Geometrical Parameters’ Detection of Drill Hollow Bar Anchor

1. Geometrical parameters of drill hollow bar anchor’s installation should be detected, checked and accepted. Detection space should be less than 15m and detection number should be more than 3.
2. The main geometrical parameters include drill hollow bar anchor’s space and exposed length.
3. When confirming installation angles, graphometer can be used to measure azimuth angle of drill hole.
4. When handling fault detecting of exposed length, steel rulers can be used to measure, generally getting the maximum value.

Except geometrical parameters’ detection of drill hollow bar anchor, engineering’s steady state should be predicted in time to ensure the safety of operators, machines, materials and surrounding structures.

All these monitoring data have direct guiding significance for choosing reinforcing and supporting method, provide effective data for analyzing engineering supporting technology.