coal mining displacement sensor

COAL MINE EXPERT SYSTEM FOR PREWARMING OF COAL

COAL MINE EXPERT SYSTEM FOR PREWARMING OF COAL ACCIDENTS Mr Sachin M Dandage Ms Neha D Kadu PG Scholar Computer Science and Engg Department PLITMS Buldana Maharastra India displacement sensor and the external circuit is simple conversion When sensor...

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temperature sensors in coal mines

Application of wireless sensor network for 15-03-2018 From figure it is observed that the WSN technique in underground coal mines has been widely explored in the areas of gas mine personnel and equipment monitoring however it has not been adopted for monitoring some of the important parameters such as temperature and humidity air pressure mine dust concentration mine fire mine...

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Similar simulation study on the characteristics of the

Dec 19 2017 0183 32 In the test the materials whose mechanical properties were similar to the prototype were utilized to simulate the coal seam mining Cheng et al 2016 During the mining process the deformation displacement failure and stress of the observation model could be measured and the measurements were used to analyze and conjecture the actual situation in the field Chen et al 2015...

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Dynamic monitoring research on displacement of rock mass

Jan 01 2011 0183 32 Arrangement on displacement dynamic monitoring of rock mass in coal seam floor For monitoring the change of displacement of rock mass in coal seam floor with the 1604 workface mining the borehole was constructed in the location which the distance of mining position and boreholes was 110 m and the seven displacement monitoring sensors...

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PDF Monitoring the Displacement the Roof of Underground

Sensor 1 interface in the system for controlling the displacement of the mine workings In connection with the possible emergence of the need to work with the received data...

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Geotechnical fiber optic monitoring solutions

Safe and reliable monitoring solution for the coal mining activities is not an option Results of coal seam fire could be catastrophic Excessive gas concentration is also very problematic since it can leads to mine evacuation and losses of production Existing electric based sensors...

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Mining on the Guajira Peninsula Wayuu Communities Fight

The International Work Group for Indigenous Affairs estimates that about 350 000 individuals have been negatively affected by the coal industry operating on the peninsula The seizure of Wayuu lands to expand mining has led to the displacement of entire families villages and communities since the mining began more than 30 years ago...

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Multigas detectors in mines

has revolutionised sensor technology with breakthroughs that improve detector performance in mining applications This is a real strength of the ALTAIR 4X multigas detector which comes with MSA XCell sensor technology The detector simultaneously measures up to four gases using the sensors...

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Fibre optic sensors for mine hazard detection

bars as strain gauges and long gauge length displacement sensors were developed to monitor the rock displacement The range of the fibre optic displacement sensor is 0- 200 mm accuracy of 01...

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Marco North America

Along with pressure sensors and displacement sensors the program contains vibration-detectors for coal-detection and approximation switch One can find a catalog on the back of this paper All sensors...

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Displacement Due to Mining in Jharkhand

Coal is the biggest mining industry of Jharkhand Prior to nationalisation in 1971 coal was mined in a haphazard manner by private mine owners After nationalisation the entire coal industry of the region was entrusted to Coal India CIL and its sub-sidiaries excepting a few captive mines of TISCO and IISCO Coal...

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Design of an Automatic Detector for Gas Desorption of Coal

Gas content measurement is a common technique in the prevention of coalmine gas disasters During the measurement the gas desorption amount of field coal samples needs to be obtained by an instrument working under the principle of gas collection by water displacement...

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coal mining displacement sensor

Mining Sensor Suppliers Manufacturer Distributor quasi-static behaviour of underground coal mine roofs and the response behaviour of the bolts In particular over 170 instrumented extensometers closure meters shear meters fully-grouted passive rebar fully-grouted of sub-micrometre resolution displacement sensors that measure the displacement...

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Dynamic monitoring research on displacement of rock mass

Jan 01 2011 0183 32 Arrangement on displacement dynamic monitoring of rock mass in coal seam floor For monitoring the change of displacement of rock mass in coal seam floor with the 1604 workface mining the borehole was constructed in the location which the distance of mining position and boreholes was 110 m and the seven displacement monitoring sensors were...

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Coal Mining Displacement Sensor

coal mining displacement sensor vakantiewoning-vida coal mining displacement sensor Displacement Transducer gauge head position sensors -intrinsically safe linear sensors crushing and transport of coal that takes place within a mining environment can generate significant volumes of combustible dust putting workers and mining equipment at risk of a coal...

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An improved method of three

horizontal displacement Generally the mining direction follows the strike direction which is perpendicular to the inclined direction to extract coal easily Figure 1 illustrates the profile of a mining subsidence basin after the coal mine has been exploited in the strike direction At this point the coal...

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technical Monitoring underground coal mining

for detecting surface displacement caused by underground coal mining is mentioned Post-mining subsidence This example deals with subsidence in an abandoned coal mining area located in...

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Sensors Free Full

Zhao et al designed a displacement sensor using a fiber optic grating technology which could be used to monitor tunnel roof displacement in coal min Zhou et al 18 developed an active fiber optic gas sensor...

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Automatic Monitoring System in Underground Engineering

Automatic monitoring system is one of the main means to ensure the safety of underground engineering construction This paper summarizes the current international research and application status of the...

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Research Study on Coal Mining Displacement and Rural

Coal Mining Displacement and Rural Livelihoods A Study in Mahanadi Coalfield Odisha The Study was sponsored with the Financial Support of NITI Aayog Government of India and Conducted by...

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Mining resettlement and lost livelihoods

The context for this study is the Benga coal mine and the planned resettlement of 736 s approximately 3 680 people The sub-optimal outcomes associated with the Benga mine...

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Monitoring Underground Mine Displacement Using

Feb 24 2015 0183 32 was performed using laser scanning in an underground coal mine where the displacement was induced by removing material by hand from the ribs Volume changes as small as 57 cm3 or slightly larger than a golf ball and as large as 57 549 cm3 were detectable in this environment despite the change in rib surface reflectance and mine...

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GUC Series Mine Safety Type Displacement Sensors

GUC series of mine safety type displacement sensor is a magnetostrictive principle of non-contact absolute position measurement of displacement sensors suitable for a mixture of methane gas and coal dust explosion hazards of coal mine...

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Mining on the Guajira Peninsula Wayuu Communities Fight

The International Work Group for Indigenous Affairs estimates that about 350 000 individuals have been negatively affected by the coal industry operating on the peninsula The seizure of Wayuu lands to expand mining has led to the displacement of entire families villages and communities since the mining...

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GUC Series Mine Safety Type Displacement Sensors

GUC series of mine safety type displacement sensor is a magnetostrictive principle of non-contact absolute position measurement of displacement sensors suitable for a mixture of methane gas and coal dust explosion hazards of coal mine Contactless...

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Similar simulation study on the characteristics of the

Dec 19 2017 0183 32 In the test the materials whose mechanical properties were similar to the prototype were utilized to simulate the coal seam mining Cheng et al 2016 During the mining process the deformation displacement...

Know More
Geotechnical fiber optic monitoring solutions

Safe and reliable monitoring solution for the coal mining activities is not an option Results of coal seam fire could be catastrophic Excessive gas concentration is also very problematic since it can leads to mine evacuation and losses of production Existing electric based sensors could be the source of critical security issu Read more...

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China Mining High and Low Thickness Methane Sensor KGJ25

China Mining High and Low Thickness Methane Sensor KGJ25 Find details about China coal mine sensor methane from Mining High and Low Thickness Methane Sensor KGJ25 - Beijing...

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coal mining displacement sensor

Mining Sensor Suppliers Manufacturer Distributor quasi-static behaviour of underground coal mine roofs and the response behaviour of the bolts In particular over 170 instrumented extensometers closure meters shear meters fully-grouted passive rebar fully-grouted of sub-micrometre resolution displacement sensors that measure the displacement of the bolt Collectively the array of...

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Sensors Free Full

Zhao et al designed a displacement sensor using a fiber optic grating technology which could be used to monitor tunnel roof displacement in coal min Zhou et al 18 developed an active fiber optic gas sensor to monitor the concentration of a specific gas which is ideal for detecting explosive or corrosive gases in some practical...

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