Effect of Underground Stress Waves with Varied Wavelengths on Dynamic Responses of Tunnels

Zhang, Yu; Liu, Yuanxue; Tan, Yizhong

doi:10.1007/s10706-017-0252-6

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…Future research should also consider the effects of other blast design parameters on the blast vibration response, while analyzing the main frequency characteristics associated with the gas storage reservoir shaft and cap layer. Furthermore, machine learning, data fusion and intelligent identification methods should be combined to build a 3D visualization platform for intelligent early warning of blast vibrations (Lu et al, 2011;Chen et al, 2016;Zhao et al, 2016;Verma et al, 2017;Zhang et al, 2017;Li et al, 2018a;Xia et al, 2018;Yang et al, 2018;Song et al, 2019;Wu et al, 2019;Qiu et al, 2020;Zhao et al, 2020;Dai et al, 2020;Huang et al, 2020;Ma et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…These projects are constructed by drilling and blasting methods, and blasting vibration waves will inevitably be generated during the drilling and blasting construction process, and the unstable loading and unloading effect of blast vibration waves will also greatly weaken the stability and reliability of underground gas storages (Fan et al, 2021). Many scholars have conducted detailed studies on the effects of blast vibration on adjacent existing structures, and analyzed the disturbance response characteristics of structures under the excitation of external dynamic loads (Verma et al, 2017;Zhang et al, 2017;Wu et al, 2019;Dai et al, 2020) and internal blast loads (Lu et al, 2011;Song et al, 2019;Huang et al, 2020). Meanwhile, the basic theories of the finite element approach, discrete element method and blast impact dynamics mechanisms have also been used to systematically investigated the factors (Qiu et al, 2020) affecting blast vibration velocity and vibration principal frequency distribution, such as blast source location, blast source distance, burial depth, surrounding rocks characteristics and in-situ stress level (Chen et al, 2016;Li et al, 2018a;Xia et al, 2018;Zhao et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Disturbance and Control of National Strategic Gas Storage Induced by Adjacent Tunnel Blasting

Lin

Liu

et al. 2022

Front. Earth Sci.

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Underground gas storage are often subject to external dynamic loads, blast vibrations, and seismic disturbances, since they function as backup areas for the strategic national energy reserve, supply and demand dispatch, and gas and energy storage. Currently, the research on dynamic response characteristics, dynamic stability, and disturbance control of underground gas storages under dynamic loads is still incomplete and of great practical importance to ensure national strategic security. Therefore, this paper takes the blasting project of the Sansheng tunnel, which passes through the national strategic gas storage reservoir, as the engineering background. Based on the geological conditions and rock characteristics, the dynamic response characteristics of the rock surrounding the tunnel and gas storage are studied using the finite element method. The peak vibration velocity distribution of the surrounding rocks at different blasting source distances is analyzed and compared with the theoretical formula. Subsequently, an asymmetric uncoupled blasting vibration control technique is proposed and used for field blasting. The results show that the numerical results are consistent with the theoretical formula. The blasting vibration velocity decreases exponentially with an increase in the blasting source distance. Overall, the proposed technique significantly decreases the average peak vibration velocity by 22.64% compared to the original vibration velocity.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Disturbance and Control of National Strategic Gas Storage Induced by Adjacent Tunnel Blasting

Lin

Liu

et al. 2022

Front. Earth Sci.

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“…CONWEP implemented in software is used to model the blast load. The destruction of surface dynamic loads on underground structures depends on many factors such as the weight of TNT, the scaled distance, soil properties, position of structure from the TNT and the material of the structure [11,13,15,[18][19][20][21]. The layer thickness and moisture content also ground stiffness have significant influence on underground structures behavior such as lining stress and damage due to surface blasting, [14].…”

mentioning

confidence: 99%

Numerical analysis of underground tunnels subjected to surface blast loads

Nawar

Ata

Nabil

et al. 2020

Frattura Ed Integrità Strutturale

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The increased terrorist attacks on important public structures and utilities have raised the vital necessity for the investigation of performance of structures under blast loads to improve the design and enhance the behavior of structures subjected to such threats. In this study, 3-D ﬁnite element analysis is used to study the effect of surface explosions on the response of RC bored tunnels. The soil behavior is modelled using Drucker-Prager Cap model. Two types of soil are investigated, and the blast load is considered through various weights of TNT explosive charges at heights of 0.50 m and 1.0 m from ground surface. To study the effect of horizontal standoff distance, six different horizontal distances are considered. The results show that the soil type has a significance effect on tunnel response due to surface blasts. Also the weight and the location of charge have a great effect on the safety of the tunnel. Finally, a parametric study is established to define the borders of the restricted area around the tunnel location to be safe.

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Propagation of Cylindrical and Spherical Waves in Two-Layer Soil Media

Meish

Mel’nichenko

2018

Int Appl Mech

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Effect of Underground Stress Waves with Varied Wavelengths on Dynamic Responses of Tunnels

Cited by 7 publications

References 11 publications

Disturbance and Control of National Strategic Gas Storage Induced by Adjacent Tunnel Blasting

Disturbance and Control of National Strategic Gas Storage Induced by Adjacent Tunnel Blasting

Numerical analysis of underground tunnels subjected to surface blast loads

Propagation of Cylindrical and Spherical Waves in Two-Layer Soil Media

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