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Keywords: Anchor
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-019
... ABSTRACT: Ground support comprises a wide field of geotechnical engineering. Therefore some special topics are selected: Reinforcement and dowelling of soil and rock by nails, anchors, piles and jet-grouting. Thus, the ground becomes more or less a compound body which locally can be considered...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-424
... with prestressed anchors. There was heavy rainfall in this area after the completion of excavation and reinforcement. Progressive failure occurred in the prestressed anchors with about 30% of the installed anchors broken. Tension cracks and main scarps occurred 60m behind the crest and the former occurred within...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-558
... can not be estimated accurately with classical analytical procedures. The governing movements in such a system are the displacement and deformation of the soil wedge between the back of the wall and the middle point of the fixed length of the ground anchors. The movement of the soil wedge is primarily...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-490
...- lieving part of the earth pressure acting on the uphill side of the tower. The Ò2nd stabi- lisation Ó followed in 1968, in which the tower foundation was anchored with 20 m long anchors with a capacity of 300 kN. Three horizontal wells were bored under the foundations in order to dewater the soil. Through...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-559
... make a number of estimates for Young's modulus, which are likely to vary from lowest to highest by as much as a factor of 20. model prediction prediction Anchor construction displacement input parameter pressuremeter predictive analysis Upstream Oil & Gas judgement model parameter...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-623
... & Controls Building as shown in Figure 1. It also includes construction of pipes of varying sizes and materials connecting structures and existing sewerage facilities. Downstream Oil & Gas water management flow gradient Influent Pump Station Anchor water level Oregon ip excavation inflow...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-601
... ABSTRACT: This paper details the design of a multilevel anchored diaphragm wall which forms part of a cut and cover tunnel for the Eastern Distributor Motorway in Sydney. The paper also presents settlement predictions and proposed monitoring program for the structure, as well as settlement...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-607
... of the entrance portal area to the new Domain Tunnel. Upstream Oil & Gas Punt Road Interchange Anchor northern abutment soil block Melbourne displacement inclinometer monitoring knowledge management abutment Bridge Morell Bridge northern bridge abutment excavation close horizontal survey...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-026
...RECENT ADVANCES IN GROUND ANCHOR AND GROUND REINFORCEMENT TECHNOLOGY WITH REFERENCE TO THE DEVELOPMENT OF THE ART Anthony D. Barley1 and Chris R. Windsor2 ABSTRACT The recent advances in ground anchor technology and the related techniques of cable bolting and rock bolting are reviewed. Collectively...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-193
... ABSTRACT: The design of many engineering structures require foundation systems to resist vertical uplift or horizontal pullout forces. These types of structures, which may include transmission towers or earth retaining structures, are commonly supported directly by soil anchors. To date...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-194
... ABSTRACT: An experimental study was undertaken to identify the mechanisms by which plate anchors in sand fail when subjected to upward vertical tensile loadings. The aim of the study was to investigate the cause of oscillations in the pullout resistance of circular anchors, observed...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-372
... ABSTRACT: The three-dimensional elasto-plastic shear strength reduction FEM is used to evaluate the stability of slopes reinforced with piles or anchors in a general elasto-plastic FEM frame, where the soil-reinforcement interaction is simulated with zero-thickness elasto-plastic interface...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-007
... Level it was necessary to mobilise the in- herent strengths of the rock formations by contain- ment' to attain a triaxial rather than uniaxial stress state. The in flue nee of con ventional bolting, long anchor and, meshing and lacing techniques had been unable to mobilise sufficient resistive forces...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-035
.... Upstream Oil & Gas borehole subsidence extensometer experiment knowledge management coal peak particle velocity Anchor case study extensometer hole strata stabilisation burial depth Drilling equation metals & mining blast hole hole 2 monitoring damage zone vibration Static...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-014
... which was confirmed when minor rock slides occurred in two of the cuts. The geotechnical investigation indicated that simple planar failure and block toppling were the mechanisms of slope instability. Rock bolts were used to stop block toppling and rock anchors were installed to stabilise the exposed...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-022
... stress analysis of the Thissavros powerhouse cavern on the Nestos river in Greece is presented, along with a complete design of the support measures on the sidewalls and roof of the cavern. The analysis indicates the length of the prestressed anchors, the prestress force and the inclination...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-032
... SUMMARY: Rock anchors are the right means to secure large underground chambers during the excavation without the use of support structures. After excavation a supporting Concrete lining is not required as the rock in connection with the prestressed anchors will create a support system...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-125
... Upstream Oil & Gas displacement viscoelastic medium Anchor linear viscoelasticity elasticity disc anchor region viscoelasticity hydraulic fracturing geological material characteristic Selvadurai Reservoir Characterization Engineering creep susceptible geological media anchor...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 27–29, 1978
Paper Number: ISRM-IS-1978-034
...SAFETY AND RELIABILITY IN MANUFACTURE OF ROCK ANCHORS THOMAS F. HERBST,Dr., c/o Oyckarhoff and Widmann A G, Erdinger Landstrabe 1,Munchen 81, Fad. Rap. Germany Sumrr.arv Special consideration must be given to the design, choice of mate- rials and components and to quality cantrol during manufacture...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 27–29, 1978
Paper Number: ISRM-IS-1978-028
... worthy - of mention: A softening of the slope angle, by excavation, or a reinforcement using - pre-stressed anchors. The stability analysis for both solutions gave rise to the fol - lowing figures, based on the hypothesis of a rapid draw -down of the reservoir to Ie - vel 790: Slope angle excavation...

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