摘要
岩溶构造是隧道掘进过程中的主要安全威胁因素之一,研究如何提前精准探测掌子面前方的岩溶构造类型、构造规模、空间位置及充水情况等信息,对于制定掘进方案和安全保障措施具有重要意义。在分析岩溶构造成因和研究各种岩溶构造的形态和电性特征的基础上,结合地质雷达的探测原理推导其电磁波反应特征。在理论研究的基础上,应用地质雷达对云南南扎隧道岩溶构造进行探测,成功多次探测出了掌子面前方的岩溶构造,为隧道安全掘进提供了可靠的参考资料。
Karst structure is one of the main safety threat factors in the process of tunnel excavation.It is of great significance to study how to accurately detect the information of karst structure type,structure scale,space position,water filling in front of the face in advance,so as to formulate the excavation scheme and safety guarantee measures.Based on the analysis of the cause of formation of karst structure and the study of the shape and electrical characteristics of various karst structures,the response characteristics of electromagnetic wave are deduced by combining the detection principle of geological radar.On the basis of theoretical research,the karst structure of Yunnan Nanzha tunnel is detected by using geological radar,and the karst structure in front of the face is successfully detected many times,which provides reliable reference for safe tunneling.
作者
宋伟
SONG Wei(Chongqing Research Institute of China Coal Technology&Engineering Group Corporation,Chongqing,400037)
出处
《黑龙江交通科技》
2020年第8期161-162,共2页
Communications Science and Technology Heilongjiang
基金
十三五国家科技重大专项(2016ZX05045004-007)井下致裂效果范围测定技术与装备。
关键词
地质雷达
岩溶构造
超前地质预报
Ground penetrating radar
Karst structure
Advance geological prediction
