对地壳及上地慢结构的研究,是地震及地质工作中的一个重要的基础性课题。国内外都很重视,近年来进展也较快。目前用于探测的主要手段,仍然是地震法(包括人工爆炸地震)。由于深部探测要求震源能量大,故大都以天然地震波观测为主。近年来,对利用核爆和工程大爆破时的地震波观测很受重视。随着我国“四化”建设步伐的加快,工程大爆破项目的增多,为开展深部结构研究,提供了极为有利的条件。 The study of the crust and the slow structure of the upper Earth is an important basic issue in the earthquakes and geological work. At home and abroad attach great importance to progress faster in recent years. At present, the main means used for detection are still the seismic method (including the artificial explosion earthquake). Due to deep exploration requires high energy source, so most of the natural seismic wave observation. In recent years, the use of nuclear explosions and engineering blasting when the observation of seismic waves have received great attention. With the acceleration of the construction of “four modernizations” in our country and the increase of large blasting projects, it has provided extremely favorable conditions for carrying out deep structure research.