April 2019

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>  A recent intervention on a site in southern Brazil shows the consistency of the values of tensile forces obtained from the vibration analysis tests with the values deduced from the calculation of earth pressure on the retaining wall (photo attached).


Earth pressure calculation                        From the dynamic stiffness                                                                                       Column  1                     Column  2          13,54t                                                           12,88t                            13,83t      

23,35t                                                           26,40t                            22,79t

The interpretation of the non-destructive testing is improved when it relies on static tests performed in conjunction with dynamic tests. The tests on the anchoring rods are adapted to semi-infinite massifs.

Rincent BTP Services SAS

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