전력구 굴진율 설계에 대한 고찰 - DB 구축의 필요성

초록

Since 2005(107km), the cable tunnel which are the part of underground business in KEPCO has been annually increased about 6 km. Cable tunnel is constructed by mainly using a mechanical excavating equipment. Construction period and costs are determined by penetration rate of drilling equipment, performance of machine, soil conditions, and etc. Despite penetration rate is the most important factor in case of designing cable tunnel, penetration rate is only estimated by considering a single factor in KEPCO. So it is necessary to establish a prediction model of drilling performance considering the ground characteristic through database which reflect the actual excavation data(geotechnical factors, mechanical factors) in TBM machine.