CAJ | 학술논문

受两条区域断层交汇以及岩浆侵入形成较厚隔水岩墙的影响,岭脚隧道左线掌子面FK18+330前方可能赋存多种不良地质体. 文章针对这种极为复杂的地质条件,在地质分析的基础上进行了隧道宏观地质预报,洞内采用陆地声纳法+瞬变电磁法+地质雷达法、洞外采用陆地声纳法+微分电测法+瞬变电磁法进行了现场探测,并进行了综合分析和预报. 现场开挖结果表明,上述综合预报方法可有效减小现场物探在隧道轴向和横向上的误差,能更好地确定复杂地质条件下隧道前方不良地质体的位置、大小和类型.
수량조구역단층교회이급암장침입형성교후격수암장적영향,령각수도좌선장자면FK18+330전방가능부존다충불량지질체. 문장침대저충겁위복잡적지질조건,재지질분석적기출상진행료수도굉관지질예보,동내채용륙지성납법+순변전자법+지질뢰체법、동외채용륙지성납법+미분전측법+순변전자법진행료현장탐측,병진행료종합분석화예보. 현장개알결과표명,상술종합예보방법가유효감소현장물탐재수도축향화횡향상적오차,능경호지학정복잡지질조건하수도전방불량지질체적위치、대소화류형.
Affected by the intersection of two regional faults and a water-resistant rock wall induced by magmat-ic intrusion, various unfavorable geological bodies may exist in front of the working face at FK18+330 on the left line of the Lingjiao tunnel. In light of these complicated geological conditions, a macroscopic tunnel geological prediction was first conducted on the basis of geological analysis, and then an in-situ geological detection was conducted inside and outside of the tunnel by the following methods respectively: land sonar+transient electro-magnetic+geological radar and land sonar+differential electrical sounding+transient electromagnetic. Additionally, a comprehensive analysis and prediction was carried out, with the in-situ excavation results showing that the above comprehensive prediction method can effectively reduce the error of in-situ geophysical prospecting in the tunnel's axial and transverse directions as well as precisely determine the location, size and type of the unfavor-able geological bodies in front of the tunnel face under complicated geological conditions.