Comparison of horizontal ground displacements in Avonside area, Christchurch from air photo, LiDAR and satellite measurements regarding pipeline damage assessment

Regional scale probabilistic procedure for estimating lateral spread displacements

“…Christchurch CPTs, DEMs, event-specific depth to groundwater models, and liquefaction observations and interpretations are provided in the New Zealand Geotechnical Database (NZGD) [38] and papers by Refs. [39][40][41][42][43][44]. This study relied primarily on the datasets provided in the NZGD [38] and the Bradley et al [39] CPT dataset.…”

“…This proposed procedure estimates the Prob LDI=0 is significantly higher during the Darfield earthquake compared to the Christchurch earthquake, which is consistent with field observations of liquefaction severity (e.g., Refs. [18,38,40,43,44,48]). Correspondingly, the estimated LDI values are much higher for the Christchurch earthquake compared to the Darfield earthquake, which is also consistent with observations [38].…”

Development and Validation of Fragility Functions for Buried Pipelines Based on Canterbury Earthquake Sequence Data

“…Utilizing the Christchurch liquefaction database, Van Ballegooy et al (2015) compared different liquefaction triggering procedures coupled with several liquefaction severity metrics, showing that the use of different models could yield significantly different results. Toprak et al (2018) assessed the influence of the ground strains and displacement estimates gathered from LiDAR 4 m, LiDAR 56 m, air photography, and satellite imagery on pipe vulnerability assessment. Most of these data sets as well as the raw conical penetration test data can be found on MBIE and EQC (2019).…”