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Roadheaders - Metro Tunnel

A total of seven roadheaders will be used to create the Town Hall and State Library stations in the CBD. Our roadheaders will work together deep underground to mine the station caverns for our State Library and Town Hall stations. In line with tunnelling tradition, these road headers are named after females, which is thought to bring good luck ...

Tunnel Boring Machines (TBM) – Roadheaders (TSM)

Tunnel boring machines are full-face cutting machines, which means that, unlike road headers, they excavate the entire tunnel cross-section in one step. TSM: Roadheaders belong to the category of peripheral milling machines due to their design. Since today's road headers work with cutting heads, these machines are also called cutting head machines.

Roadheaders for Tunneling, Excavation, and more ...

Antraquip is the leading manufacturer of Roadheaders. Our roadheaders are advanced, self-propelled and extremely powerful rock cutting machines. We offer roadheaders in the weight class of 13 – 80 tons operating weight and they are designed to excavate roadways, tunnels and chambers continuously without using explosives.

Roadheader solutions in focus - tunneltalk

May 01, 2017 · Roadheaders provide reliable, cost effective excavation in the soft, medium and increasingly harder rock applications. Increasingly roadheaders are providing a flexible, mobile, safe, and environmentally friendly option, with the ability to excavate various tunnel sizes, shapes, and types. As tunnel excavation by roadheader becomes more popular ...

AM50 Roadheader Tunnel Breakthrough - YouTube

Apr 26, 2010 · A mid-size AM50 roadheader (approx. 30t) supplied by Antraquip Corp. finishes the excavation of a tunnel. For more information please visit our website a...

Roadheaders | Tunnel Engineering Services (UK) Ltd

Tunnel Engineering Services (UK) Ltd Roadheader Tunnel Boring Machine is a shield type machine which has been designed specifically to deal with harder ground conditions. Roadheaders are an economical alternative to ‘drill and fire’ techniques, for excavation of soft rocks and when shield mounted, are adaptable to a wide range of spoils.

Roadheader Tunneling Machine For Hire - Mine and Tunnel

MTC offers a range of Roadheaders for hire to suit whatever excavation or tunnelling work your project requires. From underground mines, waterworks and sewerage systems to roads, railroads and more, we’ve got or will do our very best to source a Roadheader tunneling machine to match your needs.

Roadheader - Wikipedia

Roadheaders were initially utilized in coal mining applications. The first use of a roadheader in a civil engineering project was the construction of the Melbourne Underground Rail Loop in the 1970s, where the machines enabled around 80% of excavation to be performed mechanically. They are now used in a broad range of applications including but not limited to tunneling both for mining and municipal government projects, building wine caves, and building cave homes such as those found

Road Header Tunneling Roadheader - YouTube

Jul 25, 2016 · Road Header Tunneling Roadheader chinacoal [email protected] chinacoal10

Tunnel Excavation | Roadheaders and Hydraulic Cutters ...

Roadheaders and hydraulic cutters are commonly used for tunnel excavation projects in soft to medium hard rock. Roadheaders are capable of excavating the precise tunnel profile while removing the material from the face with the loader head and conveyor which ensures seamless, continuous tunneling.

(PDF) Roadheader applications in mining and tunneling

Roadheaders offer a unique capability and flexibility for the excavation of soft to medium strength rock formations, therefore, are widely used in underground mining and tunneling operations.

AM50 Roadheader Tunnel Breakthrough - YouTube

Apr 26, 2010 · A mid-size AM50 roadheader (approx. 30t) supplied by Antraquip Corp. finishes the excavation of a tunnel. For more information please visit our website a...

Roadheaders | Tunnel Engineering Services (UK) Ltd

Tunnel Engineering Services (UK) Ltd Roadheader Tunnel Boring Machine is a shield type machine which has been designed specifically to deal with harder ground conditions. Roadheaders are an economical alternative to ‘drill and fire’ techniques, for excavation of soft rocks and when shield mounted, are adaptable to a wide range of spoils.

ADVANTEC Tunnel & Mining - Mining and tunnelling machinery

Under the TDR series name (tunnel-digging roadheaders), we offer you powerhouses that represent the benchmark in the mining and tunnelling industry. On the one hand, because we produce our roadheaders in various sizes and designs, meaning we can supply our customers with the right solution for virtually any requirements.

AQM 50 Roadheader | Narrow Tunneling and Mining ...

The Antraquip model AQM 50 is a roadheader in the 18 ton weight class, with the worlds narrowest roadheader. It is ideally suited for tunneling and mining where only a very narrow machine fits.

BREAKTHROUGHS IN TUNNELING 2019 DRILL & BLAST

ROADHEADER TUNNEL EXCAVATION 6 ... for SANDVIK Roadheaders using Low Cutting Speed (~1.4 m/s) 0 50 100 150 200 250 300 0 50 100 150 200 250 300 UCS R [MPa] UCS RM [MPa] RMCR=10 RMCR=15 RMCR=20 RMCR=25 RMCR=30 RMCR=35 RMCR=40 RMCR=45 RMCR=50 RMCR =

Roadheader - creg-germany

Application: Shijiangshan Maglev Train Tunnel, Beijing, China Shijiangshang Maglev Train Tunnel is part of the first maglev train line S1 in Beijing. 8 stations are set up on this 10.2km S1 line and the whole trip takes 20 minutes. Minimum turning radius of the maglev train is 75m. To greatly reduce the disturbance above ground in the dense residential area, CREG roadheader was used for ...

Rock Tunneling Boring Machine, Rocking Tunnel Machine ...

Hot Sale Rock Tunneling Boring Machine, Rocking Tunnel Machine, Cantilever Roadheader Machine for Coal, Semi-Coal Tunnel. Welcome to contact us!

roadheader attachment for excavator - Products

Antraquip roadheaders are typically used for tunneling (road, railroad, water, sewer) or in the mining industry. For the excavation of shafts, Antraquip suggests its roadheader based shaft sinking equipment provided the UCS of the material to be excavated does not exceed 8,000 psi.

Equipment Solutions for Mining and Tunnelling | Mektunnel

Mektunnel Equipment Solutions was founded in 2011. We specialize in mechanized solutions for mining and tunnelling applications around the world. We are an Agent for ADVANTEC Tunnel and Mining Solution GmbH, a German manufacturer of state-of-the-art Roadheaders. About Us.

TBM Tracker - Cross River Rail

Tracking our TBMs. Our two Tunnel Boring Machines – Else and Merle – have now been launched. You can check out their progress on our map below as they make their way from Woolloongabba to Albert Street, before continuing to Roma Street and finally emerging at the project’s northern portal at Normanby. Two roadheaders will also dig twin ...

Precision roadheader and rockbolting on WestConnex

Dec 20, 2018 · To ensure the roadheaders excavate the designed tunnel profile and that bolters position their tunnel support correctly, accurate and reliable navigation systems have been required. This is where the VMT expertise came in. Having bid to provide navigation systems for both WestConnex M4 and M5 tunnel contracts, VMT was extremely pleased to be ...

Tunnel Boring Machines (TBM) – Roadheaders (TSM)

Roadheaders can be used to create roadway cross-sections of any shape. To work the tunnel face, the roadheader is moved towards the face with the crawler tracks and the cutting head is set in motion. The face of the tunnel or roadway is then milled off in

ADVANTEC Tunnel & Mining - Mining and tunnelling machinery

Under the TDR series name (tunnel-digging roadheaders), we offer you powerhouses that represent the benchmark in the mining and tunnelling industry. On the one hand, because we produce our roadheaders in various sizes and designs, meaning we can supply our customers with the right solution for virtually any requirements.

BREAKTHROUGHS IN TUNNELING 2019 DRILL & BLAST

ROADHEADER TUNNEL EXCAVATION 6 ... for SANDVIK Roadheaders using Low Cutting Speed (~1.4 m/s) 0 50 100 150 200 250 300 0 50 100 150 200 250 300 UCS R [MPa] UCS RM [MPa] RMCR=10 RMCR=15 RMCR=20 RMCR=25 RMCR=30 RMCR=35 RMCR=40 RMCR=45 RMCR=50 RMCR =

Roadheader | Mining & Tunneling | SANY Group

Total Power: 420 - 757kW. Working Conditions: Non-coal Seam. Cutting Motor Power: 260/200 - 260/260kW. SCR260. SCR520. EBZ Series Roadheader. Total Power 218 - 570kW. Working Conditions Coal Seam. Cutting Motor Power 75 - 318kW.

Sandvik MT720 Crawler-Mounted Boom-Type Roadheader ...

Sandvik MT720 is an electrically powered and crawler-mounted boom-type roadheader which is engineered to cut hard and abrasive rock mass of up to 140 MPa unconfined compressive strength (UCS), and in extreme cases of even up to 180 MPa in tunneling applications. This extremely powerful 100+ tons-class roadheader has a powerful transversal cutter head mounted on an extremely robust

The performance of a roadheader in high strength rock ...

from different tunnel chainages are given in Table 1. A geological cross section of the tunnel with RQD and water income values in different rock strata is given in Figure 4. 4 PERFORMANCE PREDICTION OF THE ROADHEADER IN KÜÇÜKSU TUNNEL In recent years the application of roadheaders in hard rock formations has increased considerably. However

Roadheaders | Alpine Roadheading Products | Bellefonte PA

Roadheaders. Alpine has been in the roadheader design, manufacture, and sales business for over 35 years. These days we focus on in-house refurbished continuous mining roadheaders as well as new machine offerings. Alpine offers technical project and machine consulting, machine customization, parts and service or all roadheaders. We look forward ...

roadheader attachment for excavator - Products

Antraquip roadheaders are typically used for tunneling (road, railroad, water, sewer) or in the mining industry. For the excavation of shafts, Antraquip suggests its roadheader based shaft sinking equipment provided the UCS of the material to be excavated does not exceed 8,000 psi.

Shaft Boring Roadheader (SBR) - Herrenknecht AG

The Shaft Boring Roadheader (SBR) was developed for the mechanized sinking of blind shafts in soft to medium-hard rock with up to 120 MPa. For the efficient excavation of the rock, the SBR has been equipped with a roadheader boom and a rotating cutting drum. This allows the creation of variable shaft diameters between 7 and 12 meters.

Rocking Tunnel Boring Machine, Mine Mucking Loader, Rotary ...

EBZ260A Rock Tunneling Boring Ma... EBH260A Boom-Type Rock Tunneling... EBZ300A Rock Tunnel Boring Machi... EBH300 (A) Rock Tunneling Boring M... ZCY45 (R) Fully Hydraulic Side Du... ZWY-80/45L Mucking loader. About Zhongxuan Hebei Zhongxuan Construction Machinery Co., Ltd. is a professional company which specialized in the production and sales ...

A Model to Predict the Performance of Roadheaders And ...

Sep 02, 1996 · A contractor is always interested in predicting the machine performance prior to starting a tunnel project that will definitely define the tunnel drivage economy. The past few research works were focused on the prediction of the performance of roadheaders or TBM's from laboratory rock cutting tests.

Analysing International Tunnel Costs

cut and cover, drill and blast, roadheaders, and tunnel boring machines (TBMs). There are also an array of end-uses for tunnels including road, rail, water, wastewater, cable, mining and scientific tunnels. Each end-use has its own specifications and requirements for operation and safety. Every tunnel also has its own length, face area, depth, and

A Model to Predict The Performance of Roadheaders and ...

applications in Istanbul Levent Metro Tunnel are also given in this table. The analysis of field data both for roadheaders and impact hammers are explained below. 5.1 The analysis of data obtained from roadheader applications For five different tunnels the instantaneous cutting rates of roadheaders

Roadheaders Tunneling For Most Rock Formations | Sandvik ...

Sandvik's MT series of roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used for a wide range of applications. They can also be used for rehabilitation of existing tunnels, and excavation of underground caverns.

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