Study on stability of HLW repository in the middle region of Shule river fault zone

The authors studies the geological features and stability of the middle region of Shule river fault zone by means of the interpretation of remote sensing images, geological researches and geophysical prospecting. The knowledge of Shule river fault zone is much improved. The structural plane features of the trunk fault of the middle region of Shule river fault zone are observed at hand-outcrop, and its mechanics character is preliminary determined as compression. The result of VLF electromagnetic measurement on this area is consistent with the result of the interpretation of remote sensing images, and geological researches. The knowledge of the space distribution law of the middle region of Shule river zone.is confirmed Some deep geological information is obtained from analysing and studying deep crust structure and earth temperature background by use of the regional geophysical and earth temperature date. The comment on stability of the middle region of the Shule river fault zone indicates that its middle region and the north mountain which is located at the north of Shule river fault zone have better stability. It is a perfect area for being a site of HLW repository