Title:
SURVEYING METHOD FOR SHIELD EXCAVATOR
Document Type and Number:
Japanese Patent JP3542146
Kind Code:
B2
Abstract:
PURPOSE: To provide the surveying method for a shield excavator, wherein the position of the shield excavator in a shield construction can be surveyed with good efficiency and with good accuracy.
CONSTITUTION: Tow mirrors 7 which are arranged on an inside truck 24B of a measuring auxiliary truck 24 coupled to a shield excavator 1 are collimated by an automatic tracking distance-measuring and angle-measuring apparatus 2 which is arranged on an inside truck 22B of a measuring main truck 22 coupled to the front of the measuring auxiliary truck 24. The three-dimensional coordinates of the automatic tracking distance-measuring and angle-measuring apparatus 2 are surveyed. After that, the position of the shield excavator 1 is surveyed while a main mirror 3 arranged on its back is collimated by the automatic tracking distance-measuring and angle-measuring apparatus. After an excavating operation covering the length of the prescribed number of segments 42 by the shield excavator 1 has been finished, either the inside truck 22B or 24B for the measuring main truck 22 or the measuring auxiliary truck 24 is moved to the front, the two mirrors 7 on measuring auxiliary truck 24 and the main mirror on the back of the shield excavator are collimated, and individual distances and angle are measured respectively.
Inventors:
Minoru Masuda
Kimiji Nagaki
Zhou Zhou
Kimiji Nagaki
Zhou Zhou
Application Number:
JP14211793A
Publication Date:
July 14, 2004
Filing Date:
June 14, 1993
Export Citation:
Assignee:
Toa Construction Industry Co., Ltd.
International Classes:
E21D9/06; G01C15/00; (IPC1-7): G01C15/00
Domestic Patent References:
| JP3180172B2 | ||||
| JP6213662A | ||||
| JP5288548A | ||||
| JP4279813A |
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita
Takashi Noguchi
Kazuhiko Saishita