Zhao, L. and Chen, S., 2019. Influence of blasting load peak value on sea-land crossing section under different side pressure coefficient. In: Guido-Aldana, P.A. and Mulahasan, S. (eds.), Advances in Water Resources and Exploration. Journal of Coastal Research, Special Issue No. 93, pp. 975–981. Coconut Creek (Florida), ISSN 0749-0208.
Under the different side pressure coefficient of tunnel blasting operation, the influence of blasting load peak value on sea-land intersection section of tunnel is analyzed, and the experimental load analysis and mathematical simulation of different lateral pressure blasting load peak value distribution are carried out. Improve the safety and life of the sea-land junction tunnel. The lateral pressure conduction control is used to load the tunnel body of the sea-land junction section under different lateral pressure coefficients. The elastic modulus of the sea-land junction tunnel under the moving load of the sea-land junction section is analyzed, and the elastic modulus of the tunnel body under the moving load of the sea-land junction section is analyzed. The dynamic relationship model of yield strength is established, and the constitutive relation model of dynamic joint of sea-land tunnel under different lateral pressure coefficient is constructed. The dynamic curvature correction is carried out by interfacial bond strength response method. According to the stiffness method, the dynamic characteristic decomposition on the cross-section level is carried out, and the cross-section internal force of the steel structure element model of the sea-land junction section tunnel is obtained, and the dynamic stress state cloud diagram of the sea-land junction section tunnel under different lateral pressure coefficients is obtained. The experimental results show that the model can be used to analyze the influence of blasting load peak value on the sea-land junction section under different lateral pressure coefficients, and the results are accurate and reliable for the distribution of different lateral pressure blasting load peak value. It has high application value in the construction and design of sea-land tunnel.
