Gotthard Base Tunnel Rail Tunnel Design Engineering

Gotthard Base Tunnel Rail Tunnel Design Engineering

The drilling, digging and blasting continued 24/7 for 12 years using massive tunnel boring machines of 35ft in diameter. The cutter head had 58 blades, each 17 in diameter and each exerting 26 tons of force. The TBMs worked 130 of rock in a day. Gotthard Tunnel boring machine. The TBM costing 21 millionposed of 90,000 parts.

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The Greatest Challenges in TBM Tunneling: Experiences from

The Greatest Challenges in TBM Tunneling: Experiences from

new tunnel bored there are unknown elements. When boring through the earth, even extensive Geotechnical Baseline Reports can miss fault lines, water inflows, squeezing ground, rock bursting, and other types of extreme conditions. This paper will draw on

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Directional Core Drilling for Tunneling and Geotechnical

Directional Core Drilling for Tunneling and Geotechnical

Where traditional core drilling DHH 1 2 gives limited information, directional core drilling DCD 1rates the geological formations parallel to the planned tunnel. By utilizing directional core drilling it is possible to steer the borehole along a predefined trajectory, no matter if it is curved or straight.

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The Greatest Challenges in TBM Tunneling: Experiences from

The Greatest Challenges in TBM Tunneling: Experiences from

new tunnel bored there are unknown elements. When boring through the earth, even extensive Geotechnical Baseline Reports can miss fault lines, water inflows, squeezing ground, rock bursting,

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DT912D Tunneling jumbo Xinhai Mining and Rock Technology

DT912D Tunneling jumbo   Xinhai Mining and Rock Technology

Xinhai DT912D is a self contained, air mist flushing, diesel hydraulic high reach single boom jumbo, offering high quality drilling. It's designed for fast and accurate drifting and production drilling of 12 to 125 m² cross sections, and the 24 tonbines Xinhai's own technology, creativity and expertise with the vast experience gained over the decades in the field.

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Reducing risk in long deep tunnels by using TBM and drill

Reducing risk in long deep tunnels by using TBM and drill

Jun 25, 2012· The majority of the northern tunnel therefore had to be excavated by drill and blast, also with great difficulties at times, including a 7 000 m 3 inrush of clay, rock and water that buried a tunnel worker and excavation equipment, moving the tunnel

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PDF Estimation Model for Advance Rate in Drill and Blast

PDF Estimation Model for Advance Rate in Drill and Blast

Drill and Blast DB and Tunnel Boring Machine TBM are the two dominating excavation methods in hard rock tunnelling. Selection of the cost effective excavation method for a tunnel is a

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Drilling Epiroc

Drilling  Epiroc

Epirocs drilling rigs offer a variety of feed lengths, positioning configurations, rock drills, and optional automated features for underground production drilling and blast hole drilling in mining and tunneling.

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Underground Dilling Rigs Overview HPE

Underground Dilling Rigs Overview   HPE

Narrow Tunnel Drilling Rig Monorail System. To do blast hole face drilling and roof bolt holes to develop travelling ways, raises finger raise and T raise and gullies, furthermore to transport material and equipment along the horizontal and up to 34° in a raise, gully or travelling way and to improve on safety whereby the operator is removed from the danger area.

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Tunnel

Tunnel

A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal.

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Photo Illustration to support the teaching of the topic on

Photo Illustration to support the teaching of the topic on

Entrance arrangement to the tunnel portal for the 3.7km long Tai Lam Tunnel of Route 3 at Kam Tin as seen in early 1996. Tai Lam Tunnel consists two main tunnels, each measures 15.5m wide and

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PDF Drilling and blasting as a tunnel excavation method

PDF Drilling and blasting as a tunnel excavation method

method tunnel boring. In such case s, and persistence of 2 discontinuity sets, tunnel orientation, rock strength, RQD, and RMR and 4 blasting conditions i.e., distance between blasting

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PDF Drilling and blasting as a tunnel excavation method

PDF Drilling and blasting as a tunnel excavation method

The drill and blast method is the most widely used technique for rock excavation in tunnelling and underground projects. Its suitability for medium to hard ground conditions has been well recorded

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New Austrian Tunneling Method an overview

New Austrian Tunneling Method   an overview

Jun 02, 2001· Concrete tunnels can be constructed using various tunneling methods, e.g., the cut and cover method in soft ground, tunnel boring machine TBM method for a rock tunnel or shield driven tunnel in soil ground, new Austrian tunneling method NATM for sound ground, and immersed tube method for underneath a river or sea JSCE, 2006a,b,c Chapman

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Furukawa Tunneling Equipment Share Our Experience

Furukawa Tunneling Equipment   Share Our Experience

The rock conditions in this tunnel have been mostly classified type III, which allowed to drill for blasting in 80 of its excavation, making a blasting plane of 120 140 perforations with diameters of 45mm

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Micro Thermonuclear Plasma Tunneling by Rock Melting

Micro Thermonuclear Plasma Tunneling by Rock Melting

Standard drilling has limits as at some depth the pressures and temperatures force the drilled opening tight when the drill is lifted.This paper proposes a reliable and rapid method ofration of rock masses by melting all or part of the rock face andrate therein, cool the resulting glassy tube to

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Tunnel Boring below Montreal: A Case Study of Urban

Tunnel Boring below Montreal: A Case Study of Urban

profile along the tunnel alignment andmended lowering the depth of the tunnel axis from the original 1976 design. The rock mass crown pillar went from 2.5 m to 6 m at the southern entry point of the tunnel, where it is the thinnest. The 2012 drilling

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Tunnel Boring below Montreal: A Case Study of Urban

Tunnel Boring below Montreal: A Case Study of Urban

profile along the tunnel alignment andmended lowering the depth of the tunnel axis from the original 1976 design. The rock mass crown pillar went from 2.5 m to 6 m at the southern entry point of the tunnel, where it is the thinnest. The 2012 drilling campaign proposed by exp aimed to

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DT1231 i Tunneling jumbo Xinhai Mining and Rock Technology

DT1231 i Tunneling jumbo   Xinhai Mining and Rock Technology

Xinhai DT1231i three boom, electro hydraulic jumbo is designed for fast and accurate drilling in tunneling and cavern excavation.puter controlled rig has automatic drilling functions and

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Products Epiroc

Products  Epiroc

Epiroc is a one of the leading drill rig manufacturers in the world. We offer rock drilling machines and other equipment for many different applications. For example oil and gas, construction drilling, quarrying, surface mining, underground mining, exploration drilling

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TUNNELLING IN ROCKS PRESENT TECHNOLOGY AND

TUNNELLING IN ROCKS  PRESENT TECHNOLOGY AND

Modern rock tunnels are excavated by primarily two methods: Drill and Blast DB: It involves drilling charge holes advancing into rocks and using explosives to blast the rocks. Tunnel Boring Machine TBM: It involves cutting rock by a full face boring machines. Tunnelling machines for partial face roadheader are also used for rock

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Directional Core Drilling for Tunneling and Geotechnical

Directional Core Drilling for Tunneling and Geotechnical

Where traditional core drilling DHH 1 2 gives limited information, directional core drilling DCD 1rates the geological formations parallel to the planned tunnel. By utilizing directional core drilling

Read More...

DT1231 i Tunneling jumbo Xinhai Mining and Rock Technology

DT1231 i Tunneling jumbo   Xinhai Mining and Rock Technology

Xinhai DT1231i three boom, electro hydraulic jumbo is designed for fast and accurate drilling in tunneling and cavern excavation.puter controlled rig has automatic drilling functions and operator controlled boom positioning. It drills holes with a diameter of 45 to 64 millimeters 1 ¾ to 2 ½ inches with a depth of up to 6.1 meters 20 feet.

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Underground Dilling Rigs Overview HPE

Underground Dilling Rigs Overview   HPE

Narrow Tunnel Drilling Rig Monorail System. To do blast hole face drilling and roof bolt holes to develop travelling ways, raises finger raise and T raise and gullies, furthermore to transport material and equipment along the horizontal and up to 34° in a raise, gully or travelling way and to improve on safety whereby the operator is removed from the danger area.

Read More...

Types of Tunnel Boring Machine Hard Rock Soft Ground TBM

Types of Tunnel Boring Machine   Hard Rock  Soft Ground TBM

Tunnel Boring Machinemonly referred to as TBM or Mole. In a simple sense, a tunnel boring machine can be defined as the machine primarily designed to excavate the tunnels with circular cross sections through different types of rock and soil layers. Tunnel boring machine is the modern type of machine used for boring the tunnel.

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Seymour Capilano Twin Tunnels Hatch Ltd

Seymour Capilano Twin Tunnels   Hatch Ltd

Boring unlined tunnels in natural granite saved CAD 40 million and 10 kilometres of pipeline. Infrared technology provided quality assurance for grout backfill behind the steel tunnel liners. Computational fluid dynamics CFD aided the design of sand traps and ensured any loose material from the unlined tunnel

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China Advancements in Tunneling and Underground Excavation

China Advancements in Tunneling and Underground Excavation

The tunnel initial support consists of rock bolts and 4 shotcrete and the final liner consists of waterproofing membrane and 4 inch shotcrete suspended by bolts spaced around 4 by 4 feet, installed 1 foot from the shotcrete lined rock surface, acts as a water and frost insulation.

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Rock Engineering Practice Design

Rock Engineering Practice  Design

Drill Blast Drill Blast Burn CutBurn Cut Th t d i f bl t t t ith th The correct design of a blast starts with the fi t h lfirst hole t b dt td to be detonated. In the case of a tunnel blast, the first requirement is to create a void into which rock broken by the blast can expand. This is generally achieved by a

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tunneling tools, tunneling tools Suppliers and

tunneling tools, tunneling tools Suppliers and

Tunnel rock drill tools T38 drill rod thread rod extension rod . Up to 5 years warranty. US 35.00 35.00 / Meter 1 Meter Min. Order 4 YRS . Luoyang Shandike Mechanical Equipment . 3 80.0 . Contact Supplier

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6.1. GENERAL

6.1. GENERAL

drilling site.Tunnel blasting differs from bench blasting in that tunnels have only one free surface available when blasting starts. This restricts round length, and the volume of rock FIGURE 6.2. 1. Types of holes in a tunnel face. Hard rock TBMs can be used in relatively soft to hard rock conditions, and best when rock

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Products Epiroc

Products  Epiroc

Epiroc is a one of the leading drill rig manufacturers in the world. We offer rock drilling machines and other equipment for many different applications. For example oil and gas, construction drilling, quarrying, surface mining, underground mining, exploration drilling

Read More...

Modern large diameter rock tunnels

Modern large diameter rock tunnels

Lok Home, President, Thepany Recent experience and development of hard rock tunnel boring on most large diameter tunnels, especially above 8m in diameter, has shown that improved

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New Austrian Tunneling Method an overview

New Austrian Tunneling Method   an overview

Jun 02, 2001· Concrete tunnels can be constructed using various tunneling methods, e.g., the cut and cover method in soft ground, tunnel boring machine TBM method for a rock tunnel or shield driven tunnel

Read More...

Directional Core Drilling for Tunneling and Geotechnical

Directional Core Drilling for Tunneling and Geotechnical

Where traditional core drilling DHH 1 2 gives limited information, directional core drilling DCD 1rates the geological formations parallel to the planned tunnel. By utilizing directional core drilling

Read More...

Multi service vehicles MSV Herrenknecht AG

Multi service vehicles MSV   Herrenknecht AG

The multi service vehicles from the Herrenknecht subsidiary Techni Métal Systèmes TMS provide for the trackless supply of the tunnel jobsite reliably, efficiently and flexibly. They keepplex work processes of tunnelling and tunnel

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Rock Drilling with jack hammer

Rock Drilling with jack hammer

Jun 11, 2016· Adoshi tunnel,Mumbai. WORLD'S BEST TREE FELLING TUTORIAL! Way more information than you ever wanted on how to fell a tree!

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Furukawa Tunneling Equipment Share Our Experience

Furukawa Tunneling Equipment   Share Our Experience

The rock conditions in this tunnel have been mostly classified type III, which allowed to drill for blasting in 80 of its excavation, making a blasting plane of 120 140 perforations with diameters of 45mm

Read More...

New Austrian Tunneling Method an overview

New Austrian Tunneling Method   an overview

Jun 02, 2001· Concrete tunnels can be constructed using various tunneling methods, e.g., the cut and cover method in soft ground, tunnel boring machine TBM method for a rock tunnel or shield driven tunnel

Read More...

Rock Engineering Practice Design

Rock Engineering Practice  Design

Drill Blast Drill Blast Burn CutBurn Cut Th t d i f bl t t t ith th The correct design of a blast starts with the fi t h lfirst hole t b dt td to be detonated. In the case of a tunnel blast, the first requirement is to create a void into which rock

Read More...

Drilling Epiroc

Drilling  Epiroc

Epirocs drilling rigs offer a variety of feed lengths, positioning configurations, rock drills, and optional automated features for underground production drilling and blast hole drilling in mining and tunneling.

Read More...

CHAPTER WRD: 6

CHAPTER  WRD: 6

Deploy drilling jumbo for 1 hour for marking hole locations. 2. Drilling holes : Full face method of excavation is assumed. Area of adit upto pay line 0.5 x 0.7857x 4.9 x 4.9 + 4.9 x 2.45 : 21.43 sqm The drilling pattern for excavation of tunnel / adit depends on the size and shape of tunnel, rock

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BUILDING BIG: Tunnel Basics PBS

BUILDING BIG: Tunnel Basics   PBS

Before carving a tunnel, engineers investigate ground conditions by analyzing soil and rock samples and drilling test holes. There are three steps to a tunnel's success.

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Advanced Rock Tunnelling Engineering Solutions WSP WSP

Advanced Rock Tunnelling Engineering Solutions  WSP  WSP

Rock tunnelling requires an interweaving of knowledge rock mechanics, engineering design, and construction practice and techniques. We have experience in all rock tunnel construction techniques including drill and blast, New Austrian Tunnelling Method, Tunnel Boring Machines, and roadheaders.

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US3693731A Method and apparatus for tunneling by melting

US3693731A   Method and apparatus for tunneling by melting

A machine and method for drilling bore holes and tunnels by melting in which a housing is provided for supporting a heat source and a heated end portion and in which the necessary melting heat is delivered to the walls of the end portion at a rate sufficient to melt rock and during operation of which the molten material may be disposed adjacent the boring zone in cracks in the rock and as a

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Types of Tunnel Boring Machine Hard Rock Soft Ground TBM

Types of Tunnel Boring Machine   Hard Rock  Soft Ground TBM

Tunnel Boring Machinemonly referred to as TBM or Mole. In a simple sense, a tunnel boring machine can be defined as the machine primarily designed to excavate the tunnels with circular cross sections through different types of rock and soil layers. Tunnel boring machine is the modern type of machine used for boring the tunnel.

Read More...

Tunnelling: Mechanics, methods, and mistakes

Tunnelling: Mechanics, methods, and mistakes

The process of digging a tunnel in rock, however, is not simply a case of deciding where the tunnel is to go and then blasting one's way through. Rock is a very treacherous medium through which to travel. Even solid rock

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Tunnel Rock Bolts, Self Drilling Anchor Bolt Systems

Tunnel Rock Bolts, Self Drilling Anchor Bolt Systems

About Us. Established in 2015 to support the growing demand of our Rock Hardware Products with excellent customer service. Srons Engineers are the Indian manufacturers of Rock Bolts, Self drilling anchor systems and Self Drilling Anchor Bolt parts like hollow bar rod, threaded rods, tie rods, coil rods, anchor couplers, anchor adapters, anchor nuts, drilling bits, Forepoling Drilling

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Rock Stabilization Experts Rock Supremacy

Rock Stabilization Experts  Rock Supremacy

Rock Supremacy has a fleet of specialized equipment to navigate through difficult terrain and drill in the toughest ground conditions. If you have a rock stabilization problem Rock Supremacy is your solution. Tunnel Rehabilitation. Rock Supremacy has an extensive background with tunnel

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Tunnels and underground excavations Tunneling techniques

Tunnels and underground excavations   Tunneling techniques

Tunnels and underground excavations Tunnels and underground excavations Tunneling techniques: Tunnels are generally grouped in four broad categories, depending on the material through which they pass: soft ground, consisting of soil and very weak rock hard rock soft rock, such as shale, chalk, and friable sandstone and subaqueous. While these four broad types of ground condition require

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Reducing risk in long deep tunnels by using TBM and drill

Reducing risk in long deep tunnels by using TBM and drill

Jun 25, 2012· The majority of the northern tunnel therefore had to be excavated by drill and blast, also with great difficulties at times, including a 7 000 m 3 inrush of clay, rock and water that buried a tunnel worker and excavation equipment, moving the tunnel

Read More...

Rock Tunneling WSP

Rock Tunneling  WSP

Rock tunneling requires an interweaving of knowledge of rock mechanics, engineering design and construction practice and techniques. We have experience in all rock tunnel construction techniques, including drill and blast, New Austrian Tunneling Method, tunnel boring machines and roadheaders.

Read More...

Tunnel Engineering Modern Tunneling Methods, Hazards of

Tunnel Engineering  Modern Tunneling Methods, Hazards of

Tunnel, passage, gallery, or roadway beneath the ground or underwater. Tunnels are used for highway traffic, railways, and subways to transport water, sewage, oil, and gas to divert rivers around dam

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