The Vibration Response Characteristics of Neighboring Tunnels Induced by Shield Construction

Authors:
Open Access
Publisher website
Google Scholar
Abstract
With the increasing complexity of engineering environments in tunnel construction, the vibrations generated by shield tunneling in hard rock strata pose significant challenges to the operation and maintenance of adjacent tunnels. This study investigates the vibration characteristics induced by shield tunneling and provides an in-depth analysis of the propagation behavior of these vibrations within tunnel segments and surrounding soil layers. Through a combination of theoretical derivations, on-site monitoring, and numerical simulations, the research examines the distribution of vibration energy and its attenuation patterns with increasing propagation distance. The findings reveal that vibration energy is primarily concentrated in the low-frequency range (3–4 Hz) and follows an exponential decay trend as distance increases. Furthermore, the vibration response of neighboring tunnels is heavily influenced by the construction vibration source, with rapid energy attenuation observed over short distances. Numerical simulations conducted using PFC3D6.0 (Particle Flow Code) software validate the theoretical model and emphasize the critical roles of soil-damping properties and tunnel segment material characteristics in vibration attenuation. This study offers a robust theoretical framework and valuable data to support the control of tunnel vibrations and the optimization of construction practices.
Funding Information
  • National Natural Science Foundation of China (51778633, 2022-C1, 2022-B-4)
  • China Railway Construction Corporation 2022 Annual Scientific and Technological Research and Development Plan and Funding Subjects (51778633, 2022-C1, 2022-B-4)
  • Science and technology research and development plan topics of China Railway Second Bureau Group Co. (51778633, 2022-C1, 2022-B-4)

This publication has 23 references indexed in Scilit: