BS 7861-1:1996
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Strata reinforcement support system components used in coal mines Specification for rockbolting
Hardcopy , PDF
31-10-2007
English
15-10-1996
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Committees responsible
Foreword
1 Scope
2 References
3 Definitions
4 Steel rockbolts and components
5 Glass reinforced plastics (grp) rockbolts and
components
6 Resin
Annexes
A (normative) Tensile test on steel rockbolt
B (normative) Tensile test on rockbolt threaded end
C (normative) Shear test on rockbolt/resin system
D (normative) Determination of bond strength and
system stiffness
E (normative) Nut breakout torque test
F (normative) Tensile test to establish flattening and
pull-through loads of steel domed washer plates
G (normative) Alignment test
H (normative) Electrical resistance test on grp
material
J (normative) Fire resistance test on grp rockbolt
material
K (informative) An example of a tensile test on grp
rockbolts
L (normative) Tensile test to establish pull-through
loads of grp domed washer plates
M (normative) Determination of uniaxial compressive
strength (ucs) of resin
N (normative) Determination of elastic modulus of
resin
P (normative) Determination of creep of resin
Tables
1 Colour coding of rockbolts
2 Colour coding of resin
3 Resin setting times
M.1 Test specimen times
M.2 Loading rate
N.1 Test specimen prisms sizes
N.2 Loading levels for determination of elastic modulus
P.1 Loading levels for determination of creep
Figures
1 Components of a steel rockbolt assembly in situ
2 Profile of 21.7 mm steel rockbolt
3 Steel domed washer plate
4 Steel conical seat
B.1 Arrangement for tensile test on steel rockbolt
threaded end
B.2 Arrangement for tensile test on grp rockbolt
threaded end
C.1 Diagram of shear frame for rockbolt/resin system
C.2 Typical shear force/shear displacement graph
D.1 Arrangement for double embedment pull test
F.1 Load test arrangement for pull-through of steel
domed washer plate
F.2 Load/extension graph: domed washer plate test
G.1 Alignment of capacity of conical seat and domed
washer plate assembly
H.1 Test of electrical resistance
J.1 Draught-free cabinet for flame test
K.1 Bolted clamp for tensile test
L.1 Load test arrangement for grp components
N.1 Arrangement for elastic modulus test and creep
test: machine platen
P.1 Strain/time graph
List of references
Specifies dimensions and tests for steel and glass reinforced plastics (GRP) rockbolts and rockbolt assemblies and specifies resin materials and performance.
| Committee |
MRE/1
|
| DevelopmentNote |
Supersedes 95/709790 DC (10/2005)
|
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS EN ISO 9001:2015 | Quality management systems. Requirements |
| BS 3643-1:1981 | ISO metric screw threads Principles and basic data |
| BS EN 10025:1993 | Hot rolled products of non-alloy structural steels. Technical delivery conditions |
| BS EN 24034:1992 | Hexagon nuts. Product grade C |
| BS 6319-1:1983 | Testing of resin and polymer/cement compositions for use in construction Method for preparation of test specimens |
| BS EN 10002-4:1995 | Tensile testing of metallic materials Verification of extensometers used in uniaxial testing |
| BS 6319-2:1983 | Testing of resin and polymer/cement compositions for use in construction Method for measurement of compressive strength |
| ISO 10606:1995 | Steel for the reinforcement of concrete Determination of percentage total elongation at maximum force |
| BS EN ISO 9002:1994 | Quality systems. Model for quality assurance in production, installation and servicing |
| BS EN 10002-1:2001 | Tensile testing of metallic materials Method of test at ambient temperature |
| BS 6319-6:1984 | Testing of resin and polymer/cement compositions for use in construction Method for determination of modulus of elasticity in compression |
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