Norm

ASTM D7401-08

Standard Test Methods for Laboratory Determination of Rock Anchor Capacities by Pull and Drop Tests

54,27

Over deze norm

Status Definitief
Aantal pagina's 7
Commissie D18.12
Gepubliceerd op 01-01-2008
Taal Engels

1.1 These test methods cover the quantitative determination of the working and ultimate static or dynamic capacities of full scale rock anchors. Dynamic capacities are determined to simulate rockburst and blasting conditions (1). The rock anchors are installed in steel pipe to simulate standard boreholes sizes. Rock anchor capacities are determined as a function of resin to steel bolt bond strength and steel bolt yield strength. These tests are not intended to determine rock anchor to borehole rock surface shear strength.

1.2 These test methods are applicable to mechanical, resin, or other similar anchor systems.

1.3 Two methods are provided to determine the capacities of rock anchors, as follows:

1.3.1 Method AUsing a horizontal hydraulically loaded pull test system.

1.3.2 Method BUsing a vertical dynamically loaded drop test system.

1.4 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Details

ICS-code 93.020
Nederlandse titel Standard Test Methods for Laboratory Determination of Rock Anchor Capacities by Pull and Drop Tests
Engelse titel Standard Test Methods for Laboratory Determination of Rock Anchor Capacities by Pull and Drop Tests

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