标题：Method of Study on Drilling Parameter of Strata Obtained by Photoelectric Encoder
作者：Tian, Hao; Li, Shucai; Xue, Yiguo; Li, Haiyan; Ning, Kai
作者机构：[Tian, Hao; Li, Shucai; Xue, Yiguo; Li, Haiyan; Ning, Kai] Shandong Univ, Res Ctr Geotech & Struct Engn, Jinan 250061, Shandong, Peoples R China.
会议名称：2nd International Conference on Civil Engineering, Architecture and Building Materials (CEABM 2012)
会议日期：MAY 25-27, 2012
来源：PROGRESS IN CIVIL ENGINEERING, PTS 1-4
关键词：Drilling Parameter; Torque; Photoelectric encoder; Strata
摘要：According to complex geological environment of underground space, drilling parameters were obtained based on the research of drilling process. As a sensor for collecting the date of drilling parameter, photoelectric encoder was chosen to combine field test. The change curve of drilling depth with torque in different strata was collected successfully by using photoelectric encoder and can reflect the change of torque during drilling. It is found that there are different response characteristics in different strata, but these response characteristics show the certain orderliness.