Hard rock machin Our product offer is built around three types of tunneling machines for all types of geology, whatever the hardness of the rocks and the diameter to dig single shield machines, telescopic shield machines and gripper machin...
The application of polyurethane grout in roadway settlements issues Liang Yu Martech, Edmonton, Alberta, Canada Rocky Wang, Roger Skirrow Engineering Service Division, Alberta Transportation, Edmonton, Canada...
In hard rock TBM the usage of EX EC prevent dust formation and reduce consumption of cutters EX EC can be used in combination with any kind of polymer in order to produce a , Injection Ratio , and the ratio , related to the different pressure condition existing in the excavation chamber in order to...
Controlled injection method and means for fragmentation of hard compact rock and concrete Patent number 6102484 Abstract Breaking hard compact materials, such as rock and concrete, is based upon a controlled-fracturing process wherein a high-pressure is used to pressurize a pre-drilled hole of appropriate geometry...
Hard rock excavation in urban areas is a significant challenge owing to unacceptable excavation vibration levels and the necessity of rapid excavations Conventional blasting methods and the use of a tunnel boring machine TBM are...
The general features of a device to use Controlled Injection CFI for either rock excavation or secondary breakage are illustrated in Figure 1 A injection tube or barrel is...
Shielded Hard Rock TBMs have an excavation diameter which is larger than the shield skin In addition, the excavation axis of the cutterhead is slightly higher than the machine axis In addition, the excavation axis of the cutterhead is slightly higher than the machine axis...
On the other hand, water control chemical grouting is intended to stop water movement in granular soil or rock Injection points are laid out in a grid pattern, with waterproof masses created at the injection ,...
TBM Conditioning Additives for EPB or Slurry Shield Machines , THEN OPEN SHIELD CAN BE USED 80 70 60 NO OR LOW-RATE CONDITIONING 50 40 30 CONDITIONING DUE TO COARSE but not all hard rock TBMs are equipped for this kind of application1 2 4 6 8 2 1 4 6 8 2 10 4 6 8 100 GRAIN SIZE d mm Figure 13 The use of additives on Hard Rock machines ....
The cutterhead of the first machine was turned and its injection system activated for a test demonstration for the gathered audience of owner representatives from Copenhagen, Seli factory workers and staff, and representatives of machine design partner, Kawasaki of Japan...
Concrete Demolition and Rock Breaking has never been easier with Dexpan® Non-Explosive Demolition Agent Dexpan® is a cement with amazing 18,000 PSI expanding strength when mixed with water Poured into drilled holes, Dexpan® breaks concrete and ,...
A silty/fine sand backfill was used over a rock outcrop for a distance 67 of about 100 feet and a frost heave over 3 inches 75 mm commonly develops across this stretch during 68 the winter...
Specification and Guidelines for the use of specialist products for Mechanised Tunnelling TBM FOREWORD EFNARC is the European federation dedicated to specialist construction chemicals and concrete systems...
Controlled Rock Concrete Demolition Bustar expansive grout has been used in thousands of projects ranging from concrete removal and concrete demolition of structures ranging from small equipment pads to massive bridge piers, heavily reinforced turbine foundations and lock wall pre-splitting...
Applied Geodynamics offers Controlled- Injection, a revolutionary non-explosive method for hard rock excavation, secondary breakage and concrete demolition Concrete Demolition AIR BLAST Civil Construction Penney s Construction Company HARTFORD, CT 860 241 0933...
Injection operations cover an extensive range of applications, from waterproofing to crack sealing and ground-rock consolidations Water inflows in tunnel structures represent major hazards, also hindering and delaying excavation and rifting process...
Dexpan® chemical rock breaking can also be applied along with traditional demolition tools like jackhammers, wrecking balls, hydraulic breakers, diamond blade concrete saws, diamond wire sawing machines, and chain saw stone cutters to help cut cost, work time and increase safety, Plus because it works as silent demolition, Dexpan® is perfect for demolition contractors, drilling and blasting ....
Controlled- injection for hard rock excavation Chapman Young Applied Geodynamics Inc, Steamboat Springs, Colorado, USA ABSTRACT A new non-explosive method to excavate hard rock and concrete has been developed, tested and demonstrated in a mining environment...
Grippers for hard rock and the Single Shield TBM for tunneling through rock and other stable, non- , excavation and progress Sika® TBM 20 Disc cutter cleaner and clay remover , PRODUCTS FOR TBM INJECTIONS 8 CONCRETE PRODUCTS FOR TBM BELT REPAIR...
-excavation, tion, loss of entrained air, settlement, or subsidence CLSM is often used in applications of , Making Performed For Cellular Concrete interchanged The specifier is encouraged to , Guide Specification for Controlled Low Strength Materials CLSM 0-1 -1 -3 - Material ....
29th International Conference on Ground Control in Mining 1 Singh, S Evaluation of Rock Excavation Technologies for Seismically Active Mines S Paul Singh, Professor...
In the Controlled Injection CFI method a viscous is injected into the bottom of a pre-drilled hole in the rock to be broken by means of a barrel incorporating an inexpensive and highly effective hole-bottom sealing method...
The double shield TBM tunnel boring machines allows faster tunnel excavation in hard rock formations as the segments are installed during excavation...
ECOBUST is the premier source for the most economical non-explosive demolition agents on the market Ecobust provides a safe, noise free, effective, environmentally friendly solution for rock and concrete breaking Ecobust is developed for small or large projects, does not require special training, or permits Applications include and not limited to concrete and rock demolition, rock ....
Otuonye and colleagues feel that Controlled Injection CFI fracturing is the answer to the problem The preferred demolition/excavation method should have the ability to pressurize a controlled fracture in such a way that pressures can be maintained to increase the number of fractures, he says...
Applied Geodynamics offers Controlled- Injection, a revolutionary non-explosive method for hard rock excavation, secondary breakage and concrete demolition Concrete Demolition AIR BLAST Civil Construction Vacmasters Arvada, CO 303 467 3801...
In hard and soft rock mining, changes in humidity and temperature affect weak strata, causing rock falls and rib degradation Effective surface support and the protection against weathering of rock and strata are critical to the safety, efficiency and longevity of any mining operation...
46 Magazines from AQUACOM found on Yumpu - Read for FREE , Controlled- injection for hard rock excavation Controlled- injection for hard rock excavation , Colorado, Compact, Injection, Ofthe, Viscosity, Excavation Controlled- injection for hard rock excavation Controlled- injection for hard rock excavation from ....
Protection of the wire brushes and tightness of the tail seal are essential in tunnel excavation , Injection of the tail seal greases takes place in 2 steps , it guarantees a good pressure control and therefore optimal safety for the personnel and the equipment...
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Underground work
Hard rock machin Our product offer is built around three types of tunneling machines for all types of geology, whatever the hardness of the rocks and the diameter to dig single shield machines, telescopic shield machines and gripper machin...
The application of polyurethane grout in roadway ,
The application of polyurethane grout in roadway settlements issues Liang Yu Martech, Edmonton, Alberta, Canada Rocky Wang, Roger Skirrow Engineering Service Division, Alberta Transportation, Edmonton, Canada...
TBM soil conditioning Earth Pressure Balance Shield
In hard rock TBM the usage of EX EC prevent dust formation and reduce consumption of cutters EX EC can be used in combination with any kind of polymer in order to produce a , Injection Ratio , and the ratio , related to the different pressure condition existing in the excavation chamber in order to...
Chapman Young Inventions, Patents and Patent Applications ,
Controlled injection method and means for fragmentation of hard compact rock and concrete Patent number 6102484 Abstract Breaking hard compact materials, such as rock and concrete, is based upon a controlled-fracturing process wherein a high-pressure is used to pressurize a pre-drilled hole of appropriate geometry...
Rock Cutting Performance between Abrasive Waterjet and ,
Hard rock excavation in urban areas is a significant challenge owing to unacceptable excavation vibration levels and the necessity of rapid excavations Conventional blasting methods and the use of a tunnel boring machine TBM are...
CONTROLLED INJECTION PROGRESS TOWARDS ,
The general features of a device to use Controlled Injection CFI for either rock excavation or secondary breakage are illustrated in Figure 1 A injection tube or barrel is...
Single Shield TBM
Shielded Hard Rock TBMs have an excavation diameter which is larger than the shield skin In addition, the excavation axis of the cutterhead is slightly higher than the machine axis In addition, the excavation axis of the cutterhead is slightly higher than the machine axis...
Foundation Services Chemical Grout Injection Soil ,
On the other hand, water control chemical grouting is intended to stop water movement in granular soil or rock Injection points are laid out in a grid pattern, with waterproof masses created at the injection ,...
TBM Conditioning Additives Sand
TBM Conditioning Additives for EPB or Slurry Shield Machines , THEN OPEN SHIELD CAN BE USED 80 70 60 NO OR LOW-RATE CONDITIONING 50 40 30 CONDITIONING DUE TO COARSE but not all hard rock TBMs are equipped for this kind of application1 2 4 6 8 2 1 4 6 8 2 10 4 6 8 100 GRAIN SIZE d mm Figure 13 The use of additives on Hard Rock machines ....
Investigation of a hydraulic impact a technology in rock ,
Young, C Controlled injection for hard rock excavation In 37th US Rock Mechanics Symposium, Vail, Colorado 1999 Google Scholar...
First of four Seli EPBMs ready for Copenhagen
The cutterhead of the first machine was turned and its injection system activated for a test demonstration for the gathered audience of owner representatives from Copenhagen, Seli factory workers and staff, and representatives of machine design partner, Kawasaki of Japan...
How to break up concrete and rocks for removal? Dexpan ,
Concrete Demolition and Rock Breaking has never been easier with Dexpan® Non-Explosive Demolition Agent Dexpan® is a cement with amazing 18,000 PSI expanding strength when mixed with water Poured into drilled holes, Dexpan® breaks concrete and ,...
Frost Heave Mitigation Using Structural Polymer Injection
A silty/fine sand backfill was used over a rock outcrop for a distance 67 of about 100 feet and a frost heave over 3 inches 75 mm commonly develops across this stretch during 68 the winter...
Specification and Guidelines for the use of specialist ,
Specification and Guidelines for the use of specialist products for Mechanised Tunnelling TBM FOREWORD EFNARC is the European federation dedicated to specialist construction chemicals and concrete systems...
Chemical Demolition Agent Non
Controlled Rock Concrete Demolition Bustar expansive grout has been used in thousands of projects ranging from concrete removal and concrete demolition of structures ranging from small equipment pads to massive bridge piers, heavily reinforced turbine foundations and lock wall pre-splitting...
Excavation in US Page 10 Hotfrog US
Applied Geodynamics offers Controlled- Injection, a revolutionary non-explosive method for hard rock excavation, secondary breakage and concrete demolition Concrete Demolition AIR BLAST Civil Construction Penney s Construction Company HARTFORD, CT 860 241 0933...
Injections and rock consolidation
Injection operations cover an extensive range of applications, from waterproofing to crack sealing and ground-rock consolidations Water inflows in tunnel structures represent major hazards, also hindering and delaying excavation and rifting process...
How to break rocks with Chemical Rock Breaking, Cutting ,
Dexpan® chemical rock breaking can also be applied along with traditional demolition tools like jackhammers, wrecking balls, hydraulic breakers, diamond blade concrete saws, diamond wire sawing machines, and chain saw stone cutters to help cut cost, work time and increase safety, Plus because it works as silent demolition, Dexpan® is perfect for demolition contractors, drilling and blasting ....
54 CONTROLLED INJECTION METHOD AND MEANS FOR ,
Controlled- injection for hard rock excavation Chapman Young Applied Geodynamics Inc, Steamboat Springs, Colorado, USA ABSTRACT A new non-explosive method to excavate hard rock and concrete has been developed, tested and demonstrated in a mining environment...
Products for TBM
Grippers for hard rock and the Single Shield TBM for tunneling through rock and other stable, non- , excavation and progress Sika® TBM 20 Disc cutter cleaner and clay remover , PRODUCTS FOR TBM INJECTIONS 8 CONCRETE PRODUCTS FOR TBM BELT REPAIR...
Guide Specification for Controlled Low Strength Materials ,
-excavation, tion, loss of entrained air, settlement, or subsidence CLSM is often used in applications of , Making Performed For Cellular Concrete interchanged The specifier is encouraged to , Guide Specification for Controlled Low Strength Materials CLSM 0-1 -1 -3 - Material ....
29th International Conference on Ground Control in Mining
29th International Conference on Ground Control in Mining 1 Singh, S Evaluation of Rock Excavation Technologies for Seismically Active Mines S Paul Singh, Professor...
CONTROLLED INJECTION PROGRESS TOWARDS ,
In the Controlled Injection CFI method a viscous is injected into the bottom of a pre-drilled hole in the rock to be broken by means of a barrel incorporating an inexpensive and highly effective hole-bottom sealing method...
NFM Technologies
The double shield TBM tunnel boring machines allows faster tunnel excavation in hard rock formations as the segments are installed during excavation...
Providing ECOBUST, The Fastest, Most Powerful, Most ,
ECOBUST is the premier source for the most economical non-explosive demolition agents on the market Ecobust provides a safe, noise free, effective, environmentally friendly solution for rock and concrete breaking Ecobust is developed for small or large projects, does not require special training, or permits Applications include and not limited to concrete and rock demolition, rock ....
breaks up concrete
Otuonye and colleagues feel that Controlled Injection CFI fracturing is the answer to the problem The preferred demolition/excavation method should have the ability to pressurize a controlled fracture in such a way that pressures can be maintained to increase the number of fractures, he says...
Excavation in CO Hotfrog US
Applied Geodynamics offers Controlled- Injection, a revolutionary non-explosive method for hard rock excavation, secondary breakage and concrete demolition Concrete Demolition AIR BLAST Civil Construction Vacmasters Arvada, CO 303 467 3801...
Mining and Tunneling
In hard and soft rock mining, changes in humidity and temperature affect weak strata, causing rock falls and rib degradation Effective surface support and the protection against weathering of rock and strata are critical to the safety, efficiency and longevity of any mining operation...
40 free Magazines from AQUACOM
46 Magazines from AQUACOM found on Yumpu - Read for FREE , Controlled- injection for hard rock excavation Controlled- injection for hard rock excavation , Colorado, Compact, Injection, Ofthe, Viscosity, Excavation Controlled- injection for hard rock excavation Controlled- injection for hard rock excavation from ....
Tail seal grease
Protection of the wire brushes and tightness of the tail seal are essential in tunnel excavation , Injection of the tail seal greases takes place in 2 steps , it guarantees a good pressure control and therefore optimal safety for the personnel and the equipment...
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