UID:
kobvindex_GFZ20210210134041
Format:
v, 32 Seiten
,
Illustrationen
Series Statement:
CRREL Report 81- 4
Content:
Abstract: Eight sites along the trans-Alaska pipeline from the Denali Fault to Fairbanks were selected for pipeline and pipeline support movement studies. Four measurement surveys were conducted, starting before oil pumping operations began up to September 1978, to determine the lateral and longitudinal pipe movement due to the thermal expansion of elevated sections of the pipeline, the tilt of the vertical support members (VSM's), and the changes in relative elevation of the support crossbeams. A maximum lateral and longitudinal motion of the pipe of 13 3/8 in. and 2 13/16 in. respectively were measured up to September 1978. Tilt data for 180 VSM's showed little change over a one-year period, with only S VSM's tilting more than 0.5 °. Relative elevation measurements showed insignificant changes for two sites compared over a one-year period. Comparisons of our data with as-built elevations at 8 sites show a few large differences that cannot be readily explained. In general the pipeline and its supports, at least at the sites studied, show minimal movement and activity.
Note:
CONTENTS
Abstract
Preface
Introduction
Measurement technique
Pipeline movement
Vertical support member tilt
Relative elevations of pipe support crossbeams
Results and discussion
Pipeline movement
Vertical support member tilt
Relative elevations
Summary
Literature cited
Appendix A. Lateral, longitudinal and horizontal pipe movement
Appendix Β. Tabulation of movement measurements
In:
CRREL Report, 81-04
Language:
English
Keywords:
Forschungsbericht
URL:
https://hdl.handle.net/11681/9484
