When a metro is constructed by the shield method in the strata containing boulder group, it is prone to some engineering problems such as serious cutter wear, deformation of the cutter holder head, damage of the cutter spindle, which seriously affects the construction efficiency and bring enormous problems to the shield construction. This paper proposes the vibration reduction measures for the boulder deep-hole blasting to meet the construction safety. To achieve this purpose, the field test was applied to investigate the vibration response of adjacent building under five blasting areas. Then, three-dimensional numerical model was employed to discuss the vibration characteristics of the boulder and adjacent buildings under vibration reduction measures. The results show that increasing the damping hole and the isolation hole and changing the charging layout of the blasting areas can blast the boulder under the condition of ensuring effective and safe construction. Damping hole and isolation hole have a positive role in the control and attenuation of blasting stress wave. All of them have good vibration reduction effect, and the vibration reduction efficiency is more than 90%. The double row damping holes with 12.7 cm diameter and 20 cm spacing have good vibration reduction effect and economic benefit. When double row damping holes are used, the maximum particle velocity of the shaft structure under the influence of blasting stress wave is 1.47 cm/s, which is within the reasonable safety range.

在含巨石组的地层中采用盾构法施工地铁时，容易出现严重的刀具磨损，刀架头部变形，刀轴损坏等工程问题，严重影响施工效率，带来严重的经济隐患。盾构的巨大问题。提出了巨石深孔爆破减振措施，以确保施工安全。为了达到这个目的，现场测试被用于调查五个爆破区域下相邻建筑物的振动响应。然后，采用三维数值模型讨论了在减振措施下巨石及邻近建筑物的振动特性。结果表明，在确保有效安全施工的前提下，增加减震孔和隔离孔，改变爆破区域的装药布局，均可以对巨石进行爆破。阻尼孔和隔离孔对爆破应力波的控制和衰减起着积极的作用。它们均具有良好的减振效果，减振效率大于90％。直径为12.7厘米，间距为20厘米的双排阻尼孔具有良好的减振效果和经济效益。当使用双排阻尼孔时，在爆破应力波的作用下，竖井结构的最大粒子速度为1.47 cm / s，在合理的安全范围内。