DEVICE SYSTEM AND METHOD FOR DYNAMIC TESTING OF GROUND SUPPORT BOLTS ANCHOR BOLTS OR ROCK BOLTS

摘要

A connector 100 and associated dynamic testing system 200 and method for testing rock bolts or rock anchors in situ. The connector is attached to a rock bolt/anchor and supports a hanging load via a shaft. The connector has a body of two halves 100a,100b retaining upper first 104 and lower second 116 connectors having respective curved surfaces 108,138. Each of the two halves has a curved inner surface 106,136 allowing limited relative rotational movement of the first and second connectors relative to the two halves when a load is applied. A load cell 132 and accelerometer 130 register the load applied to the rock bolt/anchor through the connector and any resulting movement of the rock bolt/anchor.