CAJ | 학술논문

花岗岩风化残留体会给城市地铁盾构施工带来极大的风险，为保证盾构在存在残留体的地层中顺利掘进，需提前探测出其在隧道沿线的分布情况。较之传统的钻探探测方法，地震法探测具有环境干扰小、效率高、覆盖范围广且成本低廉的优势。文章针对南方地区花岗岩地层特征及城区环境特点，对目前常用地震探测方法的适用性进行了试验研究，认为浅层地震反射法对于孤石探测是行之有效的，采用横波探测可以提高探测准确度。所得出的结论可供以后孤石探测工作参考借鉴。
화강암풍화잔류체회급성시지철순구시공대래겁대적풍험，위보증순구재존재잔류체적지층중순리굴진，수제전탐측출기재수도연선적분포정황。교지전통적찬탐탐측방법，지진법탐측구유배경간우소、효솔고、복개범위엄차성본저렴적우세。문장침대남방지구화강암지층특정급성구배경특점，대목전상용지진탐측방법적괄용성진행료시험연구，인위천층지진반사법대우고석탐측시행지유효적，채용횡파탐측가이제고탐측준학도。소득출적결론가공이후고석탐측공작삼고차감。
Weathered granite residual usually causes enormous risks to the shield tunneling in urban Metro construction. Therefore, detection must be carried out in advance along the tunnel alignment, so as to ensure the successful driving of shield through the formation with granite boulders. Compared to the traditional drilling method, seismic method has obvious advantages such as less environmental interference, high efficiency, wide coverage and low cost. In the paper, the applicability of common seismic detection methods is studied on the basis of the characteristics of granite formation and urban environment in south China. Conclusion is drawn that the shallow seismic reflection method is effective in boulder detection and that the detection accuracy can be improved by S-wave detection. The paper can provide reference for the detection of boulders in future works.