MODEL SPECIFICATION FOR PRESTRESSED GROUND ANCHORS

By: Material type: TextTextPublication details: HONG KONG: ENGINEERING DEVELOPMENT DEPARTMENT, 1984Description: 127P; ILLUSTSubject(s):
Contents:
Glossary and symbols. 1.1 Glossary of terms. 1.2 Definition of symbols. 1.2.1 Materials. 1.2.2 Dimensions. 1.2.3 Forces. 1.2.4 Deformations. 1.2.5 Factor of safety. 2. Preamble. 2.1 Drawings. 2.2 General requirements. 2.2.1 Permanent anchors. 2.2.2 Temporary anchors. 2.3 Contractor's responsibilities. 3. Materials. 3.1 General requirements. 3.2 Tendons. 3.3 Cement grout. 3.3.1 Cement. 3.3.2 Water. 3.3.3 Additives and admixtures. 3.4 Greases. 3.5 Plastics. 3.6 Metal ducting. 3.7 Rubber rings. 3.8 Other materials. 4. System requirements. 4.1 Corrosion protection for permanent anchors. 4.2 Corrosion protection for temporary anchors. 4.2.1 General. 4.2.2 Anchorage body. 4.2.3 Design free anchor length. 4.2.4 Protection cap. 4.3 Systems components. 4.3.1 General. 4.3.2 Anchorage body. 4.3.3 Spacers and centralisers. 4.4 Suitability test. 4.5 Extended acceptance and acceptance tests. 4.6 Monitoring. 4.6.1 Requirements for monitoring. 4.6.2 Programme. 4.6.3 Procedure. 4.6.4 Monitoring records. 5. Anchor installation. 5.1 Drilling. 5.2 Water testing. 5.3 Insertion of Anchor. 5.4 Cement grouting. 5.4.1 Water cement ratio. 5.4.2 Bleed. 5.4.3 Strength. 5.4.4 Fluidity. 5.4.5 Grout mixing. 5.4.6 Grout injection equipment. 5.4.7 Grouting procedure. 5.4.8 Grouting records. 5.5 Fitting anchor head. 5.6 Stressing. 5.6.1 General. 5.6.2 Safety. 5.6.3 Equipment. 5.6.4 Calibration. 5.6.5 Maximum load. 5.6.6 Programme. 6. Suitability tests. 6.1 General requirements. 6.2 Measuring accuracy. 6.3 Suitability test procedure. 6.4 Test records. 6.5 Assessment of suitability test. 6.5.1 Test conditions. 6.5.2 Determination of plastic extension. 7. Extended acceptance and acceptance tests. 7.1 General requirements. 7.2 Measuring accuracy. 7.3 Extended acceptance test procedure. 7.4 Test records. 7.5 Assessment of extended acceptance test. 7.5.1 Test conditions. 7.5.2 Determination of plastic extension. 7.6 Accepting test procedure. 7.7 Test records. 7.8 Assessment of acceptance test. 7.8.1 Test conditions. 7.8.2 Determination of plastic extension. 8. Distressing. 9. Tables. 10. Figures.
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Monograf JPS HQ Library Main Library General Collections GEOT.SOIL 624.131 BRI (Browse shelf(Opens below)) 1 Available 1000000553

Glossary and symbols. 1.1 Glossary of terms. 1.2 Definition of symbols. 1.2.1 Materials. 1.2.2 Dimensions. 1.2.3 Forces. 1.2.4 Deformations. 1.2.5 Factor of safety. 2. Preamble. 2.1 Drawings. 2.2 General requirements. 2.2.1 Permanent anchors. 2.2.2 Temporary anchors. 2.3 Contractor's responsibilities. 3. Materials. 3.1 General requirements. 3.2 Tendons. 3.3 Cement grout. 3.3.1 Cement. 3.3.2 Water. 3.3.3 Additives and admixtures. 3.4 Greases. 3.5 Plastics. 3.6 Metal ducting. 3.7 Rubber rings. 3.8 Other materials. 4. System requirements. 4.1 Corrosion protection for permanent anchors. 4.2 Corrosion protection for temporary anchors. 4.2.1 General. 4.2.2 Anchorage body. 4.2.3 Design free anchor length. 4.2.4 Protection cap. 4.3 Systems components. 4.3.1 General. 4.3.2 Anchorage body. 4.3.3 Spacers and centralisers. 4.4 Suitability test. 4.5 Extended acceptance and acceptance tests. 4.6 Monitoring. 4.6.1 Requirements for monitoring. 4.6.2 Programme. 4.6.3 Procedure. 4.6.4 Monitoring records. 5. Anchor installation. 5.1 Drilling. 5.2 Water testing. 5.3 Insertion of Anchor. 5.4 Cement grouting. 5.4.1 Water cement ratio. 5.4.2 Bleed. 5.4.3 Strength. 5.4.4 Fluidity. 5.4.5 Grout mixing. 5.4.6 Grout injection equipment. 5.4.7 Grouting procedure. 5.4.8 Grouting records. 5.5 Fitting anchor head. 5.6 Stressing. 5.6.1 General. 5.6.2 Safety. 5.6.3 Equipment. 5.6.4 Calibration. 5.6.5 Maximum load. 5.6.6 Programme. 6. Suitability tests. 6.1 General requirements. 6.2 Measuring accuracy. 6.3 Suitability test procedure. 6.4 Test records. 6.5 Assessment of suitability test. 6.5.1 Test conditions. 6.5.2 Determination of plastic extension. 7. Extended acceptance and acceptance tests. 7.1 General requirements. 7.2 Measuring accuracy. 7.3 Extended acceptance test procedure. 7.4 Test records. 7.5 Assessment of extended acceptance test. 7.5.1 Test conditions. 7.5.2 Determination of plastic extension. 7.6 Accepting test procedure. 7.7 Test records. 7.8 Assessment of acceptance test. 7.8.1 Test conditions. 7.8.2 Determination of plastic extension. 8. Distressing. 9. Tables. 10. Figures.

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