3): 383-391.
[3]	JIA Lianhui, CHEN Shuai, JIA Zhengwen, JING Liujie, CHEN Qiang, NIU Kongxiao. Research on Intelligent Construction Systems andKey Technologies for Drilling-and-Blasting Tunnels [J]. Tunnel Construction, 2023, 43(3): 392-407.
[4]	LIU Sijin, WANG Yubo, FANG Yong, XIONG Yingjian, MA Yuyang. Prediction Model for Grease Consumption of Super-Large Diameter Slurry Shield Based on Bidirectional Long Short-Term Memory and Autoregressive Integrated Moving Average Model [J]. Tunnel Construction, 2023, 43(3): 408-416.
[5]	YANG Zhenxing, ZENG Chuigang, LI Fengyuan, ZHANG Kai, WANG Liming, ZHANG Min. Optimization of Calculation Method of Mucking Volume for Slurry Shield Based on Big Data [J]. Tunnel Construction, 2023, 43(3): 417-422.
[6]	YANG Yandong. Stability Identification Methods for Tunnel Surrounding Rock Based on Tunneling Parameters [J]. Tunnel Construction, 2023, 43(3): 423-428.
[7]	YUAN Zhenyu, AN Zheli, MA Weibin, MA Chengxian, WANG Yong, CHANG Kai. Exploration on Intelligent Rock Classification Method for Tunnels Based on Multi-source Heterogeneous Data Fusion [J]. Tunnel Construction, 2023, 43(3): 429-440.
[8]	WANG Rui, AN Zheli, , TIAN Siming, XU Xinji, CHEN Lei. Denoising Method Based on Spectral Subtraction for Seismic Wave Advance Detection in Tunnels [J]. Tunnel Construction, 2023, 43(3): 441-450.
[9]	GUO Lei. Three-Dimensional Automatic Design Method for Tunnel Portal Engineering [J]. Tunnel Construction, 2023, 43(3): 451-459.
[10]	LIN Chungang, MA Zhaolin, CHEN Yongliang, LI Jing, SHANG Wei HAN Weifeng. Assembly Technology of Prefabricated Arc Parts and Application of Intelligent Assembling Machine for Large-Diameter Shield Tunnels [J]. Tunnel Construction, 2023, 43(3): 460-477.
[11]	LU Jing, ZHOU Wenbo, HU Min. Stage Target Planning of Surface Deformation in Shield Tunneling and Its Applications in SelfDriving Shield [J]. Tunnel Construction, 2023, 43(3): 486-495.
[12]	REN Yingying, HU Xinpeng, XIA Zhanhui, ZHOU Zhenjian. DataDriven Collaborative DecisionMaking Technology for Manufacturing and Operation Maintenance of Tunnel Boring Machine [J]. Tunnel Construction, 2023, 43(3): 496-504.
[13]	CHEN Ruixiang, ZENG Chuigang, LI Fengyuan,  HAN Weifeng, HU Xinpeng, WANG Yuxiang. Design and Application of a Prefabricated Component Installation Machine for Shield Tunnel Internal Structures [J]. Tunnel Construction, 2023, 43(3): 505-513.
[14]	MA Zhuo, FANG Zhongqiang, ZHANG Dan, TU Qiliang, SHI Bin, NURLAN Yedili. Distributed Optical Fiber Intelligent Sensing Method for 3D Deformation of Tunnel Joints [J]. Tunnel Construction, 2023, 43(3): 514-520.
[15]	LI Jianbin. Design Philosophy and Prospect of HorseshoeShaped Boring Machine for Soft Rock Tunnels with Large Deformation [J]. Tunnel Construction, 2023, 43(2): 191-198.

Slag Transportation Technology of Long and Large Chute for Tunnel Construction in Complex and Dangerous Mountainous Area

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments