超前探测预测地质构造是煤矿井下突出的地质问题之一。
Heading detecting of geological structures is one of the prominent problems in coalmine geology.
岩溶富水隧道施工中对隧道掌子面前方一定范围内的地质情况进行超前探测和预测预报是保证隧道施工安全的关键技术。
In tunnel construction of rich water karst area, the key technology to guarantee the tunnel construction security is to detect and forecast the geological situation in front of the tunnel face.
总结了地下灾害地质体超前探测技术的研究现状和趋势；
Research actuality and trend on the advanced detecting technology for underground hazards geological body have been summarized in this paper.
目前直流电法超前探测技术探测掘进工作面前方灾害性水文地质异常体已成为煤矿生产安全方面有效手段之一。
At present, the pre detection technique of DC method to detect the disaster of the front side of the working face has become one of the effective methods in the coal mine production safety.
本文结合羊曲水电站导流洞工程实例，介绍TGP206型地质超前预报系统的探测原理、探测方法、测线布置、结果分析技术。
In this paper, with examples of Yangqu diversion tunnel project, Focusing on TGP206 geological forecast system theory, detection method, line layout and results analysis techniques.
为解决探地雷达用于隧道地质超前预报时探测距离小的问题，在分析了雪崩三极管工作原理的基础上，设计了基于两级雪崩三极管串行级联的窄脉冲产生电路。
The status in quo of Impulse Ground Penetrating Radar and the general principle of Avalanche Transistor are discussed then a new method for Avalanche simulation is given in this thesis.
为解决探地雷达用于隧道地质超前预报时探测距离小的问题，在分析了雪崩三极管工作原理的基础上，设计了基于两级雪崩三极管串行级联的窄脉冲产生电路。
The status in quo of Impulse Ground Penetrating Radar and the general principle of Avalanche Transistor are discussed then a new method for Avalanche simulation is given in this thesis.
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