Investigation on the Seismic Wave Propagation Characteristics Excited by Explosion Source in High-Steep Rock Slope Site Using Discrete Element Method

Danqing Song, Xuerui Quan, Mengxin Liu (), Chun Liu (), Weihua Liu, Xiaoyu Wang and Dechao Han
Additional contact information
Danqing Song: School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China
Xuerui Quan: School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
Mengxin Liu: School of Civil Engineering, Northeast Forestry University, Harbin 150040, China
Chun Liu: School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
Weihua Liu: SINOPEC Key Laboratory of Geophysics, Nanjing 211103, China
Xiaoyu Wang: School of Civil Engineering, Northeast Forestry University, Harbin 150040, China
Dechao Han: SINOPEC Key Laboratory of Geophysics, Nanjing 211103, China

Sustainability, 2022, vol. 14, issue 24, 1-22

Abstract: The influence of seismic waves induced by explosion sources on the dynamic response characteristics of rock slope sites is one of the most important problems affecting engineering construction. To investigate the wave propagation characteristics and attenuation law of seismic waves induced by explosive sources in rock sites from the perspective of time and frequency domains, the high-performance matrix discrete element method (MatDEM) is used to carry out numerical simulation tests on a granite rock medium site. The discrete element model of the high-steep rock slope is established by MatDEM, and the dynamic analysis of the rock medium site is conducted by loading blasting vibration load to generate seismic waves. The results show that the seismic waves in the rock site present characteristics of arc propagation attenuation. The maximum attenuation rate of the dynamic response is the fastest within 0.3 s and 25 m from the explosion source. The slope region can weaken the dynamic response of seismic waves generated by the explosion source. In particular, the high-frequency band (>20 Hz) has an obvious filtering effect. The dynamic response of the P-wave induced by the explosive source is greater than that of the S-wave in the bedrock and surface region. The dynamic amplification effect of the P-wave is greater than that of the S-wave in the slope region. The seismic waves in the slope region show an attenuation effect along the slope surface and have a typical elevation amplification effect inside the slope.

Keywords: seismic wave characteristics; attenuation law; explosion source; time and frequency domains; rock slope site (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/24/17028/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/24/17028/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:24:p:17028-:d:1008009

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().