Who will do the tensile test of soil nails and anchors in foundation pit support construction?

The tensile test of soil nail and anchor rod in foundation pit support construction is a simple test. If you have the corresponding laboratory and have the qualification to do this test, you can take it to the laboratory, let the supervisor do the test together and sign the experimental report. If there is no laboratory, then take samples and send them to a qualified testing unit outside for outsourcing testing.

Non-destructive pull-out test of soil nails, according to Technical Specification for Building Foundation Pit Support (JGJ 120-99) and Technical Specification for Foundation Pit Soil Nail Support (CECS 96: 97), pull-out test is carried out under load.

There are two kinds of pullout tests of prestressed anchor cables, one is foundation test to determine the ultimate pullout bearing capacity of anchor cables, and the other is acceptance test to check whether the pullout bearing capacity of prestressed anchor cables can reach the design value. These two tests were carried out after the completion of hole-forming grouting for a period of time, and the design load has been tightened.