关键词: 官田隧道, 岩爆特征, 地质条件, 地应力

Abstract: Rock burst is a common geological hazard and it might significantly threaten the life of construction workers and safety of the equipment. There are many research works have been conducted worldwide but the limited results are obtained due to the complexity of the rock burst problems. The high geostress and its induced geological hazards (such as rock burst) are the commonly encountered problems in the construction. The measurement of the geostress is one of the important factors for rock burst and other geological hazards prediction in the tunnel excavation. This paper introduces the initiation as well as the development of the rock burst in the tunnel excavation. The reasons for the rock burst in Guantian Tunnel are explored from the geological conditions and the geo-stress measurement. Measures that can prevent the rock burst are also proposed.

Key words: Guantian Tunnel, Rock Burst Characteristics, Geological Conditions, Geo-Stress