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concrete sprayer for tunnel, concrete sprayer for tunnel

concrete sprayer for tunnel, concrete sprayer for tunnel

New technologies in concrete spraying for tunnel construction

Concrete spraying is one of the most demanding tasks in underground mining and tunnel construction. The quality of the sprayed concrete variates critically between

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Mining and tunneling concrete sprayer machine

Mining and tunneling concrete sprayer machine. With the rapid development of the mining and tunnels, more and more tunnels are being built in recent years. Our

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Where Are We Now with Sprayed Concrete Lining in Tunnels?

mechanize sprayed concrete lined tunnel construction as much as possible and thereby remove tunnel operatives from the face of the tunnel, decreasing the risk of

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Concrete Spray Equipment Tunnel Spraying Solutions Epiroc

The concrete sprayer machine MEYCO from Epiroc features quick startup for quality concrete spraying with a constant flow, which forms a fast and powerful

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Monitoring of Sprayed Concrete Lined Tunnels Using Fibre ...

Sprayed concrete is the process of projecting wet concrete through a nozzle with compressed air. This technique is often used for the containment and reinforcement

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Tunnel lining systems-Sprayed concrete (shotcrete) - Mo ...

Sprayed concrete or shotcrete is effective as a lining for tunnels due to the following reasons: Shotcrete is a structural material, and it can be used as a permanent lining for tunnels. Shotcrete concrete can be used to line tunnels with different profiles and different shapes. Shotcrete concrete high flowability allows concrete to form in any ...

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Concrete Spray Equipment Tunnel Spraying Solutions Epiroc

The concrete sprayer machine MEYCO from Epiroc features quick startup for quality concrete spraying with a constant flow, which forms a fast and powerful concrete pumping system. The rigid and high performance boom ensures accuracy and less rebound, resulting in less waste. These concrete spray machines provides a constant, highly-accurate flow ...

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Sprayed concrete tunnel linings

Sprayed concrete tunnel linings. Sprayed concrete is used to provide temporary support for tunnels through weak rock, stabilising the rock by filling crack and openings. It also seals the surface, preventing water ingress. Sprayed concrete is also used in the New Austrian Tunnelling Method (NATM) to provide temporary support in soft or weak ground.

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Sprayed concrete solutions for underground construction

Sprayed concrete technology has revolutionized tunnel construction and mining operations since the middle of the 20th century. The development of material science ... concrete the building material of choice for today’s underground construction projects. Due to its nature as a spray-applied material, sprayed concrete offers excellent surface ...

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Sprayed Concrete Lined Tunnels - 2nd Edition - Alun Thomas ...

Sprayed concrete lined (SCL) tunnels are growing rapidly in popularity due to their versatility. The design and construction of both hard rock and soft ground tunnels has been revolutionised by the advent of the SCL method and now the use of permanent sprayed concrete linings has unlocked the true potential of the method to minimise construction costs and times. Yet the complex early age ...

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MODERN COMPOSITE SPRAYED CONCRETE WATERPROOF

Tunnel as part of the Lausanne Metro M2 in Switzerland and the rehabilitation of the concrete lined Chekka Road Tunnel in Lebanon. In these case studies the composite sprayed concrete waterproof lining with spray applied membrane was applied as the functional waterproofing and support of the tunnel. The design of

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Crossrail project: use of sprayed concrete tunnel linings ...

Apr 11, 2017  concrete sampling and testing procedures, in particular for strength development, throughout all stages of the construction of the sprayed tunnel linings. Crossrail has released a best practice guide for sprayed concrete lining exclusion zone management which covers the above points in more detail ( Crossrail, 2016 ).

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Lungern Bypass: Sprayed Concrete Application ... - tunnel

1 Overview. In the tunnel widenings for the Lungern bypass/CH, sprayed concrete was applied directly onto the flexible polymer waterproofing-membrane (PWM) in the arch area instead of inner lining concrete. This new approach avoided costly special formwork. The amount of rebound was considerably reduced by first installing a fine steel mesh.

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Crossrail’s first spray concrete lined tunnels completed ...

May 04, 2012  The first SCL tunnel measures 80 metres in length and the second (running east from the worksite) is 100 metres long. The Spray Concrete Lining technique will be used to build 12 km of station platform tunnels, passages, access and grout tunnels along the Crossrail route where smaller, relatively short tunnels are needed.

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Normet 5100 tunnel and metro underground concrete spray ...

Dec 02, 2018  Tunnel and metro underground concrete spray equipment

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Solutions For Tunnel Waterproofing WATERPROOF! Magazine

Jan 06, 2014  Larger tunnels use cast-in-place concrete, shotcrete, or a combination such as a precast tunnel roof placed onto cast-in-place walls. Waterproofing solution vary based on how the project is built, the construction timetable, and jobsite conditions. Spray-on membranes are common in shallow tunnels, but become rarer as the depth increases.

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Intelligent Detection for Tunnel Shotcrete Spray Using ...

Dec 26, 2019  Shotcrete spray is an indispensable process in tunnel construction. At present, the construction of tunnels in China is mainly depend on labor or mobile concrete sprayer, which has lots problems like time-consuming, low precision, and labor intensive. An intelligent detection method for tunnel shotcrete spraying is proposed in this article. There are two main issues need to be solved,

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Wet Concrete Wall Spraying Machine Shotcrete Machine in ...

Wet Concrete Spraying Machine-Lead Equipment Co., Ltd. It’s mainly used for wet spraying for roads, railways, mining and tunnel, spraying mixed vegetation for slope of road and railway, grouting for wall, pumping fine aggregate concrete and so on. Features: ♦ Wet spraying machine has stepless speed change. The conveying output is 0-7 cubic meters / hour. ♦ The machine

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Ceiso Approved Tunnel Electric Concrete Shoot Morter Wet ...

Ceiso Approved Tunnel Electric Concrete Shoot Morter Wet Type Shotcrete Spraying Machine Cost Price/shotcrete Machine For Sale , Find Complete Details about Ceiso Approved Tunnel Electric Concrete Shoot Morter Wet Type Shotcrete Spraying Machine Cost Price/shotcrete Machine For Sale,Shotcrete Machine For Sale,Wet Shotcrete Machine,Shotcrete Machine from Mortar Spray

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Concrete Spray Equipment Tunnel Spraying Solutions ...

The concrete sprayer machine MEYCO from Epiroc features quick startup for quality concrete spraying with a constant flow, which forms a fast and powerful concrete pumping system. The rigid and high performance boom ensures accuracy and less rebound, resulting in less waste. These concrete spray

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DESIGN OF SPRAYED CONCRETE FOR UNDERGROUND

AFTES RECOMMENDATIONS FOR THE DESIGN OF SPRAYED CONCRETE FOR UNDERGROUND SUPPORT 2 Document presented by Eric LECA(SCETAUROUTE) - Chairman Work Group 20 with the participation of : Jean LAUNAY(GTM-DUMEZ) co-chairman - Philippe AUTUORI(BOUYGUES) - Claude BASCOULERGUE(CAMPENON-BERNARD) - Alain BERNARDET(EEG - SIMECSOL) - Daniel

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Intelligent Detection for Tunnel Shotcrete Spray Using ...

Dec 26, 2019  Shotcrete spray is an indispensable process in tunnel construction. At present, the construction of tunnels in China is mainly depend on labor or mobile concrete sprayer, which has lots problems like time-consuming, low precision, and labor intensive. An intelligent detection method for tunnel shotcrete spraying is proposed in this article. There are two main issues need to be solved,

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Shotcrete and Concrete Spraying Equipment and Chemicals ...

Concrete Spraying Equipment. Our mobile sprayers are the result of over 50 years of experience in underground works and of close partnerships with tunnelling and mining customers from across the globe. Spraymec models are available with an electro- or diesel-hydraulic configuration and an optional on-board compressor. Concrete Logistics Equipment.

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Sprayed concrete solutions for underground construction

Sprayed concrete technology has revolutionized tunnel construction and mining operations since the middle of the 20th century. The development of material science ... concrete the building material of choice for today’s underground construction projects. Due to its nature as a spray-applied material, sprayed concrete offers excellent surface ...

get price

Normet 5100 tunnel and metro underground concrete spray ...

Dec 02, 2018  Tunnel and metro underground concrete spray equipment

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Sprayed concrete composite tunnel lining – load sharing ...

Spray-applied membranes offer the opportunity to take into account some bond between the two linings, producing a composite action. The composite action allows the ... Sprayed concrete composite tunnel lining – load sharing between the primary and secondary lining, and its benefit in reducing the structural thickness of the lining.

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The performance of pressure cells for sprayed concrete ...

Spray-applied membranes for waterproofing of sprayed concrete tunnels have led to the possibility of shear transfer between primary and secondary linings through the membrane interface, with the ...

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Shotcrete - Tunnel Shaft – lining - repair ...

Sprayed concrete is an effective solution to extend the life of such structures. New SCL tunnels comprising of primary/ waterproof membrane and secondary linings are becoming increasingly common throughout the world. Shotcrete Services is able to complete all elements including the spray applied waterproofed membrane.

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Comparison Between Sprayed and Cast In-Situ Concrete ...

Aug 31, 2016  Advances in sprayed concrete lining (SCL) technology — such as the use of wet mix processes, improved accelerators, fibre reinforcement, remotely controlled spraying robots, innovative surveying equipment and nozzleman competency schemes — have greatly increased the speed and safety of tunnel excavations using this technique.

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Wet Concrete Wall Spraying Machine Shotcrete Machine in ...

Wet Concrete Spraying Machine-Lead Equipment Co., Ltd. It’s mainly used for wet spraying for roads, railways, mining and tunnel, spraying mixed vegetation for slope of road and railway, grouting for wall, pumping fine aggregate concrete and so on. Features: ♦ Wet spraying machine has stepless speed change. The conveying output is 0-7 cubic meters / hour. ♦ The machine

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Intelligent detection for tunnel shotcrete spray using ...

2.3 Intelligent detection for tunnel shotcrete spray In the process of tunnel excavation, the traditional methods mainly rely on the manual operation of the concrete sprayer

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Ceiso Approved Tunnel Electric Concrete Shoot Morter Wet ...

Ceiso Approved Tunnel Electric Concrete Shoot Morter Wet Type Shotcrete Spraying Machine Cost Price/shotcrete Machine For Sale , Find Complete Details about Ceiso Approved Tunnel Electric Concrete Shoot Morter Wet Type Shotcrete Spraying Machine Cost Price/shotcrete Machine For Sale,Shotcrete Machine For Sale,Wet Shotcrete Machine,Shotcrete Machine from Mortar Spray

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Underground Mining Robotic Shotcrete Machine For Tunnel ...

KPC-80 Shotcrete robot is suitable for spraying dry concrete, wet concrete or wet and dry mixture. 2. It adopts independent hydraulic drive and 4 hydraulic legs, which greatly improves the stability of the equipment during the spray process. 3. It adopts explosion-proof electrical design, which makes it acceptable in underground coal mine.

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