Contemporary in situ stress determinations at three sites in Scotland and northern England |
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| Institution: | 1. Clinical Investigation Laboratory, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México, D.F., México;2. Department of Neurochemistry, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México, D.F., México;3. Nerve and Muscle Clinic, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México, D.F., México;4. Department of Neurophysiology, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México, D.F., México;1. Society of Rock Mechanics and Engineering Geology, Singapore, Block 102, #03-275, Aljunied Crescent 380102, Singapore;2. Faculty of Engineering, China University of Geosciences, Wuhan, Hubei 430074, China;3. Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China;4. Department of Natural Resources and Environmental Engineering, University of Vigo, Spain |
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| Abstract: | During 1987, in situ stress measurements using two overcoring techniques (doorstopper and triaxial strain cell) were made in England and Scotland as part of the former SFB 108 Project ‘Stress and Stress Release in the Lithosphere’ at Karlsruhe University. The results for three of the test sites—Spittal in Caithness, Gartur in the Midland Valley of Scotland and at Burton in Cumbria—are reported. Complementary studies on cores from Gartur using portable ASR equipment are included. The maximum horizontal stress orientations agree closely with those seen in the general contemporary stress field in NW Europe. These results confirm that, in favourable circumstances, these shallow methods offer effective approaches to the acquisition of reliable contemporary stress information, whether derived from boreholes or rock cores. |
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