history of the sprayed concrete lining methodpart ii

History of the sprayed concrete lining method—part II ...

Feb 01, 2003  The sprayed concrete lining method. As mentioned in Part I, the combined use of rock bolting, reinforcing nets and sprayed concrete has been ‘standard practice’ in the McIntyre Mine in Ontario, Canada, since approximately 1930 ( Keeley, 1934, Anonymous, 1957 ). Great importance was attached to systematic rock bolting.

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History of the sprayed concrete lining method—part II ...

History of the sprayed concrete lining method—part II: ... sprayed concrete and anchors has led to the ‘sprayed concrete lining’ method in the 1950s. In concluding, it is demonstrated that the so-called ‘New Austrian Tunnelling Method’ (NATM), which has been propagated since 1963, is in many respects borrowed and has created much ...

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History of the sprayed concrete lining method—part I ...

Feb 01, 2003  7. Sprayed concrete lining. The development of shotcrete technology started with the invention of the ‘cement-gun’ by the American taxidermist C.E. Akeley. He obtained a patent (No. 991 814) in 1911 for an ‘apparatus for mixing and applying plastic or adhesive materials’, which was called a

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10.1016/S0886-7798(03)00006-3 DeepDyve

Jun 11, 2020  Only gradually were steel supports, then shotcrete, followed by anchors and finally, the systematic combination of these support measures on a broad scale, introduced. 2 Rock bolting technology Our research work reveals that the history of bolting began with a patent specification (no. 302909) submitted by Stephan, Fröhlich and Klüpfel in ...

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Study on the supporting time of the secondary lining of ...

Jan 01, 2021  Study on the supporting time of the secondary lining of the highway tunnel with weak surrounding rock. Jiaqing Feng 1 ... 3 Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an, Shanxi ... Kalman K. 2003 History of the sprayed concrete lining method—part ii: milestones up to the 1960s Tunn. Undergr. ...

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Tunnelling and Underground Space Technology Vol 18 ...

History of the sprayed concrete lining method—part I: milestones up to the 1960s. Kalman Kovári. Pages 57-69 Download PDF. ... Research article Full text access History of the sprayed concrete lining method—part II: milestones up to the 1960s. Kalman Kovári.

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Improved Performance of Rock Bolts using Sprayed Polyurea ...

Dec 21, 2014  10%  Kovari K (2003) History of the sprayed concrete lining method-part II: milestones up to the 1960s. Tunn Undergr Space Technol 18:71–83. Article Google Scholar Li C, Lindblad K (1999) Corrosivity classification of the underground environment.

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Study on the supporting time of the secondary lining of ...

Jan 01, 2021  Study on the supporting time of the secondary lining of the highway tunnel with weak surrounding rock. Jiaqing Feng 1 ... 3 Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi'an, Shanxi ... Kalman K. 2003 History of the sprayed concrete lining method—part ii: milestones up to the 1960s Tunn. Undergr. ...

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Geschichte der. History of the Sprayed Concrete Lining ...

History of the Sprayed Concrete Lining Method, Part IV Milestones in Developement up to 1960 Prof. Dr. K. Kovári The previous parts of the article (Parts I III, see Tunnel 1/2002 to 3/2002) showed how the sprayed concrete lining method developed in the 1950s to become a

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An experimental investigation on mechanical property and ...

Feb 08, 2017  Kovári, K., 2003a, History of the sprayed concrete lining method—part I: milestones up to the 1960s. Tunnelling and Underground Space Technology, 18, 57–69. Article Google Scholar Kovári, K., 2003b, History of the sprayed concrete lining method—part II: milestones up to the 1960s.

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NATM is it New, Austrian or a Method? Geotechpedia blog

Kovari K., (2003). “History of the sprayed concrete lining method – part II: milestones up to the 1960s”, Tunnelling and Underground Space Technology

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Damage Analysis of Waterproof Layer in Composite Tunnel ...

[3] K. Kalman: History of the sprayed concrete lining method-part II: milestones up to the 1960s. Tunnelling and Underground Space Technology, Vo; 18, No. 1(2003), pp.71-83. DOI: 10.1016/s0886-7798(03)00006-3

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Finite Element Analysis of Curvature Precast Polymer Panel ...

[1] Kovári, K., History of the sprayed concrete lining method-part II: milestones up to the 1960s. Tunnelling and Underground Space Technology, 2003. 18(1): pp.71-83. DOI: 10.1016/s0886-7798(03)00006-3

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Nonlinear Mechanical Analysis of Polymer Precast Panel for ...

History of the sprayed concrete lining method-part II: milestones up to the 1960s. [doi: DOI: 10. 1016/S0886-7798(03)00006-3]. Tunnelling and Underground Space Technology, 18(1), 71-83.

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An investigation into the thermal conductivity of ...

Oct 15, 2016  Sprayed concrete. Sprayed concrete can be traced back to 1911 when it was known as “gunite” . It is pneumatically projected through a nozzle where a chemical accelerator is added . In this way layers may be built up to form a tunnel lining. Sprayed concrete has a different mix design compared to conventional in situ poured concrete.

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Analytical study on pretensioned bolt-cable combined ...

May 14, 2020  Ovári K. History of the sprayed concrete lining method—Part II: Milestones up to the 1960s. Tunn Undergr Sp Tech, 2003, 1: 71–83. Google Scholar 3. Hoek E, Brown E T. Underground Excavations in Rock. Boca Raton (FL): CRC Press, 1980. Google Scholar 4. Windsor C R. Rock reinforcement systems.

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High-density polyurethane rigid foam usability as liner ...

Jun 01, 2020  Kovari K (2003a) History of the sprayed concrete lining method-part I: milestones up to the 1960s. Tunn Undergr Sp Tech 18:57–69. Article Google Scholar Kovari K (2003b) History of the sprayed concrete lining method-part II: milestones up to the 1960s. Tunn Undergr Sp Tech 18:71–83

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Failure mechanism of bolting support and high-strength ...

Feb 03, 2016  KOVÁRI K. History of the sprayed concrete lining method—Part I: Milestones up to the 1960s [J]. Tunnelling and Underground Space Technology, 2003, 18(1): 57–69. Article Google Scholar [2] KOVÁRI K. History of the sprayed concrete lining method—Part II

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10.1016/S0886-7798(03)00006-3 DeepDyve

Jun 11, 2020  Only gradually were steel supports, then shotcrete, followed by anchors and finally, the systematic combination of these support measures on a broad scale, introduced. 2 Rock bolting technology Our research work reveals that the history of bolting began with a patent specification (no. 302909) submitted by Stephan, Fröhlich and Klüpfel in ...

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Tunnel Support Geotechpedia blog

Kovari K., (2003). “History of the sprayed concrete lining method – part II: milestones up to the 1960s”, Tunnelling and Underground Space Technology

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Failure mechanism of bolting support and high-strength ...

Feb 03, 2016  History of the sprayed concrete lining method—Part I: Milestones up to the 1960s [J] ... History of the sprayed concrete lining method—Part II: Milestones up to the 1960s [J] KovÁri, K. Mechanism study on strength enhancement for the rocks surrounding roadway supported by bolt [J] Hou, C-j; Gou, P-feng.

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Geschichte der. History of the Sprayed Concrete Lining ...

History of the Sprayed Concrete Lining Method, Part IV Milestones in Developement up to 1960 Prof. Dr. K. Kovári The previous parts of the article (Parts I III, see Tunnel 1/2002 to 3/2002) showed how the sprayed concrete lining method developed in the 1950s to become a

get price

Nonlinear Mechanical Analysis of Polymer Precast Panel for ...

History of the sprayed concrete lining method-part II: milestones up to the 1960s. [doi: DOI: 10. 1016/S0886-7798(03)00006-3]. Tunnelling and Underground Space Technology, 18(1), 71-83.

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Finite Element Analysis of Curvature Precast Polymer Panel ...

[1] Kovári, K., History of the sprayed concrete lining method-part II: milestones up to the 1960s. Tunnelling and Underground Space Technology, 2003. 18(1): pp.71-83. DOI: 10.1016/s0886-7798(03)00006-3

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High-density polyurethane rigid foam usability as liner ...

Jun 01, 2020  Kovari K (2003a) History of the sprayed concrete lining method-part I: milestones up to the 1960s. Tunn Undergr Sp Tech 18:57–69. Article Google Scholar Kovari K (2003b) History of the sprayed concrete lining method-part II: milestones up to the 1960s. Tunn Undergr Sp Tech 18:71–83

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An investigation into the thermal conductivity of ...

Oct 15, 2016  Sprayed concrete. Sprayed concrete can be traced back to 1911 when it was known as “gunite” . It is pneumatically projected through a nozzle where a chemical accelerator is added . In this way layers may be built up to form a tunnel lining. Sprayed concrete has a different mix design compared to conventional in situ poured concrete.

get price

Analytical study on pretensioned bolt-cable combined ...

May 14, 2020  Ovári K. History of the sprayed concrete lining method—Part II: Milestones up to the 1960s. Tunn Undergr Sp Tech, 2003, 1: 71–83. Google Scholar 3. Hoek E, Brown E T. Underground Excavations in Rock. Boca Raton (FL): CRC Press, 1980. Google Scholar 4. Windsor C R. Rock reinforcement systems.

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Failure mechanism of bolting support and high-strength ...

Feb 03, 2016  History of the sprayed concrete lining method—Part I: Milestones up to the 1960s [J] ... History of the sprayed concrete lining method—Part II: Milestones up to the 1960s [J] KovÁri, K. Mechanism study on strength enhancement for the rocks surrounding roadway supported by bolt [J] Hou, C-j; Gou, P-feng.

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Benoit Inbye Engineering

A 20-year history of stress and strain in a shotcrete primary lining. Proceedings of the 8th Int. Symp. Sprayed Concrete – Modern use of wet mix sprayed concrete for underground support, Trondheim, Norway, 11th-14th June 2018. Jones, B. D., Runtemund, K. Ahuja, V. (2017). European case studies of shotcrete strength monitoring using thermal ...

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Lösungen zur Spritzbetonsicherungen im Vortrieb ...

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(PDF) APPLICATION OF ROCK MASS CLASSIFICATION SYSTEMS

In this thesis, the results of a number of rock mass classification systems applied to Dim-highway tunnel study area are presented. The tunnel ground was classified according to Rock Mass Rating (RMR), Modified Rock Mass Rating (M-RMR), Rock Mass

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Interaction between two neighboring tunnel using PFC2D ...

Jul 10, 2019  In this paper, the interaction between two neighboring tunnel has been investigated using PFC2D. For this purpose, firstly calibration of PFC was performed using Brazilian experimental test. Secondly, various configuration of two neighboring tunnel was prepared and tested by biaxial test. The maximum and minimum principle stresses were 0.2 and 30 MPa respectively.

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Chrys Steiakakis Geotechpedia blog

Kovari K., (2003). “History of the sprayed concrete lining method – part II: milestones up to the 1960s”, Tunnelling and Underground Space Technology

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(PDF) ASM INTERNATIONAL ® The Materials Information ...

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(PDF) Advanced Construction Technology 4th Edition by Roy ...

Advanced Construction Technology is a development of the relatively elementary construction detailed in the associated volume, Construction Technology. This volume augments the associated volume with further topics relating to domestic buildings and

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