LEADING BODY AND BURIED PIPE ATTITUDE MEASURING METHOD AND DEVICE THEREFOR

摘要

PURPOSE: To measure the attitudes of a leading body and a following buried pipe row easily and efficiently at a low cost in a curve propulsive construction method of sewageworks, waterworks, or the like buried underground. ;CONSTITUTION: Outer cylinders 1 each of which has a diameter smaller than a buried pipe diameter 7 and almost the same length as the axial length of each buried pipe are insert-fixed to the inner walls of a row of plural buried pipes following a leading body 6, and connecting devices 8 are installed in the vertical or lateral positions of the outer cylinder end parts and made bendable. The spaced length of the respective outer cylinder connecting parts is measured by plural length measuring devices 2 installed in circumferentially uniform positions at one end faces of the respective outer cylinders, and the attitudes of the leading body 6 and the following buried pipe row are computed on the basis of the obtained spaced length data.;COPYRIGHT: (C)1996,JPO