A load simulation analysis method and system for tunnel blasting construction

By selecting reference blasting schemes and combining vibration monitoring data to invert equivalent loads, the problem of discrepancies between simulation results and actual conditions in tunnel blasting construction was solved, achieving accurate simulation and stability assessment of tunnel blasting loads and ensuring construction safety.

CN122154257BActive Publication Date: 2026-07-24CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +2
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD
Filing Date
2026-05-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies for tunnel blasting construction, the simulation results of blasting loads do not match the actual dynamic response, resulting in low accuracy in assessing surrounding rock damage and vibration response. This makes it impossible to assess blasting stability across the entire construction section, posing safety hazards.

Method used

By collecting geological parameters of the surrounding rock of the tunnel and comparing them with historical records, reference blasting schemes were selected. The equivalent blasting load time history distribution was determined by combining vibration monitoring data. The load was then applied to the tunnel geological space model, and the simulated vibration velocity time history waveform was compared and adjusted to evaluate the blasting stability.

Benefits of technology

It improves the accuracy and geological adaptability of blasting load simulation, enables refined stability assessment of the entire construction section, identifies the risk of excessive local vibration, and provides safe and reliable construction guidance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122154257B_ABST
    Figure CN122154257B_ABST
Patent Text Reader

Abstract

The present application relates to the technical field of blasting load simulation analysis, and relates to a load simulation analysis method and system for tunnel blasting construction.The present application compares the collected tunnel surrounding rock geological parameters with the surrounding rock geological parameters of the tunnel blasting history record, screens a reference blasting scheme, performs blasting on the tunnel excavation face according to the reference blasting scheme, collects the blasting vibration velocity time history waveforms of each vibration monitoring point in the tunnel blasting process, inversely determines the equivalent blasting load time history distribution, and applies the equivalent blasting load time history distribution to the corresponding excavation face of the tunnel geological space model to obtain the simulated blasting vibration velocity time history waveforms.Combined with the blasting vibration velocity time history waveforms, the accuracy of the corresponding load of the tunnel geological space model is evaluated.When the accuracy is unqualified, the equivalent blasting load time history distribution is adjusted, and the equivalent blasting load time history distribution is applied to the tunnel geological space model at the same time to obtain the simulated blasting vibration velocity time history waveforms of different blasting areas, evaluate the tunnel blasting stability, and improve the reliability of the numerical simulation results.
Need to check novelty before this filing date? Find Prior Art