角洞岙隧道上跨输水隧道三维数值模拟及爆破减震措施研究

摘要

结合具体工程,介绍了新建公路隧道上跨既有输水隧道的爆破减震设计要点,并对其施工过程进行了三维弹塑性数值模拟。研究结果表明：施工过程中输水隧道是稳定的;公路隧道的施工对输水隧道受力有利。%Based on the practical project,the key points for blasting and vibration-reduction design of new highway tunnel overpassing water delivery tunnel have been introduced and 3D numerical simulation analysis has been carried out in the whole construction process.Research results show that water delivery tunnel is stable under the whole construction process and the construction of highway tunnel is good for mechanical behavior of water delivery tunnel.The research results can provide references for the design of similar project.