Ground property evaluation method and ground property evaluation system in front of the face

摘要

PROBLEM TO BE SOLVED: To evaluate a ground property in front of a face while specifying a drilling position of a charge hole with relatively high accuracy under high construction safety, and a ground property evaluation method and a ground property evaluation system in front of the face. I will provide a. SOLUTION: The ground property evaluation method in front of a face is a setting step of setting a relative positional relationship of a plurality of drilling points in a face and a drilling order, and a drilling point to be drilled next to the face by a projector. The projection process of projecting, the drilling acquisition process of drilling a charged hole with a drilling device at the projected drilling point and acquiring machine data at the time of drilling, and the projection process and drilling acquisition process are repeated according to the drilling order. By collecting machine data at the time of drilling for each drilling point and linking the drilling point and the position information of the face, the position information of the drilling point is specified, and the drilling point with the position information is drilled. It has a data accumulation process for accumulating machine data at the time of drilling and an evaluation process for evaluating the ground properties based on the machine data at the time of drilling at each drilling point. [Selection diagram] FIG. 6