CAJ | 학술논문

以某高速公路大跨径隧道为研究对象，在详细地质调查基础上，采用BQ围岩分级和CSIR岩体质量分类方法，对该隧道一段围岩进行快速动态分级，结果表明围岩质量应介于Ⅲ级和Ⅳ级之间。采用赤平极射投影和实体比例投影法对本段隧道稳定性进行快速图解分析评价，结果显示，拱顶不稳定结构体为斜四面椎体，可能塌落的岩体体积最大为44．4 m3。实践证明在隧道施工中采用地质分析法对围岩质量进行动态分级和评价简便快捷，收效好。
이모고속공로대과경수도위연구대상，재상세지질조사기출상，채용BQ위암분급화CSIR암체질량분류방법，대해수도일단위암진행쾌속동태분급，결과표명위암질량응개우Ⅲ급화Ⅳ급지간。채용적평겁사투영화실체비례투영법대본단수도은정성진행쾌속도해분석평개，결과현시，공정불은정결구체위사사면추체，가능탑락적암체체적최대위44．4 m3。실천증명재수도시공중채용지질분석법대위암질량진행동태분급화평개간편쾌첩，수효호。
A case study of rock mass rapid and dynamic of large-span freeway tunnel using BQ and CSIR methods of surrounding rock quality classification on detailed geological surveying.The results show that the surrounding rock quality is between class Ⅲ and Ⅳ.The application of stereographic projection and solid scale projection on the tunnel surrounding rock(s stability indicates that instability structure of vault is oblique tetrahedron and volumetric of possible collapse is 43 m3 .The fact has proved applying the method of geology analysis in tunnel construction has an good effect on dynamic classification and evauation of rock mass quanlity.