中文摘要：

为研究北京砂卵石地层中盾构施工所引起的地表振动问题，对北京地铁10号线二期公主坟一西钓鱼台区间隧道施工现场进行振动测试。通过对振动实测数据进行分析，总结盾构施工时地表振动频域特点及振动衰减规律，并对振动产生的地表环境影响进行初步评价。研究表明：盾构施工引起的地层振动频带较宽，中线测点主频集中于30～90Hz范围内；振动波传播过程中高频部分被过滤，较远处测点振动主频降低至30～50Hz。地面人员对刀盘附近振动感知非常明显，监测到的加速度极值达到0．49m／s^2；垂直振动幅值与水平向幅值处于同一量级，并随着远离刀盘而不断衰减。

英文摘要：

To study the surface vibration caused by shield tunnel construction in sand gravel layer of Beijing district, field tests were carried out on the surface vibration along the segment from Gongzhufeng Station to West Diaoyutai Station of the running tunnel of metro line 10. With analysis to the measured vibration data, frequency domain characteristic and vibration attenuation law induced by shield tunnel construction were summarized. A preliminary evaluation of environmental impact was also conducted. The research shows that the ground staff can obviously perceive vibrations near the cutter head. Frequency band of the vibration induced by shield tunnel construction is relatively wide. The main frequency of vibration monitored in the central line is distributed within 30 -90Hz. High frequency is filtered in vibration wave propagation process and the main frequency reduced to 30 -50Hz. The extreme value of acceleration is about 0.49m/s2. Vertical vibration amplitude and horizontal amplitude are in the same order of magnitude, and attenuate when propagating away from the cutter head.