| 摘要 |
PURPOSE:To incorporate an action measuring method of an effective discontinued surface and a shore design analysing method in a series of stages of work in a practical tunneling method and to execute shores applicable to local conditions of a bedrock by the discontinued surface, etc., in accordance with a shore design based on bedrock action evaluation in the original position and action analysis by shores. CONSTITUTION:After the excavation 2 of underground space such as a tunnel, etc., in a bedrock 1, and a displacement meter 9 is provided to a joint 7 in an examination hole well 8 directly bored in a position of a discontinued surface 7 such as a joint, etc., forecasting the effect to a bedrock action to measure three dimensional deformation. Shores are constructed immediately in accordance with the design of reinforced shores 10 based on action analysis and shore analysis of a discontinued bedrock using data mentioned above. According to the stage of work, effective execution combining the reinforced shores 10 with shores such as specific designed lock bolts 3 and grouts 6 can be made without obstructing practical stage of work. |
