This dataset provides further details on the heave monitoring data, the site investigation data, and the calculations presented in the paper "Twenty-one years of heave monitoring in London Clay at Horseferry Road Basement". The dataset is available at: https://doi.org/10.17863/CAM.27523

The original data and scans are provided by the courtesy of Arup Geotechnics who kindly agreed to make this set of data publicly available for the benefit of industry and society.

Table of contents
* A: Site investigation data, 1989
o A1: Site investigation cross-sections 
o A2: Graphs of soil test results
o* Piezometric profile (Note: Trendline doubtful; see paper body for updated interpretation)
o* Contours of London Clay surface
o* Standard penetration test profile
o* Atterberg limits for London Clay
o* Plasticity chart for London Clay
o* Undrained shear strength for London Clay
o* Results of sulphate and pH tests
o A3: Undrained shear strength data and calculations
o A4: Piezometric profile with interpreted trendline
o A5: Standard penetration test data and calculations
* B: Heave monitoring data 1967-89 and calculations
* C: VDISP back-analysis of heave monitoring data at Horseferry Road, 1993
* D: Site investigation factual report, 1989