Tunneling Machine

basic design and principles of tunnels in rocks

KAMY is the worldwide leader in manufacturing hydraulic cutters, road headers, tunnel support systems, and other specialized machinery used in the tunneling, mining, and construction industries. Through KAMY’s years of experience and innovative thinking, we can provide custom engineered solutions for nearly any project requiring rock excavation or concrete demolition.

KAMY is the leading manufacturer of roadheaders in the weight class of 13-80 tons weight. Our roadheaders offer interchangeable cutter heads, both transverse and axial and are custom engraved for each project. Our hydraulic cutters are suitable for material with uniaxial compressive strength ranging from 500 to 25,000 pounds per square inch. All of our products can be utilized in a variety of applications from rock excavation, trenching, demolition and concrete, to underwater cutting, tunneling, and scaling.


a methodology for assessment of rock conditions and for rock construction design based on geological and ... To present the methodology we use basic data from the Geological Survey of Sweden (SGU) describing the ... matrix; principle descriptions of expected soil conditions and; estimates of tunnel inflow. The rock  ...

31_Tunnels_and_Shafts_in_Rock-USACE - TU Graz

30 May 1997 ... and guidance for the planning, design, and construction of tunnels and shafts in rock for civil works projects. Specific ... Corps of Engineers. (HQUSACE) elements, major subordinate commands, districts, laboratories, and field- operating activi- ..... lyzed, and principles of tunnel design that will lead to safe.

Analyisis of shallow tunnels construction in swelling grounds - RMZ

Swelling pressures of the rock as a result of chemical .... the tunnel invert. At the beginning the original basic design was based on dry rock conditions during construction. Furthermore, in the upper design stage it was planned inner lining of re- inforced .... Figure 5: Basic principle of tunnel support design in swelling ground.

Numerical simulations of tunnelling in soft rock under water pressure

11 Sep 2009 ... Herewith, a short review illustrates the basic principles governing the influence of ... Then, the main ways for the tunnel equilibrium analysis are ... exhaustive simulation is required in order to optimise the tunnel analysis and design. Thus, a 3D simulation of a mechanised tunnelling in soft rock under water.

Design of Standard Reinforcement classes for a new commuter train ...

ABSTRACT. A new commuter train tunnel under Stockholm City, is currently being designed. The main portion of the tunnel is planned to be constructed as an unlined rock tunnel. The standard rock reinforcement is intended to provide the stability for all non-critical sections of the tunnel. The rock mass was divided into four ...

Chapter 23 Tunnels - Department of Transport and Main Roads

Department of Main Roads. Chapter 23. Road Planning and Design Manual. Tunnels. May 2006 i. 23. Chapter 23. Tunnels ... Application of Design Principles and ..... rock bolts. TBMs can also be used in some circumstances. 23.4 General Design. Considerations. Tunnels have distinguishing characteristics such as:.

Technical Manual for Design and Construction of Road Tunnels

design examples. This manual focuses primarily on the civil elements of design and construction of road tunnels. It is the intent of FHWA to collaborate with ... Chapter 9 introduces the history, principles, and recent development of mined tunneling using Sequential ... Rock Tunneling – James Monsees/ Sunghoon Choi.

Design of rock bolting systems for underground ... - Research Online

Porter I. and Chen D., 1992; Stability analysis and rock bolting design in a multiple joint rock mass. Journal of Mining Research, Vol. 1, No. 3, PP7-18. Chen D., Porter I. and Singh R. N., 1993; Determination of major discontinuity sets for stability analysis in a jointed rock mass. Int. Symp. Application of Computer. Methods in ...

Presidential Address: Rock engineering—good design or ... - SAIMM

construction of civil tunnels and dams in. Europe. 'Rock mechanics' .... Design principles in rock engineering. Bieniawski (1991, 1992) dealt .... In simple terms, if unexpected behaviour is occurring, then the design must be changed to obviate such undesirable behaviour. Prediction of behaviour. Engineers are taught to ...

New Austrian tunnelling method - Wikipedia

The New Austrian tunneling method (NATM), also known as sequential excavation method (SEM), is a method of modern tunnel design and construction. This technique first gained attention in the 1960s based on the work of Ladislaus von Rabcewicz, Leopold Müller, and Franz Pacher between 1957 and 1965 in Austria.

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