Title:
支持層到達判定方法及び判定支援システム
Document Type and Number:
Japanese Patent JP6874378
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a support layer arrival determination method and a determination assist system capable of determining reaching of drilling to support layer.SOLUTION: A drilling management system 20 has a control unit 31 that controls a display unit 26 to display an output screen which has display areas for displaying the following graphs including: a depth-lapsed time graph; a depth-integral current value graph; a depth-horizontal direction vibration analysis graph; and a depth-vertical direction vibration analysis graph. The control unit 31 controls to output a columnar diagram and a depth-N value graph of decision criteria information related to the depth in each graph on the output screen. The control unit 31 adds a drilling depth in a drilling time zone to the depth-lapsed time graph, and adds an integral current value related to the drilling depth, and vibration characteristic values in vertical and horizontal directions to the respective graphs.SELECTED DRAWING: Figure 1
Inventors:
Yuki Hagiwara
Hiroaki Kojima
Naoko Suzuki
Mamoru Sahara
Yoshihiko Morio
Kazuhiro Watanabe
Hiroaki Kojima
Naoko Suzuki
Mamoru Sahara
Yoshihiko Morio
Kazuhiro Watanabe
Application Number:
JP2017003677A
Publication Date:
May 19, 2021
Filing Date:
January 12, 2017
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
E02D1/00
Domestic Patent References:
| JP2000019261A | ||||
| JP2000160550A | ||||
| JP5280031A | ||||
| JP2000337070A |
Foreign References:
| KR1020060031668A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda