Results 1 to 10 of about 243,456 (174)
A Finite Element Analysis of Tunnel Lining Demolition by Blasting for Subway Tunnel Expansion
Applied Sciences (Switzerland), 2022 In this paper, a practical project of subway tunnel lining demolition via blasting for the construction of a subway station under the action of the blasting load and the weight of collapsed rock mass was proposed.
Jie Zhou +4 more
exaly +4 more sources
Semi-supervised method for tunnel blasting quality prediction using measurement while drilling data
Journal of Rock Mechanics and Geotechnical EngineeringPredicting blasting quality during tunnel construction holds practical significance. In this study, a new semi-supervised learning method using convolutional variational autoencoder (CVAE) and deep neural network (DNN) is proposed for the prediction of ...
Qian Fang, Jiayao Chen, Guoli Zheng
exaly +4 more sources
Experimental study on dynamic response of existing tunnel lining structure by adjacent tunnel blasting load [PDF]
Scientific ReportsDuring tunnel construction by the drilling and blasting method, the blasting stress waves may affect the mechanical response of existing tunnel lining structure. Based on the similarity theory, a mechanical response of existing tunnel lining structure by
Bin Zhang +7 more
doaj +2 more sources
Advances in Civil Engineering, 2021 In recent years, with the increasement of the railway expansion projects, the blasting damage has caused great threat to the safety of the existing tunnel structure. However, few researches are carried out on the influence of tunnel blasting construction
Xian Du +4 more
doaj +2 more sources
Influence of blasting load directions on tunnel stability in fractured rock mass
Journal of Rock Mechanics and Geotechnical Engineering, 2022 Tunnels in fractured rock masses are typically damaged by dynamic disturbances from various directions. To investigate the influence of blasting load directions on the stability of a tunnel with a pre-crack nearby, blasting tests were conducted on the ...
Meng Wang, Zheming Zhu, Ding-jun Xiao
exaly +3 more sources
Propagation characteristics and control technology of blasting vibration in neighborhood tunnel
Frontiers in Earth Science, 2023 During the tunnel construction process using the drilling and blasting method, the induced blasting vibration always poses a great threat to the stability and safety of the adjacent tunnel supporting structure.
Zixiu Qin +6 more
doaj +1 more source
地质科技通报, 2023 To accurately evaluate the blasting effect of tunnel demolition, guarantee the normal traffic of vehicles during the blasting for insitu two-to-four lane expansion in the municipal tunnels, and reduce the risk of blasting demolition as well as expansion ...
Danhong Wu +5 more
doaj +1 more source
Intelligent Control of Smooth Blasting Quality in Rock Tunnels Using BP-ANN, ENN, and ANFIS
Geofluids, 2021 The construction quality of tunnel smooth blasting is difficult to control and fluctuates greatly. Moreover, the existing technology, which relies on the visual observation, empirical judgment, and artificial control, has difficulty meeting the ...
Baoping Zou +3 more
doaj +1 more source
Formation Mechanism and Control Technology of an Excavation Damage Zone in Tunnel-Surrounding Rock
Applied Sciences, 2023 Loosened rock circle is formed around the tunnel when the tunnel is constructed by the drilling and blasting method. The size of the loosened rock circle around the tunnel and the degree of internal rock fragmentation has an important influence on the ...
Hongxian Fu +7 more
doaj +1 more source
Advances in Civil Engineering, 2022 In order to study the influence of blasting construction of rock mass with discontinuities on adjacent tunnels, a feasible blasting scheme is formulated to ensure the safety of adjacent tunnels during construction. Based on the water resources allocation
XuHui Li, GuoLong Qiao, Junwei Guan
doaj +1 more source