TY - JOUR
T1 - Assessment of Ground-Borne Vibration Impact on Nearby Underground Facilities Induced by Ground Surface Excavation
AU - Wang, Shiguang
AU - Zhu, Songye
AU - Yuen, Pak Leung
N1 - Funding Information:
The authors are grateful for the financial support from the Hospital Authority of Hong Kong (Project No. 8110041727). The second author acknowledges the financial support from Construction Industry Council of Hong Kong (Project No. CICR/03/18) and The Hong Kong Polytechnic University (Project No. ZE1F).
Publisher Copyright:
© 2021 American Society of Civil Engineers.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - Hydraulic breakers are used widely in construction activities such as rock excavation, building demolition, and pavement crushing. High-level ground-borne vibrations generated by hydraulic breakers may adversely affect the surrounding environment and nearby underground facilities. Therefore, vibration impact assessment based on the estimation of vibration intensities on and below ground surface should be conducted before the commencement of any ground excavation work in foundation construction. However, existing empirical formulas are intended mainly for describing ground surface vibrations, and cannot accurately predict underground vibrations. This study quantified the vibration propagation characteristics and the corresponding vibration impact on underground facilities through systematic finite-element simulations of hydraulic breaker-induced ground waves for the first time. A new empirical formula is proposed to estimate the surface and underground vibration intensities, and its efficacy was verified on the basis of field measurement data. The proposed empirical formula enables the direct assessment of vibration impact on buried facilities. Safe separation distances and vibration monitoring limits can be derived to protect underground facilities against vibration-induced damage.
AB - Hydraulic breakers are used widely in construction activities such as rock excavation, building demolition, and pavement crushing. High-level ground-borne vibrations generated by hydraulic breakers may adversely affect the surrounding environment and nearby underground facilities. Therefore, vibration impact assessment based on the estimation of vibration intensities on and below ground surface should be conducted before the commencement of any ground excavation work in foundation construction. However, existing empirical formulas are intended mainly for describing ground surface vibrations, and cannot accurately predict underground vibrations. This study quantified the vibration propagation characteristics and the corresponding vibration impact on underground facilities through systematic finite-element simulations of hydraulic breaker-induced ground waves for the first time. A new empirical formula is proposed to estimate the surface and underground vibration intensities, and its efficacy was verified on the basis of field measurement data. The proposed empirical formula enables the direct assessment of vibration impact on buried facilities. Safe separation distances and vibration monitoring limits can be derived to protect underground facilities against vibration-induced damage.
KW - Construction-induced ground-borne vibrations
KW - Ground excavation
KW - Hydraulic breakers
KW - Safe separation distances
KW - Underground facilities
KW - Vibration impact assessment
KW - Vibration limits
UR - http://www.scopus.com/inward/record.url?scp=85105865856&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)CO.1943-7862.0002065
DO - 10.1061/(ASCE)CO.1943-7862.0002065
M3 - Journal article
AN - SCOPUS:85105865856
SN - 0733-9364
VL - 147
JO - Journal of Construction Engineering and Management
JF - Journal of Construction Engineering and Management
IS - 7
M1 - 04021071
ER -