瑞利波探测技术是利用其频散曲线的变化与地下地质条件存在联系,通过对频散曲线的特征识别,得到探测方向上一定范围内的地质构造情况.它具有施工简单、快速、成本低以及对原结构物无损坏等优点,日前已广泛应用于地质勘探领域.本文结合瑞利波的探测原理,着重讨论了多道瑞利波探测技术在矿井地质中的应用及前景,并给出了应用实例.

Measurement while drilling is one of the key technology of nearly horizontal directional drilling in coal mines. This article introduce the general conditions of nearly horizontal directional drilling's development and the principle and constitute of the Measurement while drilling system. It also discusses and prospects the development and the practice of directional drilling Measurement while drilling technology.

Rayleigh wave detection is a new shallow earthquake detection method developed in recent years at home and aboard,and has been applied in many fields.This paper presents the detection principle of Rayleigh wave exploration technologies,and successfully used it on the advanced detecting technology to blinded leading.Exam-ples show that the detection range is over 80 m,and if conditions permit it can reach up to 100 m.

Method of powerful magnetic field and multi-station detect system is the effective method for geohydrological, coalfield geology, the environment and engineering geology. This paper describes the composing of distribution data accumulate system, the technique of high resolution data accumulate, IGBT high power pulse transmitting and the technique of double direction absorb circuit about FDK-1 distribution multi-function electromagnetic detector.