为避免观音山隧道爆破开挖时对周边敏感构筑物造成影响，有必要对隧道开挖的爆破方案及地表质点振动速度衰减的规律进行研究。通过对隧道爆破时爆破地震波的形成及衰减规律的研究，针对观音山国家森林公园的地质条件，制定了不同围岩的爆破方案；对不同爆破方案中的炮眼布置、掏槽眼布置、装药方式及爆破参数的选择等问题作了详细探讨。通过计算，得出了观音山地区隧道爆破开挖时地表质点振动速度衰减的规律及合理的爆破参数，避免了隧道开挖对附近敏感构筑物的影响。

In order to avoid Guanyin Mountain tunnel blasting excavation from affecting those surrounding sensitive structures, it is necessary to conduct researches on tunnel blasting excavation scheme and surface particle vibration velocity attenuation law. Researched are formation and attenuation laws of blasting seismic waves produced in tunnel blasting and prepared are different rock blasting and excavation schemes according to the geological conditions of Guanyin Mountain National Forest Park. Discussed in detail are blast-hole layout, undercutting eye arrangement, powder-filling manner and selection of blasting parameters in different blasting schemes. Through analysis and calculation, reasonable blasting parameters are obtained so as to avoid Guanyin Mountain tunnel blasting excavation from affecting those surrounding sensitive structures.