BEDROCK EXPLORATION METHOD AND BEDROCK EXPLORATION SYSTEM AS WELL AS DRILLING DATA CORRECTION DEVICE FOR BEDROCK EXPLORATION

摘要

PROBLEM TO BE SOLVED: To provide a bedrock exploration method that can perform a suitable evaluation in any of an evaluation of the hard soft rock of bedrock and an evaluation of rock quality such as a discontinuous layer, in the bedrock exploration method for exploring a situation of target bedrock, based on information obtained from a percussion drill in drilling.SOLUTION: A bedrock exploration method includes the steps of: drilling target bedrock S by the drilling with a percussion drill 10 and determining hardness and softness of the bedrock S based on the drilling speed (step S4); also, determining properties of the bedrock S based on a rotary pressure (step S5); and classifying ground classification based on the relationship of the determination results of both (step S6, 7).