Analysis of the vibration impact of railway tunnel blasting excavation on existing highway tunnels
DOI: 10.23977/jceup.2024.060207 | Downloads: 13 | Views: 182
Author(s)
Liao Leiyi 1, Hu Qinglong 2, Liu Yongjian 3, Shan Yepeng 3, Cai Guoqing 3
Affiliation(s)
1 Deputy General Manager and Chief Engineer, Guangxi Liuwu Railway Co., Ltd., Nanning, 530012, China
2 China Railway Engineering Design and Consulting Group Co., Ltd., Beijing, 100055, China
3 School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, China
Corresponding Author
Liao LeiyiABSTRACT
Prior to tunnelling by drilling and blasting, a proper assessment of the impact of blasting and excavation vibrations on the adjacent existing buildings (structures) is the basis for ensuring the safe operation and maintenance of the adjacent existing buildings (structures). Based on the Zijing yaoshan Railway Tunnel under the existing Guibin highway tunnel, the Midas GTX software was used to perform non-linear time history analysis, taking into account the damping effect of the blast wave, to study the impact of tunnel blasts on existing structures. The simulation results show that the maximum vibration velocity occurs at the left wall position of the tunnel, with a size of 0.71cm/s, which meets the requirement of particle vibration velocity less than 10cm/s in the specification; Due to the plane intersection angle between the Guibin highway tunnel and the Zijing yaoshan tunnel excavated by blasting, the entire Guibin highway tunnel leans to the right, causing the left side of the Guibin highway tunnel to be affected by the blasting shock wave earlier than the right side. The vibration velocity distribution shows that the vibration velocity at the measurement point on the left side of the tunnel section is significantly higher than that on the right side; Analyzing the development curve of blasting vibration speed, the development curve can be divided into three stages, namely the rising stage, the falling stage, and the stable attenuation stage, and analyzing the characteristics of each stage.
KEYWORDS
Tunnel construction; Undercrossing adjacent tunnels; Midas GTX; drilling and blasting methodCITE THIS PAPER
Liao Leiyi, Hu Qinglong, Liu Yongjian, Shan Yepeng, Cai Guoqing, Analysis of the vibration impact of railway tunnel blasting excavation on existing highway tunnels. Journal of Civil Engineering and Urban Planning (2024) Vol. 6: 45-55. DOI: http://dx.doi.org/10.23977/jceup.2024.060207.
REFERENCES
[1] Liu Guohua, Wang Zhenyu. Dynamic response and blast resistance analysis of tunnels under blasting load[J]. Journal of Zhejiang University (Engineering Edition), 2004, 38(2): 204-209.
[2] Huang Haibin, Li Peng, Wang Chuang, et al. Research and analysis on the influence of small clear distance drilling and blasting method on the existing tunnel structure[J]. Advances in Civil Engineering, 2021, 4730936.
[3] Wu Bo, Cui Yaozhong, Meng Guowang, et al. Research on dynamic response of shallow buried tunnel lining constructed by drilling and blasting method[J]. Advances in Materials Science and Engineering, 2022, 4254690.
[4] Yang Liyun, Chen Siyu, Dong Pengxiang, et al. Orthogonal analysis and numerical simulation of rock mechanics parameters in stress field of shaft heading face[J]. Advances in Materials Science and Engineering, 2020, 3107364.
[5] Xu Jiancong, Wang Zelong, Rui Guorong. Tunnel slotting-blasting numerical modeling using rock tension-compression coupling damage algorithm[J]. Applied Sciences, 2022, 12(13): 6714.
[6] Qin Zixiu, Zhao Yihan, Lu Chen, et al. Propagation characteristics and control technology of blasting vibration in neighborhood tunnel[J]. Frontiers in Earth Science, 2023, 11, 1204450.
[7] Ye Fei, He Chuan, Xia Yongxu. Tracking monitoring and analyzing research on road tunnel lining cracks[J]. Journal of Civil Engineering, 2010, 43(7): 97-104.
[8] John L, Günter W. Shear Waves in Plane Infinite Structures[J]. Journal of the Engineering Mechanics Division, 1972, 98(1).
[9] Li Rongqing, Gong Jinxin, Yang Limin. Reliability analysis of sheet pile structure[J]. Journal of Water Resources, 2007(10): 1265-1271.
[10] Xie Xiaofeng, Wu Congshi, Deng Xiaozhao, et al. Study on the impact of blasting vibration on existing tunnels in underpass tunnels [J]. Chinese and Foreign Highway, 2013, 33(6): 208-212.
Downloads: | 4854 |
---|---|
Visits: | 129039 |
Sponsors, Associates, and Links
-
Journal of Sustainable Development and Green Buildings
-
Landscape and Urban Horticulture
-
Bridge and Structural Engineering
-
Soil Mechanics and Geotechnical Engineering
-
Journal of Municipal Engineering
-
Heating, Ventilation and Air Conditioning
-
Indoor Air Quality and Climate
-
Computer Aided Architecture Design