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Sinkholes: when the ground fights back after centuries of exploitation

By Arya Assadi Langroudi, Senior Lecturer in Geotechnical Engineering, University of East London
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First, it swallowed a car. A few hours later, two terraced buildings. At 9pm on January 20, a crater measuring 4 sq metres appeared in Walmer Street, Manchester. Another sinkhole shocked local Scottish walkers, swallowing


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