期刊论文

Chen, Changfu(cfchen@hnu.edu.cn)

英文

Canadian Geotechnical Journal

0008-3674

2022

59

9

1587-1601

10.1139/cgj-2021-0220

This research was sponsored by the National Natural Science Foundation of China (grant numbers: 41572298, 51978254, and 51908201) and the Natural Science Foundation of Hunan Province (grant number: 2020JJ5024). The authors appreciate their financial support.

本校为其他机构

Anchoring force loss is critically concerned for the in-service performance of prestressed ground anchors. This time-dependent loss of pretension exerted at the anchor head is caused primarily by stress relaxation, which integrally manifests the rheological properties of the anchor and the geomaterial in which the anchor is embedded. A load-transfer modeling framework was established to derive the time-dependent anchoring force response. The modeling parameters were directly calibrated via element-scale pullout stress relaxation test using a sp...