## 1 Introduction
(2019) studied the influence of blasting construction on the 33-story frame structure at Exit A of the Xizhen of Qingdao Metro Line 1, and the result is a reference for the protection of high-rise buildings during urban blasting construction. By employing on-site monitoring, [PERSON] et al. [PERSON] and [PERSON] (2019) investigated the law of vibration in the unique stratum of the upper soft and lower hard, and confirmed the viability of numerical simulation for engineering blasting. [PERSON] et al. [PERSON] et al. (2019) studied the impact of blasting on surrounding rocks in the seepage area of the tunnel ahead through on-site monitoring and numerical simulation, and concluded that the arch waist has the maximum vibration velocity, the excavation of the lower bench has greater destructive force than that of the upper bench under the same spacing, and the minimum safety clearance is D (D is the tunnel span). [PERSON] et al. [PERSON] et al. (2019) first summarized the development stage of failure evolution based on the field data, then used LS-DYNA to determine the vibration response and failure mode of the temporary middle wall under different explosive amounts and blasting distances. [PERSON] et al. [PERSON] et al. (2019) studied the impact of blasting in the adjacent tunnel on the initial support and lining of the ultra-small distance tunnel based on the Jiuwuji tunnel blasting project in Guizhou Province, and the result showed that the main frequency distribution of the initial support and lining is very wide and the vibration is diverse, within 200 Hz. [PERSON] et al. [PERSON] et al. (2019), by monitoring particles on the lining of the tunnel, studied the influence of blasting on the tunnel, and concluded that the peak particle velocity generated is always caused by the cutting hole blasting. [PERSON] et al. [PERSON] et al. (2019) through field monitoring and simulation by FLAC3D, analyzed the influence of blasting of a new tunnel on the operating tunnel, and concluded that the vibration velocity of the arch in the blasting surface of the existing tunnel is larger, and the blasting will have an impact on a moving train. [PERSON] et al. [PERSON] et al. (2019) carried out research on the Qiandouquan Tunnel project by adopting single-layer and double-layer p blasting schemes, and found that the double-layer presplitting blasting can reduce the vibration speed better by comparison. By tracking and analyzing the field particle vibration velocity through numerical simulation in the Nanjing Metro's ultra-small clear-distance tunnel project, [PERSON] et al. [PERSON] et al. (2019) discovered that the vibration velocity of the side wall of the tunnel is greater than that of the arch foot. Moreover, the closer the blasting point, the greater the vibration velocity. [PERSON] et al. [PERSON] et al. (2019) studied the improvement of the energy performance of subway tunnels using steel fiber-reinforced concrete lining to enhance shallow geothermal energy. They found that the thermal conductivity of the steel fiber-reinforced concrete lining is better than that of ordinary concrete lining with advantages in heat exchange and cooling operation. [PERSON] et al. (2015) studied the use of glass fiber-reinforced polymer (GFRP) to reinforce high-strength concrete lining segments, and found that the segments with GFRP have bending and shear strength, but with little effect on the lining segments after cracking. In summary, there is little research on the impact of small-spacing tunnel blasting construction on adjacent steel fiber tunnel linings. Some scholars have found that steel fiber-reinforced concrete lining has significant improvements in bending moment, yield moment, and ultimate moment compared with steel-reinforced concrete lining. The structural vibration velocity from blasting can be used as an indicator of the strength of the blasting vibration effect. The peak vibration velocity during blasting construction differs in tunnels, but the closer the blasting point, the greater the vibration velocity.