Design and application of experimental frame used for 'field tracer test of radionuclide migration in aquifer'

The device named as 'experimental frame', which was used for 'field tracer test of radionuclide migration in aquifer', is introduced in this paper. Design considerations of experimental frame, technique problems in application and experimental effects are depicted in the paper. It is required in the design that aquifer medium and flow field were essentially not disturbed when frame was inserted into test zone. Function of frame is not only to limit the migration of tracers in a certain range, but also to ensure that the aqueous medium can be taken out safely after completion of the test and three-dimension soil samples could be obtained