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摘要

Method for lining rock chambers 11 and for shielding these against external electrical fields, the lining consisting at least partially of a shell structure of sprayed concrete. To form the lining for the rock chambers 11, i.e. its roof arch 20 and walls 25, and preferably also its bottom 24, a contiguous metal shuttering 15 is formed. The roof and wall mould 17, 18 is then coated with seamless reinforced sprayed concrete, and the shuttering 15 is left in place to form a surrounding shield. IMAGE