Borehole Sediment Samples: Canterbury Museum
Eight white corflute boxes of sediment samples from the borehole drilled adjacent to the Canterbury Museum Rolleston Avenue facade following the 22 February 2011 earthquake. Project number 52160, Bore hole BH02
These sediment samples are from machine drilled borings taken from the land near the Rolleston Avenue facade of Canterbury Museum. The samples indicate that sand, silt and gravel are the prominent types of sediment that the Museum is built upon and demonstrate how they appear in different layers throughout the borehole. These tests were taken in order to determine the type of ground the Museum is located upon and to assess the risks that could be expected during future earthquakes. This would then enable the building to be structurally secured against these risks. In order to gain this information, the borings which supplied the samples were drilled to depths of between 25.0m and 25.9m below ground level using a sonic rig drill.